US Bridges

S Central Av-Rmp C over Forest Park Pkwy Shaw P

GoodPosted for load

St. Louis County, Missouri · S 15 T 45 N R 6 E · Structure no. 31789

Built
2005
20 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
476 ft
5 main spans
Daily traffic
7,797
2024 count
Owner
County
County Highway Agency

About this bridge

S Central Av-Rmp C over Forest Park Pkwy Shaw P is a steel continuous stringer/multi-beam or girder carrying S Central Av-Rmp C over Forest Park Pkwy Shaw P in St. Louis County, Missouri. It was built in 2005, so it is 20 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 7,797 vehicles a day, roughly 1% of them trucks, projected to reach 10,526 by 2044. The structure is 476 ft (145 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesS Central Av-Rmp C
CrossesForest Park Pkwy Shaw P
LocationS 15 T 45 N R 6 E
RouteCounty Highway 0
Coordinates38.6457, -90.33895
Functional classUrban Other Principal 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.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.2 US tons
Inventory rating63.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length476 ft (145 m)
Longest span102 ft (31.1 m)
Deck width25 ft (7.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,797 (2024)
Projected traffic10,526 by 2044
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 S Central Av-Rmp C over Forest Park Pkwy Shaw P built?

It was built in 2005, making it 20 years old in 2025.

What condition is S Central Av-Rmp C over Forest Park Pkwy Shaw P 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 April 2024.

How much traffic does S Central Av-Rmp C over Forest Park Pkwy Shaw P carry?

About 7,797 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is S Central Av-Rmp C over Forest Park Pkwy Shaw P?

The structure is 476 ft (145 m) long with a longest span of 102 ft (31.1 m) and a deck 25 ft wide.

Who owns S Central Av-Rmp C over Forest Park Pkwy Shaw P?

It is owned by the County Highway Agency.