Structure 101200700000000 · Winnebago County, IL

US 20 over Kent Creek

Carries US 20 over Kent Creek, 1.3 Mi E Meridian RD.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT49 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 49 ft across with 3 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.

Built196462 years old
Length48.9 ft14.9 m
Daily traffic14,600counted 2023
Last inspectedNovember 2023every 24 months

Location

StateIllinois
CountyWinnebago
Location1.3 Mi E Meridian RD
CarriesUS 20
CrossesKent Creek
Coordinates42.25806, -89.14909

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length48.9 ft (14.9 m)
Max Span15.4 ft (4.7 m)
Deck Width120.1 ft (36.6 m)
Deck Area545.3 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic14,600 (2023)
Truck Traffic15%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number101200700000000

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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