US Bridges

Wood ST over Cal Union Ditch

Fair

Cook County, Illinois · 0.2 M S US 6 · Structure no. 016281400000000

Built
2003
22 years old
Condition
Fair
inspected November 2023
Type
Frame
Concrete
Length
33 ft
1 main span
Daily traffic
7,600
2023 count
Owner
State
State Highway Agency

About this bridge

Wood ST over Cal Union Ditch is a concrete frame carrying Wood ST over Cal Union Ditch in Cook County, Illinois. It was built in 2003, so it is 22 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 7,600 vehicles a day, roughly 3% of them trucks, projected to reach 7,828 by 2046. The structure is 33 ft (10.1 m) long and 71 ft wide.

CarriesWood ST
CrossesCal Union Ditch
Location0.2 M S US 6
Coordinates41.5976, -87.66075
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span31 ft (9.6 m)
Deck width71 ft (21.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,600 (2023)
Projected traffic7,828 by 2046
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Wood ST over Cal Union Ditch built?

It was built in 2003, making it 22 years old in 2025.

What condition is Wood ST over Cal Union Ditch 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 2023.

How much traffic does Wood ST over Cal Union Ditch carry?

About 7,600 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Wood ST over Cal Union Ditch?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.6 m) and a deck 71 ft wide.

Who owns Wood ST over Cal Union Ditch?

It is owned by the State Highway Agency.