US Bridges

Air Base Blvd over L*n RR

Fair

Montgomery County, Alabama · 0.1 MI N of Mobile HWY · Structure no. 011514

Built
1975
50 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
164 ft
3 main spans
Daily traffic
8,470
1988 count
Owner
City
City or Municipal Highway Agency

About this bridge

Air Base Blvd over L*n RR is a steel continuous stringer/multi-beam or girder carrying Air Base Blvd over L*n RR in Montgomery County, Alabama. It was built in 1975, so it is 50 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 8,470 vehicles a day, roughly 2% of them trucks, projected to reach 11,909 by 2044. The structure is 164 ft (50 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAir Base Blvd
CrossesL*n RR
Location0.1 MI N of Mobile HWY
RouteCity Street 0
CountyMontgomery County
StateAlabama
Coordinates32.34794, -86.34078
Functional classUrban Local

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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.3 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length164 ft (50 m)
Longest span60 ft (18.3 m)
Deck width55 ft (16.8 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,470 (1988)
Projected traffic11,909 by 2044
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$2.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Air Base Blvd over L*n RR built?

It was built in 1975, making it 50 years old in 2025.

What condition is Air Base Blvd over L*n RR 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 December 2024.

How much traffic does Air Base Blvd over L*n RR carry?

About 8,470 vehicles per day (1988 count), of which roughly 2% are trucks.

How long is Air Base Blvd over L*n RR?

The structure is 164 ft (50 m) long with a longest span of 60 ft (18.3 m) and a deck 55 ft wide.

Who owns Air Base Blvd over L*n RR?

It is owned by the City or Municipal Highway Agency.