US Bridges

US 280 Off Ramp over Water * Gas Mains

Fair

Jefferson County, Alabama · US 280 * Al 149 · Structure no. 008328

Built
1964
61 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
136 ft
4 main spans
Daily traffic
3,300
2022 count
Owner
State
State Highway Agency

About this bridge

US 280 Off Ramp over Water * Gas Mains is a concrete tee beam carrying US 280 Off Ramp over Water * Gas Mains in Jefferson County, Alabama. It was built in 1964, so it is 61 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 3,300 vehicles a day, roughly 3% of them trucks, projected to reach 4,850 by 2042. The structure is 136 ft (41.5 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 280 Off Ramp
CrossesWater * Gas Mains
LocationUS 280 * Al 149
RouteU.S. Route 280
CountyJefferson County
StateAlabama
Coordinates33.47333, -86.76667
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2022)
Projected traffic4,850 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$887,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 280 Off Ramp over Water * Gas Mains built?

It was built in 1964, making it 61 years old in 2025.

What condition is US 280 Off Ramp over Water * Gas Mains 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 August 2023.

How much traffic does US 280 Off Ramp over Water * Gas Mains carry?

About 3,300 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is US 280 Off Ramp over Water * Gas Mains?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 23 ft wide.

Who owns US 280 Off Ramp over Water * Gas Mains?

It is owned by the State Highway Agency.