Structure 606410 · Jasper County, IA

Quicksilver AVE over Ia 163

Carries Quicksilver AVE over Ia 163, 3.5 Miles West Of Ia 14.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT229 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

229 ft end to end, longest span 116 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built199729 years old
Length229.3 ft69.9 m
Daily traffic850counted 2022
Last inspectedJanuary 2023every 24 months

Location

StateIowa
CountyJasper
Location3.5 Miles West Of Ia 14
CarriesQuicksilver AVE
CrossesIa 163
Coordinates41.54418, -93.12975

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length229.3 ft (69.9 m)
Max Span116.1 ft (35.4 m)
Deck Width38.7 ft (11.8 m)
Deck Area824.8 sq m
Main Spans2
Year Built1997

Traffic

Avg Daily Traffic850 (2022)
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000606410

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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