US Bridges

185th Street over Union Drainage Ditch

Good

Will County, Illinois · 0.10MI E of 80th Ave · Structure no. 099606600000000

Built
2012
13 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,850
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

185th Street over Union Drainage Ditch is a concrete culvert carrying 185th Street over Union Drainage Ditch in Will 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 1,850 vehicles a day, roughly 14% of them trucks, projected to reach 1,008 by 2046. The structure is 27 ft (8.2 m) long and 86 ft wide.

Carries185th Street
CrossesUnion Drainage Ditch
Location0.10MI E of 80th Ave
RouteCity Street 0
Coordinates41.55467, -87.81019
Functional classUrban Local

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 inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width86 ft (26.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2022)
Projected traffic1,008 by 2046
Trucks14%
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 185th Street over Union Drainage Ditch built?

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

What condition is 185th Street over Union 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 March 2022.

How much traffic does 185th Street over Union Drainage Ditch carry?

About 1,850 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is 185th Street over Union Drainage Ditch?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 86 ft wide.

Who owns 185th Street over Union Drainage Ditch?

It is owned by the City or Municipal Highway Agency.