US Bridges

1st Ave So over Branch

Good

Jefferson County, Alabama · 1st Ave S * 37th ST · Structure no. 012383

Built
1980
45 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
1,000
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

1st Ave So over Branch is a concrete culvert carrying 1st Ave So over Branch in Jefferson County, Alabama. It was built in 1980, so it is 45 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,000 vehicles a day, roughly 20% of them trucks, projected to reach 2,500 by 2036. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries1st Ave So
CrossesBranch
Location1st Ave S * 37th ST
RouteCity Street 0
CountyJefferson County
StateAlabama
Coordinates33.52325, -86.78006
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.4 US tons
Inventory rating24.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2016)
Projected traffic2,500 by 2036
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$248,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1st Ave So over Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is 1st Ave So over Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does 1st Ave So over Branch carry?

About 1,000 vehicles per day (2016 count), of which roughly 20% are trucks.

How long is 1st Ave So over Branch?

The structure is 20 ft (6.1 m) long with a longest span of 12 ft (3.7 m).

Who owns 1st Ave So over Branch?

It is owned by the City or Municipal Highway Agency.