Structure 38510200000000 · Iroquois County, IL

Tr 363 over Pigeon CR

Carries Tr 363 over Pigeon CR, .2mi E Ill 49.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

56 ft end to end, longest span 27 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 channel-beam bridge.

Built1965rebuilt 2011
Length56.1 ft17.1 m
Daily traffic100counted 2022
Last inspectedAugust 2024every 24 months

Location

StateIllinois
CountyIroquois
Location.2mi E Ill 49
CarriesTr 363
CrossesPigeon CR
Coordinates40.51490, -87.89498

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length56.1 ft (17.1 m)
Max Span26.9 ft (8.2 m)
Deck Width25.9 ft (7.9 m)
Deck Area135.1 sq m
Main Spans2
Year Built1965 (reconstructed 2011)

Traffic

Avg Daily Traffic100 (2022)
Truck Traffic40%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number038510200000000

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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