US Bridges

County RD SW 400 over Clear CR

Fair

St. Clair County, Missouri · S 13 T 37 N R 28 W · Structure no. 34394

Built
2014
11 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
133 ft
2 main spans
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

County RD SW 400 over Clear CR is a steel continuous stringer/multi-beam or girder carrying County RD SW 400 over Clear CR in St. Clair County, Missouri. It was built in 2014, so it is 11 years old, younger 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2043. The structure is 133 ft (40.5 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty RD SW 400
CrossesClear CR
LocationS 13 T 37 N R 28 W
RouteCounty Highway 262
CountySt. Clair County
StateMissouri
Coordinates37.97174, -93.95582
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating79.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length133 ft (40.5 m)
Longest span66 ft (20.2 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic12 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD SW 400 over Clear CR built?

It was built in 2014, making it 11 years old in 2025.

What condition is County RD SW 400 over Clear 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 December 2023.

How much traffic does County RD SW 400 over Clear CR carry?

About 10 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD SW 400 over Clear CR?

The structure is 133 ft (40.5 m) long with a longest span of 66 ft (20.2 m) and a deck 20 ft wide.

Who owns County RD SW 400 over Clear CR?

It is owned by the County Highway Agency.