Structure 75320000000000 · Pike County, IL

Tr 7 over Middle Fk Mckee Trib

Carries Tr 7 over Middle Fk Mckee Trib, 3.0 Mi N Perry.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

68 ft end to end. 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 box-beam bridge.

Built197749 years old
Length67.9 ft20.7 m
Daily traffic25counted 2023
Last inspectedApril 2023every 24 months

Location

StateIllinois
CountyPike
Location3.0 Mi N Perry
CarriesTr 7
CrossesMiddle Fk Mckee Trib
Coordinates39.82637, -90.75522

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length67.9 ft (20.7 m)
Max Span65.9 ft (20.1 m)
Deck Width24.3 ft (7.4 m)
Deck Area153.2 sq m
Main Spans1
Year Built1977

Traffic

Avg Daily Traffic25 (2023)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number075320000000000

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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