US Bridges

CR-12 over Old RR Bed

Fair

Marion County, Alabama · 1.5MILES South JCT.172 · Structure no. 013438

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
155 ft
3 main spans
Daily traffic
115
2001 count
Owner
County
County Highway Agency

About this bridge

CR-12 over Old RR Bed is a prestressed concrete continuous stringer/multi-beam or girder carrying CR-12 over Old RR Bed in Marion County, Alabama. It was built in 1985, so it is 40 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 5 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 115 vehicles a day, roughly 5% of them trucks, projected to reach 318 by 2035. The structure is 155 ft (47.2 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR-12
CrossesOld RR Bed
Location1.5MILES South JCT.172
RouteCounty Highway 12
CountyMarion County
StateAlabama
Coordinates34.25268, -87.78994
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.7 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span55 ft (16.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2001)
Projected traffic318 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR-12 over Old RR Bed built?

It was built in 1985, making it 40 years old in 2025.

What condition is CR-12 over Old RR Bed 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 September 2023.

How much traffic does CR-12 over Old RR Bed carry?

About 115 vehicles per day (2001 count), of which roughly 5% are trucks.

How long is CR-12 over Old RR Bed?

The structure is 155 ft (47.2 m) long with a longest span of 55 ft (16.8 m) and a deck 31 ft wide.

Who owns CR-12 over Old RR Bed?

It is owned by the County Highway Agency.