Structure 85003600000000 · Schuyler County, IL

Il 100 over Elm Creek

Carries Il 100 over Elm Creek, E Edge Sheldon Grove.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT99 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

99 ft end to end. Lengths and the car 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.

Built199927 years old
Length99.1 ft30.2 m
Daily traffic525counted 2023
Last inspectedMay 2022every 48 months

Location

StateIllinois
CountySchuyler
LocationE Edge Sheldon Grove
CarriesIl 100
CrossesElm Creek
Coordinates40.16721, -90.29372

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length99.1 ft (30.2 m)
Max Span96.8 ft (29.5 m)
Deck Width36.7 ft (11.2 m)
Deck Area338.2 sq m
Main Spans1
Year Built1999

Traffic

Avg Daily Traffic525 (2023)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number085003600000000

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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