US Bridges

Rt U S over Big River

Fair

Washington County, Missouri · S 15 T 36 N R 3 E · Structure no. 308

Built
1958
67 years old, rebuilt 2009
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
329 ft
3 main spans
Daily traffic
1,124
2024 count
Owner
State
State Highway Agency

About this bridge

Rt U S over Big River is a steel continuous stringer/multi-beam or girder carrying Rt U S over Big River in Washington County, Missouri. It was built in 1958 and reconstructed in 2009, so it is 67 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 1,124 vehicles a day, roughly 8% of them trucks, projected to reach 1,574 by 2044. The structure is 329 ft (100.3 m) long and 27 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesRt U S
CrossesBig River
LocationS 15 T 36 N R 3 E
RouteState Highway 0U
Coordinates37.83021, -90.69065
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating41.7 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadH 15
Structure length329 ft (100.3 m)
Longest span100 ft (30.5 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,124 (2024)
Projected traffic1,574 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 Rt U S over Big River built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2009.

What condition is Rt U S over Big River 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 Rt U S over Big River carry?

About 1,124 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Rt U S over Big River?

The structure is 329 ft (100.3 m) long with a longest span of 100 ft (30.5 m) and a deck 27 ft wide.

Who owns Rt U S over Big River?

It is owned by the State Highway Agency.