US Bridges

Harrison Ave over Madigan Creek

Fair

Winnebago County, Illinois · .2 MI E Perryvil RD · Structure no. 101201700000000

Built
1963
62 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
16,200
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harrison Ave over Madigan Creek is a concrete culvert carrying Harrison Ave over Madigan Creek in Winnebago County, Illinois. It was built in 1963, so it is 62 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 16,200 vehicles a day, roughly 6% of them trucks, projected to reach 19,190 by 2046. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesHarrison Ave
CrossesMadigan Creek
Location.2 MI E Perryvil RD
CountyWinnebago County
StateIllinois
Coordinates42.24088, -88.97693
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,200 (2022)
Projected traffic19,190 by 2046
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Harrison Ave over Madigan Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Harrison Ave over Madigan Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Harrison Ave over Madigan Creek carry?

About 16,200 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Harrison Ave over Madigan Creek?

The structure is 28 ft (8.4 m) long with a longest span of 9 ft (2.8 m).

Who owns Harrison Ave over Madigan Creek?

It is owned by the City or Municipal Highway Agency.