US Bridges

Bemiston Ave-Rmp D over Forest Park Pkwy

GoodPosted for load

St. Louis County, Missouri · S 15 T 45 N R 6 E · Structure no. 31790

Built
2005
20 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
1,322
2024 count
Owner
County
County Highway Agency

About this bridge

Bemiston Ave-Rmp D over Forest Park Pkwy is a prestressed concrete stringer/multi-beam or girder carrying Bemiston Ave-Rmp D over Forest Park Pkwy 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 1,322 vehicles a day, roughly 5% of them trucks, projected to reach 1,785 by 2044. The structure is 95 ft (29 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesBemiston Ave-Rmp D
CrossesForest Park Pkwy
LocationS 15 T 45 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.64599, -90.3374
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating77.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length95 ft (29 m)
Longest span91 ft (27.8 m)
Deck width30 ft (9.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,322 (2024)
Projected traffic1,785 by 2044
Trucks5%
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 Bemiston Ave-Rmp D over Forest Park Pkwy built?

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

What condition is Bemiston Ave-Rmp D over Forest Park Pkwy 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 Bemiston Ave-Rmp D over Forest Park Pkwy carry?

About 1,322 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Bemiston Ave-Rmp D over Forest Park Pkwy?

The structure is 95 ft (29 m) long with a longest span of 91 ft (27.8 m) and a deck 30 ft wide.

Who owns Bemiston Ave-Rmp D over Forest Park Pkwy?

It is owned by the County Highway Agency.