US Bridges

Underwood Mtn RD over Little Bear Creek

Fair

Colbert County, Alabama · Underwood Mtn Bear Creek · Structure no. 013958

Built
1986
39 years old
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
204 ft
6 main spans
Daily traffic
823
1985 count
Owner
County
County Highway Agency

About this bridge

Underwood Mtn RD over Little Bear Creek is a concrete channel beam carrying Underwood Mtn RD over Little Bear Creek in Colbert County, Alabama. It was built in 1986, so it is 39 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 823 vehicles a day, roughly 10% of them trucks, projected to reach 1,600 by 2044. The structure is 204 ft (62.2 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUnderwood Mtn RD
CrossesLittle Bear Creek
LocationUnderwood Mtn Bear Creek
RouteCounty Highway 51
StateAlabama
Coordinates34.6628, -87.73544
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80.2 US tons
Inventory rating48.3 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length204 ft (62.2 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic823 (1985)
Projected traffic1,600 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Underwood Mtn RD over Little Bear Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Underwood Mtn RD over Little Bear Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Underwood Mtn RD over Little Bear Creek carry?

About 823 vehicles per day (1985 count), of which roughly 10% are trucks.

How long is Underwood Mtn RD over Little Bear Creek?

The structure is 204 ft (62.2 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Underwood Mtn RD over Little Bear Creek?

It is owned by the County Highway Agency.