US Bridges

FAP 77 over N. Fk. Forked Deer River

Fair

Gibson County, Tennessee · 1.1 Mi.E.Of Trenton · Structure no. 27SR0770013

Built
1984
41 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
316 ft
5 main spans
Daily traffic
4,305
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 77 over N. Fk. Forked Deer River is a prestressed concrete box beam or girders - multiple carrying FAP 77 over N. Fk. Forked Deer River in Gibson County, Tennessee. It was built in 1984, so it is 41 years old, younger 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 4,305 vehicles a day, roughly 6% of them trucks, projected to reach 6,888 by 2042. The structure is 316 ft (96.3 m) long and 46 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

Location

Open in Google Maps
CarriesFAP 77
CrossesN. Fk. Forked Deer River
Location1.1 Mi.E.Of Trenton
RouteState Highway 77
CountyGibson County
StateTennessee
Coordinates35.98025, -88.92683
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length316 ft (96.3 m)
Longest span67 ft (20.4 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,305 (2021)
Projected traffic6,888 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 77 over N. Fk. Forked Deer River built?

It was built in 1984, making it 41 years old in 2025.

What condition is FAP 77 over N. Fk. Forked Deer River 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 2023.

How much traffic does FAP 77 over N. Fk. Forked Deer River carry?

About 4,305 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 77 over N. Fk. Forked Deer River?

The structure is 316 ft (96.3 m) long with a longest span of 67 ft (20.4 m) and a deck 46 ft wide.

Who owns FAP 77 over N. Fk. Forked Deer River?

It is owned by the State Highway Agency.