US Bridges

SR 79 over Seibold Creek

Fair

Marshall County, Alabama · 0.6 MI N JCT US431 * SR79 · Structure no. 001484

Built
1936
89 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
6,045
2023 count
Owner
State
State Highway Agency

About this bridge

SR 79 over Seibold Creek is a concrete culvert carrying SR 79 over Seibold Creek in Marshall County, Alabama. It was built in 1936, so it is 89 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 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 6,045 vehicles a day, roughly 20% of them trucks, projected to reach 8,463 by 2043. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 79
CrossesSeibold Creek
Location0.6 MI N JCT US431 * SR79
RouteState Highway 79
CountyMarshall County
StateAlabama
Coordinates34.43155, -86.25507
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length39 ft (11.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,045 (2023)
Projected traffic8,463 by 2043
Trucks20%
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

OwnerState Highway Agency
Maintained byState 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$650,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 79 over Seibold Creek built?

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

What condition is SR 79 over Seibold 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 December 2024.

How much traffic does SR 79 over Seibold Creek carry?

About 6,045 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is SR 79 over Seibold Creek?

The structure is 39 ft (11.9 m) long with a longest span of 10 ft (3 m).

Who owns SR 79 over Seibold Creek?

It is owned by the State Highway Agency.