US Bridges

US 6 over Rock Run Creek

Good

Will County, Illinois · 1.3 M E I-55 · Structure no. 099464000000000

Built
2003
22 years old
Condition
Good
inspected November 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
212 ft
3 main spans
Daily traffic
10,250
2023 count
Owner
State
State Highway Agency

About this bridge

US 6 over Rock Run Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 6 over Rock Run Creek in Will County, Illinois. It was built in 2003, so it is 22 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 10,250 vehicles a day, roughly 21% of them trucks, projected to reach 13,392 by 2046. The structure is 212 ft (64.6 m) long and 47 ft wide.

CarriesUS 6
CrossesRock Run Creek
Location1.3 M E I-55
RouteU.S. Route 6
Coordinates41.47763, -88.16578
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span75 ft (23 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,250 (2023)
Projected traffic13,392 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 6 over Rock Run Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is US 6 over Rock Run Creek 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 November 2021.

How much traffic does US 6 over Rock Run Creek carry?

About 10,250 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 6 over Rock Run Creek?

The structure is 212 ft (64.6 m) long with a longest span of 75 ft (23 m) and a deck 47 ft wide.

Who owns US 6 over Rock Run Creek?

It is owned by the State Highway Agency.