US Bridges

Nfa 1534 (sa 6615) over Cub Branch

FairPosted for load

Obion County, Tennessee · 4.9 MI NW JCT SR5&SR22 · Structure no. 66015340001

Built
1970
55 years old, rebuilt 2002
Condition
Fair
inspected March 2023
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
518
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1534 (sa 6615) over Cub Branch is a concrete channel beam carrying Nfa 1534 (sa 6615) over Cub Branch in Obion County, Tennessee. It was built in 1970 and reconstructed in 2002, so it is 55 years old, older 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. Its operating status is: posted for load restriction.

It carries about 518 vehicles a day, roughly 3% of them trucks, projected to reach 869 by 2042. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNfa 1534 (sa 6615)
CrossesCub Branch
Location4.9 MI NW JCT SR5&SR22
RouteCounty Highway 1534
CountyObion County
StateTennessee
Coordinates36.48367, -89.14755
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating35.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic518 (2021)
Projected traffic869 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$112,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1534 (sa 6615) over Cub Branch built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2002.

What condition is Nfa 1534 (sa 6615) over Cub Branch 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 March 2023.

How much traffic does Nfa 1534 (sa 6615) over Cub Branch carry?

About 518 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1534 (sa 6615) over Cub Branch?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 29 ft wide.

Who owns Nfa 1534 (sa 6615) over Cub Branch?

It is owned by the County Highway Agency.