US Bridges

Mo 135 S over Coon CR

Fair

Cooper County, Missouri · S 5 T 47 N R 18 W · Structure no. 6355

Built
1953
72 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
961
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 135 S over Coon CR is a concrete continuous culvert carrying Mo 135 S over Coon CR in Cooper County, Missouri. It was built in 1953, so it is 72 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 961 vehicles a day, roughly 13% of them trucks, projected to reach 1,297 by 2044. The structure is 23 ft (7 m) long and 38 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesMo 135 S
CrossesCoon CR
LocationS 5 T 47 N R 18 W
RouteState Highway 135
CountyCooper County
StateMissouri
Coordinates38.86146, -92.91813
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic961 (2024)
Projected traffic1,297 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Mo 135 S over Coon CR built?

It was built in 1953, making it 72 years old in 2025.

What condition is Mo 135 S over Coon 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 July 2023.

How much traffic does Mo 135 S over Coon CR carry?

About 961 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mo 135 S over Coon CR?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns Mo 135 S over Coon CR?

It is owned by the State Highway Agency.