US Bridges

Kilbuck Bluff Fp over Br Kilbuck CR

PoorPosted for load

Winnebago County, Illinois · By Kilbuck Creek · Structure no. 101502300000000

Built
1926
99 years old
Condition
Poor
inspected March 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
475
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Kilbuck Bluff Fp over Br Kilbuck CR is a concrete culvert carrying Kilbuck Bluff Fp over Br Kilbuck CR in Winnebago County, Illinois. It was built in 1926, so it is 99 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 475 vehicles a day, roughly 7% of them trucks, projected to reach 530 by 2046. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKilbuck Bluff Fp
CrossesBr Kilbuck CR
LocationBy Kilbuck Creek
RouteCounty Highway 0
CountyWinnebago County
StateIllinois
Coordinates42.16492, -89.0999
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating15.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length31 ft (9.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2022)
Projected traffic530 by 2046
Trucks7%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Kilbuck Bluff Fp over Br Kilbuck CR built?

It was built in 1926, making it 99 years old in 2025.

What condition is Kilbuck Bluff Fp over Br Kilbuck CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Kilbuck Bluff Fp over Br Kilbuck CR carry?

About 475 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Kilbuck Bluff Fp over Br Kilbuck CR?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m).

Who owns Kilbuck Bluff Fp over Br Kilbuck CR?

It is owned by the Town or Township Highway Agency.