US Bridges

Chambers RD over Delwood CR

FairPosted for load

St. Louis County, Missouri · S 1 T 46 N R 6 E · Structure no. 15669

Built
1979
46 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
10,107
2024 count
Owner
County
County Highway Agency

About this bridge

Chambers RD over Delwood CR is a concrete continuous culvert carrying Chambers RD over Delwood CR in St. Louis County, Missouri. It was built in 1979, so it is 46 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 5 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 10,107 vehicles a day, roughly 1% of them trucks, projected to reach 13,644 by 2044. The structure is 26 ft (7.9 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesChambers RD
CrossesDelwood CR
LocationS 1 T 46 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.75005, -90.23201
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating19.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,107 (2024)
Projected traffic13,644 by 2044
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Chambers RD over Delwood CR built?

It was built in 1979, making it 46 years old in 2025.

What condition is Chambers RD over Delwood 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 February 2024.

How much traffic does Chambers RD over Delwood CR carry?

About 10,107 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Chambers RD over Delwood CR?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns Chambers RD over Delwood CR?

It is owned by the County Highway Agency.