US Bridges

Perryville Road over I-39

Good

Winnebago County, Illinois · .75 S Harrison Ave · Structure no. 101020600000000

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
354 ft
2 main spans
Daily traffic
7,450
2022 count
Owner
State
State Highway Agency

About this bridge

Perryville Road over I-39 is a steel continuous stringer/multi-beam or girder carrying Perryville Road over I-39 in Winnebago County, Illinois. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,450 vehicles a day, roughly 5% of them trucks, projected to reach 7,979 by 2043. The structure is 354 ft (107.9 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesPerryville Road
CrossesI-39
Location.75 S Harrison Ave
CountyWinnebago County
StateIllinois
Coordinates42.22657, -88.97943
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating59.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length354 ft (107.9 m)
Longest span174 ft (53 m)
Deck width49 ft (14.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,450 (2022)
Projected traffic7,979 by 2043
Trucks5%
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 Perryville Road over I-39 built?

It was built in 2023, making it 2 years old in 2025.

What condition is Perryville Road over I-39 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 December 2023.

How much traffic does Perryville Road over I-39 carry?

About 7,450 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Perryville Road over I-39?

The structure is 354 ft (107.9 m) long with a longest span of 174 ft (53 m) and a deck 49 ft wide.

Who owns Perryville Road over I-39?

It is owned by the State Highway Agency.