US Bridges

Prairie Hill RD over Dry Creek Run

Good

Winnebago County, Illinois · At Willowbrook RD · Structure no. 101515500000000

Built
2007
18 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete
Length
136 ft
7 main spans
Daily traffic
4,050
2022 count
Owner
County
County Highway Agency

About this bridge

Prairie Hill RD over Dry Creek Run is a concrete culvert carrying Prairie Hill RD over Dry Creek Run in Winnebago 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 4,050 vehicles a day, roughly 7% of them trucks, projected to reach 3,232 by 2046. The structure is 136 ft (41.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesPrairie Hill RD
CrossesDry Creek Run
LocationAt Willowbrook RD
Coordinates42.47133, -89.00062
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.8 US tons
Inventory rating51.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadHS 20 + Mod
Structure length136 ft (41.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,050 (2022)
Projected traffic3,232 by 2046
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Prairie Hill RD over Dry Creek Run built?

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

What condition is Prairie Hill RD over Dry Creek Run 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 July 2021.

How much traffic does Prairie Hill RD over Dry Creek Run carry?

About 4,050 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Prairie Hill RD over Dry Creek Run?

The structure is 136 ft (41.5 m) long with a longest span of 13 ft (4 m).

Who owns Prairie Hill RD over Dry Creek Run?

It is owned by the County Highway Agency.