US Bridges

FAP 57 over Boles Branch

Fair

McNairy County, Tennessee · 2.9 Mi.W.Of Ramer · Structure no. 55SR0570001

Built
1939
86 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,606
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 57 over Boles Branch is a concrete continuous culvert carrying FAP 57 over Boles Branch in McNairy County, Tennessee. It was built in 1939, so it is 86 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.

It carries about 1,606 vehicles a day, roughly 5% of them trucks, projected to reach 2,176 by 2040. The structure is 23 ft (7.1 m) long and 34 ft wide. If it were closed, the detour would be 62.8 mi (101 km).

Location

Open in Google Maps
CarriesFAP 57
CrossesBoles Branch
Location2.9 Mi.W.Of Ramer
RouteState Highway 57
CountyMcNairy County
StateTennessee
Coordinates35.07453, -88.69295
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating53.6 US tons
Inventory rating32.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7.1 m)
Longest span10 ft (3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,606 (2021)
Projected traffic2,176 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.8 mi (101 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$205,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 57 over Boles Branch built?

It was built in 1939, making it 86 years old in 2025.

What condition is FAP 57 over Boles 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 2024.

How much traffic does FAP 57 over Boles Branch carry?

About 1,606 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAP 57 over Boles Branch?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns FAP 57 over Boles Branch?

It is owned by the State Highway Agency.