US Bridges

Harrison Road over Stream

Fair

Winnebago County, Illinois · .9 MI N of Ill 75 · Structure no. 101202800000000

Built
1973
52 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
32 ft
3 main spans
Daily traffic
350
2023 count
Owner
State
State Highway Agency

About this bridge

Harrison Road over Stream is a steel culvert carrying Harrison Road over Stream in Winnebago County, Illinois. It was built in 1973, so it is 52 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 5 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 350 vehicles a day, roughly 5% of them trucks, projected to reach 404 by 2046. The structure is 32 ft (9.9 m) long and 21 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesHarrison Road
CrossesStream
Location.9 MI N of Ill 75
RouteCounty Highway 0
Coordinates42.44033, -89.19778
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating65.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.9 m)
Longest span14 ft (4.3 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic404 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrison Road over Stream built?

It was built in 1973, making it 52 years old in 2025.

What condition is Harrison Road over Stream 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 Road over Stream carry?

About 350 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Harrison Road over Stream?

The structure is 32 ft (9.9 m) long with a longest span of 14 ft (4.3 m) and a deck 21 ft wide.

Who owns Harrison Road over Stream?

It is owned by the State Highway Agency.