US Bridges

Washington ST over Br of Cold Water C

PoorPosted for load

St. Louis County, Missouri · S 27 T 47 N R 6 E · Structure no. 15555

Built
1963
62 years old, rebuilt 1987
Condition
Poor
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
7,794
2024 count
Owner
County
County Highway Agency

About this bridge

Washington ST over Br of Cold Water C is a prestressed concrete box beam or girders - multiple carrying Washington ST over Br of Cold Water C in St. Louis County, Missouri. It was built in 1963 and reconstructed in 1987, so it is 62 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 7,794 vehicles a day, roughly 5% of them trucks, projected to reach 10,522 by 2044. The structure is 35 ft (10.7 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWashington ST
CrossesBr of Cold Water C
LocationS 27 T 47 N R 6 E
RouteCounty Highway 0
Coordinates38.78458, -90.31768
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 rating88.3 US tons
Inventory rating48.6 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span35 ft (10.7 m)
Deck width35 ft (10.7 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,794 (2024)
Projected traffic10,522 by 2044
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$840,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington ST over Br of Cold Water C built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1987.

What condition is Washington ST over Br of Cold Water C in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does Washington ST over Br of Cold Water C carry?

About 7,794 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Washington ST over Br of Cold Water C?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.7 m) and a deck 35 ft wide.

Who owns Washington ST over Br of Cold Water C?

It is owned by the County Highway Agency.