Structure 51600800000000 · Lawrence County, IL

St. F Muni 7250 over Wabash River

Carries St. F Muni 7250 over Wabash River, St. Francisville.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,054 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9Substructure 3/9 · sets the rating

1,054 ft end to end, longest span 17 ft: about 2.9 football fields. 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.

Built1906120 years old
Length1054.1 ft321.3 m
Daily traffic500counted 2022
Last inspectedApril 2022every 24 months

Location

StateIllinois
CountyLawrence
LocationSt. Francisville
CarriesSt. F Muni 7250
CrossesWabash River
Coordinates38.60239, -87.63697

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length1054.1 ft (321.3 m)
Max Span17.1 ft (5.2 m)
Deck Width12.1 ft (3.7 m)
Deck Area1188.8 sq m
Main Spans77
Year Built1906

Traffic

Avg Daily Traffic500 (2022)
Truck Traffic15%
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2022
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number051600800000000

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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