US Bridges

Old River RD over Unnamed Creek

Fair

Winnebago County, Illinois · .5 MI N of Roscoe RD · Structure no. 101511000000000

Built
1967
58 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
2,900
2022 count
Owner
County
County Highway Agency

About this bridge

Old River RD over Unnamed Creek is a concrete culvert carrying Old River RD over Unnamed Creek in Winnebago County, Illinois. It was built in 1967, so it is 58 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 2,900 vehicles a day, roughly 3% of them trucks, projected to reach 2,424 by 2046. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesOld River RD
CrossesUnnamed Creek
Location.5 MI N of Roscoe RD
Coordinates42.41934, -89.0598
Functional classUrban 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 rating81.8 US tons
Inventory rating48.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic2,424 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Old River RD over Unnamed Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Old River RD over Unnamed 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 April 2024.

How much traffic does Old River RD over Unnamed Creek carry?

About 2,900 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Old River RD over Unnamed Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m).

Who owns Old River RD over Unnamed Creek?

It is owned by the County Highway Agency.