US Bridges

FAS 61 over Laurel Branch

Fair

Anderson County, Tennessee · 2.94 Mi.E.Jct.Fas 2609 · Structure no. 01SR0610005

Built
1946
79 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
46 ft
2 main spans
Daily traffic
4,843
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 61 over Laurel Branch is a concrete tee beam carrying FAS 61 over Laurel Branch in Anderson County, Tennessee. It was built in 1946, so it is 79 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 5 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 4,843 vehicles a day, roughly 3% of them trucks, projected to reach 7,749 by 2042. The structure is 46 ft (14.1 m) long and 32 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesFAS 61
CrossesLaurel Branch
Location2.94 Mi.E.Jct.Fas 2609
RouteState Highway 61
Coordinates36.03807, -84.26092
Functional classUrban 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length46 ft (14.1 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,843 (2021)
Projected traffic7,749 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$181,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 61 over Laurel Branch built?

It was built in 1946, making it 79 years old in 2025.

What condition is FAS 61 over Laurel 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 November 2024.

How much traffic does FAS 61 over Laurel Branch carry?

About 4,843 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAS 61 over Laurel Branch?

The structure is 46 ft (14.1 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns FAS 61 over Laurel Branch?

It is owned by the State Highway Agency.