US Bridges

Il 58 (dempster S over I- 94 Edens

Fair

Cook County, Illinois · 4 M N US 14 · Structure no. 016094300000000

Built
1950
75 years old, rebuilt 1987
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
262 ft
4 main spans
Daily traffic
34,900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 58 (dempster S over I- 94 Edens is a steel continuous stringer/multi-beam or girder carrying Il 58 (dempster S over I- 94 Edens in Cook County, Illinois. It was built in 1950 and reconstructed in 1987, so it is 75 years old, older 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 34,900 vehicles a day, roughly 3% of them trucks, projected to reach 32,926 by 2046. The structure is 262 ft (79.8 m) long and 92 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIl 58 (dempster S
CrossesI- 94 Edens
Location4 M N US 14
RouteState Highway 58
CountyCook County
StateIllinois
Coordinates42.04085, -87.7635
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating28.9 US tons
Inventory rating22.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length262 ft (79.8 m)
Longest span71 ft (21.6 m)
Deck width92 ft (28 m)
Roadway width71 ft (21.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,900 (2023)
Projected traffic32,926 by 2046
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 58 (dempster S over I- 94 Edens built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1987.

What condition is Il 58 (dempster S over I- 94 Edens 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 May 2023.

How much traffic does Il 58 (dempster S over I- 94 Edens carry?

About 34,900 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Il 58 (dempster S over I- 94 Edens?

The structure is 262 ft (79.8 m) long with a longest span of 71 ft (21.6 m) and a deck 92 ft wide.

Who owns Il 58 (dempster S over I- 94 Edens?

It is owned by the State Highway Agency.