US Bridges

Nfa B340 over Spring Creek

Good

Wilson County, Tennessee · 0.5 MI SE JCT SR24&SR171 · Structure no. 950B3400001

Built
1988
37 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
1,700
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B340 over Spring Creek is a concrete continuous culvert carrying Nfa B340 over Spring Creek in Wilson County, Tennessee. It was built in 1988, so it is 37 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 1,700 vehicles a day, roughly 2% of them trucks, projected to reach 2,720 by 2038. The structure is 22 ft (6.7 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNfa B340
CrossesSpring Creek
Location0.5 MI SE JCT SR24&SR171
RouteCity Street 0B340
Coordinates36.23015, -86.50301
Functional classUrban Local

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width48 ft (14.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2020)
Projected traffic2,720 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 B340 over Spring Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa B340 over Spring 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 July 2024.

How much traffic does Nfa B340 over Spring Creek carry?

About 1,700 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B340 over Spring Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.

Who owns Nfa B340 over Spring Creek?

It is owned by the City or Municipal Highway Agency.