US Bridges

County HWY 1131 over Slab Creek

PoorPosted for load

Marshall County, Alabama · 5996 Ft S JCT 1073 · Structure no. 004141

Built
1958
67 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
84 ft
2 main spans
Daily traffic
850
1994 count
Owner
County
County Highway Agency

About this bridge

County HWY 1131 over Slab Creek is a steel stringer/multi-beam or girder carrying County HWY 1131 over Slab Creek in Marshall County, Alabama. It was built in 1958, so it is 67 years old, older than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 850 vehicles a day, roughly 1% of them trucks, projected to reach 1,200 by 2044. The structure is 84 ft (25.6 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty HWY 1131
CrossesSlab Creek
Location5996 Ft S JCT 1073
RouteCounty Highway 131
CountyMarshall County
StateAlabama
Coordinates34.22218, -86.28903
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating18.2 US tons
Inventory rating11.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length84 ft (25.6 m)
Longest span39 ft (11.9 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (1994)
Projected traffic1,200 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$573,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County HWY 1131 over Slab Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is County HWY 1131 over Slab Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does County HWY 1131 over Slab Creek carry?

About 850 vehicles per day (1994 count), of which roughly 1% are trucks.

How long is County HWY 1131 over Slab Creek?

The structure is 84 ft (25.6 m) long with a longest span of 39 ft (11.9 m) and a deck 22 ft wide.

Who owns County HWY 1131 over Slab Creek?

It is owned by the County Highway Agency.