US Bridges

Mo 1 S over Br of Mill CR

Fair

Clay County, Missouri · S 30 T 51 N R 32 W · Structure no. 1692

Built
1967
58 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
26,196
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 1 S over Br of Mill CR is a concrete continuous culvert carrying Mo 1 S over Br of Mill CR in Clay County, Missouri. It was built in 1967, so it is 58 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 26,196 vehicles a day, roughly 11% of them trucks, projected to reach 41,914 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 14.9 mi (24 km).

CarriesMo 1 S
CrossesBr of Mill CR
LocationS 30 T 51 N R 32 W
RouteState Highway 1
Coordinates39.19601, -94.54866
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 rating97.2 US tons
Inventory rating58.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 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 traffic26,196 (2024)
Projected traffic41,914 by 2044
Trucks11%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Mo 1 S over Br of Mill CR built?

It was built in 1967, making it 58 years old in 2025.

What condition is Mo 1 S over Br of Mill 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 November 2024.

How much traffic does Mo 1 S over Br of Mill CR carry?

About 26,196 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Mo 1 S over Br of Mill CR?

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

Who owns Mo 1 S over Br of Mill CR?

It is owned by the State Highway Agency.