US Bridges

Rp Brentwood Blvd over Is 170

Good

St. Louis County, Missouri · S 21 T 45 N R 6 E · Structure no. 32263

Built
2008
17 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
93 ft
1 main span
Daily traffic
15,361
2024 count
Owner
State
State Highway Agency

About this bridge

Rp Brentwood Blvd over Is 170 is a prestressed concrete tee beam carrying Rp Brentwood Blvd over Is 170 in St. Louis County, Missouri. It was built in 2008, so it is 17 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.

It carries about 15,361 vehicles a day, roughly 18% of them trucks, projected to reach 19,201 by 2044. The structure is 93 ft (28.3 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRp Brentwood Blvd
CrossesIs 170
LocationS 21 T 45 N R 6 E
RouteState Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.62945, -90.34362
Functional classUrban Principal Arterial - Interstate

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.3 US tons
Inventory rating43.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span93 ft (28.3 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,361 (2024)
Projected traffic19,201 by 2044
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rp Brentwood Blvd over Is 170 built?

It was built in 2008, making it 17 years old in 2025.

What condition is Rp Brentwood Blvd over Is 170 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 October 2024.

How much traffic does Rp Brentwood Blvd over Is 170 carry?

About 15,361 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Rp Brentwood Blvd over Is 170?

The structure is 93 ft (28.3 m) long with a longest span of 93 ft (28.3 m) and a deck 39 ft wide.

Who owns Rp Brentwood Blvd over Is 170?

It is owned by the State Highway Agency.