US Bridges

County RD 42 over Mobley Creek

Good

Covington County, Alabama · Brooklyn RD at Mobley CR · Structure no. 005231

Built
1955
70 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
1,100
1994 count
Owner
County
County Highway Agency

About this bridge

County RD 42 over Mobley Creek is a concrete culvert carrying County RD 42 over Mobley Creek in Covington County, Alabama. It was built in 1955, so it is 70 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 1,378 by 2030. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty RD 42
CrossesMobley Creek
LocationBrooklyn RD at Mobley CR
RouteCounty Highway 42
StateAlabama
Coordinates31.23333, -86.67026
Functional classRural Major Collector

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 inspectionOctober 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 alignment8: Equal to present desirable criteria
Operating rating74.8 US tons
Inventory rating44.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length20 ft (6.1 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 traffic1,100 (1994)
Projected traffic1,378 by 2030
Trucks5%
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

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$263,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 42 over Mobley Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is County RD 42 over Mobley 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 October 2024.

How much traffic does County RD 42 over Mobley Creek carry?

About 1,100 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is County RD 42 over Mobley Creek?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns County RD 42 over Mobley Creek?

It is owned by the County Highway Agency.