Structure 16401200000000 · Cook County, IL

Tr-1302 Sunset DR over N Br Chic Rv

Carries Tr-1302 Sunset DR over N Br Chic Rv, 0.2 E Sunset Rge P14.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

24 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built197947 years old
Length24.0 ft7.3 m
Daily traffic450counted 2022
Last inspectedApril 2024every 24 months

Location

StateIllinois
CountyCook
Location0.2 E Sunset Rge P14
CarriesTr-1302 Sunset DR
CrossesN Br Chic Rv
Coordinates42.11642, -87.78557

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length24.0 ft (7.3 m)
Max Span22.0 ft (6.7 m)
Deck Width20.3 ft (6.2 m)
Deck Area45.3 sq m
Main Spans1
Year Built1979

Traffic

Avg Daily Traffic450 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number016401200000000

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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