US Bridges

Eldorado ST over UP RR

Good

Cook County, Illinois · 0.2 M S of Tower RD · Structure no. 016826000000000

Built
1940
85 years old, rebuilt 2007
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
148 ft
4 main spans
Daily traffic
400
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eldorado ST over UP RR is a steel continuous stringer/multi-beam or girder carrying Eldorado ST over UP RR in Cook County, Illinois. It was built in 1940 and reconstructed in 2007, so it is 85 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 400 vehicles a day, roughly 8% of them trucks, projected to reach 480 by 2046. The structure is 148 ft (45 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesEldorado ST
CrossesUP RR
Location0.2 M S of Tower RD
RouteCity Street 0
CountyCook County
StateIllinois
Coordinates42.1129, -87.73912
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length148 ft (45 m)
Longest span41 ft (12.6 m)
Deck width30 ft (9.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic480 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Eldorado ST over UP RR built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2007.

What condition is Eldorado ST over UP RR 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 August 2023.

How much traffic does Eldorado ST over UP RR carry?

About 400 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Eldorado ST over UP RR?

The structure is 148 ft (45 m) long with a longest span of 41 ft (12.6 m) and a deck 30 ft wide.

Who owns Eldorado ST over UP RR?

It is owned by the City or Municipal Highway Agency.