Structure 66520300000000 · Mercer County, IL

Tr 204 over Camp Creek

Carries Tr 204 over Camp Creek, Ne-19-t15nr2w.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
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 5/9Superstructure 5/9Substructure 5/9

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 slab bridge.

Built1900126 years old
Length25.9 ft7.9 m
Daily traffic25counted 2024
Last inspectedMarch 2024every 24 months

Location

StateIllinois
CountyMercer
LocationNe-19-t15nr2w
CarriesTr 204
CrossesCamp Creek
Coordinates41.27916, -90.64848

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length25.9 ft (7.9 m)
Max Span24.9 ft (7.6 m)
Deck Width19.4 ft (5.9 m)
Deck Area46.6 sq m
Main Spans1
Year Built1900

Traffic

Avg Daily Traffic25 (2024)
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 Number066520300000000

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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