US Bridges

Nfa 1137 (sa 8916) over Mountain Creek

GoodPosted for load

Warren County, Tennessee · 1MI West of Collins River · Structure no. 89F00200009

Built
1950
75 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Concrete Continuous
Length
157 ft
3 main spans
Daily traffic
538
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1137 (sa 8916) over Mountain Creek is a concrete continuous tee beam carrying Nfa 1137 (sa 8916) over Mountain Creek in Warren County, Tennessee. It was built in 1950, so it is 75 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 538 vehicles a day, roughly 3% of them trucks, projected to reach 861 by 2042. The structure is 157 ft (47.9 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 1137 (sa 8916)
CrossesMountain Creek
Location1MI West of Collins River
RouteCounty Highway 1137
CountyWarren County
StateTennessee
Coordinates35.76806, -85.72917
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length157 ft (47.9 m)
Longest span60 ft (18.3 m)
Deck width25 ft (7.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic538 (2021)
Projected traffic861 by 2042
Trucks3%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$448,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1137 (sa 8916) over Mountain Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa 1137 (sa 8916) over Mountain Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Nfa 1137 (sa 8916) over Mountain Creek carry?

About 538 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1137 (sa 8916) over Mountain Creek?

The structure is 157 ft (47.9 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.

Who owns Nfa 1137 (sa 8916) over Mountain Creek?

It is owned by the County Highway Agency.