US Bridges

Old US No 11 over Slough

Fair

Tuscaloosa County, Alabama · 0.2 MI NE of JCT US No 11 · Structure no. 001017

Built
1932
93 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete
Length
92 ft
3 main spans
Daily traffic
20
1996 count
Owner
County
County Highway Agency

About this bridge

Old US No 11 over Slough is a concrete tee beam carrying Old US No 11 over Slough in Tuscaloosa County, Alabama. It was built in 1932, so it is 93 years old, older than the Alabama average of 51.1 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 20 vehicles a day, projected to reach 50 by 2035. The structure is 92 ft (28 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld US No 11
CrossesSlough
Location0.2 MI NE of JCT US No 11
RouteCounty Highway 504
CountyTuscaloosa County
StateAlabama
Coordinates33.15475, -87.63444
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating50.4 US tons
Inventory rating30.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length92 ft (28 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1996)
Projected traffic50 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$703,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old US No 11 over Slough built?

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

What condition is Old US No 11 over Slough 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 July 2023.

How much traffic does Old US No 11 over Slough carry?

About 20 vehicles per day (1996 count).

How long is Old US No 11 over Slough?

The structure is 92 ft (28 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Old US No 11 over Slough?

It is owned by the County Highway Agency.