US Bridges

County RD 183 over Clark Br

Good

Callaway County, Missouri · S 1 T 48 N R 7 W · Structure no. 23561

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
115 ft
3 main spans
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 183 over Clark Br is a prestressed concrete tee beam carrying County RD 183 over Clark Br in Callaway County, Missouri. It was built in 1986, so it is 39 years old, younger 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 45 vehicles a day, roughly 5% of them trucks, projected to reach 68 by 2043. The structure is 115 ft (35.1 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty RD 183
CrossesClark Br
LocationS 1 T 48 N R 7 W
RouteCounty Highway 415
CountyCallaway County
StateMissouri
Coordinates38.96843, -91.7505
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length115 ft (35.1 m)
Longest span39 ft (11.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic68 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD 183 over Clark Br built?

It was built in 1986, making it 39 years old in 2025.

What condition is County RD 183 over Clark 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 October 2024.

How much traffic does County RD 183 over Clark Br carry?

About 45 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is County RD 183 over Clark Br?

The structure is 115 ft (35.1 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns County RD 183 over Clark Br?

It is owned by the County Highway Agency.