Structure 58312600000000 · Macon County, IL

Tr 66(baker Rd) over Mosquito Creek

Carries Tr 66(baker Rd) over Mosquito Creek, 1.6 Mi SE Of Boody.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 7/9

26 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 channel-beam bridge.

Built1957rebuilt 1998
Length25.9 ft7.9 m
Daily traffic50counted 2020
Last inspectedDecember 2023every 24 months

Location

StateIllinois
CountyMacon
Location1.6 Mi SE Of Boody
CarriesTr 66(baker Rd)
CrossesMosquito Creek
Coordinates39.74816, -89.02814

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length25.9 ft (7.9 m)
Max Span23.3 ft (7.1 m)
Deck Width25.9 ft (7.9 m)
Deck Area62.4 sq m
Main Spans1
Year Built1957 (reconstructed 1998)

Traffic

Avg Daily Traffic50 (2020)
Truck Traffic8%
Lanes On Bridge2

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 Number058312600000000

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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