US Bridges

Al - 149 over Griffin Brook

Fair

Jefferson County, Alabama · Al 149 * Green Springshwy · Structure no. 014750

Built
1965
60 years old, rebuilt 1989
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
64 ft
5 main spans
Daily traffic
23,460
2025 count
Owner
State
State Highway Agency

About this bridge

Al - 149 over Griffin Brook is a concrete culvert carrying Al - 149 over Griffin Brook in Jefferson County, Alabama. It was built in 1965 and reconstructed in 1989, so it is 60 years old, older 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 23,460 vehicles a day, roughly 3% of them trucks, projected to reach 28,626 by 2045. The structure is 64 ft (19.5 m) long and 147 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAl - 149
CrossesGriffin Brook
LocationAl 149 * Green Springshwy
RouteState Highway 149
CountyJefferson County
StateAlabama
Coordinates33.4525, -86.81056
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating24.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span12 ft (3.7 m)
Deck width147 ft (44.8 m)
Roadway width145 ft (44.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,460 (2025)
Projected traffic28,626 by 2045
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al - 149 over Griffin Brook built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1989.

What condition is Al - 149 over Griffin Brook 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 2025.

How much traffic does Al - 149 over Griffin Brook carry?

About 23,460 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Al - 149 over Griffin Brook?

The structure is 64 ft (19.5 m) long with a longest span of 12 ft (3.7 m) and a deck 147 ft wide.

Who owns Al - 149 over Griffin Brook?

It is owned by the State Highway Agency.