US Bridges

Nfa 2138 (sa 8920) over Hills Creek

Good

Warren County, Tennessee · 3 MI East of SR 56 · Structure no. 89021380005

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
197 ft
3 main spans
Daily traffic
570
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2138 (sa 8920) over Hills Creek is a concrete continuous culvert carrying Nfa 2138 (sa 8920) over Hills Creek in Warren County, Tennessee. It was built in 1998, so it is 27 years old, younger 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.

It carries about 570 vehicles a day, roughly 3% of them trucks, projected to reach 960 by 2041. The structure is 197 ft (60 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa 2138 (sa 8920)
CrossesHills Creek
Location3 MI East of SR 56
RouteCounty Highway 2138
Coordinates35.56368, -85.6558
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than 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
DeckNot applicable
Main spans3
Design loadHS 20
Structure length197 ft (60 m)
Longest span61 ft (18.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic570 (2021)
Projected traffic960 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2138 (sa 8920) over Hills Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Nfa 2138 (sa 8920) over Hills 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 2138 (sa 8920) over Hills Creek carry?

About 570 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2138 (sa 8920) over Hills Creek?

The structure is 197 ft (60 m) long with a longest span of 61 ft (18.6 m).

Who owns Nfa 2138 (sa 8920) over Hills Creek?

It is owned by the County Highway Agency.