Structure 62471700000000 · Marshall County, IL

Tr 126 (th-s48) over S Branch Crow Creek

Carries Tr 126 (th-s48) over S Branch Crow Creek, T29n-r1w-3pm Sec 35.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT85 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

85 ft end to end, longest span 36 ft. 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 channel-beam bridge.

Built197056 years old
Length85.0 ft25.9 m
Daily traffic50counted 2024
Last inspectedApril 2023every 24 months

Location

StateIllinois
CountyMarshall
LocationT29n-r1w-3pm Sec 35
CarriesTr 126 (th-s48)
CrossesS Branch Crow Creek
Coordinates40.93979, -89.18504

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length85.0 ft (25.9 m)
Max Span36.1 ft (11 m)
Deck Width26.2 ft (8 m)
Deck Area207.2 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic50 (2024)
Truck Traffic40%
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 Number062471700000000

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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