US Bridges

FAP 151 over Little Salt Lick Creek

Fair

Macon County, Tennessee · In Red Boiling Springs · Structure no. 56SR1510003

Built
1940
85 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
313
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 151 over Little Salt Lick Creek is a concrete continuous culvert carrying FAP 151 over Little Salt Lick Creek in Macon County, Tennessee. It was built in 1940, so it is 85 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 313 vehicles a day, roughly 6% of them trucks, projected to reach 555 by 2041. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesFAP 151
CrossesLittle Salt Lick Creek
LocationIn Red Boiling Springs
RouteState Highway 151
CountyMacon County
StateTennessee
Coordinates36.52752, -85.83918
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic313 (2021)
Projected traffic555 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$100,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 151 over Little Salt Lick Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is FAP 151 over Little Salt Lick Creek 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 2023.

How much traffic does FAP 151 over Little Salt Lick Creek carry?

About 313 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 151 over Little Salt Lick Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns FAP 151 over Little Salt Lick Creek?

It is owned by the State Highway Agency.