US Bridges

23rd St. North over Blue Creek

Good

Jefferson County, Alabama · 300 W. 5th Ave North · Structure no. 020870

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
79
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

23rd St. North over Blue Creek is a concrete culvert carrying 23rd St. North over Blue Creek in Jefferson County, Alabama. It was built in 2018, so it is 7 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 79 vehicles a day, roughly 1% of them trucks, projected to reach 117 by 2044. The structure is 31 ft (9.5 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries23rd St. North
CrossesBlue Creek
Location300 W. 5th Ave North
RouteCity Street 0
StateAlabama
Coordinates33.40864, -86.95284
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating30.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.5 m)
Longest span16 ft (4.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (2024)
Projected traffic117 by 2044
Trucks1%
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$464,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 23rd St. North over Blue Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is 23rd St. North over Blue Creek 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 May 2024.

How much traffic does 23rd St. North over Blue Creek carry?

About 79 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is 23rd St. North over Blue Creek?

The structure is 31 ft (9.5 m) long with a longest span of 16 ft (4.8 m) and a deck 30 ft wide.

Who owns 23rd St. North over Blue Creek?

It is owned by the City or Municipal Highway Agency.