Structure 27326600000000 · Ford County, IL

Tr 73a Wall over Wall Town DR Ditch

Carries Tr 73a Wall over Wall Town DR Ditch, 1390e 900n.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
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 6/9

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.

Built198046 years old
Length67.9 ft20.7 m
Daily traffic50counted 2023
Last inspectedApril 2023every 24 months

Location

StateIllinois
CountyFord
Location1390e 900n
CarriesTr 73a Wall
CrossesWall Town DR Ditch
Coordinates40.53069, -88.19615

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length67.9 ft (20.7 m)
Max Span65.9 ft (20.1 m)
Deck Width27.2 ft (8.3 m)
Deck Area171.8 sq m
Main Spans1
Year Built1980

Traffic

Avg Daily Traffic50 (2023)
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 Critical8 — Stable, low risk
Structure Number027326600000000

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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