US Bridges

Nfa 1231 (sa 5405) over Spring Creek

Fair

McMinn County, Tennessee · 5MI West of SR2 · Structure no. 54S43740011

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
1,086
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1231 (sa 5405) over Spring Creek is a concrete continuous culvert carrying Nfa 1231 (sa 5405) over Spring Creek in McMinn County, Tennessee. It was built in 1976, so it is 49 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.

It carries about 1,086 vehicles a day, roughly 5% of them trucks, projected to reach 1,738 by 2042. The structure is 39 ft (11.9 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 1231 (sa 5405)
CrossesSpring Creek
Location5MI West of SR2
RouteCounty Highway 1231
CountyMcMinn County
StateTennessee
Coordinates35.4082, -84.73043
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width39 ft (11.8 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,086 (2021)
Projected traffic1,738 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 1231 (sa 5405) over Spring Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Nfa 1231 (sa 5405) over Spring 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 July 2023.

How much traffic does Nfa 1231 (sa 5405) over Spring Creek carry?

About 1,086 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Nfa 1231 (sa 5405) over Spring Creek?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m) and a deck 39 ft wide.

Who owns Nfa 1231 (sa 5405) over Spring Creek?

It is owned by the County Highway Agency.