US Bridges

Dempster ST over N. Shore Channel

Fair

Cook County, Illinois · 0.2 E Kimball · Structure no. 016277300000000

Built
2003
22 years old
Condition
Fair
inspected September 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
181 ft
3 main spans
Daily traffic
21,300
2023 count
Owner
State
State Highway Agency

About this bridge

Dempster ST over N. Shore Channel is a steel continuous stringer/multi-beam or girder carrying Dempster ST over N. Shore Channel 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 21,300 vehicles a day, roughly 3% of them trucks, projected to reach 21,300 by 2046. The structure is 181 ft (55.3 m) long and 81 ft wide.

Location

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CarriesDempster ST
CrossesN. Shore Channel
Location0.2 E Kimball
CountyCook County
StateIllinois
Coordinates42.04096, -87.70958
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.9 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length181 ft (55.3 m)
Longest span87 ft (26.5 m)
Deck width81 ft (24.8 m)
Roadway width66 ft (20 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,300 (2023)
Projected traffic21,300 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 Dempster ST over N. Shore Channel built?

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

What condition is Dempster ST over N. Shore Channel 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 September 2021.

How much traffic does Dempster ST over N. Shore Channel carry?

About 21,300 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Dempster ST over N. Shore Channel?

The structure is 181 ft (55.3 m) long with a longest span of 87 ft (26.5 m) and a deck 81 ft wide.

Who owns Dempster ST over N. Shore Channel?

It is owned by the State Highway Agency.