US Bridges

Il 40 over Drainage Ditch

Good

Whiteside County, Illinois · 0.5 Mi. S. of I-88 · Structure no. 098201800000000

Built
1993
32 years old
Condition
Good
inspected February 2022
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
6,000
2021 count
Owner
State
State Highway Agency

About this bridge

Il 40 over Drainage Ditch is a concrete culvert carrying Il 40 over Drainage Ditch in Whiteside County, Illinois. It was built in 1993, so it is 32 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 6,000 vehicles a day, roughly 15% of them trucks, projected to reach 6,060 by 2046. The structure is 23 ft (7.1 m) long and 59 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesIl 40
CrossesDrainage Ditch
Location0.5 Mi. S. of I-88
RouteState Highway 40
CountyWhiteside County
StateIllinois
Coordinates41.74293, -89.68965
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating52.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (7.1 m)
Longest span11 ft (3.5 m)
Deck width59 ft (18 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2021)
Projected traffic6,060 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Il 40 over Drainage Ditch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Il 40 over Drainage Ditch 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 February 2022.

How much traffic does Il 40 over Drainage Ditch carry?

About 6,000 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Il 40 over Drainage Ditch?

The structure is 23 ft (7.1 m) long with a longest span of 11 ft (3.5 m) and a deck 59 ft wide.

Who owns Il 40 over Drainage Ditch?

It is owned by the State Highway Agency.