Structure 54300600000000 · Logan County, IL

Atanta-beason RD over Kickapoo Ck

Carries Atanta-beason RD over Kickapoo Ck, 4 Mi S Atlanta.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT318 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

318 ft end to end, longest span 80 ft: about 4 semi-trucks nose to tail. 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 tee-beam bridge.

Built194878 years old
Length317.9 ft96.9 m
Daily traffic400counted 2022
Last inspectedJanuary 2024every 24 months

Location

StateIllinois
CountyLogan
Location4 Mi S Atlanta
CarriesAtanta-beason RD
CrossesKickapoo Ck
Coordinates40.21395, -89.19579

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length317.9 ft (96.9 m)
Max Span80.1 ft (24.4 m)
Deck Width26.2 ft (8 m)
Deck Area775.2 sq m
Main Spans5
Year Built1948

Traffic

Avg Daily Traffic400 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number054300600000000

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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