Sinkholes in Cumberland County, TN | Tennessee Sinkholes

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Sinkholes in Cumberland County, TN | Tennessee Sinkholes

Cumberland County, TN Sinkhole Map

Sinkhole Count: 54

Cumberland County, TN FAQs

Cumberland County, TN is located in Middle Tennessee and has a rich history that spans back to prehistoric times. Here’s an overview of the history of Cumberland County:

Early History

– inhabited by Native American tribes, including the Cherokee, Creek, and Shawnee. These tribes utilized the land for hunting, fishing, and farming.

late 1700s

  • European settlers began arriving in the area in the late 1700s
  • Cumberland County was established in 1856 from parts of Bledsoe, Putnam, White, and Rhea Counties
  • was named after the Cumberland River, which runs through the region.

Civil War Era

  • was divided between Union and Confederate sympathizers-
  • experienced several skirmishes and raids during the war, and many of its residents served in both Union and Confederate forces.
  • Cumberland County’s early economy was primarily based on agriculture, with farmers cultivating crops such as corn, wheat, and tobacco, and raising livestock.
  • was also known for its coal mining industry, with several coal mines operating in the late 19th and early 20th centuries.

late 1800s and early 1900s

  • Cumberland County experienced growth and development with the arrival of railroads, which helped to boost the local economy and connect the county to other regions
  • saw the establishment of schools, churches, and businesses during this period.

20th century

  • Cumberland County became known for its natural beauty, with the Cumberland Plateau offering scenic vistas, waterfalls, caves, and outdoor recreational opportunities
  • developed into a popular tourist destination, attracting visitors with attractions such as Cumberland Mountain State Park, Crossville – the “Golf Capital of Tennessee,” and the Cumberland County Playhouse, a renowned regional theater.

What are its notable landmarks in Cumberland County, TN?

Cumberland Mountain State Park

  • one of the most popular landmarks in Cumberland County, spanning over 1,700 acres and offering a variety of recreational activities such as hiking, camping, fishing, boating, and golfing
  • features a lake, picnic areas, and a swimming pool, making it a favorite spot for outdoor enthusiasts.

Cumberland County Playhouse

  • one of the largest professional theaters in rural America
  • renowned regional theater that attracts visitors from near and far
  • produces a wide range of productions throughout the year, including musicals, plays, and concerts, and has been entertaining audiences since 1965

Ozone Falls

  • located in Cumberland County
  • popular natural landmark for outdoor enthusiasts and nature lovers 
  • the waterfall drops approximately 110 feet and is accessible via a short hike, offering breathtaking views and photo opportunities

Crossville Depot

  • historic landmark in the city of Crossville, which is the county seat of Cumberland County 
  • built in the early 1900s, the depot is a beautiful example of classic railroad architecture and is now home to the Crossville-Cumberland County Visitors Center

Bear Trace at Cumberland Mountain

  • his championship golf course, designed by renowned golfer Jack Nicklaus
  • located within Cumberland Mountain State Park
  • known for its challenging layout and stunning mountain views
  • a popular destination for golfers of all skill levels.

Chestnut Hill Winery

  • This local winery in Crossville is a popular destination for wine lovers, offering tastings, tours, and a variety of locally produced wines
  • located in a picturesque setting and also hosts events and live music

These are just a few of the notable landmarks in Cumberland County, TN. The county is known for its natural beauty, recreational opportunities, and cultural attractions, making it a unique and attractive destination for visitors and residents alike.

Cumberland County, TN offers a wide range of recreational activities for residents and visitors alike. Here are some popular recreational activities available in Cumberland County:

  1. Hiking and Outdoor Exploration: Cumberland County is known for its beautiful natural scenery, including mountains, forests, and parks, which offer excellent opportunities for hiking, nature walks, and outdoor exploration. Trails such as the Cumberland Trail, Obed Wild and Scenic River, and the Big South Fork National River and Recreation Area offer a variety of scenic hikes for all skill levels.
  2. Camping and RVing: There are several campgrounds and RV parks in Cumberland County that offer opportunities for camping, picnicking, and enjoying the great outdoors. Cumberland Mountain State Park, which spans over 1,700 acres, offers camping facilities along with other recreational activities such as fishing, boating, and golfing.
  3. Fishing and Boating: Cumberland County has numerous lakes, rivers, and streams that provide opportunities for fishing and boating. Popular fishing spots include Lake Tansi, Lake St. George, and Daddy’s Creek, which are stocked with various fish species. Boating, kayaking, and canoeing are also popular activities in the area, with many lakes and rivers offering boat ramps and access points.
  4. Golfing: Cumberland County is known for its golf courses, with several public and private golf courses available for avid golfers. Bear Trace at Cumberland Mountain, a championship golf course designed by Jack Nicklaus, is located within Cumberland Mountain State Park and is a popular destination for golf enthusiasts.
  5. Recreation at Crossville Community Complex: The Crossville Community Complex is a recreational facility in Cumberland County that offers a wide range of activities, including indoor and outdoor pools, fitness classes, sports fields, walking trails, and playgrounds. The complex hosts various recreational programs and events throughout the year.
  6. Wineries and Breweries: Cumberland County is home to several wineries and breweries that offer tastings, tours, and events. Chestnut Hill Winery, Stonehaus Winery, and the Cumberland County Playhouse Wine and Spirits are popular destinations for wine and beer lovers.

Hunting and Wildlife Watching: Cumberland County has abundant wildlife and hunting opportunities, including deer, turkey, and small game hunting. The area also offers opportunities for wildlife watching, with several parks and nature areas providing opportunities to observe native wildlife in their natural habitats.

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Sinkholes in Cumberland County, TN

A massive 13.31 km² depression in Tennessee’s Cumberland Plateau is North America’s largest sinkhole. It’s 140 feet deep and holds 37.7 million cubic meters of eroded limestone. Lidar surveys from 2013 confirmed it’s part of the Sequatchie Valley Anticline, a geological fold from 250 million years ago.

The sinkhole was formed by water dissolving Mississippian-era limestone bedrock. Now, underground streams drain through Mill Cave into the Sequatchie River. This maintains dynamic erosion patterns. Studies show these processes have sped up over the last 20 years.

While White County’s Big Sink is deeper at 261 feet, this Cumberland Plateau feature is wider. It’s 35.7 km around its perimeter. The anticlinal structure guides groundwater flow, creating unique karst formations in Tennessee’s eastern highlands.

Scientists use satellite imagery and cave mapping to monitor subsidence rates. These tools show how the Sequatchie Valley Anticline shapes underground drainage systems. Their research helps predict future landscape changes in active sinkhole zones.

Recent & Notable Sinkhole Incidents / Case Studies

Geological monitoring in Cumberland County TN has shown changes in sinkhole-related flooding. No big collapses have happened in Grassy Cove, but there are signs of karst hydrology risks. These risks affect drainage and farming.

Documented Sinkhole Activity (2004-Present)

Local farmers noticed water gathering in Grassy Cove fields in 2007. A 2013 study by TDEC found links between Grassy Cove Creek and the Sequatchie River. This explained why water levels changed quickly.

Wolf Cove in Franklin County is a reminder of the dangers. Its 242-foot deep sinkhole shows how fast changes can happen. Cumberland County is watching groundwater closely.

Grassy Cove Flooding Patterns & Drainage Impacts

Heavy rain turns Grassy Cove’s farmlands into lakes for 3-7 days. Records go back to 1887, when a flood lasted 11 days. Today, we see:

  • Delayed planting seasons due to saturated soils
  • Increased fertilizer runoff into karst aquifers
  • Roadway erosion along critical drainage paths

The 2020 Hurricane Sally event showed things are getting worse. Floodwaters stayed longer than in 1994. USGS says it’s because of erosion in limestone bedrock.

Risk Factors & What Homeowners Should Do

Cumberland County TN faces special challenges because of karst subsidence. There are over 21,365 sinkholes in Tennessee that are more than three meters deep. Grassy Cove, with its farming and soft bedrock, needs extra care.

Ground-penetrating radar tests by experts are key for preventing sinkholes. These tests cost $500-$1,500, based on the property size. Regular checks on drainage systems are also important. Clear gutters and working French drains help keep water away from the ground.

Checking foundation cracks monthly is part of monitoring. The Tennessee Geological Survey says to get a pro if cracks are over 1/4 inch. Well owners should check water clarity every three months. A sudden change in water clarity might mean a sinkhole is coming.

Getting insurance that covers sinkholes is vital in risky areas. Most home insurance doesn’t cover sinkhole damage under the house. But, 42% of homes in Cumberland County now have extra coverage for earth movement.

If you see the ground sinking or buildings shifting, call the Cumberland County Emergency Management. Quick action can stop big problems. The Tennessee Geological Survey has maps and tips on their website.

FAQ

What makes Grassy Cove sinkhole geologically significant in Cumberland County?

Grassy Cove is the biggest sinkhole in North America, covering 13.31 km². It’s 140 feet deep and has a volume of 37.7 million cubic meters. Formed 250 million years ago, it’s part of the Sequatchie Valley Anticline.Water flows through Mill Cave to the Sequatchie River. Lidar surveys show its depth and size. This makes it unique.

How does Grassy Cove compare to other Tennessee sinkholes?

Grassy Cove is huge, but White County’s Big Sink is deeper. Franklin County’s Wolf Cove is similar in risk. Tennessee has many sinkholes, with 21,365+ over 3 meters deep.

What evidence confirms Grassy Cove’s underground water connections?

Studies in 2013 showed Grassy Cove Creek connects to the Sequatchie River. Water flows fast during storms, flooding the area. This has been happening for over a century.

What sinkhole risks should Cumberland County homeowners monitor?

Homeowners should watch for four main risks. These include using radar, keeping stormwater systems clean, checking foundations, and getting insurance. There have been no big collapses in 20 years, but flooding is a concern.

What early warning signs indicate potentially sinkhole activity?

Look for sudden changes in well water, ground sinking, stressed plants, and doors not fitting right. These signs have been noted by farmers and scientists alike. They show the area’s vulnerability.
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