US Bridges

Nfa A354 over Salt Lick Creek

Fair

Macon County, Tennessee · In Red Boiling Springs · Structure no. 560A3540001

Built
1984
41 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
100
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A354 over Salt Lick Creek is a concrete continuous culvert carrying Nfa A354 over Salt Lick Creek in Macon County, Tennessee. It was built in 1984, so it is 41 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2041. The structure is 33 ft (10.1 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa A354
CrossesSalt Lick Creek
LocationIn Red Boiling Springs
RouteCity Street 354
CountyMacon County
StateTennessee
Coordinates36.53085, -85.84848
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 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 closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 A354 over Salt Lick Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A354 over 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 September 2023.

How much traffic does Nfa A354 over Salt Lick Creek carry?

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

How long is Nfa A354 over Salt Lick Creek?

The structure is 33 ft (10.1 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns Nfa A354 over Salt Lick Creek?

It is owned by the City or Municipal Highway Agency.