US Bridges

Kehrs Mill Road over Br of Shotwell CR

FairPosted for load

St. Louis County, Missouri · S 20 T 45 N R 4 E · Structure no. 15707

Built
1993
32 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
35 ft
3 main spans
Daily traffic
6,849
2024 count
Owner
County
County Highway Agency

About this bridge

Kehrs Mill Road over Br of Shotwell CR is a concrete continuous culvert carrying Kehrs Mill Road over Br of Shotwell CR in St. Louis County, Missouri. It was built in 1993, so it is 32 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 6,849 vehicles a day, roughly 2% of them trucks, projected to reach 9,246 by 2044. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesKehrs Mill Road
CrossesBr of Shotwell CR
LocationS 20 T 45 N R 4 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.62365, -90.58908
Functional classUrban Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating72.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,849 (2024)
Projected traffic9,246 by 2044
Trucks2%
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 Kehrs Mill Road over Br of Shotwell CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Kehrs Mill Road over Br of Shotwell 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 March 2024.

How much traffic does Kehrs Mill Road over Br of Shotwell CR carry?

About 6,849 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Kehrs Mill Road over Br of Shotwell CR?

The structure is 35 ft (10.7 m) long with a longest span of 9 ft (2.7 m).

Who owns Kehrs Mill Road over Br of Shotwell CR?

It is owned by the County Highway Agency.