US Bridges

I- 55 NB over Sunnyland Drain

Good

Will County, Illinois · 1.8 M S of US 30 · Structure no. 099001400000000

Built
1959
66 years old, rebuilt 2007
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
40,150
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 NB over Sunnyland Drain is a concrete slab carrying I- 55 NB over Sunnyland Drain in Will County, Illinois. It was built in 1959 and reconstructed in 2007, so it is 66 years old, older 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 40,150 vehicles a day, roughly 16% of them trucks, projected to reach 50,688 by 2046. The structure is 24 ft (7.2 m) long and 56 ft wide.

Location

Open in Google Maps
CarriesI- 55 NB
CrossesSunnyland Drain
Location1.8 M S of US 30
RouteInterstate 55
CountyWill County
StateIllinois
Coordinates41.56197, -88.18067
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span22 ft (6.7 m)
Deck width56 ft (17.2 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,150 (2024)
Projected traffic50,688 by 2046
Trucks16%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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- 55 NB over Sunnyland Drain built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2007.

What condition is I- 55 NB over Sunnyland Drain 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 April 2023.

How much traffic does I- 55 NB over Sunnyland Drain carry?

About 40,150 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is I- 55 NB over Sunnyland Drain?

The structure is 24 ft (7.2 m) long with a longest span of 22 ft (6.7 m) and a deck 56 ft wide.

Who owns I- 55 NB over Sunnyland Drain?

It is owned by the State Highway Agency.