Structure 16605700000000 · Cook County, IL

Webster AVE over N Br Chicago River

Carries Webster AVE over N Br Chicago River, 2200 N 1600 W.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT289 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 4/9 · sets the ratingSubstructure 5/9

289 ft end to end: 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 bascule bridge (drawn closed).

Built1916rebuilt 2022
Length289.4 ft88.2 m
Daily traffic4,600counted 2022
Last inspectedJuly 2023every 24 months

Location

StateIllinois
CountyCook
Location2200 N 1600 W
CarriesWebster AVE
CrossesN Br Chicago River
Coordinates41.92158, -87.66763

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length289.4 ft (88.2 m)
Max Span188.6 ft (57.5 m)
Deck Width60.0 ft (18.3 m)
Deck Area1614.1 sq m
Main Spans1
Year Built1916 (reconstructed 2022)

Traffic

Avg Daily Traffic4,600 (2022)
Truck Traffic6%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number016605700000000

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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