Structure 27006800000000 · Ford County, IL

Ill 9 over Big Four Ditch

Carries Ill 9 over Big Four Ditch, 9.94 Mi E Of Ill 47.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure8/9 · Very Good
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT144 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 8/9Substructure 6/9

144 ft end to end, longest span 47 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built1975rebuilt 2006
Length144.0 ft43.9 m
Daily traffic1,700counted 2023
Last inspectedMarch 2023every 24 months

Location

StateIllinois
CountyFord
Location9.94 Mi E Of Ill 47
CarriesIll 9
CrossesBig Four Ditch
Coordinates40.45833, -88.18713

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length144.0 ft (43.9 m)
Max Span46.9 ft (14.3 m)
Deck Width46.6 ft (14.2 m)
Deck Area623.4 sq m
Main Spans3
Year Built1975 (reconstructed 2006)

Traffic

Avg Daily Traffic1,700 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number027006800000000

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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