US Bridges

Nfa B120 over Bledsoe Creek

Good

Sumner County, Tennessee · 2 MI NE JCT SR 6 & SR 376 · Structure no. 830B1200003

Built
1960
65 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
440
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B120 over Bledsoe Creek is a concrete continuous culvert carrying Nfa B120 over Bledsoe Creek in Sumner County, Tennessee. It was built in 1960, so it is 65 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.

It carries about 440 vehicles a day, roughly 8% of them trucks, projected to reach 704 by 2041. The structure is 23 ft (7 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa B120
CrossesBledsoe Creek
Location2 MI NE JCT SR 6 & SR 376
RouteCounty Highway 0B120
Coordinates36.5217, -86.25777
Functional classRural 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2020)
Projected traffic704 by 2041
Trucks8%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$95,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B120 over Bledsoe Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa B120 over Bledsoe 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 November 2024.

How much traffic does Nfa B120 over Bledsoe Creek carry?

About 440 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Nfa B120 over Bledsoe Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns Nfa B120 over Bledsoe Creek?

It is owned by the County Highway Agency.