Structure 99031100000000 · Will County, IL

US 30 over Hickory Creek

Carries US 30 over Hickory Creek, 1.3 M E Of US 45.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT159 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

159 ft end to end, longest span 53 ft: about 2 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.

Built1995rebuilt 2011
Length159.1 ft48.5 m
Daily traffic21,900counted 2023
Last inspectedDecember 2021every 48 months

Location

StateIllinois
CountyWill
Location1.3 M E Of US 45
CarriesUS 30
CrossesHickory Creek
Coordinates41.50682, -87.82176

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length159.1 ft (48.5 m)
Max Span53.1 ft (16.2 m)
Deck Width91.9 ft (28 m)
Deck Area1,358 sq m
Main Spans3
Year Built1995 (reconstructed 2011)

Traffic

Avg Daily Traffic21,900 (2023)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number099031100000000

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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