Structure 1316900000000 · Adams County, IL

Tr 350 over Mccraney Crk

Carries Tr 350 over Mccraney Crk, 0.88 Mi N Ch 10.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT102 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

102 ft end to end. 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 through truss.

Built1916110 years old
Length102.0 ft31.1 m
Daily traffic75counted 2024
Last inspectedDecember 2023every 24 months

Location

StateIllinois
CountyAdams
Location0.88 Mi N Ch 10
CarriesTr 350
CrossesMccraney Crk
Coordinates39.79659, -91.11057

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length102.0 ft (31.1 m)
Max Span100.1 ft (30.5 m)
Deck Width16.1 ft (4.9 m)
Deck Area152.4 sq m
Main Spans1
Year Built1916

Traffic

Avg Daily Traffic75 (2024)
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number001316900000000

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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