US Bridges

Nfa B632 over Red River

Good

Washington County, Tennessee · SE of I181 at CO Line · Structure no. 900B6320001

Built
1974
51 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
358
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa B632 over Red River is a concrete tee beam carrying Nfa B632 over Red River in Washington County, Tennessee. It was built in 1974, so it is 51 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 358 vehicles a day, roughly 4% of them trucks, projected to reach 573 by 2042. The structure is 25 ft (7.5 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa B632
CrossesRed River
LocationSE of I181 at CO Line
RouteCounty Highway 632
Coordinates36.41545, -82.51293
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.5 m)
Longest span23 ft (7 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic358 (2021)
Projected traffic573 by 2042
Trucks4%
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$73,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B632 over Red River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Nfa B632 over Red River 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 June 2024.

How much traffic does Nfa B632 over Red River carry?

About 358 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa B632 over Red River?

The structure is 25 ft (7.5 m) long with a longest span of 23 ft (7 m) and a deck 26 ft wide.

Who owns Nfa B632 over Red River?

It is owned by the County Highway Agency.