US Bridges

Is 70 E over Cole CR

Fair

St. Charles County, Missouri · S 3280 T 47 N R 4 E · Structure no. 4601

Built
1953
72 years old, rebuilt 1981
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
109,398
2024 count
Owner
State
State Highway Agency

About this bridge

Is 70 E over Cole CR is a concrete continuous culvert carrying Is 70 E over Cole CR in St. Charles County, Missouri. It was built in 1953 and reconstructed in 1981, so it is 72 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.

It carries about 109,398 vehicles a day, roughly 12% of them trucks, projected to reach 185,977 by 2044. The structure is 36 ft (11 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 70 E
CrossesCole CR
LocationS 3280 T 47 N R 4 E
RouteInterstate 70
CountySt. Charles County
StateMissouri
Coordinates38.78561, -90.52905
Functional classUrban Principal Arterial - Interstate

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic109,398 (2024)
Projected traffic185,977 by 2044
Trucks12%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Is 70 E over Cole CR built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1981.

What condition is Is 70 E over Cole 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 November 2023.

How much traffic does Is 70 E over Cole CR carry?

About 109,398 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Is 70 E over Cole CR?

The structure is 36 ft (11 m) long with a longest span of 11 ft (3.4 m).

Who owns Is 70 E over Cole CR?

It is owned by the State Highway Agency.