Structure 269990 · Palo Alto County, IA

Local over Dd 175

Carries Local over Dd 175, 096333401.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT54 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9Substructure 3/9 · sets the rating

54 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 through truss.

Built1926100 years old
Length54.1 ft16.5 m
Daily traffic21counted 2022
Last inspectedMay 2024every 12 months

Location

StateIowa
CountyPalo Alto
Location096333401
CarriesLocal
CrossesDd 175
Coordinates43.09751, -94.72494

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length54.1 ft (16.5 m)
Max Span49.9 ft (15.2 m)
Deck Width18.0 ft (5.5 m)
Deck Area90.8 sq m
Main Spans1
Year Built1926

Traffic

Avg Daily Traffic21 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number000000000269990

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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