US Bridges

Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek

Fair

Decatur County, Tennessee · 3.4 MI NW JCT SR20&SR69 · Structure no. 20S80640009

Built
1954
71 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
142 ft
5 main spans
Daily traffic
886
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek is a concrete tee beam carrying Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek in Decatur County, Tennessee. It was built in 1954, so it is 71 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.

It carries about 886 vehicles a day, roughly 3% of them trucks, projected to reach 1,418 by 2042. The structure is 142 ft (43.4 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 5577 (sa 2005)
CrossesSulphur Fork Cub Creek
Location3.4 MI NW JCT SR20&SR69
RouteCounty Highway 5577
Coordinates35.69742, -88.1535
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 protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length142 ft (43.4 m)
Longest span29 ft (8.7 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic886 (2021)
Projected traffic1,418 by 2042
Trucks3%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$229,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek 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 2024.

How much traffic does Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek carry?

About 886 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek?

The structure is 142 ft (43.4 m) long with a longest span of 29 ft (8.7 m) and a deck 29 ft wide.

Who owns Nfa 5577 (sa 2005) over Sulphur Fork Cub Creek?

It is owned by the County Highway Agency.