US Bridges

Nfa A354 over Bethel Branch

FairPosted for load

Gibson County, Tennessee · 2.8 MI S JCT SR77&DYER CO · Structure no. 270A3540001

Built
1972
53 years old, rebuilt 1991
Condition
Fair
inspected July 2023
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A354 over Bethel Branch is a concrete channel beam carrying Nfa A354 over Bethel Branch in Gibson County, Tennessee. It was built in 1972 and reconstructed in 1991, so it is 53 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 6 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2041. The structure is 57 ft (17.4 m) long and 22 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesNfa A354
CrossesBethel Branch
Location2.8 MI S JCT SR77&DYER CO
RouteCounty Highway 354
CountyGibson County
StateTennessee
Coordinates36.07344, -89.16102
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6.1 US tons
Inventory rating4.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$347,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A354 over Bethel Branch built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1991.

What condition is Nfa A354 over Bethel 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 A354 over Bethel Branch carry?

About 100 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A354 over Bethel Branch?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns Nfa A354 over Bethel Branch?

It is owned by the County Highway Agency.