Browse Items · Iowa Heritage Digital Collections

Hoffman & Broghammer Group's concrete drop spillway structure in Delaware County, Iowa; 3 miles north of Manchester, Iowa.

Hoffman/Broghammer concrete drop spillway structure in Delaware County, Iowa. Built in 1959, the reinforced drop spillway structure of "Island Type" serves as the tile outlet for 8" and 12" tiles and as a waterway stabilizer. The waterway was…

Tags: Agriculture, Delaware County Iowa, Drop Spillway, Farmland, Hoffman & Brogghammer Group, J. Widman, J.C. Costigon, Manchester Iowa, Soil and Water Conservation, Soil Conservation Service, Waterways

Area foresters will visit here.

Tags: Agriculture, Delaware County Iowa, Farmland, Soil and Water Conservation

Soil Survey of Iowa: Delaware County.

Soil Survey of Iowa: Report No. 56, Delaware County.

Tags: Delaware County Iowa, Iowa Agricultural Experiment Station, Iowa State University Extension Services, Soil Survey

Big Spring Basin Demonstration Project paper.

A study of the systematic monitoring of groundwater quality at the Big Spring Trout Hatchery and from tile lines, springs, wells, and surface streams in the Big Spring Basin.

Tags: Agriculture, Big Spring Basin, Delaware County Iowa, Farmland, Soil and Water Conservation, Watershed

USDA Photo Feature Edition.

USDA Photo Feature: collection of photos and descriptions of the work of the USDA's Soil Conservation Service supported agencies and farmers using best conservation practices.

Tags: Agriculture, Farmland, Soil and Water Conservation, USDA Soil Conservation Service