Structure 63000500000000 · Mason County, IL

Il 10 over Crane Creek

Carries Il 10 over Crane Creek, 1.5 Mi N Easton.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

51 ft end to end, longest span 24 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 slab bridge.

Built1925rebuilt 1970
Length50.9 ft15.5 m
Daily traffic550counted 2023
Last inspectedJuly 2024every 24 months

Location

StateIllinois
CountyMason
Location1.5 Mi N Easton
CarriesIl 10
CrossesCrane Creek
Coordinates40.25415, -89.84732

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length50.9 ft (15.5 m)
Max Span24.3 ft (7.4 m)
Deck Width46.6 ft (14.2 m)
Deck Area220.1 sq m
Main Spans2
Year Built1925 (reconstructed 1970)

Traffic

Avg Daily Traffic550 (2023)
Truck Traffic18%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number063000500000000

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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