Structure 14300700000000 · Clinton County, IL

Fas 787 over Coles Creek

Carries Fas 787 over Coles Creek, 2.5 Mi N Ferrin.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

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

128 ft end to end, longest span 46 ft. 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.

Built196462 years old
Length127.6 ft38.9 m
Daily traffic650counted 2020
Last inspectedJanuary 2025every 24 months

Location

StateIllinois
CountyClinton
Location2.5 Mi N Ferrin
CarriesFas 787
CrossesColes Creek
Coordinates38.64609, -89.23281

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length127.6 ft (38.9 m)
Max Span45.9 ft (14 m)
Deck Width27.9 ft (8.5 m)
Deck Area330.6 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic650 (2020)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number014300700000000

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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