Structure 87002000000000 · Shelby County, IL

Fap 325(il 16) over Kaskaskia River

Carries Fap 325(il 16) over Kaskaskia River, In Shelbyville.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT208 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

208 ft end to end, longest span 102 ft: about 3 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.

Built197551 years old
Length208.0 ft63.4 m
Daily traffic6,500counted 2023
Last inspectedJuly 2024every 24 months

Location

StateIllinois
CountyShelby
LocationIn Shelbyville
CarriesFap 325(il 16)
CrossesKaskaskia River
Coordinates39.40589, -88.78418

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length208.0 ft (63.4 m)
Max Span102.4 ft (31.2 m)
Deck Width89.9 ft (27.4 m)
Deck Area1737.2 sq m
Main Spans2
Year Built1975

Traffic

Avg Daily Traffic6,500 (2023)
Truck Traffic10%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number087002000000000

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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