US Bridges

Nfa B120 over Bledsoe Creek

Fair

Sumner County, Tennessee · 2.8 MI NE JCT SR6 &sr 376 · Structure no. 830B1200007

Built
1984
41 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
69 ft
3 main spans
Daily traffic
210
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 1984, so it is 41 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 210 vehicles a day, roughly 2% of them trucks, projected to reach 336 by 2041. The structure is 69 ft (21 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa B120
CrossesBledsoe Creek
Location2.8 MI NE JCT SR6 &sr 376
RouteCounty Highway 0B120
CountySumner County
StateTennessee
Coordinates36.51603, -86.23548
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length69 ft (21 m)
Longest span15 ft (4.6 m)
Deck width27 ft (8.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic336 by 2041
Trucks2%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$457,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B120 over Bledsoe Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa B120 over Bledsoe Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does Nfa B120 over Bledsoe Creek carry?

About 210 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B120 over Bledsoe Creek?

The structure is 69 ft (21 m) long with a longest span of 15 ft (4.6 m) and a deck 27 ft wide.

Who owns Nfa B120 over Bledsoe Creek?

It is owned by the County Highway Agency.