US Bridges

Scott Ave over Union Pacific RR

Fair

Cook County, Illinois · 0.08M Ne.Green Bay R · Structure no. 016704000000000

Built
1940
85 years old, rebuilt 1990
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
157 ft
4 main spans
Daily traffic
1,850
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Scott Ave over Union Pacific RR is a steel continuous stringer/multi-beam or girder carrying Scott Ave over Union Pacific RR in Cook County, Illinois. It was built in 1940 and reconstructed in 1990, 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 fair condition with a lowest component rating of 5 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 1,850 vehicles a day, roughly 16% of them trucks, projected to reach 1,818 by 2046. The structure is 157 ft (47.9 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesScott Ave
CrossesUnion Pacific RR
Location0.08M Ne.Green Bay R
RouteCity Street 0
CountyCook County
StateIllinois
Coordinates42.12, -87.74447
Functional classUrban Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span45 ft (13.7 m)
Deck width50 ft (15.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2022)
Projected traffic1,818 by 2046
Trucks16%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Scott Ave over Union Pacific RR built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1990.

What condition is Scott Ave over Union Pacific RR 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 July 2023.

How much traffic does Scott Ave over Union Pacific RR carry?

About 1,850 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Scott Ave over Union Pacific RR?

The structure is 157 ft (47.9 m) long with a longest span of 45 ft (13.7 m) and a deck 50 ft wide.

Who owns Scott Ave over Union Pacific RR?

It is owned by the City or Municipal Highway Agency.