Structure 16634600000000 · Cook County, IL

Coffey RD over Us12/45

Carries Coffey RD over Us12/45, .6m S Of Il72.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT283 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

283 ft end to end, longest span 164 ft: about 4 semi-trucks nose to tail. 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.

Built20188 years old
Length282.8 ft86.2 m
Daily traffic5,000counted 2019
Last inspectedMay 2023every 24 months

Location

StateIllinois
CountyCook
Location.6m S Of Il72
CarriesCoffey RD
CrossesUs12/45
Coordinates41.98896, -87.88111

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length282.8 ft (86.2 m)
Max Span163.7 ft (49.9 m)
Deck Width35.1 ft (10.7 m)
Deck Area922.3 sq m
Main Spans2
Year Built2018

Traffic

Avg Daily Traffic5,000 (2019)
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number016634600000000

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.

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