Structure 119900 · Clayton County, IA

Drumlin RD over Schneiders Creek

Carries Drumlin RD over Schneiders Creek, 093052701.

Overall conditionPoor

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

How ratings work
Deck4/9 · Poor
Superstructuresets the rating3/9 · Serious
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 3/9 · sets the ratingSubstructure 3/9 · sets the rating

74 ft end to end, longest span 37 ft. 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 multi-beam bridge.

Built1914112 years old
Length74.1 ft22.6 m
Daily traffic10counted 2021
Last inspectedOctober 2023every 6 months

Location

StateIowa
CountyClayton
Location093052701
CarriesDrumlin RD
CrossesSchneiders Creek
Coordinates42.84866, -91.42626

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length74.1 ft (22.6 m)
Max Span37.1 ft (11.3 m)
Deck Width20.7 ft (6.3 m)
Deck Area142.4 sq m
Main Spans2
Year Built1914

Traffic

Avg Daily Traffic10 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 6 months
OwnerCounty Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number000000000119900

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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