US Bridges

US 36 W over Coon CR

Fair

Livingston County, Missouri · S 11 T 57 N R 24 W · Structure no. 6346

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
127 ft
5 main spans
Daily traffic
4,678
2024 count
Owner
State
State Highway Agency

About this bridge

US 36 W over Coon CR is a concrete continuous slab carrying US 36 W over Coon CR in Livingston County, Missouri. It was built in 1955, so it is 70 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 5 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 4,678 vehicles a day, roughly 33% of them trucks, projected to reach 8,187 by 2044. The structure is 127 ft (38.7 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 36 W
CrossesCoon CR
LocationS 11 T 57 N R 24 W
RouteU.S. Route 36
CountyLivingston County
StateMissouri
Coordinates39.7743, -93.56361
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length127 ft (38.7 m)
Longest span26 ft (8 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,678 (2024)
Projected traffic8,187 by 2044
Trucks33%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 36 W over Coon CR built?

It was built in 1955, making it 70 years old in 2025.

What condition is US 36 W 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 October 2024.

How much traffic does US 36 W over Coon CR carry?

About 4,678 vehicles per day (2024 count), of which roughly 33% are trucks.

How long is US 36 W over Coon CR?

The structure is 127 ft (38.7 m) long with a longest span of 26 ft (8 m) and a deck 32 ft wide.

Who owns US 36 W over Coon CR?

It is owned by the State Highway Agency.