US Bridges

Mo 185 S over Fourche-A-Renault

Fair

Washington County, Missouri · S 13 T 38 N R 1 E · Structure no. 9673

Built
1940
85 years old, rebuilt 2019
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
193 ft
3 main spans
Daily traffic
706
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 185 S over Fourche-A-Renault is a steel continuous stringer/multi-beam or girder carrying Mo 185 S over Fourche-A-Renault in Washington County, Missouri. It was built in 1940 and reconstructed in 2019, so it is 85 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 706 vehicles a day, roughly 12% of them trucks, projected to reach 988 by 2044. The structure is 193 ft (58.8 m) long and 27 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesMo 185 S
CrossesFourche-A-Renault
LocationS 13 T 38 N R 1 E
RouteState Highway 185
CountyWashington County
StateMissouri
Coordinates38.0127, -90.87676
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length193 ft (58.8 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic706 (2024)
Projected traffic988 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 185 S over Fourche-A-Renault built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2019.

What condition is Mo 185 S over Fourche-A-Renault 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 185 S over Fourche-A-Renault carry?

About 706 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 185 S over Fourche-A-Renault?

The structure is 193 ft (58.8 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns Mo 185 S over Fourche-A-Renault?

It is owned by the State Highway Agency.