Structure 1001300000000 · Adams County, IL

Il 57 (gardner Exp over Curtis Creek

Carries Il 57 (gardner Exp over Curtis Creek, 1.6m S US 24(maine).

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT54 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 6/9 · sets the ratingSubstructure 7/9

54 ft end to end, longest span 26 ft. 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.

Built1959rebuilt 2020
Length54.5 ft16.6 m
Daily traffic5,150counted 2023
Last inspectedFebruary 2025every 24 months

Location

StateIllinois
CountyAdams
Location1.6m S US 24(maine)
CarriesIl 57 (gardner Exp
CrossesCurtis Creek
Coordinates39.90951, -91.40963

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length54.5 ft (16.6 m)
Max Span25.6 ft (7.8 m)
Deck Width60.7 ft (18.5 m)
Deck Area307.1 sq m
Main Spans2
Year Built1959 (reconstructed 2020)

Traffic

Avg Daily Traffic5,150 (2023)
Truck Traffic25%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number001001300000000

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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