Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (12 total)

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.
Bob Sack aluminum drop spillway structure.
Drop spillway, adjustable forms on the Brown farm.
Drop Inlet on Edwin Ohenemus' Farm.
Adjustable Forms for the Drop Spillway on Hugh Brown's Farm.
Watershed with a Drainage Spillway in a Pond.
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