Structure 2001400000000 · Alexander County, IL

Ill 3 over Cache River

Carries Ill 3 over Cache River, 2.8 Mi S Ill 127.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT281 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

281 ft end to end, longest span 109 ft: about 4 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 multi-beam bridge.

Built1948rebuilt 1991
Length280.8 ft85.6 m
Daily traffic1,950counted 2023
Last inspectedJanuary 2025every 24 months

Location

StateIllinois
CountyAlexander
Location2.8 Mi S Ill 127
CarriesIll 3
CrossesCache River
Coordinates37.09352, -89.25665

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length280.8 ft (85.6 m)
Max Span108.6 ft (33.1 m)
Deck Width35.1 ft (10.7 m)
Deck Area915.9 sq m
Main Spans3
Year Built1948 (reconstructed 1991)

Traffic

Avg Daily Traffic1,950 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number002001400000000

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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