US Bridges

W Watson RD over Trib B

GoodPosted for load

St. Louis County, Missouri · S 23 T 44 N R 5 E · Structure no. 33433

Built
2012
13 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
600
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Watson RD over Trib B is a concrete continuous culvert carrying W Watson RD over Trib B in St. Louis County, Missouri. It was built in 2012, so it is 13 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 600 vehicles a day, roughly 2% of them trucks, projected to reach 810 by 2043. The structure is 31 ft (9.6 m) long and 36 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesW Watson RD
CrossesTrib B
LocationS 23 T 44 N R 5 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.53619, -90.42072
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length31 ft (9.6 m)
Longest span10 ft (3 m)
Deck width36 ft (11.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic810 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was W Watson RD over Trib B built?

It was built in 2012, making it 13 years old in 2025.

What condition is W Watson RD over Trib B 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 November 2023.

How much traffic does W Watson RD over Trib B carry?

About 600 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is W Watson RD over Trib B?

The structure is 31 ft (9.6 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns W Watson RD over Trib B?

It is owned by the City or Municipal Highway Agency.