Structure 39202000000000 · Jackson County, IL

Ill RTE 13 over Trib-piles Fork Crk.

Carries Ill RTE 13 over Trib-piles Fork Crk., 0.1m W.univ.mall Ent.

Overall conditionFair

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

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 35 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built1948rebuilt 1984
Length35.1 ft10.7 m
Daily traffic25,500counted 2023
Last inspectedDecember 2023every 24 months

Location

StateIllinois
CountyJackson
Location0.1m W.univ.mall Ent
CarriesIll RTE 13
CrossesTrib-piles Fork Crk.
Coordinates37.72999, -89.19442

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length35.1 ft (10.7 m)
Max Span7.9 ft (2.4 m)
Deck Area329.6 sq m
Main Spans4
Year Built1948 (reconstructed 1984)

Traffic

Avg Daily Traffic25,500 (2023)
Truck Traffic5%
Lanes On Bridge8

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number039202000000000

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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