Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (17 total)

Drop spillway notch on the Weir farm.
Drop spillway on pasture land
Drop spillway, adjustable forms on the Brown farm.
Hoffman & Broghammer Group's concrete drop spillway structure in Delaware County, Iowa; 3 miles north of Manchester, Iowa.
Hoffman & Broghammer Group's concrete drop spillway structure in Delaware County, Iowa; 3 miles north of Manchester, Iowa.
Watershed with a Drainage Spillway in a Pond.
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