Structure 18309700000000 · Cumberland County, IL

Tr 33 B over Opossum Creek

Carries Tr 33 B over Opossum Creek, 2.0 Mi SE Diona.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 47 ft across with 2 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.

Built196561 years old
Length46.6 ft14.2 m
Daily traffic125counted 2021
Last inspectedFebruary 2025every 24 months

Location

StateIllinois
CountyCumberland
Location2.0 Mi SE Diona
CarriesTr 33 B
CrossesOpossum Creek
Coordinates39.36158, -88.11699

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length46.6 ft (14.2 m)
Max Span16.7 ft (5.1 m)
Deck Width29.2 ft (8.9 m)
Deck Area126.4 sq m
Main Spans2
Year Built1965

Traffic

Avg Daily Traffic125 (2021)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number018309700000000

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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