US Bridges

Edmundson RD over Coldwater CR

FairPosted for load

St. Louis County, Missouri · S 20 T 46 N R 6 E · Structure no. 13938

Built
1984
41 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Edmundson RD over Coldwater CR is a concrete continuous culvert carrying Edmundson RD over Coldwater CR in St. Louis County, Missouri. It was built in 1984, so it is 41 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 400 vehicles a day, roughly 1% of them trucks, projected to reach 540 by 2043. The structure is 43 ft (13.1 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesEdmundson RD
CrossesColdwater CR
LocationS 20 T 46 N R 6 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.71731, -90.36452
Functional classUrban Local

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.8 US tons
Inventory rating18.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span16 ft (4.9 m)
Deck width42 ft (12.7 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic540 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Edmundson RD over Coldwater CR built?

It was built in 1984, making it 41 years old in 2025.

What condition is Edmundson RD over Coldwater 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 December 2023.

How much traffic does Edmundson RD over Coldwater CR carry?

About 400 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Edmundson RD over Coldwater CR?

The structure is 43 ft (13.1 m) long with a longest span of 16 ft (4.9 m) and a deck 42 ft wide.

Who owns Edmundson RD over Coldwater CR?

It is owned by the City or Municipal Highway Agency.