US Bridges

Hudson DR over Delwood CR

FairPosted for load

St. Louis County, Missouri · S 1 T 46 N R 6 E · Structure no. 15668

Built
1920
105 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
2,924
2024 count
Owner
County
County Highway Agency

About this bridge

Hudson DR over Delwood CR is a concrete culvert carrying Hudson DR over Delwood CR in St. Louis County, Missouri. It was built in 1920, so it is 105 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 2,924 vehicles a day, roughly 1% of them trucks, projected to reach 3,947 by 2044. The structure is 22 ft (6.7 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHudson DR
CrossesDelwood CR
LocationS 1 T 46 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.76051, -90.28321
Functional classUrban Collector

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating38.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadOther
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width36 ft (11 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,924 (2024)
Projected traffic3,947 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$153,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hudson DR over Delwood CR built?

It was built in 1920, making it 105 years old in 2025.

What condition is Hudson DR 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 Hudson DR over Delwood CR carry?

About 2,924 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Hudson DR over Delwood CR?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 36 ft wide.

Who owns Hudson DR over Delwood CR?

It is owned by the County Highway Agency.