US Bridges

CR38 Mattie Cobb R over Mahan Creek

Good

Chilton County, Alabama · CR38 .6 M NE Cntr Hill Ch · Structure no. 007870

Built
1963
62 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
300
1985 count
Owner
County
County Highway Agency

About this bridge

CR38 Mattie Cobb R over Mahan Creek is a concrete culvert carrying CR38 Mattie Cobb R over Mahan Creek in Chilton County, Alabama. It was built in 1963, so it is 62 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 300 vehicles a day, roughly 1% of them trucks, projected to reach 350 by 2033. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCR38 Mattie Cobb R
CrossesMahan Creek
LocationCR38 .6 M NE Cntr Hill Ch
RouteCounty Highway 0
StateAlabama
Coordinates32.96957, -86.76618
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (1985)
Projected traffic350 by 2033
Trucks1%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$504,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR38 Mattie Cobb R over Mahan Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is CR38 Mattie Cobb R over Mahan 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 January 2024.

How much traffic does CR38 Mattie Cobb R over Mahan Creek carry?

About 300 vehicles per day (1985 count), of which roughly 1% are trucks.

How long is CR38 Mattie Cobb R over Mahan Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns CR38 Mattie Cobb R over Mahan Creek?

It is owned by the County Highway Agency.