US Bridges

Rt O E over Koen CR

Good

St. Francois County, Missouri · S 9 T 36 N R 5 E · Structure no. 1961

Built
1968
57 years old, rebuilt 2009
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
137 ft
3 main spans
Daily traffic
2,451
2024 count
Owner
State
State Highway Agency

About this bridge

Rt O E over Koen CR is a steel continuous stringer/multi-beam or girder carrying Rt O E over Koen CR in St. Francois County, Missouri. It was built in 1968 and reconstructed in 2009, so it is 57 years old, older 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 2,451 vehicles a day, roughly 11% of them trucks, projected to reach 3,922 by 2044. The structure is 137 ft (41.8 m) long and 39 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesRt O E
CrossesKoen CR
LocationS 9 T 36 N R 5 E
RouteState Highway 0O
Coordinates37.84895, -90.48096
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.7 US tons
Inventory rating20.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length137 ft (41.8 m)
Longest span52 ft (15.8 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,451 (2024)
Projected traffic3,922 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

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 Rt O E over Koen CR built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2009.

What condition is Rt O E over Koen CR 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 October 2024.

How much traffic does Rt O E over Koen CR carry?

About 2,451 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt O E over Koen CR?

The structure is 137 ft (41.8 m) long with a longest span of 52 ft (15.8 m) and a deck 39 ft wide.

Who owns Rt O E over Koen CR?

It is owned by the State Highway Agency.