US Bridges

US 31 Sbl over Catoma Creek

Fair

Montgomery County, Alabama · 0.6 Mi.S.Of Sou Blvd · Structure no. 013887

Built
1986
39 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
808 ft
1 main span
Daily traffic
7,885
2013 count
Owner
State
State Highway Agency

About this bridge

US 31 Sbl over Catoma Creek is a prestressed concrete stringer/multi-beam or girder carrying US 31 Sbl over Catoma Creek in Montgomery County, Alabama. It was built in 1986, so it is 39 years old, younger 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 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 7,885 vehicles a day, roughly 9% of them trucks, projected to reach 10,129 by 2033. The structure is 808 ft (246.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 31 Sbl
CrossesCatoma Creek
Location0.6 Mi.S.Of Sou Blvd
RouteU.S. Route 31
CountyMontgomery County
StateAlabama
Coordinates32.31928, -86.34925
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55 US tons
Inventory rating28.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+18 approach)
Design loadHS 20
Structure length808 ft (246.3 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,885 (2013)
Projected traffic10,129 by 2033
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$7.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 31 Sbl over Catoma Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 31 Sbl over Catoma 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 March 2023.

How much traffic does US 31 Sbl over Catoma Creek carry?

About 7,885 vehicles per day (2013 count), of which roughly 9% are trucks.

How long is US 31 Sbl over Catoma Creek?

The structure is 808 ft (246.3 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns US 31 Sbl over Catoma Creek?

It is owned by the State Highway Agency.