US Bridges

Mo 8 E over Race CR

Fair

Washington County, Missouri · S 21 T 37 N R 1 E · Structure no. 4511

Built
1922
103 years old, rebuilt 1965
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
41 ft
2 main spans
Daily traffic
3,815
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 8 E over Race CR is a concrete continuous culvert carrying Mo 8 E over Race CR in Washington County, Missouri. It was built in 1922 and reconstructed in 1965, so it is 103 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,815 vehicles a day, roughly 15% of them trucks, projected to reach 7,249 by 2044. The structure is 41 ft (12.4 m) long. If it were closed, the detour would be 24.2 mi (39 km).

CarriesMo 8 E
CrossesRace CR
LocationS 21 T 37 N R 1 E
RouteState Highway 8
Coordinates37.9134, -90.92631
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length41 ft (12.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,815 (2024)
Projected traffic7,249 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 8 E over Race CR built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1965.

What condition is Mo 8 E over Race CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Mo 8 E over Race CR carry?

About 3,815 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Mo 8 E over Race CR?

The structure is 41 ft (12.4 m) long with a longest span of 14 ft (4.3 m).

Who owns Mo 8 E over Race CR?

It is owned by the State Highway Agency.