Structure 99430400000000 · Will County, IL

Patterson RD over Quarry

Carries Patterson RD over Quarry, 0.3m West Brandon RD.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT128 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 8/9

128 ft end to end. 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.

Built200026 years old
Length127.6 ft38.9 m
Daily traffic825counted 2023
Last inspectedJuly 2024every 24 months

Location

StateIllinois
CountyWill
Location0.3m West Brandon RD
CarriesPatterson RD
CrossesQuarry
Coordinates41.49530, -88.10361

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length127.6 ft (38.9 m)
Max Span122.7 ft (37.4 m)
Deck Width43.6 ft (13.3 m)
Deck Area517.4 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic825 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number099430400000000

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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