US Bridges

US 36 W over Puzzle CR

Fair

Macon County, Missouri · S 12 T 57 N R 17 W · Structure no. 4742

Built
1924
101 years old, rebuilt 2001
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
9,809
2024 count
Owner
State
State Highway Agency

About this bridge

US 36 W over Puzzle CR is a concrete continuous culvert carrying US 36 W over Puzzle CR in Macon County, Missouri. It was built in 1924 and reconstructed in 2001, so it is 101 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 9,809 vehicles a day, roughly 43% of them trucks, projected to reach 17,166 by 2044. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 36 W
CrossesPuzzle CR
LocationS 12 T 57 N R 17 W
RouteU.S. Route 36
Coordinates39.76534, -92.76056
Functional classRural Principal Arterial - Other

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.3 US tons
Inventory rating54.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,809 (2024)
Projected traffic17,166 by 2044
Trucks43%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 36 W over Puzzle CR built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 2001.

What condition is US 36 W over Puzzle 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 September 2023.

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

About 9,809 vehicles per day (2024 count), of which roughly 43% are trucks.

How long is US 36 W over Puzzle CR?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns US 36 W over Puzzle CR?

It is owned by the State Highway Agency.