US Bridges

County HIGHWAY115 over Slab Creek

PoorPosted for load

Marshall County, Alabama · 4170 Ft N JCT 1073 · Structure no. 001834

Built
1960
65 years old
Condition
Poor
inspected June 2024
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
200
1994 count
Owner
County
County Highway Agency

About this bridge

County HIGHWAY115 over Slab Creek is a concrete culvert carrying County HIGHWAY115 over Slab Creek in Marshall County, Alabama. It was built in 1960, so it is 65 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 350 by 2044. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty HIGHWAY115
CrossesSlab Creek
Location4170 Ft N JCT 1073
RouteCounty Highway 159
CountyMarshall County
StateAlabama
Coordinates34.24246, -86.31434
Functional classRural Local

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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating15 US tons
Inventory rating13 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 10
Structure length32 ft (9.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1994)
Projected traffic350 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$273,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County HIGHWAY115 over Slab Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is County HIGHWAY115 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 June 2024.

How much traffic does County HIGHWAY115 over Slab Creek carry?

About 200 vehicles per day (1994 count), of which roughly 1% are trucks.

How long is County HIGHWAY115 over Slab Creek?

The structure is 32 ft (9.8 m) long with a longest span of 12 ft (3.7 m).

Who owns County HIGHWAY115 over Slab Creek?

It is owned by the County Highway Agency.