US Bridges

Irene RD over I 90

Good

Boone County, Illinois · .5 MI S US 20 · Structure no. 004995400000000

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
236 ft
2 main spans
Daily traffic
1,650
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Irene RD over I 90 is a steel continuous stringer/multi-beam or girder carrying Irene RD over I 90 in Boone County, Illinois. It was built in 2013, so it is 12 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 1,650 vehicles a day, roughly 24% of them trucks, projected to reach 1,768 by 2046. The structure is 236 ft (72 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIrene RD
CrossesI 90
Location.5 MI S US 20
RouteCounty Highway 0
CountyBoone County
StateIllinois
Coordinates42.233, -88.90062
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length236 ft (72 m)
Longest span119 ft (36.2 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2023)
Projected traffic1,768 by 2046
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Irene RD over I 90 built?

It was built in 2013, making it 12 years old in 2025.

What condition is Irene RD over I 90 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 Irene RD over I 90 carry?

About 1,650 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Irene RD over I 90?

The structure is 236 ft (72 m) long with a longest span of 119 ft (36.2 m) and a deck 55 ft wide.

Who owns Irene RD over I 90?

It is owned by the State Toll Authority.