US Bridges

Dougherty Ferry RD over Des Peres CR

FairPosted for load

St. Louis County, Missouri · S 4 T 44 N R 5 E · Structure no. 15690

Built
1991
34 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
28,843
2024 count
Owner
County
County Highway Agency

About this bridge

Dougherty Ferry RD over Des Peres CR is a concrete culvert carrying Dougherty Ferry RD over Des Peres CR in St. Louis County, Missouri. It was built in 1991, so it is 34 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 28,843 vehicles a day, roughly 10% of them trucks, projected to reach 38,938 by 2044. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesDougherty Ferry RD
CrossesDes Peres CR
LocationS 4 T 44 N R 5 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.58003, -90.45453
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 inspectionApril 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadOther
Structure length31 ft (9.4 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,843 (2024)
Projected traffic38,938 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Dougherty Ferry RD over Des Peres CR built?

It was built in 1991, making it 34 years old in 2025.

What condition is Dougherty Ferry RD over Des Peres 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 April 2024.

How much traffic does Dougherty Ferry RD over Des Peres CR carry?

About 28,843 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Dougherty Ferry RD over Des Peres CR?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.5 m).

Who owns Dougherty Ferry RD over Des Peres CR?

It is owned by the County Highway Agency.