Structure 25317700000000 · Effingham County, IL

Tr-30 over Corwin Creek

Carries Tr-30 over Corwin Creek, 2 Mi E Beecher City.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

61 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.

Built199828 years old
Length61.4 ft18.7 m
Daily traffic200counted 2023
Last inspectedJuly 2023every 48 months

Location

StateIllinois
CountyEffingham
Location2 Mi E Beecher City
CarriesTr-30
CrossesCorwin Creek
Coordinates39.18247, -88.74970

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length61.4 ft (18.7 m)
Max Span59.1 ft (18 m)
Deck Width27.9 ft (8.5 m)
Deck Area158.9 sq m
Main Spans1
Year Built1998

Traffic

Avg Daily Traffic200 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number025317700000000

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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