US Bridges

CO Rt 317 over Flat Creek

Good

Lawrence County, Alabama · 0.7 MI E JCT CO Rt 434 · Structure no. 015170

Built
1990
35 years old
Condition
Good
inspected March 2024
Type
Channel Beam
Concrete
Length
32 ft
1 main span
Daily traffic
475
1987 count
Owner
County
County Highway Agency

About this bridge

CO Rt 317 over Flat Creek is a concrete channel beam carrying CO Rt 317 over Flat Creek in Lawrence County, Alabama. It was built in 1990, so it is 35 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 475 vehicles a day, roughly 10% of them trucks, projected to reach 900 by 2034. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCO Rt 317
CrossesFlat Creek
Location0.7 MI E JCT CO Rt 434
RouteCounty Highway 317
StateAlabama
Coordinates34.53333, -87.14667
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (1987)
Projected traffic900 by 2034
Trucks10%
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$350,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Rt 317 over Flat Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is CO Rt 317 over Flat 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 March 2024.

How much traffic does CO Rt 317 over Flat Creek carry?

About 475 vehicles per day (1987 count), of which roughly 10% are trucks.

How long is CO Rt 317 over Flat Creek?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns CO Rt 317 over Flat Creek?

It is owned by the County Highway Agency.