Structure 10561 · Woodbury County, IA

W 14th ST over Perry Creek

Carries W 14th ST over Perry Creek, 000000000.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT214 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

214 ft end to end, longest span 47 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 slab bridge.

Built200620 years old
Length213.9 ft65.2 m
Daily traffic4,284counted 2022
Last inspectedApril 2021every 48 months

Location

StateIowa
CountyWoodbury
Location000000000
CarriesW 14th ST
CrossesPerry Creek
Coordinates42.50503, -96.41424

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length213.9 ft (65.2 m)
Max Span46.9 ft (14.3 m)
Deck Width48.9 ft (14.9 m)
Deck Area971.5 sq m
Main Spans4
Year Built2006

Traffic

Avg Daily Traffic4,284 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2021
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000010561

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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