US Bridges

Co. RD 91 over Flat Creek

Good

Covington County, Alabama · Hattaway Road · Structure no. 010400

Built
1970
55 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
70 ft
5 main spans
Daily traffic
290
1994 count
Owner
County
County Highway Agency

About this bridge

Co. RD 91 over Flat Creek is a concrete culvert carrying Co. RD 91 over Flat Creek in Covington County, Alabama. It was built in 1970, so it is 55 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 290 vehicles a day, roughly 5% of them trucks, projected to reach 373 by 2030. The structure is 70 ft (21.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCo. RD 91
CrossesFlat Creek
LocationHattaway Road
RouteCounty Highway 91
StateAlabama
Coordinates31.19867, -86.22526
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length70 ft (21.3 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (1994)
Projected traffic373 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$668,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. RD 91 over Flat Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Co. RD 91 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. RD 91 over Flat Creek carry?

About 290 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is Co. RD 91 over Flat Creek?

The structure is 70 ft (21.3 m) long with a longest span of 14 ft (4.3 m).

Who owns Co. RD 91 over Flat Creek?

It is owned by the County Highway Agency.