US Bridges

Nfa 860 (sa 2714) over Adams Branch

Fair

Gibson County, Tennessee · 5.0 MI NW JCT SR43&SR77 · Structure no. 27008600003

Built
1984
41 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
91 ft
3 main spans
Daily traffic
1,059
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 860 (sa 2714) over Adams Branch is a prestressed concrete stringer/multi-beam or girder carrying Nfa 860 (sa 2714) over Adams Branch 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 5 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 1,059 vehicles a day, roughly 3% of them trucks, projected to reach 1,694 by 2042. The structure is 91 ft (27.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNfa 860 (sa 2714)
CrossesAdams Branch
Location5.0 MI NW JCT SR43&SR77
RouteCounty Highway 860
CountyGibson County
StateTennessee
Coordinates35.97664, -88.81517
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span33 ft (10.2 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,059 (2021)
Projected traffic1,694 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$718,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 860 (sa 2714) over Adams Branch built?

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

What condition is Nfa 860 (sa 2714) over Adams Branch 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 July 2023.

How much traffic does Nfa 860 (sa 2714) over Adams Branch carry?

About 1,059 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 860 (sa 2714) over Adams Branch?

The structure is 91 ft (27.7 m) long with a longest span of 33 ft (10.2 m) and a deck 30 ft wide.

Who owns Nfa 860 (sa 2714) over Adams Branch?

It is owned by the County Highway Agency.