US Bridges

Collins Rd. over N.Br.Kishwaukee Riv.

Fair

McHenry County, Illinois · 4.6M.W.OF Woodstock · Structure no. 056315300000000

Built
1991
34 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
132 ft
3 main spans
Daily traffic
725
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Collins Rd. over N.Br.Kishwaukee Riv. is a prestressed concrete box beam or girders - multiple carrying Collins Rd. over N.Br.Kishwaukee Riv. in McHenry County, Illinois. It was built in 1991, so it is 34 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 725 vehicles a day, roughly 4% of them trucks, projected to reach 870 by 2046. The structure is 132 ft (40.3 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCollins Rd.
CrossesN.Br.Kishwaukee Riv.
Location4.6M.W.OF Woodstock
RouteCounty Highway 0
CountyMcHenry County
StateIllinois
Coordinates42.29845, -88.54229
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating62.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length132 ft (40.3 m)
Longest span54 ft (16.5 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic725 (2021)
Projected traffic870 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Collins Rd. over N.Br.Kishwaukee Riv. built?

It was built in 1991, making it 34 years old in 2025.

What condition is Collins Rd. over N.Br.Kishwaukee Riv. 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 October 2024.

How much traffic does Collins Rd. over N.Br.Kishwaukee Riv. carry?

About 725 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Collins Rd. over N.Br.Kishwaukee Riv.?

The structure is 132 ft (40.3 m) long with a longest span of 54 ft (16.5 m) and a deck 27 ft wide.

Who owns Collins Rd. over N.Br.Kishwaukee Riv.?

It is owned by the Town or Township Highway Agency.