US Bridges

City Street (ramp) over Chippewa

FairPosted for load

St. Louis city, Missouri · S 32 T 45 N R 7 E · Structure no. 13491

Built
1936
89 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
50 ft
1 main span
Daily traffic
1,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

City Street (ramp) over Chippewa is a concrete tee beam carrying City Street (ramp) over Chippewa in St. Louis city, Missouri. It was built in 1936, so it is 89 years old, older than the Missouri average of 45.1 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. Its operating status is: posted for load restriction.

It carries about 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,350 by 2043. The structure is 50 ft (15.3 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCity Street (ramp)
CrossesChippewa
LocationS 32 T 45 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.59, -90.26
Functional classUrban Minor 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length50 ft (15.3 m)
Longest span49 ft (14.9 m)
Deck width39 ft (12 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,350 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was City Street (ramp) over Chippewa built?

It was built in 1936, making it 89 years old in 2025.

What condition is City Street (ramp) over Chippewa 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 March 2023.

How much traffic does City Street (ramp) over Chippewa carry?

About 1,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is City Street (ramp) over Chippewa?

The structure is 50 ft (15.3 m) long with a longest span of 49 ft (14.9 m) and a deck 39 ft wide.

Who owns City Street (ramp) over Chippewa?

It is owned by the City or Municipal Highway Agency.