US Bridges

Blackwood Road over Br. Kilbuck Creek

Good

Ogle County, Illinois · 3 Mi. SW Monroe Ctr. · Structure no. 071508600000000

Built
1989
36 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
75
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Blackwood Road over Br. Kilbuck Creek is a concrete culvert carrying Blackwood Road over Br. Kilbuck Creek in Ogle County, Illinois. It was built in 1989, so it is 36 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, projected to reach 78 by 2046. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBlackwood Road
CrossesBr. Kilbuck Creek
Location3 Mi. SW Monroe Ctr.
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates42.08956, -89.05642
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 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 traffic75 (2017)
Projected traffic78 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Blackwood Road over Br. Kilbuck Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Blackwood Road over Br. Kilbuck Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does Blackwood Road over Br. Kilbuck Creek carry?

About 75 vehicles per day (2017 count).

How long is Blackwood Road over Br. Kilbuck Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Blackwood Road over Br. Kilbuck Creek?

It is owned by the Town or Township Highway Agency.