US Bridges

Nfa A071 over Overflow

Good

Fentress County, Tennessee · 7.6 Mi.Ne.Of SR028 · Structure no. 250A0710013

Built
2001
24 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
58 ft
4 main spans
Daily traffic
290
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A071 over Overflow is a concrete continuous culvert carrying Nfa A071 over Overflow in Fentress County, Tennessee. It was built in 2001, so it is 24 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 290 vehicles a day, roughly 3% of them trucks, projected to reach 464 by 2041. The structure is 58 ft (17.8 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A071
CrossesOverflow
Location7.6 Mi.Ne.Of SR028
RouteCounty Highway 71
Coordinates36.53295, -84.94288
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length58 ft (17.8 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.4 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2020)
Projected traffic464 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$80,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A071 over Overflow built?

It was built in 2001, making it 24 years old in 2025.

What condition is Nfa A071 over Overflow in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Nfa A071 over Overflow carry?

About 290 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Nfa A071 over Overflow?

The structure is 58 ft (17.8 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns Nfa A071 over Overflow?

It is owned by the County Highway Agency.