US Bridges

Harrison Ave over S.E. Drainage Way

Fair

Winnebago County, Illinois · At 20th Street · Structure no. 101500600000000

Built
1956
69 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
48 ft
2 main spans
Daily traffic
16,100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harrison Ave over S.E. Drainage Way is a concrete culvert carrying Harrison Ave over S.E. Drainage Way in Winnebago County, Illinois. It was built in 1956, so it is 69 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 16,100 vehicles a day, roughly 6% of them trucks, projected to reach 6,464 by 2046. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHarrison Ave
CrossesS.E. Drainage Way
LocationAt 20th Street
CountyWinnebago County
StateIllinois
Coordinates42.2379, -89.05763
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length48 ft (14.6 m)
Longest span22 ft (6.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,100 (2022)
Projected traffic6,464 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 S.E. Drainage Way built?

It was built in 1956, making it 69 years old in 2025.

What condition is Harrison Ave over S.E. Drainage Way 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 August 2023.

How much traffic does Harrison Ave over S.E. Drainage Way carry?

About 16,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Harrison Ave over S.E. Drainage Way?

The structure is 48 ft (14.6 m) long with a longest span of 22 ft (6.6 m).

Who owns Harrison Ave over S.E. Drainage Way?

It is owned by the City or Municipal Highway Agency.