US Bridges

County Road 2688 over Wilbur Bluff

Fair

Carter County, Tennessee · Wilbur Dam · Structure no. 10026880001

Built
1942
83 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
170 ft
3 main spans
Daily traffic
849
2021 count
Owner
Federal
Tennessee Valley Authority

About this bridge

County Road 2688 over Wilbur Bluff is a concrete tee beam carrying County Road 2688 over Wilbur Bluff in Carter County, Tennessee. It was built in 1942, so it is 83 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 849 vehicles a day, roughly 2% of them trucks, projected to reach 1,000 by 2041. The structure is 170 ft (51.8 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCounty Road 2688
CrossesWilbur Bluff
LocationWilbur Dam
RouteCounty Highway 2688
CountyCarter County
StateTennessee
Coordinates36.34, -82.12833
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.8 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadH 20
Structure length170 ft (51.8 m)
Longest span34 ft (10.4 m)
Deck width25 ft (7.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic849 (2021)
Projected traffic1,000 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTennessee Valley Authority
Maintained byTennessee Valley Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 2688 over Wilbur Bluff built?

It was built in 1942, making it 83 years old in 2025.

What condition is County Road 2688 over Wilbur Bluff in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does County Road 2688 over Wilbur Bluff carry?

About 849 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is County Road 2688 over Wilbur Bluff?

The structure is 170 ft (51.8 m) long with a longest span of 34 ft (10.4 m) and a deck 25 ft wide.

Who owns County Road 2688 over Wilbur Bluff?

It is owned by the Tennessee Valley Authority.