US Bridges

Nfa A661 over Branch

Good

Obion County, Tennessee · 4.3 MI NW JCT SR105&SR211 · Structure no. 660A6610001

Built
1984
41 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A661 over Branch is a concrete continuous culvert carrying Nfa A661 over Branch in Obion 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 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 40 vehicles a day, roughly 4% of them trucks, projected to reach 64 by 2041. The structure is 37 ft (11.3 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa A661
CrossesBranch
Location4.3 MI NW JCT SR105&SR211
RouteCounty Highway 661
CountyObion County
StateTennessee
Coordinates36.25636, -89.23031
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment6: Equal to present minimum criteria
Operating rating90.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span15 ft (4.6 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic64 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A661 over Branch built?

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

What condition is Nfa A661 over Branch 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 March 2023.

How much traffic does Nfa A661 over Branch carry?

About 40 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A661 over Branch?

The structure is 37 ft (11.3 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Nfa A661 over Branch?

It is owned by the County Highway Agency.