US Bridges

I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp

Good

Will County, Illinois · 1 M W of Lemont RD · Structure no. 099040000000000

Built
2007
18 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
2 main spans
Daily traffic
28,200
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp is a steel continuous stringer/multi-beam or girder carrying I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp in Will County, Illinois. It was built in 2007, so it is 18 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 28,200 vehicles a day, roughly 10% of them trucks, projected to reach 40,464 by 2046. The structure is 275 ft (83.8 m) long and 43 ft wide.

CarriesI- 55 NB Rmp I-355
CrossesJolet RD & Ent Rmp
Location1 M W of Lemont RD
Coordinates41.69879, -88.04074
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 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 rating80 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length275 ft (83.8 m)
Longest span97 ft (29.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,200 (2024)
Projected traffic40,464 by 2046
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp built?

It was built in 2007, making it 18 years old in 2025.

What condition is I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp 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 May 2023.

How much traffic does I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp carry?

About 28,200 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp?

The structure is 275 ft (83.8 m) long with a longest span of 97 ft (29.5 m) and a deck 43 ft wide.

Who owns I- 55 NB Rmp I-355 over Jolet RD & Ent Rmp?

It is owned by the State Highway Agency.