US Bridges

Mulford RD over Kilbuck CR

Poor

Ogle County, Illinois · 2.5 MI SE Lindenwood · Structure no. 071323100000000

Built
1979
46 years old
Condition
Poor
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
85 ft
2 main spans
Daily traffic
750
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mulford RD over Kilbuck CR is a prestressed concrete box beam or girders - multiple carrying Mulford RD over Kilbuck CR in Ogle County, Illinois. It was built in 1979, so it is 46 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.

It carries about 750 vehicles a day, roughly 15% of them trucks, projected to reach 676 by 2046. The structure is 85 ft (26 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMulford RD
CrossesKilbuck CR
Location2.5 MI SE Lindenwood
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates42.04042, -89.00056
Functional classRural Major 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length85 ft (26 m)
Longest span41 ft (12.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2022)
Projected traffic676 by 2046
Trucks15%
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 Mulford RD over Kilbuck CR built?

It was built in 1979, making it 46 years old in 2025.

What condition is Mulford RD over 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 July 2023.

How much traffic does Mulford RD over Kilbuck CR carry?

About 750 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Mulford RD over Kilbuck CR?

The structure is 85 ft (26 m) long with a longest span of 41 ft (12.4 m) and a deck 30 ft wide.

Who owns Mulford RD over Kilbuck CR?

It is owned by the Town or Township Highway Agency.