Structure 55000500000000 · McDonough County, IL

US 67 over Troublesome Creek

Carries US 67 over Troublesome Creek, 1.7 Mi S Of US 136.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT76 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

76 ft end to end, longest span 37 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 box-beam bridge.

Built1923rebuilt 2008
Length76.1 ft23.2 m
Daily traffic2,400counted 2023
Last inspectedDecember 2022every 24 months

Location

StateIllinois
CountyMcDonough
Location1.7 Mi S Of US 136
CarriesUS 67
CrossesTroublesome Creek
Coordinates40.43060, -90.61850

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length76.1 ft (23.2 m)
Max Span37.1 ft (11.3 m)
Deck Width33.1 ft (10.1 m)
Deck Area234.3 sq m
Main Spans2
Year Built1923 (reconstructed 2008)

Traffic

Avg Daily Traffic2,400 (2023)
Truck Traffic18%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number055000500000000

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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