Main Office
100 Industrial Avenue
P.O. Box 632
Humboldt, Iowa 50548
(515)332-4208
Blacktop Service Shop
1209 11th Street North
Humboldt, Iowa 50548
(515)332-4365
Humboldt Asphalt Plant
2314 210th Street
Humboldt, Iowa 50548
(515) 332-5123
Northwest Materials
1648 Lainson Avenue
Fort Dodge, Iowa 50501
(515)573-7671
Whittemore Asphalt Plant
213 210th Street
Whittemore, Iowa 50598
(515)884-0027
Aurelia Asphalt Plant
5632 10th Avenue
Aurelia, Iowa 51005
(712)434-2337
Allison Asphalt Plant
21629 Highway 3
Allison, Iowa 50602
(319)267-2796
Mt. Etna Asphalt Plant
1290 Juniper Avenue
Corning, Iowa 50841
(641)322-3106
Miller Pit
41600 330th Street
Rolfe, Iowa 50581
Erickson Pit
Gotch Park Road
Humbodlt, Iowa 50548
Warren Pit
Bradgate, Iowa 50548