Structure 10590000000000 · Champaign County, IL

Tr 946 over Saline Branch

Carries Tr 946 over Saline Branch, In Crystal Lake Park.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

56 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.

Built1900126 years old
Length56.1 ft17.1 m
Daily traffic350counted 2021
Last inspectedDecember 2024every 24 months

Location

StateIllinois
CountyChampaign
LocationIn Crystal Lake Park
CarriesTr 946
CrossesSaline Branch
Coordinates40.12379, -88.20981

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length56.1 ft (17.1 m)
Max Span54.1 ft (16.5 m)
Deck Width24.3 ft (7.4 m)
Deck Area126.5 sq m
Main Spans1
Year Built1900

Traffic

Avg Daily Traffic350 (2021)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerPrivate
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number010590000000000

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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