US Bridges

Sappington RD over Kirkwood CR

FairPosted for load

St. Louis County, Missouri · S 7 T 44 N R 6 E · Structure no. 15696

Built
1959
66 years old, rebuilt 1975
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
14,383
2024 count
Owner
County
County Highway Agency

About this bridge

Sappington RD over Kirkwood CR is a concrete continuous culvert carrying Sappington RD over Kirkwood CR in St. Louis County, Missouri. It was built in 1959 and reconstructed in 1975, so it is 66 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. Its operating status is: posted for load restriction.

It carries about 14,383 vehicles a day, roughly 10% of them trucks, projected to reach 19,417 by 2044. The structure is 77 ft (23.5 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesSappington RD
CrossesKirkwood CR
LocationS 7 T 44 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.56238, -90.38521
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadOther
Structure length77 ft (23.5 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,383 (2024)
Projected traffic19,417 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sappington RD over Kirkwood CR built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1975.

What condition is Sappington RD over Kirkwood 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 May 2024.

How much traffic does Sappington RD over Kirkwood CR carry?

About 14,383 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Sappington RD over Kirkwood CR?

The structure is 77 ft (23.5 m) long with a longest span of 15 ft (4.6 m).

Who owns Sappington RD over Kirkwood CR?

It is owned by the County Highway Agency.