US Bridges

Nfa A648 (sa 2731) over N Fork of Forked Deer

Good

Gibson County, Tennessee · 3.5 MI SW JCT SR43&SR76 · Structure no. 270A6480001

Built
1995
30 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
90
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A648 (sa 2731) over N Fork of Forked Deer is a concrete continuous culvert carrying Nfa A648 (sa 2731) over N Fork of Forked Deer in Gibson County, Tennessee. It was built in 1995, so it is 30 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 90 vehicles a day, roughly 2% of them trucks, projected to reach 144 by 2042. The structure is 33 ft (10.1 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNfa A648 (sa 2731)
CrossesN Fork of Forked Deer
Location3.5 MI SW JCT SR43&SR76
RouteCounty Highway 648
Coordinates35.86825, -88.77547
Functional classUrban 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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span15 ft (4.6 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2020)
Projected traffic144 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A648 (sa 2731) over N Fork of Forked Deer built?

It was built in 1995, making it 30 years old in 2025.

What condition is Nfa A648 (sa 2731) over N Fork of Forked Deer 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 July 2023.

How much traffic does Nfa A648 (sa 2731) over N Fork of Forked Deer carry?

About 90 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A648 (sa 2731) over N Fork of Forked Deer?

The structure is 33 ft (10.1 m) long with a longest span of 15 ft (4.6 m) and a deck 32 ft wide.

Who owns Nfa A648 (sa 2731) over N Fork of Forked Deer?

It is owned by the County Highway Agency.