US Bridges

Mo 8 E over Dry Br

Good

Washington County, Missouri · S 21 T 37 N R 1 W · Structure no. 5380

Built
1932
93 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
1,589
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 8 E over Dry Br is a concrete continuous culvert carrying Mo 8 E over Dry Br in Washington County, Missouri. It was built in 1932, so it is 93 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.

It carries about 1,589 vehicles a day, roughly 23% of them trucks, projected to reach 3,019 by 2044. The structure is 27 ft (8.3 m) long and 38 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

CarriesMo 8 E
CrossesDry Br
LocationS 21 T 37 N R 1 W
RouteState Highway 8
Coordinates37.9106, -91.03959
Functional classRural Principal Arterial - Other

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.2 US tons
Inventory rating56.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length27 ft (8.3 m)
Longest span8 ft (2.4 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,589 (2024)
Projected traffic3,019 by 2044
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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 Dry Br built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mo 8 E over Dry Br 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 June 2024.

How much traffic does Mo 8 E over Dry Br carry?

About 1,589 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is Mo 8 E over Dry Br?

The structure is 27 ft (8.3 m) long with a longest span of 8 ft (2.4 m) and a deck 38 ft wide.

Who owns Mo 8 E over Dry Br?

It is owned by the State Highway Agency.