US Bridges

Is 64 E over Missouri Rvr Katy Trail

Good

St. Charles County, Missouri · S 35 T 46 N R 3 E · Structure no. 34492

Built
2013
12 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,619 ft
3 main spans
Daily traffic
37,898
2024 count
Owner
State
State Highway Agency

About this bridge

Is 64 E over Missouri Rvr Katy Trail is a steel continuous stringer/multi-beam or girder carrying Is 64 E over Missouri Rvr Katy Trail in St. Charles County, Missouri. It was built in 2013, so it is 12 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 37,898 vehicles a day, roughly 11% of them trucks, projected to reach 64,427 by 2044. The structure is 2,619 ft (798.3 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 64 E
CrossesMissouri Rvr Katy Trail
LocationS 35 T 46 N R 3 E
RouteInterstate 64
CountySt. Charles County
StateMissouri
Coordinates38.68739, -90.66327
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+8 approach)
Design loadHL 93
Structure length2,619 ft (798.3 m)
Longest span510 ft (155.4 m)
Deck width78 ft (23.7 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,898 (2024)
Projected traffic64,427 by 2044
Trucks11%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Is 64 E over Missouri Rvr Katy Trail built?

It was built in 2013, making it 12 years old in 2025.

What condition is Is 64 E over Missouri Rvr Katy Trail in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Is 64 E over Missouri Rvr Katy Trail carry?

About 37,898 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Is 64 E over Missouri Rvr Katy Trail?

The structure is 2,619 ft (798.3 m) long with a longest span of 510 ft (155.4 m) and a deck 78 ft wide.

Who owns Is 64 E over Missouri Rvr Katy Trail?

It is owned by the State Highway Agency.