US Bridges

Winn Road over Nippersink Creek

Fair

McHenry County, Illinois · 0.4 MI N US 12 · Structure no. 056612300000000

Built
2012
13 years old
Condition
Fair
inspected November 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
143 ft
3 main spans
Daily traffic
3,800
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Winn Road over Nippersink Creek is a prestressed concrete box beam or girders - multiple carrying Winn Road over Nippersink Creek in McHenry County, Illinois. It was built in 2012, so it is 13 years old, younger 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 6 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 3,800 vehicles a day, roughly 3% of them trucks, projected to reach 4,560 by 2046. The structure is 143 ft (43.5 m) long and 48 ft wide.

Location

Open in Google Maps
CarriesWinn Road
CrossesNippersink Creek
Location0.4 MI N US 12
CountyMcHenry County
StateIllinois
Coordinates42.44376, -88.24749
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length143 ft (43.5 m)
Longest span56 ft (17.1 m)
Deck width48 ft (14.6 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2021)
Projected traffic4,560 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Winn Road over Nippersink Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Winn Road over Nippersink Creek 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 November 2022.

How much traffic does Winn Road over Nippersink Creek carry?

About 3,800 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Winn Road over Nippersink Creek?

The structure is 143 ft (43.5 m) long with a longest span of 56 ft (17.1 m) and a deck 48 ft wide.

Who owns Winn Road over Nippersink Creek?

It is owned by the City or Municipal Highway Agency.