US Bridges

Il 176 over Drainage Ditch

Good

McHenry County, Illinois · .2M E of IL23 · Structure no. 056030100000000

Built
2012
13 years old
Condition
Good
inspected July 2022
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
5,700
2023 count
Owner
State
State Highway Agency

About this bridge

Il 176 over Drainage Ditch is a concrete continuous culvert carrying Il 176 over Drainage Ditch 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,700 vehicles a day, roughly 10% of them trucks, projected to reach 7,140 by 2046. The structure is 31 ft (9.3 m) long and 53 ft wide.

Location

Open in Google Maps
CarriesIl 176
CrossesDrainage Ditch
Location.2M E of IL23
RouteState Highway 176
CountyMcHenry County
StateIllinois
Coordinates42.25514, -88.60458
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span14 ft (4.3 m)
Deck width53 ft (16.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2023)
Projected traffic7,140 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Il 176 over Drainage Ditch built?

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

What condition is Il 176 over Drainage Ditch 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 July 2022.

How much traffic does Il 176 over Drainage Ditch carry?

About 5,700 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Il 176 over Drainage Ditch?

The structure is 31 ft (9.3 m) long with a longest span of 14 ft (4.3 m) and a deck 53 ft wide.

Who owns Il 176 over Drainage Ditch?

It is owned by the State Highway Agency.