US Bridges

Larry Power RD/400 over I-57 NB & SB

Good

Kankakee County, Illinois · 1.2 MI N./Il 50 JCT · Structure no. 046015100000000

Built
2020
5 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
215 ft
2 main spans
Daily traffic
6,050
2021 count
Owner
State
State Highway Agency

About this bridge

Larry Power RD/400 over I-57 NB & SB is a steel continuous stringer/multi-beam or girder carrying Larry Power RD/400 over I-57 NB & SB in Kankakee County, Illinois. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,050 vehicles a day, roughly 3% of them trucks, projected to reach 6,171 by 2046. The structure is 215 ft (65.5 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLarry Power RD/400
CrossesI-57 NB & SB
Location1.2 MI N./Il 50 JCT
CountyKankakee County
StateIllinois
Coordinates41.17722, -87.86587
Functional classUrban Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length215 ft (65.5 m)
Longest span108 ft (32.8 m)
Deck width52 ft (15.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,050 (2021)
Projected traffic6,171 by 2046
Trucks3%
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 Highway Agency
Maintained byState Highway Agency
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 Larry Power RD/400 over I-57 NB & SB built?

It was built in 2020, making it 5 years old in 2025.

What condition is Larry Power RD/400 over I-57 NB & SB 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 January 2025.

How much traffic does Larry Power RD/400 over I-57 NB & SB carry?

About 6,050 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Larry Power RD/400 over I-57 NB & SB?

The structure is 215 ft (65.5 m) long with a longest span of 108 ft (32.8 m) and a deck 52 ft wide.

Who owns Larry Power RD/400 over I-57 NB & SB?

It is owned by the State Highway Agency.