Structure 16101100000000 · Cook County, IL

25th AVE over Rr - Ihb

Carries 25th AVE over Rr - Ihb, 0.3 M N Il 64.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,307 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

1,307 ft end to end, longest span 100 ft: about 3.6 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1965rebuilt 1994
Length1306.8 ft398.3 m
Daily traffic15,900counted 2023
Last inspectedJanuary 2024every 24 months

Location

StateIllinois
CountyCook
Location0.3 M N Il 64
Carries25th AVE
CrossesRr - Ihb
Coordinates41.91404, -87.86459

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1306.8 ft (398.3 m)
Max Span100.4 ft (30.6 m)
Deck Width62.0 ft (18.9 m)
Deck Area7527.9 sq m
Main Spans16
Year Built1965 (reconstructed 1994)

Traffic

Avg Daily Traffic15,900 (2023)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016101100000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges