Hazards in Barren County

Quality of Dam Infrastructure

The American Society of Civil Engineers gave Kentucky a D+ on dam infrastructure, which is only slightly better than the national average. The average US dam is 60 years old, and most dams in Kentucky are over 50. As of 2019, 80 dams in the state are classified as two-fold risks, meaning that they are both high hazards and in poor or unsatisfactory condition. 47% of these 80 dams received that rating partially because they cannot hold enough rain during catastrophic storms. 89% of high hazard dams in Kentucky do not have complete emergency action plans on file with the state. 74% have simplified draft plans, but these are not widely shared and have not been adopted by local officials.

Types of Dam Failure

There are three types of Dam Failure:

1. Structural: This common cause is responsible for nearly 30% of all dam failure in the United States. Structural failure of a dam occurs when there is a rupture in the dam or its foundation.
2. Mechanical: Refers to the failure or malfunctioning of gates, conduits, or valves.
3. Hydraulic: Occurs when the uncontrolled flow of water over the top, around, and adjacent to the dam erodes its foundation. Hydraulic failure is the cause of approximately 34% of all dam failures.

Barren River Lake is ~10,100 acres at summer pool, with storage up to ~20,150 acres at max flood pool. The dam is an earthen embankment ~146 ft high and ~3,970 ft long; key operating elevations include a typical full/summer pool near 552 ft and flood pool around 590 ft (USACE/NOAA references). A breach or major gate malfunction could drive high-velocity flooding downstream along the Barren River corridor toward Warren County, with severity dependent on pool elevation, breach parameters, warning time, and channel capacity.

History of Dam Failure

There is no record of catastrophic dam failure at Barren River Lake; USACE conducts routine maintenance and monitoring (e.g., scheduled 2025 tailwater access closures for dam maintenance). Minor operational drawdowns or restricted access periods have occurred as part of normal safety and maintenance activities.

Probability

Catastrophic dam failure probability is very low due to federal ownership, design standards, inspections, instrumentation, and Emergency Action Planning; however, low-probability/high-consequence risk persists and warrants planning for warning, evacuation, and continuity. More credible scenarios include: gate/mechanical issues causing elevated releases, spillway operations during extreme inflows, or localized damages requiring emergency drawdown. State dam-safety authorities (KDEP Dam Safety) and USACE maintain oversight and emergency procedures that further reduce likelihood but not consequence.

Built Environment:

A breach can produce rapid inundation that damages or destroys buildings, blocks roads with debris, disrupts traffic and emergency services, and threatens water/wastewater systems—especially if a reservoir supplies drinking water.

Natural Environment:

Floodwaves can scour channels, mobilize debris and contaminants, and disrupt aquatic habitats and riparian systems.

Social Environment:

Fast-arriving floodwaters elevate life-safety risk, particularly for people living/working in low-lying downstream areas with limited warning or evacuation options.

Climate Impacts on Dam Failure:

Increasingly intense rainfall, longer wet periods, and more frequent extreme storm events can raise hydraulic loading on dams, heighten the risk of overtopping, accelerate erosion of embankments and spillways, and reduce warning/response time. Climate-driven shifts can also stress aging infrastructure and complicate reservoir operations (e.g., balancing flood control with drought storage), making proactive maintenance, updated hydrologic/hydraulic studies, and EAP exercises even more critical.

Barren County’s vulnerability to dam failure is primarily concentrated along the Barren River tailwater corridor downstream of the Barren River Lake Dam, where low-lying structures, roadways, and utility infrastructure could experience rapid and destructive flooding. River-adjacent neighborhoods, recreation areas, and rural road crossings are particularly at risk due to limited warning time and constrained evacuation routes. Populations most sensitive to these conditions include older adults, individuals with medical or mobility limitations, and residents of manufactured homes or low-income households located within or near the inundation area. Visitors engaged in recreation near the dam or within the tailwater region may also be exposed during high-release or emergency drawdown events. Maintaining updated dam failure inundation mapping, confirming the location of critical facilities and transportation links within potential flood zones, and ensuring robust public alerting systems—such as sirens, reverse-911 notifications, and door-to-door outreach—are essential to reducing life-safety risks and supporting timely response during any dam-related emergency.

Dam failure is a low-probability, high-consequence hazard for Barren County. The Barren River Lake Dam (NID KY03009) is a federal project with robust oversight, but downstream communities remain exposed to rapid-onset flooding under breach or high-release scenarios.

Location/Extent

In Barren County, drought extent is typically countywide, with impacts varying by soils, crop types, and water sources. Agricultural impacts (forage stress, reduced yields) are the most common, while potable water impacts are generally less frequent but possible during prolonged deficits or high summer demand.

Sensitivity is elevated for row-crop and pasture lands, small public water systems or systems with leakage/limited storage, and surface-water/groundwater users lacking redundant sources. BRADD’s Water System Vulnerability to Drought resource further highlights system-level considerations for the region.

Past Events

Notable events include the 2012 drought, when much of Kentucky—including Barren County—reached D3 (Extreme Drought) on the U.S. Drought Monitor, with widespread agricultural losses, elevated fire risk, and water shortages. From 2000–2020, Barren County experienced ~61weeks of D2 (Moderate) and ~14 weeks of D3 (Severe/Extreme) drought.

Probability

Long-term monitoring indicates drought is a recurrent hazard. Barren County experienced 633 total weeks of drought over the last 21 years—about a 49% chance that any given week features drought conditions. Projections suggest drought likelihood may increase with climate change as rising temperatures and shifting precipitation patterns extend dry periods.

Built Environment:

Lower reservoir and well levels can strain municipal water systems, increase infrastructure operating costs (e.g., pumping/energy), and trigger usage restrictions for businesses and institutions; prolonged deficits can reduce fire-flow availability for rural systems.

Natural Environment:

Drought reduces streamflow and aquatic habitat quality, stresses forests and grasslands, and can degrade water quality as lower volumes concentrate pollutants.

Social Environment:

The largest local effects are economic losses in agriculture (crop failures, livestock stress, higher irrigation costs) and secondary risks such as increased wildfire potential; households and small businesses can face water shortages and higher costs.

Climate Impacts on Dam Failure:

Rising temperatures increase evapotranspiration and soil‐moisture loss, while shifting precipitation patterns can produce longer dry spells punctuated by intense storms that do little to recharge groundwater. Hotter summers elevate water demand, stress crops and livestock, worsen algal blooms and other water-quality issues in low flows, and compound risks when heat waves coincide with drought—intensifying health, agricultural, and infrastructure impacts across Barren County.

Drought Vulnerability in the BRADD Region

Soil Susceptibility

Soil’s susceptibility to drought varies due to a myriad of factors. The map below depicts vulnerability to drought based on soil type from a moisture retention and availability perspective. For example a shallow fragipan limits the depth of the soil making it more vulnerable to moisture loss. Grey areas indicate that no soil data was available due to lakes, heavily urbanized areas, or strip mining. Susceptibility to Drought Scores were established using the criteria of infiltration, water movement, and water supply for the soils defined in the NRCS Soil Surveys that encompass the state.

Barren County’s vulnerability concentrates in agriculture (row crops, pasture, and livestock), small or single-source water systems with limited storage or high distribution losses, and households with lower adaptive capacity (income constraints, limited private well resilience). Rural residents relying on private wells/springs may face localized shortages sooner than municipal customers. Communities with higher shares of older adults or outdoor workers face compounding risks when heat coincides with drought. Continued investment in system leakage reduction, source redundancy, demand-side conservation, and drought contingency triggers reduces exposure for both municipal and rural users.

Barren County’s public water system demonstrates low vulnerability to drought.

The soil susceptibility map indicates that large swaths of Barren County’s soil experience low to moderately low susceptibility to drought.

Overall, Barren County has a low to moderate vulnerability to drought. Because drought is a non-spatial hazard, this same analysis can be applied to its respective cities – Cave City, Glasgow, and Park City.

Location/Extent

Past Events

BRADD records indicate few locally recorded events in the district and none historically ≥M3 in Barren County, though nearby counties have experienced small events. Regionally, occasional felt earthquakes occur in the ETSZ and WVSZ; the well-known 1811–1812 NMSZ sequence produced very strong shaking across Kentucky. Recent felt events in the central U.S. demonstrate that even moderate quakes can be widely felt due to eastern U.S. geology.

Probability

Scientists estimate that there is a 25-40% probability of a 6.0 or higher magnitude earthquake within any 50-year period. Though Western Kentucky has not experienced any recent earthquakes that have caused major structural damage, the potential for such an event warrants local government, residents, and businesses within the BRADD region to take precaution and implement plans, procedures, and projects to mitigate the impact of a strong earthquake. It’s really not a question of if but when. Earthquakes can occur at any time of year and warning time is essentially nonexistent. Barren County lies outside mapped major faults but would feel regional events; site soils can amplify shaking.

An earthquake could result in structural damage to older buildings, critical facilities, and infrastructure not designed to modern seismic codes. Bridges, utilities, and water systems could sustain significant damage, leading to service disruptions. Secondary impacts might include landslides in certain areas, hazardous material spills, and challenges in emergency response due to blocked roads and damaged communication systems. Economic losses could be substantial, particularly for uninsured property owners.

Built Environment:

Shaking can damage homes and business structures, collapse unreinforced elements, and disrupt roads/bridges, power, water/wastewater, and telecom. Post-event debris and utility outages can hinder emergency response.

Natural Environment:

Secondary effects—liquefaction, landslides, fires, and hazmat releases—can degrade soils, waterways, and habitats.

Social Environment:

Transportation disruption, hospital surge, power/water interruptions, and communications overload elevate life-safety risk and complicate reunification and care for vulnerable groups (children, older adults, LEP populations).

Climate Impacts on Earthquakes:

While climate change does not drive tectonic earthquakes, hydrologic extremes (prolonged drought, heavy precipitation, groundwater withdrawal/recharge) may alter subsurface stresses in limited contexts. The BRADD region has an overall low earthquake risk, so any climate influence on local frequency/severity is likely minor relative to tectonic controls.

Earthquake Vulnerability in Allen County

Allen County is mapped in a “light perceived shaking” zone for high-magnitude regional scenarios and does not contain significant local fault lines. Because earthquakes are non-spatial at the county scale, this vulnerability characterization applies countywide (including Scottsville). Key sensitivity factors remain older/unnretrofitted buildings, critical facilities, bridges, and lifelines on softer soils or in potential liquefaction areas.

Barren County’s overall earthquake vulnerability is low, but consequence hotspots exist where older or non-retrofitted buildings, unreinforced masonry, critical facilities, and dense nonstructural systems (labs, server rooms, suspended ceilings) coincide with amplifying soils in valleys and filled ground. Lifelines—bridges/overpasses on primary evacuation and freight routes (I-65 connectors, US-31E, Louie B. Nunn Cumberland Parkway), water/wastewater plants, pump/lift stations, and electric substations—can experience service interruptions out of proportion to ground-motion intensity. Populations with limited mobility, access to transportation, language barriers, or reliance on powered medical devices face higher functional risk during outages. Priority mitigations include nonstructural seismic bracing/anchorage, selective retrofit of critical/legacy structures, continuity planning (backup power, fuel, water), and bridge/utility vulnerability screening to target cost-effective upgrades.

For Barren County, earthquakes are low-probability but potentially disruptive events driven by regional sources (NMSZ/WVSZ/ETSZ). Consistent with BRADD’s assessment, expected local shaking is generally “light” for large regional scenarios; however, nonstructural damage and lifeline outages can still create outsized community impacts. Because earthquakes are non-spatial hazards, it can be assumed that this analysis should be applied to Barren County’s respective cities, Cave City, Glasgow, and Park City.

Location/Extent

Location and Extent

Exposure is non-spatial for cold (whole county); for heat, smaller urbanized areas (Glasgow, Cave City, Park City) can experience urban heat-island effects and warmer nights that limit recovery.

Historical Occurrences

Cold. Within the regional record (2010–2021), Barren County had one wind chill watch (2014) and one wind chill warning (2015); these events were issued region-wide.

Heat. Across 2010–2021, the BRADD region recorded 18 excessive heat watches and 71 excessive heat warnings; county-level breakdowns show Barren County averaged ~27.9 extreme-heat days per year (2010–2016).

Probability

The probability of extreme temperature events in Barren County is increasing. Extreme cold is occasional at the county scale (rare wind chill watches/warnings since 2010), while extreme heat is also occasional but with higher annual frequency of hot days and periodic watches/warnings.

Extreme heat can lead to heat exhaustion and heatstroke, particularly in outdoor workers, the elderly, and low-income households without access to cooling. It also increases energy demand, raising utility costs and the likelihood of power outages. Severe cold poses risks of frostbite, hypothermia, and infrastructure damage, including frozen pipes and malfunctioning heating systems. Both extremes can disrupt agricultural yields, livestock health, and local economies.

Built Environment:

Cold can burst buried water pipes, strain metal bridge members, and affect trucking/rail operations (e.g., diesel gelling). Heat can soften asphalt, stress vehicle cooling systems and rail operations, and increase water demand, sometimes reducing fire-flow availability.

Natural Environment:

Cold snaps threaten livestock and wildlife and can freeze ponds/streams. Heat can degrade water quality, drive algal blooms, and reduce crop yields and dairy productivity.

Social Environment:

Cold elevates exposure risks for people without adequate shelter or heat and can increase CO poisoning and fire risk; both cold and heat create economic losses (e.g., utility repair, agriculture) and can trigger business/school closures. Heat is the leading U.S. weather-related killer, with illnesses from fatigue to heat stroke.

Climate Impacts on Extreme Temperatures:

Climate change models predict and increase in overall temperature globally for the coming decades, including the BRADD region. With a potential rise of several degrees Fahrenheit, multiple services, systems, and activities face disruption and impact. Temperature increases this small may not seem threatening, but the cumulative impacts will affect weather events, human health, and ecosystem functions, along with economic and social issues related to energy use and cost of living.

Working with  AT&T’s Climate Resilient Communities Program and the  Climate Risk and Resilience (ClimRR) Portal, BRADD identified additional opportunities for hazard mitigation action items associated with climate impacts for Extreme Temperatures in the Barren River Region. To view an interactive report of these findings,   click here.

Barren County’s vulnerability concentrates in smaller urban areas and heat-sensitive populations (older adults; low-income households without efficient cooling; outdoor workers; people with chronic conditions), alongside rural residents who rely on private wells or space heating that may be unreliable during outages. Schools, long-term-care, and congregate settings face operational risks during prolonged heat, especially with warm nights; during winter outbreaks, ice-related power loss can quickly escalate cold exposure risks for residents with limited mobility or backup heat. Priorities include targeted risk communication, cooling/warming access, backup power for critical facilities, water-system resilience (pressure/storage), and neighborhood-scale checks for high-risk individuals during alerts.

For Barren County, extreme heat and extreme cold are both occasional hazards; heat poses the higher routine health burden, while cold outbreaks—often coupled with ice and power interruptions—create short-fuse, high-consequence conditions.

On average, Barren County experienced 27.9 extreme heat days per year between 2010 and 2016. Since 2010, Barren County has experienced one wind chill watch (2014) and one wind chill warning (2015).

Because of these factors, Barren County experiences moderate vulnerability to extreme temperature events. Cave City, Glasgow, and Park City reflect Barren County’s overall history of extreme temperature, and therefore experience moderate vulnerability as well.

Flood-prone areas in Barren County include low-lying and river-adjacent locations, as well as roadways and agricultural land near the Barren River Lake, Beaver Creek, and other tributaries. According to the First Street Foundation, approximately 13.6% in Barren County have a 30-year flood risk. Flood depths in these areas could exceed 3 feet, especially in neighborhoods with poor drainage or limited elevation.

Projections from the  Climate Risk and Resilience Portal (CLIMRR) indicate that the annual number of days with extreme precipitation (greater than 1 inch per day) in Barren County is expected to increase by 5–10% by the mid-21st century under moderate emissions scenarios. This suggests a growing likelihood of flash flooding events, particularly during spring and summer storm seasons.

Barren County, Unincorporated, the City of Cave City, the City of Glasgow, and the City of Park City all possess zero (0) Repetitive-Loss (RL) and/or Severe Repetitive-Loss (SRL) properties. There are two (2) definitions for “Repetitive-Loss” and there are two (2) definitions for “Severe Repetitive-Loss”: There are the National Flood Insurance Program (NFIP) program definitions of “Repetitive-Loss” and “Severe Repetitive-Loss” and there are the Flood Mitigation Assistance (FMA) definitions of “Repetitive-Loss” and “Severe Repetitive-Loss.”

Barren County experienced 31 flood events over 20 years (~1.55 events/year). This places Barren in the mid-range of regional flood frequency.

Exposure is countywide: riverine flooding along the Barren River and tributaries; flash flooding in small headwater basins and road crossings; and urban/poor-drainage flooding in Glasgow, Cave City, and Park City. Karst features (sinkholes, losing streams) can concentrate water and cause rapid, localized inundation when drainage is obstructed.

Click Here to view a summary of all past Disaster Declarations in the BRADD Region.

Below you will find a listing of past NOAA Flood and Flash-Flood Events from 2000-2020 for Barren County.

Given the historical record, Barren County should plan for recurring annual flood potential, with variability by season and storm track. Regionally, counties show a 70–400% “annual chance” framing based on events per year; Barren’s ~1.55 events/year indicates regular exposure that warrants ongoing maintenance of drainage systems, culverts, and roadway low-water crossings.

Extreme heat can lead to heat exhaustion and heatstroke, particularly in outdoor workers, the elderly, and low-income households without access to cooling. It also increases energy demand, raising utility costs and the likelihood of power outages. Severe cold poses risks of frostbite, hypothermia, and infrastructure damage, including frozen pipes and malfunctioning heating systems. Both extremes can disrupt agricultural yields, livestock health, and local economies.

Built Environment:

Flooding can cause structural damage to both residential and commercial buildings and destroy furnishing and inventory.
Flooding will causes inconvenience or stoppage to many system. Transportation systems such as roads and railways become unpassable. Large amounts of water from a flood can affect water management systems such as the backup or hiatus of drainage, sanitary, and sewer systems. As heavy rains persist during a flood event, excess water drains into the ground water system. This causes the water table to rise and cause further ground water floods. If chemicals are mixed with flood waters, this can contaminate the ground water, a common source of fresh water for communities.

Natural Environment:

As flood waters engulf the surrounding natural environment, they are saturated with chemicals and other substances associated with the manmade environment that they have also been in contact with. As these abnormal waters settle and flows through natural ecosystems they can alter and even destroy both plant and animal life. When the flow of flood waters becomes so immense, it can physically destroy or uproot naturally growing vegetation and also drive specific species of animals out of their natural habitats for good.

Social Environment:

People
People with property located in the floodplain or within areas subject to seepage are vulnerable to flooding. Stoppage to transportation systems can make it very difficult for isolated populations to receive aid or escape breeching flood waters. Vulnerable populations, such as the elderly or people who need medical attention, may be temporarily cut off from accessing life-saving resources.

Economy
Floods can affect local economies by disrupting transportation systems needed for people to get to and from work and destroying places of business and means of production. When flooding occurs in more rural areas, livestock and agricultural system will be affected. Crops can be destroyed in the growing season, or prevent from seeding in the off season. Large insurance payouts to residents or business owners who have procured flood insurance might also have an economic impact.

Climate Impacts on Flooding:

Climate change models predict and increase in overall temperature globally for the coming decades, including the BRADD region. With a potential rise of several degrees Fahrenheit, multiple services, systems, and activities face disruption and impact. Temperature increases this small may not seem threatening, but the cumulative impacts will affect weather events, human health, and ecosystem functions, along with economic and social issues related to energy use and cost of living.

Working with  AT&T’s Climate Resilient Communities Program and the  Climate Risk and Resilience (ClimRR) Portal, BRADD identified additional opportunities for hazard mitigation action items associated with climate impacts for flooding in the Barren River Region. To view an interactive report of these findings,   click here.

Barren County’s vulnerability concentrates in river and stream floodplains, low-water crossings, and urban drainage bottlenecks within Glasgow/Cave City/Park City. Manufactured housing areas, older housing with limited elevation/freeboard, critical facilities in or near the SFHA, and small businesses with ground-level inventories are especially sensitive. Populations with limited mobility, limited vehicle access, or medical dependencies face higher functional risk when roads close or power fails. Karst-dense neighborhoods are susceptible to sudden, localized flooding if sinkhole inlets clog; rural private-well users can face post-flood water-quality issues. Targeted actions—culvert/ditch maintenance and upsizing, low-water crossing warning systems, backflow prevention, structure elevation or acquisition where feasible, and public education on turn-around-don’t-drown—reduce exposure and losses.

Overall vulnerability is defined using the classification definitions from FEMA.

Barren County faces a high level of vulnerability to flooding, as evidenced by 16 flood events between 2000 and 2020 and multiple FEMA Disaster Declarations related to flooding in 1998, 2004, 2009, 2010, 2020, and 2021. The county’s combination of riverine systems, low-lying areas, and localized drainage issues contribute to recurring flood risks across both rural and urban communities. Among its municipalities, the City of Glasgow experiences the greatest exposure, with eight recorded flood and flash-flood events since 2000, resulting in a medium vulnerability classification. The Cities of Cave City and Park City, each with a single recorded event over the same period, are considered to have low vulnerability to flooding.

Between 2000 and 2020, Barren County has had 16 flood events. Further, Barren County has received FEMA Disaster Declarations as a result of flooding in 1998, 2004, 2009, 2010, 2020, and 2021. Overall, Barren County experiences high vulnerability to flood events. The risk for Barren County’s cities is analyzed below.

The City of Cave City has had one historic occurrence of flood and flash-flood events since 2000. Its vulnerability is low.

The City of Glasgow has had eight historic occurrences of flood and flash-flood events since 2000. Its vulnerability is medium.

The City of Park City has had one historic occurrence of flood and flash-flood events since 2000. Its vulnerability is low.

The extent of a hazardous materials release is characterized by the type of substance, quantity released, state (gas, liquid, solid), dispersion behavior, and weather/terrain conditions. Releases may be constrained and local (e.g. a leaking drum or tank) or large and far-reaching (e.g. vapors spreading over multiple miles, groundwater contamination migrating). Depending on the chemical’s toxicity, volatility, and persistence, an incident could produce acute health effects, long-term environmental harm, or chronic exposure zones. In the BRADD region, credible scenarios include a small spill alongside a highway, a rail car release near populated areas, or a storage tank failure, each producing different spatial footprints and hazard zones.

The BRADD region has a record of hazardous materials incidents, particularly associated with transportation and industrial operations. Kentucky has experienced several costly hazmat transit incidents in recent years. In rail transport, derailments involving chemical cargo have spurred evacuations and environmental response. For example, in 2007, a major derailment in Kentucky released hazardous materials and required area evacuation. Nationally and regionally, chemical spills from industrial plants have caused injury, property damage, and remediation efforts. Some incidents, such as the 1981 Louisville sewer explosions (driven by hexane vapors in sewer lines), illustrate how improper chemical disposal can lead to infrastructure destruction. These past events highlight the potential for both acute and lingering impacts of hazardous material releases.

The probability of a hazardous materials incident in Barren County is moderate. Most releases tend to be small and localized due to equipment failure, human error, or transportation-related accidents. However, given the presence of chemical transport corridors (rail, interstate highways) and industrial facilities, the chance of a more serious event cannot be discounted. Natural hazards (storms, flooding) may also trigger secondary releases from damaged tanks or infrastructure. Planning for hazmat risk typically involves mapping potential release sites and integrating them into probabilistic risk models.

Hazardous materials releases can produce widespread and cascading effects across built, natural, and social environments.

Built Environment:

Buildings are vulnerable to a hazardous materials spill. The combination of fire, water, and chemicals could result in an explosion that is likely to damage both the buildings storing hazardous materials and the area surrounding the storage area. Proper storage and handling of these chemicals is critical in decreasing built environment vulnerability. A hazardous materials spill anywhere along the Barren River Region’s transportation network will have an immediate impact on travel time and delays. Municipal water systems and storm water drainage systems are vulnerable to a toxic spill. Chemicals that reach the water system could limit the supply of potable water.

Natural Environment:

Factors contributing to the vulnerability of natural systems are the type of chemical spilled the physical state of the chemical, the amount released, and the location of the incident. Vulnerability of the natural environment to hazardous materials events is higher for species and ecosystems in the immediate vicinity of the event, and moderate for those located downstream.

Social Environment:

People
A hazardous material spill could isolate parts of the region from critical facilities. Mobility impaired persons would be vulnerable to a spill or vapor release that requires immediate evacuation. Similarly, people with hearing or sight impairments may require special notification if the standard announcements are not available. Children with respiratory problems are at a higher risk of vulnerability to chemical vapors. Elderly with mobility impairments or compromised immune systems may suffer greater injuries in the case of a hazardous material release. Low-income residents are more likely to reside in closer proximity to hazardous facilities than wealthier counterparts. If displaced by a hazardous materials spill, limited income residents may face additional hardship.
Economy
Cost of replacing damaged property; a spill at a fixed facility , may cause temporary or permanent closure

Climate Impacts on Hazardous Material Spills:

As climate change impacts other sectors and hazards, such as increased severe storms, heat waves, and flooding, there is a chance that hazardous materials will become more unstable due to potential disasters. During flood events, materials may be spilled or introduced into waterways and severe wind or winter storms may cause the spillage of materials during vehicular accidents or building and infrastructure damage. Sinkhole openings may introduce hazardous materials into the groundwater system. An increased use in hazardous materials may also occur as part of other mitigation and adaptation activities, such as development, and may increase the exposure for these impacts to occur.

This hazard presents a moderate risk to Allen County, due to the large amount of manufacturing and development, sensitive groundwater and surface water resources, and the probability for severe events to occur.

Potential impacts include:

• increase spillage of hazardous materials
• more frequent transport and storage of hazardous materials
• threat to environmental and human health during a spill or contamination event
• threat from exposure during increased use to mitigate other impacts
• threat to infrastructure during a spill or other event
• economic loss from cleanup or health impacts

Vulnerability to hazardous materials incidents in the Barren County spans the built, natural, and social environments. Facilities, pipelines, transport routes, and storage tanks located in or near populated areas are particularly exposed to risk. Ecological systems—including waterways and karst aquifers—are susceptible to contamination from chemical releases. Socially, communities with limited emergency response capacity, lower socioeconomic status, or older infrastructure may experience disproportionate harm and slower recovery. Understanding these vulnerabilities is critical to informing land-use controls, buffer zones, monitoring, and public awareness programs.

Barren County’s vulnerability is primarily related to the transport of fuels and agricultural chemicals along U.S. 31E, KY 100, and local farm routes. While large-scale industrial facilities are limited, the county’s agricultural base and fuel storage operations pose localized risks. Karst terrain throughout the county increases the potential for groundwater contamination if spills occur. Glasgow, Cave City, and Park City’s proximity to regional transport corridors and their reliance on groundwater resources heighten environmental and public health sensitivity to releases.

Emerging infectious disease (EID) outbreaks can range from small, localized clusters to countywide or multi-county epidemics, depending on the pathogen’s transmissibility (e.g., R₀), incubation/asymptomatic period, mode of transmission (airborne, droplet, contact, vector, food/water), clinical severity, and availability of countermeasures (vaccines/antivirals). Severity is often expressed through combinations of attack rate, hospitalization and ICU utilization, case fatality ratio, and the duration/number of waves, which together determine stress on healthcare, schools, businesses, and critical services. FEMA’s planning policy expects plans to describe a hazard’s type, location, and extent and to include previous occurrences and the probability of future events; for EIDs, this typically means using qualitative scales (e.g., low/moderate/high) informed by public-health surveillance and scenario analysis.

Barren County’s EID context mirrors the region and state: 2009 H1N1 influenza produced widespread illness and vaccination campaigns; COVID-19 (2020–2022) caused repeated surges, remote learning periods, healthcare strain, and workforce disruptions across south-central Kentucky, with lingering recovery needs. At smaller scales, seasonal influenza, gastrointestinal outbreaks, hepatitis A, and tick-borne illnesses recur and periodically challenge local public-health capacity. For hazard-mitigation purposes, these events document that infectious hazards are recurring and can escalate quickly, even when initial clusters are small.

EIDs are non-spatial at the county scale: exposure is countywide and follows human activity patterns. Transmission risk is elevated where people congregate or where mobility is high, including schools and childcare sites, long-term care and healthcare facilities, workplaces and distribution/logistics hubs, correctional settings, places of worship, and events/venues. Vulnerability may be higher for neighborhoods with older adults, people with chronic conditions, uninsured/under-insured residents, or limited access to primary care, and for settings with shared housing or limited ventilation.

The probability of emerging infectious disease (EID) activity in Barren County is ongoing and recurrent, though severity varies by pathogen. Routine outbreaks (e.g., novel respiratory viruses, GI pathogens) should be expected annually to every few years, with countywide transmission most likely during school terms, peak respiratory seasons, and periods of high mobility. The likelihood of a significant EID event (i.e., one that stresses healthcare and disrupts schools/workplaces) over a typical 5–10-year planning horizon is moderate, driven by regional travel corridors, congregate settings (schools, long-term care, workplaces), and periodic introductions from outside the region. Probability increases with factors such as low vaccination/booster uptake, limited access to primary care, and delayed detection, and decreases with strong surveillance, rapid testing, vaccination campaigns, and effective risk communication. Climate-related stressors (e.g., hotter summers, air-quality episodes, shifting vectors) can indirectly elevate transmission risk for certain diseases by increasing indoor crowding or extending vector seasons, but the dominant drivers for EIDs in Barren County remain human mixing patterns, healthcare capacity, and public-health interventions.

Impact

Emerging infectious diseases (EIDs) can trigger cascading consequences across systems even when case counts are moderate, because illness, isolation, and precautionary measures disrupt people, places, and services simultaneously. Direct health impacts (morbidity, mortality) are compounded by workforce absenteeism, supply-chain delays, and surges on healthcare and public health operations. The breadth of consequences depends on the pathogen’s transmissibility and severity, the speed of detection, and the availability of countermeasures (testing, treatment, vaccination) and risk communication.

Built Environment

EIDs strain the built environment indirectly by stressing the facilities and systems people operate. Hospitals, clinics, EMS stations, and pharmacies can exceed functional capacity, requiring surge spaces and changes to ventilation and patient flow. Public buildings, schools, and workplaces may need operational adjustments (enhanced cleaning, spacing, HVAC improvements), and staffing gaps can delay maintenance for roads, utilities, and public facilities. Supply-chain disruptions can slow construction projects and limit availability of critical parts for water/wastewater, transportation, and communications systems.

Natural Environment

While EIDs primarily affect human systems, response activities can influence the environment. Increased use of medical disposables and disinfectants elevates medical and solid-waste volumes, requiring proper handling to avoid secondary environmental impacts. Wastewater surveillance—often deployed for EIDs—integrates environmental sampling into public health practice and necessitates careful lab and sampling protocols. Changes in human activity (e.g., reduced travel) may temporarily alter local air quality and traffic-related emissions.

Social Environment

EIDs most strongly affect the social environment. Illness, isolation, and caregiving responsibilities reduce workforce availability, interrupt schooling and childcare, and strain household finances—especially for hourly and small-business workers. Behavioral-health needs rise due to stress, grief, and prolonged uncertainty, while misinformation can erode trust and complicate protective actions. Impacts are disproportionate for older adults, people with chronic conditions, low-income and uninsured residents, and those in congregate or high-exposure settings (schools, long-term care, logistics and retail).

Climate Impacts on EID

Climate does not directly “cause” EIDs, but it can shape risk conditions. Hotter summers and poor air-quality days can drive indoor crowding, increasing transmission opportunities for respiratory pathogens. Shifts in precipitation and temperature can extend vector seasons (ticks, mosquitoes) and alter wildlife–human interfaces that enable zoonotic spillover. Climate stress on infrastructure and households (e.g., heat waves, severe storms) can also complicate access to care and continuity of operations, amplifying the consequences of an outbreak when it coincides with other hazards.

In Barren County, vulnerability to infectious disease is shaped by factors including population density, age structure, access to healthcare, and mobility patterns. Urban and semi-urban counties with hospitals, congregate settings (e.g. long-term care, prisons, schools), and higher population turnover may face greater exposure and transmission potential. Rural areas may face challenges in accessing care, diagnostics, or public health infrastructure, compounding vulnerability if an outbreak reaches them. Counties with more aging populations or higher prevalence of underlying health conditions (e.g. diabetes, heart disease) may suffer higher morbidity and mortality rates. Gaps in vaccination coverage, health literacy, and public health capacity can amplify risk. Interjurisdictional coordination, surveillance, and rapid response capability are therefore critical to reducing vulnerability across the region.

Barren County faces elevated vulnerability due to its larger population base (Glasgow area), medical facilities, schools, and businesses that attract people from surrounding counties. The presence of regional health institutions and higher connectivity may both aid in disease detection and increase exposure risk. The county’s public health infrastructure must be capable of rapid vaccination, testing, and contact tracing to guard against escalation.

The Kentucky Geological Survey (KGS) identifies two ways in which sinkholes collapse:

1. The roof of a cave becomes too thin to support the weight of the material above it and collapses.
2. Limestone bedrock develops a fracture that is enlarged by water dissolving the limestone. As the limestone erodes, the soil above it slowly falls into the developing sinkhole. This type of cover-collapse is typically very slow and occurs over a long period of time. Only in rare instances will limestone bedrock dissolution cause a rapid collapse.

Karst-related hazards happen quickly and without warning. However, scientists have mapped a large portion of the BRADD region to determine where these hazards are most likely to occur. A snapshot of this mapping is located above. to view a fully interactive map and explore sinkholes by jurisdiction, click on the link below.

Barren County lies within south-central Kentucky’s extensive karst belt, so the long-term probability of sinkhole formation or subsidence is elevated countywide—even though individual collapses are sporadic and difficult to predict. Likelihood increases where natural voids coincide with triggers such as intense cloudbursts, drought-rewet cycles, leaking water/sewer lines, poorly managed stormwater, or excavation that alters drainage. Areas with thin soils over soluble limestone and places where runoff concentrates (e.g., along roads and at outfalls) face the greatest chance of new openings or accelerated subsidence.

Damages to human-made structures caused by sinkholes can range from minor to severe. Office buildings, homes, roads, utility lines, and other critical facility or structure located above a sinkhole could be affected. If the sinkhole is large enough, it can affect an entire building or home when it collapses. Minor sinkholes will cause brief damage and are usually fixed with simple excavation techniques.

Drainage water runs into sinkholes during heavy rains and will affect any structures built within the flood plain of a given sinkhole. Present sinkhole vulnerability to flooding can alter the urbanization plans and other forms of expansion and commercialization.

Transportation systems are greatly affected by sinkholes since much of the BRADD’s roadways and highways are constructed over sinkholes. When these sinkholes collapse they not only destroy the road itself but the ground beneath it. Intricate and expensive excavating techniques must be utilized to repair a roadway and its ground foundation affected by a sinkhole.

Because of the vast amount of sinkholes in the BRADD region, there is an extensive groundwater network that supplies public water systems serving many residents. Groundwater essentially originates from rain or other forms of precipitation that soak into the ground and move forward to fill cracks and other openings in soils and rocks. This permeable layer is known as an aquifer. Groundwater is also an abundance natural resource making up 9% of all the freshwater in the world. This water is a direct main source for usable, fresh water for over a million residents in Kentucky, including the Barren River region. For surface streams, groundwater provides as a base flow when it is not raining. Groundwater, especially in a karst environment, is highly susceptible to contamination. Impure rain water, septic tank effluent, agricultural pesticides, and animal waste all contribute to the contamination of groundwater through seepage and runoff. However, contamination problems are aggravated in karst areas by the practice of the disposal of solid and liquid wastes into sinkholes where they may be washed directly into the aquifer.

The natural environment is very vulnerable to the effects of sinkholes. Carbonic rock such as limestone is eroded away by acidic rain and water runoff. This carves out subterranean passages throughout the underside of the landscape. When the ground level clay or cohesive rock materials cannot support the weight, they cave in and fall into these passages. The result is a karst landscape. Sinkhole collapse greatly damages and alters the natural environment. Groundwater contamination can kill cave aquatic life.

People – Anyone living or working near sinkholes or within the drainage basin of a sinkhole is vulnerable. Karst can lead to radon-related health concerns, sinkhole collapse can lead to loss of life and property, groundwater contamination may lead to build-up of dangerous gases in homes and businesses, and flooding may cause drowning.

Economy – Cost of making repairs to property, repairing roads, preparing special foundations for large buildings, an extending public water lines to replace polluted groundwater.

There is an expected impact on sinkholes due to climate change. Increasing temperatures will likely affect hydrologic processes, enhance dissolution of limestone, and promote soil failure. It was found in one study that with every increase of 0.2ºF in global temperature, there is a 1-3% increase in the number of sinkholes, thus, there is a high possibility that an increase in sinkholes is due to climate change. With an increase in intense rain events, there could also be an increase in sinkholes opening due to runoff and undermining of soil.

Potential impacts include:

• Damage to roads and property
• Displacement of residents
• Transportation issues (traffic, blocked routes)
• Economic loss due to changes in development patterns or sinkholes/flooding

Working with AT&T’s Climate Resilient Communities Program and the Climate Risk and Resilience (ClimRR) Portal, BRADD identified additional opportunities for hazard mitigation action items associated with climate impacts for Karst Landscapes in the Barren River Region. To view an interactive report of these findings, click here.

Vulnerability is highest for built assets located over karst features—homes, schools, roads/bridges, and buried utilities—especially in and around Scottsville and along transportation corridors where surface water is concentrated. Natural systems (springs, caves, aquifers) are sensitive to rapid contamination via sink points and losing streams, making groundwater protection a priority. Social impacts fall most on homeowners, small systems, and well-dependent properties with limited resources for repairs or relocation. Practical measures to reduce vulnerability include steering new development away from mapped/high-susceptibility zones, tightening stormwater controls, maintaining utility leak detection programs, and requiring geotechnical due diligence for projects over karst.

Major karst potential is present along with a significant number of sinkholes in the northern half of Barren County. However, the southern half of the county has a low to negligible potential for karst/sinkholes.

Based on KGS’s data there are 6,373 Topo and LiDAR-identified sinkholes within Barren County. In the unincorporated areas of the county (only county land), there are 5,966 topo and LiDAR-identified sinkholes.

Due to these factors, Barren County experiences moderate to high vulnerability to sinkholes. The risk for Barren County’s city is analyzed below.

Cave City has 312 identified sinkholes. Its vulnerability is high.

Glasgow has 47 identified sinkholes. Its vulnerability is moderate.

Park City has 48 identified sinkholes. Its vulnerability is moderate.

Landslide Susceptibility

During Kentucky’s 2018 Hazard Mitigation Plan update, Kentucky Geological Survey (KGS) developed a landslide susceptibility map for the state in order to show which areas have greater landslide risk due to slope and geology. Using the KGS data, BRADD staff created a landslide susceptibility dashboard for our 10-counties. Click on the button below to access the BRADD Landslide Dashboard.

In Barren County, the overall probability of landslides is low to moderate and highly localized. Most of the county’s terrain is gently rolling, but steeper stream valleys, road cuts, fill slopes, and embankments can become unstable—especially after prolonged or intense rainfall, rapid freeze–thaw cycles, or construction that changes drainage or slope geometry. Susceptibility increases on clay-rich soils and along incised creek corridors where banks are undercut. As with much of south-central Kentucky, landslide occurrence tends to be episodic: quiet for long periods, then clustered following major storms or extended wet seasons.

Barren County: 3 events/30 years = .1 landslide events per year or 10% chance of a landslide event happening annually.

During Kentucky’s 2018 Hazard Mitigation Plan update, Kentucky Geological Survey (KGS) developed a landslide susceptibility map for the state in order to show which areas have greater landslide risk due to slope and geology. Using the KGS data, BRADD staff created a landslide susceptibility dashboard for our 10-counties. Click on the button below to access the BRADD Landslide Dashboard.

Human-made structures are directly affected by landslides. Any structures such as buildings, roads, bridges, street lighting, and power lines can be completely destroyed if in the direct life of the landslide.

Any roads or other transportation systems that are in the path of a landslide will be directly affected. Roads can either be covered by the debris or wiped completely away. Power lines and telecommunication networks would also be directly affected. Along with roads, telephone poles and towers can be damaged and ruined during the event of a landslide.

A landslide, itself, involves natural materials. The drastic displacement of earth, trees, and debris can cause persistent problems such as continued erosion. Landslides can carry contaminated materials into streams and other water bodies, directly affect wildlife by destroying wildlife habitats such as wooded areas, streams, and ponds. This can affect the ecosystem and all living things within it.

People

The vulnerability of a landslide do not affect one section of the population more than another. Anyone living in an area at high risk of a landslide will be affected. Landslides can occur spontaneously and randomly.

Economy

Economic costs associated with landslides are due to replacement costs for any property damaged. If transportation and telecommunication networks are damaged or destroyed, it may lead to business closures for a brief time.

There is limited evidence connecting climate change to an increase in landslides; however, it is theorized that more intense rainfall, rain-on-snow events, mean warming, permafrost thaw, glacier retreat, and coastal erosion can lead to rockface instability and decreased slope (IPCC 2022). There has been an increase in landslides in certain areas of the world and it is expected that there will be an increase in frequency in northwestern North America. Studies make these projections based on increasing rainfall intensity and frequency, so it is possible that the BRADD region may see minor impacts from these in the form of slumps and low-grade slope failure. Kentucky’s landslides mostly occur in Eastern Kentucky, so the BRADD region should not be significantly impacted.

• Potential impacts include:
• Infrastructure damage
• Ecosystem damage
• Loss of life
• Economic loss

Vulnerability concentrates where people and infrastructure intersect steep or engineered slopes: hillside homes, driveways, and outbuildings; roads and bridges on or beneath cut-and-fill sections; and utilities (water, sewer, gas, fiber) buried in or crossing unstable ground. Even small slope failures can close rural roads, isolate residences, damage culverts, and disrupt emergency response. Natural systems are affected through streambank failures, sedimentation, and habitat disturbance. Social impacts fall hardest on households with limited resources for slope stabilization and on areas with few alternate routes.

Since 1991, KGS has recorded 3 landslides in Barren County. This averages to .1 landslide events per year.

Because of these factors, Barren County experiences low vulnerability to landslide events. The risk for Barren County’s cities is analyzed below.

The City of Cave City has had no historic occurrence of landslide events. Its vulnerability is low.

The City of Glasgow has had one historic occurrence of landslide events. Its vulnerability is medium.

The City of Park City has had no historic occurrences of landslide events. Its vulnerability is low.

In addition to the current COVID-19 Pandemic, the Kentucky Cabinet for Health and Family Service explains that there have been four other pandemics in United States in the last 100 years: the 1918-1919 Spanish Flu, the 1956-1958 Asian Flu, the 1968-1969 Hong Kong Flu, and the 2009 Novel H1N1. Combined, these four pandemics have claimed thousands of lives in the Commonwealth, hundreds of thousands in the United States, and millions worldwide.

Spanish Influenza 1918-1919: Historical examples of pandemic demonstrate that while a pandemic may be devastating to a community from a life safety and economic standpoint, the threat was often downplayed and ignored. The 1918 Spanish Influenza pandemic was initially disregarded as having a significant impact because influenza was thought of as a minor illness that incapacitated the sick for a relatively short period of time before they eventually recovered. However, as the Spanish Influenza rose to pandemic level, it redefined the public’s perception of the virus. A historian at the time noted that at a military encampment in southern Ohio, soldiers would arrive healthy and within twenty-four hours would be dead from the flu. The virus spread globally along trade routes and shipping lines. Residents of North American, Europe, Africa, Asia, Brazil, and the South Pacific were particularly affected by the illness, which in-total infected 1/5 of the global population. In contrast to the majority of flu strains, the Spanish Influenza primarily affected young, healthy adults between the ages of 20 and 40. The mortality rate was 2.5%, an astounding figure given that flu outbreaks typically have a rate of 0.1%. By the end of the pandemic, the virus had claimed 20 million lives worldwide and 675,000 in the United States.

Asian Flu 1956-1958: The New York Times first broke the news of the Asian Flu in 1957 when they published a story of a flu virus that had infected 250,000 in Hong Kong. Months after this story was published, the disease had spread to the United States. Unlike Spanish Influenza, the Asian Flu was most commonly reported in the vulnerable populations, such as the elderly and individuals with heart and lung conditions. People with rheumatic heart disease and women in their third trimester of pregnancy were uniquely impacted. Infection for this pandemic came in two parts—the first in the late summer of 1957 and the second in the winter of 1958. The death toll for the Asian Flu widely varies, with sources reporting between 1 and 4 million deaths worldwide and approximately 69,800 in the United States.

Hong Kong Flu 1968-1969: The Hong Kong Flu is the mildest of all pandemics of the 20th century, a fact that is often explained by its similarity to the Asian Flu which increased immunity to the 1968 strain and the fact that it hit the United States in late December when most students were on break, reducing opportunities for spread. As with the Asian Flu, the vulnerable populations, particularly the elderly, were most at risk. By the end of the pandemic in 1969, it had claimed 33,800 lives in the US.

H1N1 2009-2010: This pandemic first appeared in the United States in the spring of 2009. By June, H1N1 had infected 18,000 people in the US. The virus primarily affected the populations most typically affected by the flu: children and infants, pregnant women, the elderly, and individuals with prior-existing health conditions. Due to advancements in medical research and technology, the overall impact of the pandemic was curbed. A vaccine was introduced in the fall of 2009. Approximately 80 million people were vaccinated worldwide. By the time the pandemic was declared over in the spring of 2010, between 43-89 million people had been infected and between 8,870 and 18,300 people had died.

COVID-19 2020-2023: The most recent pandemic first appeared in the United States in the spring of 2020. By July 2020, COVID-19 had infected over 200,000 people worldwide. The virus initially primarily affected the elderly, and individuals with prior-existing health conditions, however as spread increased so did the populations at-risk. A vaccine was approved for use against the virus in December of 2020, and in May of 2023 the World Health Organization declared an end to the public health emergency of international concern.

The probability of another pandemic is moderate to high due to global mobility, zoonotic spillover risk, and pathogen evolution, even as surveillance and vaccination moderate some risk. For Barren County, this translates to ongoing planning assumptions and readiness for periodic surges.

Infrastructure could be impacted due to lack of repair and upkeep if pandemic is extensive and lengthy; Utility lines and repairs would take longer to repair due to manpower lost.

Potential increased loss of agricultural assets (crop & livestock) due to loss of manpower to harvest crop; fewer livestock and crop markets due to restriction of crowds which prevent spread of pandemic disease;

People

Farmers-pandemic could affect crop production & yield since they could not seed or harvest; General populace -would be impacted due to both physical and psychological impacts of disease; Possible school closures would aid in disrupting spread of disease; Vulnerable populations may experience more impacts due to synergistic effects of pandemic symptomology. Additionally, the county could expirence increased emergency clinical care visits, more hospitalization (upwards 1-4% symptomatic patients will require hospitalization) leading to severe and overwhelming impacts on healthcare and public health system; workforce absences leading to minimal patient care

Economy

Pandemic can cause business slowdown or even recession; decreased food and merchandise shipped throughout area would increase cost; loss of buyers and sellers due to potential risk of contagion. Increased staff absences (upwards 50% workforce may require time off over entire period of pandemic).

The 2016 Global Risk Report published by the World Economic Forum has proposed that climate change could be a causal factor in future pandemics. This finding is further explored in a 2016 report produced by Johns Hopkins University’s School of Advanced International Studies, Pandemics in a Changing Climate – Evolving Risk & Global Response. The report explains that vector ecology indicates the potential for climate change to create the conditions for future pandemics. Changes in temperature, precipitation, and pH levels due to climate change will impact the quantity and quality of ecological services, such as food, water, and soil. Ecosystem shifts can impact the migratory patterns, habitats, population, and survivability of certain animal and insect populations. Such changes may increase human-animal or human-insect contact, increasing the likelihood of transmission. For example, as hot summer months extend tick and mosquito populations, both culprits in transmission of epidemic-causing viruses, can survive longer and have more opportunities to infect humans. Climate change may have more direct impacts on humans by making certain populations, particularly in developing countries, more susceptible to illness by creating food and water security crises.

Barren County’s vulnerability is countywide and driven by: (1) population exposure in schools, workplaces, and congregate settings; (2) health-system capacity (surge staffing, ICU beds, supply chains); (3) critical-infrastructure staffing (utilities, EMS); and (4) social factors (older adults, chronic illness, low-income or uninsured residents). Regional COVID-19 experience—hospital surges in nearby Bowling Green/Glasgow and countywide school disruptions—shows that even if local case counts ebb and flow, consequences touch every sector.

Barren County is relatively more vulnerable due to its population centers, connectivity, and local health facilities. The Glasgow area’s hospitals and clinics would likely absorb significant caseloads, but may become stressed during peaks. The movement of people in and out of the county, business centers, and congregate settings (schools, workplaces) increases exposure potential.

Location: Severe storms are treated as a region-wide, non-spatial hazard; no jurisdiction is inherently more likely to be struck, though more built-up places see greater damages. For Allen, that means exposure countywide, with higher potential property impacts in and around Scottsville.

Extent: The profile evaluates hail, wind, and lightning (tornadoes are handled separately). Severe thunderstorms are defined by hail ≥ ¾”, wind gusts ≥ 50 knots (57.5 mph), or a tornado. Straight-line winds in extreme cases can exceed 100 mph.

Past events / occurrence: Allen County has recorded 105 severe storm events over 21 years (≈ 5 events annually).

The BRADD region’s probability of severe storms is rated High  based on annual frequency; this regional rating applies to Barren County as well.

• Barren County: 152 severe storm events/21 years = 7.23 wind events annually

Vehicles, roofs, windows, utilities, roads, and culverts are vulnerable; straight-line winds  can down trees/power lines, causing outages from hours to weeks.

Increased stormwater runoff, localized flooding, tree loss, and impacts to fish/wildlife;  crop and livestock damage are common consequences.

Outdoor workers and people without timely warnings (boaters, campers, farmers, construction crews) are especially susceptible; damages can trigger brief  business closures where transport/telecom are affected.

Research indicates climate change is increasing the number of days with sufficient CAPE and vertical wind shear to produce severe storms (hail, damaging wind, and tornadoes), implying more frequent environments favorable to severe weather in the region.

Barren County has experienced 152 severe storm events over 21 years (~7.23 per year) and, because of these factors, Barren County—and its cities of Cave City, Glasgow, and Park City—experience high vulnerability to severe storms.

Barren County has experienced 152 severe storm events/21 years = 7.23 wind events annually.

Because of these factors, Barren County experiences high vulnerability to severe storms. Cave City, Glasgow, and Park City reflect Barren County’s overall history of severe storms, and therefore experience high vulnerability as well.

Because terrorism is intentional and adversarial, traditional frequency-based risk assessments are not sufficient for evaluating potential impacts. Unlike natural hazards, terrorism cannot be forecasted or modeled using historical trends alone. Effective assessment must incorporate intelligence inputs, threat actor capabilities, and scenario planning to understand possible modes of attack and associated vulnerabilities.

At present, there is limited differentiation between types of terrorism that may affect the region. Distinguishing between domestic and international threats, as well as between physical, cyber, or hybrid forms of terrorism, can help clarify risk pathways and improve mitigation strategies. The region’s profile would also benefit from identifying and assessing critical infrastructure and “soft targets” that may be more susceptible to intentional acts, such as public gathering venues, utilities, schools, and government facilities.

Because terrorism is intentional and adversarial, you cannot rely solely on historical frequency to derive probability. Many risk models for terrorism must incorporate intelligence assessments, threat actor capabilities, and scenario planning.

While the page references terrorism conceptually, it does not currently include coordination protocols with law enforcement, fusion centers, or homeland security partners that monitor and share threat intelligence. Strengthening interagency coordination—particularly with local emergency management, police, and state agencies—would provide a more credible understanding of regional exposure and response capability.

Cascading and secondary effects of terrorism events, such as public panic, misinformation, economic disruption, and strain on emergency and health systems, are also important considerations. The social and psychological impacts of terrorism can be significant even when physical damage is limited, underscoring the need to plan for behavioral health support and long-term community recovery.

Additionally, the region’s profile does not currently evaluate local preparedness measures such as continuity of operations plans (COOP), security assessments, or mass-casualty response capacity, which are key indicators of resilience. Future updates should also consider emerging risks, such as cyber-physical attacks on utilities and critical networks, and how these may intersect with traditional forms of terrorism.

Finally, it is important to acknowledge both the limitations and sensitivities of terrorism-related data. Some information—such as specific target locations or threat intelligence—cannot be publicly shared due to security concerns. Nonetheless, transparency in describing the general methods, assumptions, and partnerships used to assess terrorism risk would enhance credibility while maintaining confidentiality.

Terrorism can destroy or damage buildings and critical lifelines (power, water/wastewater, transportation, and communications), with impacts dictated by the attack method and proximity to critical nodes.

Acts such as agro-terrorism or hazardous-materials release can contaminate soil, water, or wildlife habitat, and BRADD explicitly notes potential destruction of natural resources under certain attack types.

Intentional acts are designed to cause casualties, widespread fear, and economic disruption; BRADD highlights life-safety risks, psychological effects, and local economic shocks due to reduced participation and interrupted operations.

Climate stressors (e.g., pressures on marginalized populations, aging infrastructure, and periods of civil unrest) may elevate susceptibility to terrorism-related activities, including threats to infrastructure, property, and cyber/economic systems, even though overall climate-driven terrorism risk for the region remains low. 

Barren County’s vulnerability concentrates where people and critical functions intersect—government and school campuses, utilities, healthcare sites, congregate venues, and commercial hubs—along with cyber-dependent operations. For planning purposes, Barren County should assume countywide exposure with higher consequence potential at critical-infrastructure and high-occupancy sites.

Barren County’s position along major highway routes and proximity to Interstate 65 increases exposure to transient traffic and through-movement, which can elevate risk of intentional acts involving transportation or public venues. The City of Glasgow contains critical infrastructure including medical facilities, schools, and local government buildings. Large public gatherings, such as community events and festivals, may also present soft targets. The county’s diversified economy and centralized emergency management coordination support moderate resilience but warrant continued vigilance and interagency planning.

Barren severity in Allen County can range from brief, weak EF-0/EF-1 touchdowns to rare, high-end EF-3+ events capable of destroying well-built structures; the EF categories and related wind speeds set the bounds for plausible damage.

From 2000–2025, Barren County experienced 7 tornadoes (≈ 28% chance of at least one tornado in a given year). Since 1950, tornadoes that touched down in the county have caused 51 injuries and 3 deaths. Regional context includes the December 10–11, 2021 outbreak, with multiple long-track and high-end events affecting neighboring counties.

Tornado exposure is countywide and non-spatial at planning scale; consequences concentrate where people and assets are located (e.g., Scottsville, major corridors, and higher-occupancy or vulnerable housing areas such as mobile homes).

The tornado began east of I-65 in Edmonson County where the Emergency Manager informed the National Weather Service of tree damage in this area. The tornado strengthened quickly and crossed into Barren County following along US 31W through Park City.

In Park City the damage was rated EF1 with many barns encountering roof loss or complete failure, along with many trees found snapped or uprooted. The tornado continued along US 31W into Cave City where it strengthened to EF2 (130mph). The damage sustained here was major loss of roof structures to motels, hotels, and restaurants, highway signs destroyed, metal light poles collapsed, and major destruction to a trailer park.

From here, the tornado continued along US 31W into Hart County through downtown Horse Cave. Here the damage was rated EF1 with small roof damage, large limbs being snapped, and walls blown out of some older tobacco warehouses. Once reaching Dawson Knob the tornado weakened and likely converged with the supercell moving into Hardyville. Due to the knob terrain in this area, there are spots of weaker damage found, however on the down-sloping side, the tornado strengthened rapidly. This pattern was found twice in this damage path.

NWS Storm Survey Teams found EF-1 tornado across northern Barren County. The damage began along the 2100 block of Carden Road which included a 80 x 100ft Amish built barn which was destroyed. Damage from the barn was thrown 400 yards to the northeast and east. Along Carden Road, trees were snapped, topped and twisted. There was sporadic roof damage to homes including gutters, siding, and shingle damage. Winds in this area were 90 to 95 mph with a width of 75 yards.

Along Highway 90, the tornado increased to a width of 125 yards with many barns incurring structural roof damage. At the Legacy Dairy Farms, an older 40 x 60ft barn was destroyed and there was sidewall damage to a large grain silo along Goodnight-Hiseville Road. Winds in this area were 85 mph.

Along Route 740, the tornado paralleled the road and the width increased to 150 yards. In Hiseville, there was barn damage with half a dozen barns sustaining significant structural damage. A 50ft diameter well-built grain silo was twisted and knocked over, and numerous trees were twisted, snapped, or uprooted. Most of the trees were facing north, northeast, east, and a few in the southeasterly direction. At the Hiseville Cemetery, modern and older gravestones were knocked over and cedar trees were knocked over and topped.

BRADD rates overall regional probability for tornadoes as high, based on historical frequency, wind-zone classification, and FEMA definitions. Barren County’s recent history (7 events/21 years) supports an ongoing, recurring likelihood at the county scale.

Tornadoes can damage or destroy homes and businesses, topple transmission and distribution lines, block roads and bridges with debris, and interrupt power, communications, and water/wastewater services.

Tornadoes can fell trees, damage crops and farm structures, degrade habitats, and increase fire risk where dead or downed timber is not removed.

Tornadoes can cause deaths and injuries, trigger temporary but significant economic disruption, and reduce local revenue and productivity during recovery.

While attribution is complex at tornado scale, research indicates fewer “one-tornado” days and more multi-tornado cluster days, linked to increases in days with high CAPE and sufficient vertical wind shear; this implies more days conducive to severe storms—a planning consideration for warning, sheltering, and surge response.

Barren County’s tornado vulnerability is assessed as moderate, driven by its historical tornado activity, documented damages and casualties since 1950, and the presence of several census tracts with high concentrations of mobile homes, which are more susceptible to wind damage and offer limited sheltering options. Among its cities, Glasgow faces the greatest risk due to its larger population and older housing stock, Cave City has a moderate vulnerability linked to its location near major transportation routes and areas of mixed development, and Park City has a low to moderate vulnerability given its smaller size and rural setting, though exposure remains possible during regional outbreaks.

Between 2000 and 2025, Barren County has experienced 7 tornadoes/25years =28% chance of a tornado happening in a given year.

Since 1950, tornadoes that touched down in Barren County have caused 51 injuries and 3 deaths.

Barren County contains two census tracts wherein at least 25% of all housing units are mobile homes.

Because of these factors, Barren County experiences moderate vulnerability to tornadoes. Cave City, Glasgow, and Park City reflect Barren County’s overall history of tornado events, and therefore experience moderate vulnerability as well.

Extent is characterized by the number and severity of winter storm, heavy snow, and ice storm events (including federally declared disasters). The BRADD region recorded multiple FEMA winter-storm disaster declarations between 2000 and 2020 and 66 reportable winter storm events in that period.

From 2000–2020, Barren County experienced 9 severe winter storms.

Exposure is countywide (non-spatial at the planning scale), with impacts most evident where people, infrastructure, and travel corridors concentrate (e.g., Cave City, Glasgow, Park City, and major roads)

Regionally, BRADD rates future winter-storm probability as moderate. Barren County’s observed history (9 events over 2000–2025) supports a similar, recurring likelihood at the county scale, with year-to-year variability driven by storm track and ice versus snow dominance.

Winter storms can damage roofs under snow load, break limbs that fall onto buildings and vehicles, down power lines, and block roads and bridges with snow/ice and debris; even modest icing can disrupt utilities and emergency response.

Extended snow/ice cover can alter habitats and timing of species behavior; out-of-season events can injure or kill vegetation and damage crops and trees.

Hazardous travel, power outages, and isolation elevate risks for households—especially older adults or people with medical needs—while business closures and school disruptions impose community-wide costs.

Changing winter characteristics: warmer winters overall, fewer heavy snowmelt events, more precipitation falling as rain/ice in the Southeast, a lengthening freeze-free season, and related economic and infrastructure stresses—factors that may shift Allen County’s winter risk mix toward icing events and infrastructure sensitivity even as extreme cold snaps still occur.

The table below displays ice storm, winter storms, and heavy snow events that were reported to NOAA and NWS between 2000 and 2020. While not each of these events received a FEMA declaration, each showed clear characteristics of a severe winter storm.

Between 2000 and 2020, NOAA and NWS reported 20 severe winter storms in Barren County.

On average, Barren County has experienced 9 winter storm events/21 years. This equates to a 0.43% chance of a winter storm event in Barren County annually.

In 2010, icy road conditions resulting from a winter storm claimed the life of a Barren County driver.

Because of these factors, Barren County experiences moderate vulnerability to winter storm events. Cave City, Glasgow, and Park City reflect Barren County’s overall history of winter storms, and therefore experience moderate vulnerability as well.