US Bridges

FAU 3634 over Big Soddy Creek Overflow

FairPosted for load

Hamilton County, Tennessee · North of Soddy Tennessee · Structure no. 33SR0290029

Built
1932
93 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete
Length
172 ft
4 main spans
Daily traffic
1,684
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3634 over Big Soddy Creek Overflow is a concrete tee beam carrying FAU 3634 over Big Soddy Creek Overflow in Hamilton County, Tennessee. It was built in 1932, so it is 93 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 1,684 vehicles a day, roughly 4% of them trucks, projected to reach 2,080 by 2042. The structure is 172 ft (52.4 m) long and 27 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesFAU 3634
CrossesBig Soddy Creek Overflow
LocationNorth of Soddy Tennessee
RouteCity Street 3634
Coordinates35.2972, -85.14874
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length172 ft (52.4 m)
Longest span43 ft (13.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,684 (2021)
Projected traffic2,080 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 3634 over Big Soddy Creek Overflow built?

It was built in 1932, making it 93 years old in 2025.

What condition is FAU 3634 over Big Soddy Creek Overflow 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 January 2025.

How much traffic does FAU 3634 over Big Soddy Creek Overflow carry?

About 1,684 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAU 3634 over Big Soddy Creek Overflow?

The structure is 172 ft (52.4 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.

Who owns FAU 3634 over Big Soddy Creek Overflow?

It is owned by the City or Municipal Highway Agency.