Structure 58323900000000 · Macon County, IL

Tr 29 Schellabarg over Stevens Creek

Carries Tr 29 Schellabarg over Stevens Creek, 1.6 Mi NW Forsyth.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
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 FT97 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

97 ft end to end, longest span 47 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 box-beam bridge.

Built197947 years old
Length97.1 ft29.6 m
Daily traffic25counted 2020
Last inspectedJanuary 2025every 24 months

Location

StateIllinois
CountyMacon
Location1.6 Mi NW Forsyth
CarriesTr 29 Schellabarg
CrossesStevens Creek
Coordinates39.94927, -88.97612

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length97.1 ft (29.6 m)
Max Span46.9 ft (14.3 m)
Deck Width24.0 ft (7.3 m)
Deck Area216.1 sq m
Main Spans2
Year Built1979

Traffic

Avg Daily Traffic25 (2020)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number058323900000000

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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