US Bridges

Coburn Mtn RD over Spring Creek

Fair

Colbert County, Alabama · Coburn Mtn @ Spring Creek · Structure no. 012605

Built
1981
44 years old
Condition
Fair
inspected April 2024
Type
Channel Beam
Concrete
Length
99 ft
3 main spans
Daily traffic
310
2006 count
Owner
County
County Highway Agency

About this bridge

Coburn Mtn RD over Spring Creek is a concrete channel beam carrying Coburn Mtn RD over Spring Creek in Colbert County, Alabama. It was built in 1981, so it is 44 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 310 vehicles a day, roughly 10% of them trucks, projected to reach 700 by 2044. The structure is 99 ft (30.2 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCoburn Mtn RD
CrossesSpring Creek
LocationCoburn Mtn @ Spring Creek
RouteCounty Highway 77
CountyColbert County
StateAlabama
Coordinates34.6201, -87.62219
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating79 US tons
Inventory rating47.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span33 ft (10.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2006)
Projected traffic700 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$873,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Coburn Mtn RD over Spring Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Coburn Mtn RD over Spring 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 April 2024.

How much traffic does Coburn Mtn RD over Spring Creek carry?

About 310 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is Coburn Mtn RD over Spring Creek?

The structure is 99 ft (30.2 m) long with a longest span of 33 ft (10.1 m) and a deck 30 ft wide.

Who owns Coburn Mtn RD over Spring Creek?

It is owned by the County Highway Agency.