Structure 63301200000000 · Mason County, IL

Fas 567 over C & Im Rr Co

Carries Fas 567 over C & Im Rr Co, N City Limits Havana.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT539 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

539 ft end to end, longest span 75 ft: about 7 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.

Built1949rebuilt 1992
Length539.0 ft164.3 m
Daily traffic1,000counted 2024
Last inspectedMarch 2023every 24 months

Location

StateIllinois
CountyMason
LocationN City Limits Havana
CarriesFas 567
CrossesC & Im Rr Co
Coordinates40.31138, -90.05613

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length539.0 ft (164.3 m)
Max Span75.5 ft (23 m)
Deck Width32.2 ft (9.8 m)
Deck Area1610.1 sq m
Main Spans10
Year Built1949 (reconstructed 1992)

Traffic

Avg Daily Traffic1,000 (2024)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number063301200000000

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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