Martin Marietta

Established in 1872, Eagle Iron Works is one of leaders in aggregate beneficiation in the entire United States. The company s process involves upgrading of materials by washing, scrubbing and classifying for construction materials. It uses equipments, such as complete aggregate plants, sand classification tanks, fine and coarse material washers, fines recovery systems, stabilized base mixers, etc in its aggregate beneficiation process. Eagle Iron Works offers a wide range of products; some of it is coarse material washers, sol-clay washers, log washers, fine material washers, classifying systems and stabilized base mixers, among others.

Hallett Materials is a sand and gravel company operating from more than 40 aggregate deposits in central and western Iowa. It offers pea, oversized and regular gravel; railroad ballast; boulders; compost; dirt; and concrete and golf sand. Hallett Materials was founded in 1918 as Hallett Construction Company. It became Hallett Materials in 1986 when it became part of the Rasmussen Group. Hallett Materials became part of the Oldcastle family of companies in 2001. Its parent company, Oldcastle Materials, is a division of CRH. Hallett Materials, Nuckolls Concrete Services and American Concrete Products form the Iowa Group of Oldcastle Materials. Based in Washington, D.C., Oldcastle Materials is one of the largest asphalt and ready-mix concrete producers in the United States.

Martin Marietta Materials in Winterset is a prominent supplier of construction aggregates and heavy building materials. With a vast network of over 500 locations across 30 states, Canada, and the Caribbean, the company is a trusted industry leader in providing essential materials for construction projects. Generated from their website's infomation