US Bridges

Willow Road over Muddy Plum River

Fair

Jo Daviess County, Illinois · 6 M S Stockton · Structure no. 043301900000000

Built
1910
115 years old
Condition
Fair
inspected September 2024
Type
Other
Concrete
Length
54 ft
1 main span
Daily traffic
125
2021 count
Owner
County
County Highway Agency

About this bridge

Willow Road over Muddy Plum River is a concrete other carrying Willow Road over Muddy Plum River in Jo Daviess County, Illinois. It was built in 1910, so it is 115 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 5 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 125 vehicles a day, roughly 46% of them trucks, projected to reach 126 by 2046. The structure is 54 ft (16.5 m) long and 21 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesWillow Road
CrossesMuddy Plum River
Location6 M S Stockton
RouteCounty Highway 0
CountyJo Daviess County
StateIllinois
Coordinates42.27771, -89.95012
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.7 US tons
Inventory rating19.3 US tons

Structure

Structure typeOther
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span52 ft (15.8 m)
Deck width21 ft (6.3 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2021)
Projected traffic126 by 2046
Trucks46%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$183,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Willow Road over Muddy Plum River built?

It was built in 1910, making it 115 years old in 2025.

What condition is Willow Road over Muddy Plum River 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 September 2024.

How much traffic does Willow Road over Muddy Plum River carry?

About 125 vehicles per day (2021 count), of which roughly 46% are trucks.

How long is Willow Road over Muddy Plum River?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.8 m) and a deck 21 ft wide.

Who owns Willow Road over Muddy Plum River?

It is owned by the County Highway Agency.