US Bridges

Park Access RD over Rock Cut Spillway

Good

Winnebago County, Illinois · Rock Cut ST Park · Structure no. 101997400000000

Built
2019
6 years old
Condition
Good
inspected October 2022
Type
Box Beam or Girders - Multiple
Concrete
Length
160 ft
3 main spans
Daily traffic
775
2022 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Park Access RD over Rock Cut Spillway is a concrete box beam or girders - multiple carrying Park Access RD over Rock Cut Spillway in Winnebago County, Illinois. It was built in 2019, so it is 6 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 775 vehicles a day, roughly 7% of them trucks, projected to reach 775 by 2046. The structure is 160 ft (48.8 m) long and 39 ft wide.

Location

Open in Google Maps
CarriesPark Access RD
CrossesRock Cut Spillway
LocationRock Cut ST Park
CountyWinnebago County
StateIllinois
Coordinates42.34671, -88.98709
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.4 US tons
Inventory rating59 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length160 ft (48.8 m)
Longest span64 ft (19.5 m)
Deck width39 ft (11.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2022)
Projected traffic775 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Park Access RD over Rock Cut Spillway built?

It was built in 2019, making it 6 years old in 2025.

What condition is Park Access RD over Rock Cut Spillway 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 October 2022.

How much traffic does Park Access RD over Rock Cut Spillway carry?

About 775 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Park Access RD over Rock Cut Spillway?

The structure is 160 ft (48.8 m) long with a longest span of 64 ft (19.5 m) and a deck 39 ft wide.

Who owns Park Access RD over Rock Cut Spillway?

It is owned by the State Park, Forest, or Reservation Agency.