US Bridges

Brentwood Blvd over Deer CR

GoodPosted for load

St. Louis County, Missouri · S 28 T 45 N R 6 E · Structure no. 15639

Built
1912
113 years old, rebuilt 2022
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
23,967
2024 count
Owner
County
County Highway Agency

About this bridge

Brentwood Blvd over Deer CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Brentwood Blvd over Deer CR in St. Louis County, Missouri. It was built in 1912 and reconstructed in 2022, so it is 113 years old, older 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 23,967 vehicles a day, roughly 10% of them trucks, projected to reach 32,355 by 2044. The structure is 132 ft (40.1 m) long and 80 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBrentwood Blvd
CrossesDeer CR
LocationS 28 T 45 N R 6 E
RouteCounty Highway 0
Coordinates38.60572, -90.35057
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating42.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length132 ft (40.1 m)
Longest span43 ft (13.1 m)
Deck width80 ft (24.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,967 (2024)
Projected traffic32,355 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Brentwood Blvd over Deer CR built?

It was built in 1912, making it 113 years old in 2025. It was reconstructed in 2022.

What condition is Brentwood Blvd over Deer CR 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 Brentwood Blvd over Deer CR carry?

About 23,967 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Brentwood Blvd over Deer CR?

The structure is 132 ft (40.1 m) long with a longest span of 43 ft (13.1 m) and a deck 80 ft wide.

Who owns Brentwood Blvd over Deer CR?

It is owned by the County Highway Agency.