Structure 71333600000000 · Ogle County, IL

West Branch RD over S. Fork Of Leaf Rivr

Carries West Branch RD over S. Fork Of Leaf Rivr, .07mi S W Grove RD.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

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 box-beam bridge.

Built200719 years old
Length25.6 ft7.8 m
Daily traffic50counted 2017
Last inspectedAugust 2021every 48 months

Location

StateIllinois
CountyOgle
Location.07mi S W Grove RD
CarriesWest Branch RD
CrossesS. Fork Of Leaf Rivr
Coordinates42.09806, -89.53472

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length25.6 ft (7.8 m)
Max Span23.0 ft (7 m)
Deck Width27.9 ft (8.5 m)
Deck Area66.3 sq m
Main Spans1
Year Built2007

Traffic

Avg Daily Traffic50 (2017)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2021
Inspection FrequencyEvery 48 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number071333600000000

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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