US Bridges

Mahoney Road over Wolf Creek

Good

Jo Daviess County, Illinois · 2 MI S of Warren · Structure no. 043323500000000

Built
1989
36 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
56 ft
3 main spans
Daily traffic
50
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mahoney Road over Wolf Creek is a concrete channel beam carrying Mahoney Road over Wolf Creek in Jo Daviess 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 4% of them trucks, projected to reach 51 by 2046. The structure is 56 ft (17 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMahoney Road
CrossesWolf Creek
Location2 MI S of Warren
RouteCounty Highway 0
Coordinates42.45916, -90.00146
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length56 ft (17 m)
Longest span18 ft (5.5 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks4%
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 Mahoney Road over Wolf Creek built?

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

What condition is Mahoney Road over Wolf 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 March 2023.

How much traffic does Mahoney Road over Wolf Creek carry?

About 50 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Mahoney Road over Wolf Creek?

The structure is 56 ft (17 m) long with a longest span of 18 ft (5.5 m) and a deck 26 ft wide.

Who owns Mahoney Road over Wolf Creek?

It is owned by the Town or Township Highway Agency.