US Bridges

Il 7 over I & M Canal

Good

Will County, Illinois · 0.2 M W of Il 171 · Structure no. 099013700000000

Built
1951
74 years old, rebuilt 2002
Condition
Good
inspected April 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
132 ft
3 main spans
Daily traffic
24,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 7 over I & M Canal is a steel continuous stringer/multi-beam or girder carrying Il 7 over I & M Canal in Will County, Illinois. It was built in 1951 and reconstructed in 2002, so it is 74 years old, older 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 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 24,400 vehicles a day, roughly 8% of them trucks, projected to reach 29,952 by 2046. The structure is 132 ft (40.1 m) long and 52 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIl 7
CrossesI & M Canal
Location0.2 M W of Il 171
RouteState Highway 7
CountyWill County
StateIllinois
Coordinates41.58979, -88.05901
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.9 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length132 ft (40.1 m)
Longest span52 ft (15.8 m)
Deck width52 ft (15.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,400 (2023)
Projected traffic29,952 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$983,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 7 over I & M Canal built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2002.

What condition is Il 7 over I & M Canal 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 April 2021.

How much traffic does Il 7 over I & M Canal carry?

About 24,400 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il 7 over I & M Canal?

The structure is 132 ft (40.1 m) long with a longest span of 52 ft (15.8 m) and a deck 52 ft wide.

Who owns Il 7 over I & M Canal?

It is owned by the State Highway Agency.