US Bridges

Roscoe RD over Unnamed Creek

Fair

Winnebago County, Illinois · At Cm&stp RR · Structure no. 101504100000000

Built
1962
63 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
8,300
2022 count
Owner
County
County Highway Agency

About this bridge

Roscoe RD over Unnamed Creek is a concrete culvert carrying Roscoe RD over Unnamed Creek in Winnebago County, Illinois. It was built in 1962, so it is 63 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 8,300 vehicles a day, roughly 3% of them trucks, projected to reach 6,767 by 2046. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRoscoe RD
CrossesUnnamed Creek
LocationAt Cm&stp RR
CountyWinnebago County
StateIllinois
Coordinates42.41236, -89.04548
Functional classUrban Minor 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 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,300 (2022)
Projected traffic6,767 by 2046
Trucks3%
Lanes on structure2
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 Roscoe RD over Unnamed Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Roscoe 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 Roscoe RD over Unnamed Creek carry?

About 8,300 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Roscoe RD over Unnamed Creek?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Roscoe RD over Unnamed Creek?

It is owned by the County Highway Agency.