US Bridges

FAP 55 over Rock Creek

Fair

Coffee County, Tennessee · In Tullahoma City Limits · Structure no. 16SR0550001

Built
1936
89 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
156 ft
4 main spans
Daily traffic
8,738
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 55 over Rock Creek is a concrete tee beam carrying FAP 55 over Rock Creek in Coffee County, Tennessee. It was built in 1936, so it is 89 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 8,738 vehicles a day, roughly 9% of them trucks, projected to reach 15,168 by 2039. The structure is 156 ft (47.5 m) long and 52 ft wide. If it were closed, the detour would be 46 mi (74 km).

Location

Open in Google Maps
CarriesFAP 55
CrossesRock Creek
LocationIn Tullahoma City Limits
RouteState Highway 55
CountyCoffee County
StateTennessee
Coordinates35.366, -86.22293
Functional classUrban Other Principal 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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating50.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length156 ft (47.5 m)
Longest span39 ft (11.9 m)
Deck width52 ft (15.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,738 (2021)
Projected traffic15,168 by 2039
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed46 mi (74 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$464,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 55 over Rock Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is FAP 55 over Rock 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 November 2023.

How much traffic does FAP 55 over Rock Creek carry?

About 8,738 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 55 over Rock Creek?

The structure is 156 ft (47.5 m) long with a longest span of 39 ft (11.9 m) and a deck 52 ft wide.

Who owns FAP 55 over Rock Creek?

It is owned by the State Highway Agency.