Structure 75203000000000 · Pike County, IL

Il 104 over Trib Mckee Creek

Carries Il 104 over Trib Mckee Creek, 1.2m E Il 107.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 35 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built199135 years old
Length34.8 ft10.6 m
Daily traffic725counted 2023
Last inspectedApril 2023every 48 months

Location

StateIllinois
CountyPike
Location1.2m E Il 107
CarriesIl 104
CrossesTrib Mckee Creek
Coordinates39.81276, -90.72540

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length34.8 ft (10.6 m)
Max Span11.5 ft (3.5 m)
Deck Area77.4 sq m
Main Spans3
Year Built1991

Traffic

Avg Daily Traffic725 (2023)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number075203000000000

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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