Structure 16102500000000 · Cook County, IL

US 12 20 (95th St) over Melvina Ditch

Carries US 12 20 (95th St) over Melvina Ditch, 0.7 M E Il 43.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

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

A culvert 25 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built196957 years old
Length24.9 ft7.6 m
Daily traffic28,500counted 2023
Last inspectedJanuary 2025every 24 months

Location

StateIllinois
CountyCook
Location0.7 M E Il 43
CarriesUS 12 20 (95th St)
CrossesMelvina Ditch
Coordinates41.71951, -87.78556

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length24.9 ft (7.6 m)
Max Span9.8 ft (3 m)
Deck Width83.0 ft (25.3 m)
Deck Area192.3 sq m
Main Spans2
Year Built1969

Traffic

Avg Daily Traffic28,500 (2023)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number016102500000000

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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