US Bridges

I-80 WB Exit Ramp over Collins Run

Good

Grundy County, Illinois · NE Quad I-80/BRISBIN · Structure no. 032011800000000

Built
2011
14 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
1,350
2019 count
Owner
State
State Highway Agency

About this bridge

I-80 WB Exit Ramp over Collins Run is a prestressed concrete stringer/multi-beam or girder carrying I-80 WB Exit Ramp over Collins Run in Grundy County, Illinois. It was built in 2011, so it is 14 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 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 1,350 vehicles a day, roughly 39% of them trucks, projected to reach 1,620 by 2046. The structure is 103 ft (31.5 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-80 WB Exit Ramp
CrossesCollins Run
LocationNE Quad I-80/BRISBIN
CountyGrundy County
StateIllinois
Coordinates41.42307, -88.36172
Functional classUrban Principal Arterial - Interstate

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating70.8 US tons
Inventory rating54.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length103 ft (31.5 m)
Longest span100 ft (30.6 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2019)
Projected traffic1,620 by 2046
Trucks39%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 I-80 WB Exit Ramp over Collins Run built?

It was built in 2011, making it 14 years old in 2025.

What condition is I-80 WB Exit Ramp over Collins Run 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 March 2023.

How much traffic does I-80 WB Exit Ramp over Collins Run carry?

About 1,350 vehicles per day (2019 count), of which roughly 39% are trucks.

How long is I-80 WB Exit Ramp over Collins Run?

The structure is 103 ft (31.5 m) long with a longest span of 100 ft (30.6 m) and a deck 29 ft wide.

Who owns I-80 WB Exit Ramp over Collins Run?

It is owned by the State Highway Agency.