US Bridges

Nfa 2138 (sa 8920) over Spring Creek

PoorPosted for load

Warren County, Tennessee · 3MI South of SR8 · Structure no. 89021380009

Built
1930
95 years old, rebuilt 1950
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
570
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2138 (sa 8920) over Spring Creek is a steel stringer/multi-beam or girder carrying Nfa 2138 (sa 8920) over Spring Creek in Warren County, Tennessee. It was built in 1930 and reconstructed in 1950, so it is 95 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 570 vehicles a day, roughly 3% of them trucks, projected to reach 626 by 2041. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa 2138 (sa 8920)
CrossesSpring Creek
Location3MI South of SR8
RouteCounty Highway 2138
Coordinates35.5637, -85.6184
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating7.2 US tons
Inventory rating5.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic570 (2021)
Projected traffic626 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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$436,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1950.

What condition is Nfa 2138 (sa 8920) over Spring Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does Nfa 2138 (sa 8920) over Spring Creek carry?

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

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

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 22 ft wide.

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

It is owned by the County Highway Agency.