Structure 26334100000000 · Fayette County, IL

Tr-339 over Walnut Creek

Carries Tr-339 over Walnut Creek, 2.5 Mi SW ST Elmo.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

37 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 box-beam bridge.

Built198640 years old
Length37.1 ft11.3 m
Daily traffic100counted 2023
Last inspectedJanuary 2022every 48 months

Location

StateIllinois
CountyFayette
Location2.5 Mi SW ST Elmo
CarriesTr-339
CrossesWalnut Creek
Coordinates38.98421, -88.87973

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length37.1 ft (11.3 m)
Max Span33.1 ft (10.1 m)
Deck Width24.3 ft (7.4 m)
Deck Area83.6 sq m
Main Spans1
Year Built1986

Traffic

Avg Daily Traffic100 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2022
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number026334100000000

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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