US Bridges

Nfa 1657 (sa 5501) over Branch

Fair

McNairy County, Tennessee · 4.3 MI S of SR57 · Structure no. 55016570005

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
108 ft
3 main spans
Daily traffic
60
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1657 (sa 5501) over Branch is a prestressed concrete stringer/multi-beam or girder carrying Nfa 1657 (sa 5501) over Branch in McNairy County, Tennessee. It was built in 1988, so it is 37 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2042. The structure is 108 ft (32.9 m) long and 24 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesNfa 1657 (sa 5501)
CrossesBranch
Location4.3 MI S of SR57
RouteCounty Highway 1657
CountyMcNairy County
StateTennessee
Coordinates35.02447, -88.70641
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating60.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span36 ft (11 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2021)
Projected traffic96 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1657 (sa 5501) over Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa 1657 (sa 5501) 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 August 2024.

How much traffic does Nfa 1657 (sa 5501) over Branch carry?

About 60 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Nfa 1657 (sa 5501) over Branch?

The structure is 108 ft (32.9 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns Nfa 1657 (sa 5501) over Branch?

It is owned by the County Highway Agency.