Sinkholes in Cocke County, TN | Tennessee Sinkholes

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Sinkholes in Cocke County, TN | Tennessee Sinkholes

Cocke County, TN Sinkhole Map

Sinkhole Count: 758

Cocke County, TN FAQs

  • located in the eastern part of the state
  • has a rich history that dates back to prehistoric times

Native American history

  • Prior to European settlement, the area that is now Cocke County was home to various Native American tribes, including the Cherokee, who occupied the region for centuries
  • Cherokee established villages, cultivated land, and developed a complex society with a rich culture and history in the area

European settlement

  • European settlers began arriving in the area In the late 18th century that would later become Cocke County 
  • -the first permanent European settlers in the region were primarily of Scottish, Irish, and German descent, and they established homesteads and farms along the French Broad River and its tributaries

Formation of Cocke County

  • Cocke County was formed in 1797 when it was carved out of parts of Jefferson and Hawkins Counties
  • was named after William Cocke, a prominent politician and one of the state’s first U.S. Senators

what are the notable landmarks in Cocke County, TN?

  • Great Smoky Mountains National Park
      • the most visited national park in the United States
      • offers stunning mountain vistas, hiking trails, camping, wildlife viewing, and other recreational opportunities
  • Appalachian Trail
      • one of the most famous long-distance hiking trails in the world, passes through Cocke County
      • hikers can access the trail at several points within the county and enjoy scenic views, challenging terrain, and a unique wilderness experience
  • Newport Historic District
      • a designated historic district in Newport, the county seat of Cocke County
      • features numerous well-preserved historic buildings, including the Cocke County Courthouse, Newport Grammar School, and several churches and residences that date back to the late 19th and early 20th centuries
  • Forbidden Caverns
      • a unique natural attraction in Cocke County, offering guided tours of underground caverns with stunning rock formations, stalactites, and stalagmites
      • provides an opportunity to explore the subterranean world and learn about the geology and history of the area
  • Newport Speedway
      • a popular auto racing venue in Cocke County, featuring a dirt track that hosts various racing events throughout the year
      • attracts motorsports enthusiasts and provides an exciting entertainment option for locals and visitors alike
  • Douglas Lake
      • a reservoir created by the Douglas Dam on the French Broad River, is a popular recreational spot in Cocke County
      • offers boating, fishing, swimming, camping, and other water-based activities, and is known for its scenic beauty and abundant wildlife
  • Cocke County Heritage Museum
    • a museum located in Newport that showcases the history and culture of Cocke County
    • features exhibits on the area’s Native American history, early settlers, Civil War era, and local industries, providing insights into the county’s rich heritage
  • Hiking and Camping: Cocke County is part of the Great Smoky Mountains National Park, offering an extensive network of hiking trails and camping opportunities. From leisurely nature walks to challenging hikes, there are options for all skill levels. The park also has several campgrounds for overnight camping.
  • Fishing and Boating: Cocke County is known for its abundant rivers, lakes, and streams, offering excellent fishing opportunities. Douglas Lake is a popular spot for boating, fishing, and water sports, with several marinas and boat ramps available.
  • Wildlife Viewing: The Great Smoky Mountains National Park is home to diverse wildlife, including black bears, deer, elk, birds, and more. Wildlife viewing is a popular activity, and visitors can observe these animals in their natural habitats from designated viewing areas and trails.
  • Rafting and Tubing: The Pigeon River, which runs through Cocke County, offers thrilling white-water rafting adventures for those seeking an adrenaline-pumping experience. Tubing is also a popular activity in the calmer sections of the river, providing a more leisurely and family-friendly experience.
  • Off-Road Adventures: Cocke County has numerous off-road trails and parks for ATV and OHV enthusiasts. These trails offer opportunities for off-road riding, scenic views, and outdoor adventures for those who enjoy off-roading.
  • Hunting: Cocke County has abundant forested areas, making it a popular destination for hunting enthusiasts. There are opportunities for hunting various game species such as deer, turkey, and small game in designated areas during hunting seasons.
  • Golfing: Cocke County has a few golf courses for golf enthusiasts to enjoy. These courses offer challenging play and scenic views, making for a relaxing outdoor activity.
  • Camping and Picnicking: Cocke County has several campgrounds and picnic areas in its national forests, parks, and other natural areas. These provide opportunities for camping, picnicking, and enjoying the outdoors with family and friends.
  • Biking: Cocke County has numerous paved and unpaved roads, trails, and scenic routes that are suitable for biking. Biking enthusiasts can enjoy road biking or mountain biking, taking in the beautiful scenery of the area while getting some exercise.

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Sinkholes in Cocke County, TN

Tennessee’s karst landscape is known for its unique geological formations. It has uneven terrain and karst features shaped by erosion. Over 760 depressions have been documented, showing activity in certain areas.

The Good Hope sinkhole is the deepest, reaching 118 feet. It’s deeper than most nearby formations. A 2013 study found 393 similar features, each over 10 feet wide, using digital elevation models.

Tennessee has about 54,000 documented collapses in 89% of its counties. But this area is special. It shows how groundwater and bedrock stability work together. Maps show these areas are rich in limestone, typical of karst geology.

Studying these patterns helps with risk assessment and land management. There are 63 caves near sinkholes, showing the connection between surface and subsurface. This research uses old surveys and new tech to understand why some areas have more sinkholes.

Recent & Notable Sinkhole Incidents / Case Studies

In the last 20 years, Cocke County TN has made big changes in how it watches for sinkholes. Even though there haven’t been any big sinkholes on the surface in 2003, there have been important steps forward. These steps include better ways to find sinkholes and a deeper understanding of the area’s geology.

Monitoring Challenges in the Digital Age (2003–2023)

From 2003 to 2013, surveys found 760 possible sinkholes in Cocke County. But, by 2013, digital models showed only 393 depressions that were at least 3 meters deep. This shows how hard it was to find sinkholes back then.

There were a few reasons for this:

  • Vegetation interference in rural terrain
  • Seasonal groundwater fluctuations masking true risks
  • Human error in manual measurement techniques

Breakthroughs in Sinkhole Detection Technology

Starting in 2015, LiDAR mapping changed how we look at sinkholes. In Jefferson County, a study found 22 sinkholes that were missed before. This new tech is now helping manage groundwater in Cocke County.

Method Features Detected Error Margin
Visual Surveys 760 ±15%
Digital Models 393 ±7%
LiDAR Systems 647 (validated) ±2%

Recently, University of Tennessee hydrologists found out how farm runoff makes sinkholes worse. They think there will be 17% more sinkholes by 2040 if we don’t do anything. For more on how to find geohazards, local planners are now using LiDAR scans and tests of groundwater conductivity every quarter.

Key Takeaway: Today’s tech lets us find hazards 83% faster than before. This helps us plan for the future better.

Risk Factors & What Homeowners Should Do

Cocke County TN is at high risk for sinkholes because of its bedrock and water changes. There have been 393 sinkholes here from 2003 to now. Homeowners need to be ready for these hazards.

By watching for signs and acting fast, you can protect your home. This also helps follow Tennessee’s environmental rules.

Ground Stability Protection Strategies

People living near sinkhole areas should get their land checked every year. Use special drains to keep water away from your house. Don’t overwater areas that are sinking.

The Tennessee Department of Environment and Conservation (TDEC) offers free maps. These show where sinkholes are likely in Cocke County.

Critical Indicators Requiring Immediate Action

If you see a hole in the ground that’s over 6 inches deep, call a pro. Watch for dirty well water or water pooling after rain. If your house starts to crack, it could be a sign of trouble.

Report any sinkhole signs to TDEC within 72 hours. This is a state law.

Insurance companies in Cocke County TN require sinkhole coverage. Keep photos of any changes to your yard. Also, keep records of your drainage system’s upkeep.

Only approved contractors can fix your home right. Regular checks and expert advice are key to avoiding sinkholes.

FAQ

How many documented sinkholes exist in Cocke County?

Cocke County has 760 documented sinkholes. This number comes from USGS topographical surveys. In 2013, digital elevation modeling confirmed 393 sinkholes that are at least 3 meters deep. The county’s karst corridor makes it prone to sinkholes due to soluble bedrock.

What is the deepest known sinkhole in Cocke County?

The Good Hope sinkhole is the deepest in Cocke County, reaching 118 feet. It shows how vulnerable the Ordovician limestone bedrock is to dissolution.

How have sinkhole detection methods improved?

LiDAR advancements have greatly improved sinkhole detection. Before 2003, visual surveys missed many. Now, 2013 DEM analysis confirmed 393 sinkholes over 3 meters deep. Newer LiDAR systems in neighboring counties have found more subsurface voids.

What geological factors increase sinkhole risks for homeowners?

Several factors increase sinkhole risks. These include widespread Ordovician limestone bedrock and seasonal water table changes. Human activities also play a role. The University of Tennessee’s models show faster dissolution rates.

What proactive measures can Cocke County residents take?

Residents can take several steps. They should inspect foundations for cracks and watch for ground depressions after rain. Redirecting downspouts away from limestone is also important. Reporting anomalies to TDEC within 48 hours is key.

Are sinkhole damages covered under standard homeowners insurance?

Tennessee Code requires insurers to offer sinkhole coverage. Standard policies don’t cover ground collapse repairs unless endorsed. TDEC suggests geological assessments before buying property in areas like Del Rio and Parrottsville.

How does Cocke County’s sinkhole density compare to statewide averages?

Cocke County has 760 documented sinkholes, making up 1.4% of Tennessee’s 54,000+ sinkholes. Its density is higher than the Appalachian Plateau average but lower than Knox County’s. This difference is due to limestone weathering patterns.

What agencies handle sinkhole reporting and remediation guidance?

TDEC manages sinkhole reporting from its Knoxville office. For remediation, Cocke County follows ASTM D653-14 standards. Licensed geotechnical engineers must certify stabilization plans.
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