US Bridges

Johnson RD over I 90

Good

Boone County, Illinois · .5 MI S Chrysler DR · Structure no. 004992200000000

Built
2014
11 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
150
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Johnson RD over I 90 is a concrete continuous stringer/multi-beam or girder carrying Johnson RD over I 90 in Boone County, Illinois. It was built in 2014, so it is 11 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 150 vehicles a day, roughly 27% of them trucks, projected to reach 156 by 2046. The structure is 240 ft (73 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesJohnson RD
CrossesI 90
Location.5 MI S Chrysler DR
RouteCounty Highway 0
Coordinates42.23364, -88.78839
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length240 ft (73 m)
Longest span120 ft (36.5 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic156 by 2046
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Johnson RD over I 90 built?

It was built in 2014, making it 11 years old in 2025.

What condition is Johnson 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 July 2023.

How much traffic does Johnson RD over I 90 carry?

About 150 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is Johnson RD over I 90?

The structure is 240 ft (73 m) long with a longest span of 120 ft (36.5 m) and a deck 35 ft wide.

Who owns Johnson RD over I 90?

It is owned by the State Toll Authority.