US Bridges

Alabama Ave over Rvr Des Peres

GoodPosted for load

St. Louis city, Missouri · S 18 T 44 N R 7 E · Structure no. 12425

Built
1994
31 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
255 ft
4 main spans
Daily traffic
10,800
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alabama Ave over Rvr Des Peres is a prestressed concrete continuous stringer/multi-beam or girder carrying Alabama Ave over Rvr Des Peres in St. Louis city, Missouri. It was built in 1994, so it is 31 years old, younger than the Missouri average of 45.1 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. Its operating status is: posted for load restriction.

It carries about 10,800 vehicles a day, roughly 5% of them trucks, projected to reach 14,580 by 2044. The structure is 255 ft (77.7 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesAlabama Ave
CrossesRvr Des Peres
LocationS 18 T 44 N R 7 E
RouteCity Street 0
Coordinates38.54529, -90.27098
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating45.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span71 ft (21.6 m)
Deck width71 ft (21.7 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,800 (2024)
Projected traffic14,580 by 2044
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Alabama Ave over Rvr Des Peres built?

It was built in 1994, making it 31 years old in 2025.

What condition is Alabama Ave over Rvr Des Peres 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 March 2024.

How much traffic does Alabama Ave over Rvr Des Peres carry?

About 10,800 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Alabama Ave over Rvr Des Peres?

The structure is 255 ft (77.7 m) long with a longest span of 71 ft (21.6 m) and a deck 71 ft wide.

Who owns Alabama Ave over Rvr Des Peres?

It is owned by the City or Municipal Highway Agency.