US Bridges

Il 1 over Deer Creek

Good

Will County, Illinois · .8M S of Cook County · Structure no. 099091700000000

Built
2022
3 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
6,850
2021 count
Owner
State
State Highway Agency

About this bridge

Il 1 over Deer Creek is a concrete continuous culvert carrying Il 1 over Deer Creek in Will County, Illinois. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,850 vehicles a day, roughly 13% of them trucks, projected to reach 9,864 by 2046. The structure is 25 ft (7.5 m) long and 62 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIl 1
CrossesDeer Creek
Location.8M S of Cook County
RouteState Highway 1
Coordinates41.45869, -87.63376
Functional classUrban Other Principal 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 protection7 GoodSome minor problems.
Culvert9 ExcellentNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating90.7 US tons
Inventory rating70 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width62 ft (18.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,850 (2021)
Projected traffic9,864 by 2046
Trucks13%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 1 over Deer Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Il 1 over Deer 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 February 2024.

How much traffic does Il 1 over Deer Creek carry?

About 6,850 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Il 1 over Deer Creek?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 62 ft wide.

Who owns Il 1 over Deer Creek?

It is owned by the State Highway Agency.