US Bridges

CO RD 46 over Mahan Creek

Good

Chilton County, Alabama · CR46 2.3M W Dry Valley Ch · Structure no. 020879

Built
2013
12 years old
Condition
Good
inspected February 2024
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
175
2013 count
Owner
County
County Highway Agency

About this bridge

CO RD 46 over Mahan Creek is a concrete channel beam carrying CO RD 46 over Mahan Creek in Chilton County, Alabama. It was built in 2013, so it is 12 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, projected to reach 200 by 2034. The structure is 34 ft (10.4 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCO RD 46
CrossesMahan Creek
LocationCR46 2.3M W Dry Valley Ch
RouteCounty Highway 0
StateAlabama
Coordinates33.02833, -86.86667
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.9 US tons
Inventory rating49.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic175 (2013)
Projected traffic200 by 2034
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$348,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 46 over Mahan Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is CO RD 46 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 February 2024.

How much traffic does CO RD 46 over Mahan Creek carry?

About 175 vehicles per day (2013 count).

How long is CO RD 46 over Mahan Creek?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.

Who owns CO RD 46 over Mahan Creek?

It is owned by the County Highway Agency.