US Bridges

Dubois-Oakdale RD over Beaucoup Creek

Good

Washington County, Illinois · 3.7MI East JCT 127 · Structure no. 095007100000000

Built
1996
29 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
1,200
2024 count
Owner
State
State Highway Agency

About this bridge

Dubois-Oakdale RD over Beaucoup Creek is a prestressed concrete stringer/multi-beam or girder carrying Dubois-Oakdale RD over Beaucoup Creek in Washington County, Illinois. It was built in 1996, so it is 29 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,200 vehicles a day, roughly 11% of them trucks, projected to reach 1,271 by 2046. The structure is 165 ft (50.2 m) long and 33 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

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CarriesDubois-Oakdale RD
CrossesBeaucoup Creek
Location3.7MI East JCT 127
RouteCounty Highway 0
CountyWashington County
StateIllinois
Coordinates38.22828, -89.31186
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: 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 rating74 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length165 ft (50.2 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2024)
Projected traffic1,271 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 Dubois-Oakdale RD over Beaucoup Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Dubois-Oakdale RD over Beaucoup Creek 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 June 2023.

How much traffic does Dubois-Oakdale RD over Beaucoup Creek carry?

About 1,200 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Dubois-Oakdale RD over Beaucoup Creek?

The structure is 165 ft (50.2 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns Dubois-Oakdale RD over Beaucoup Creek?

It is owned by the State Highway Agency.