US Bridges

Nfa 1596 (sa 2721) over Branch

FairPosted for load

Gibson County, Tennessee · 3.1 MI E JCT SR5&SR77 · Structure no. 27015960003

Built
1965
60 years old
Condition
Fair
inspected September 2023
Type
Channel Beam
Concrete
Length
67 ft
3 main spans
Daily traffic
409
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1596 (sa 2721) over Branch is a concrete channel beam carrying Nfa 1596 (sa 2721) over Branch in Gibson County, Tennessee. It was built in 1965, so it is 60 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 409 vehicles a day, roughly 3% of them trucks, projected to reach 440 by 2041. The structure is 67 ft (20.4 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesNfa 1596 (sa 2721)
CrossesBranch
Location3.1 MI E JCT SR5&SR77
RouteCounty Highway 1596
CountyGibson County
StateTennessee
Coordinates36.07111, -88.94628
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 rating17.9 US tons
Inventory rating13.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length67 ft (20.4 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic409 (2021)
Projected traffic440 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$185,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1596 (sa 2721) over Branch built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa 1596 (sa 2721) over 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 September 2023.

How much traffic does Nfa 1596 (sa 2721) over Branch carry?

About 409 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1596 (sa 2721) over Branch?

The structure is 67 ft (20.4 m) long with a longest span of 29 ft (8.8 m) and a deck 25 ft wide.

Who owns Nfa 1596 (sa 2721) over Branch?

It is owned by the County Highway Agency.