US Bridges

Mt Sinai RD CR1079 over Slab Creek

Good

Marshall County, Alabama · _ · Structure no. 021073

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
1 main span
Daily traffic
544
2018 count
Owner
County
County Highway Agency

About this bridge

Mt Sinai RD CR1079 over Slab Creek is a prestressed concrete stringer/multi-beam or girder carrying Mt Sinai RD CR1079 over Slab Creek in Marshall County, Alabama. It was built in 2019, so it is 6 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 544 vehicles a day, projected to reach 808 by 2044. The structure is 160 ft (48.8 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesMt Sinai RD CR1079
CrossesSlab Creek
Location_
RouteCounty Highway 79
CountyMarshall County
StateAlabama
Coordinates34.21523, -86.33783
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.2 US tons
Inventory rating39.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span80 ft (24.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic544 (2018)
Projected traffic808 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mt Sinai RD CR1079 over Slab Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Mt Sinai RD CR1079 over Slab Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Mt Sinai RD CR1079 over Slab Creek carry?

About 544 vehicles per day (2018 count).

How long is Mt Sinai RD CR1079 over Slab Creek?

The structure is 160 ft (48.8 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.

Who owns Mt Sinai RD CR1079 over Slab Creek?

It is owned by the County Highway Agency.