Structure 35300500000000 · Hardin County, IL

Tr 25 over Harris Creek

Carries Tr 25 over Harris Creek, NW Q Sec 15 T11s R9e.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT90 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

90 ft end to end, longest span 32 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 channel-beam bridge.

Built196462 years old
Length89.9 ft27.4 m
Daily traffic25counted 2023
Last inspectedMarch 2024every 24 months

Location

StateIllinois
CountyHardin
LocationNW Q Sec 15 T11s R9e
CarriesTr 25
CrossesHarris Creek
Coordinates37.56460, -88.20827

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length89.9 ft (27.4 m)
Max Span32.2 ft (9.8 m)
Deck Width22.6 ft (6.9 m)
Deck Area189.1 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic25 (2023)
Truck Traffic28%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number035300500000000

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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