An illustration of Idaho with District 4 highlighted.

District 4 is made up of 11,553 square miles and maintains 2,321 lane miles and 290 bridges. It is the third largest district by area and by population with over 185,000 residents. District 4 has a diverse landscape with the highest Idaho mountain highway pass (Galena Summit, 8,721 ft.), fertile farms and the Snake River plain.

District 4 contains Blaine, Camas, Cassia, Gooding, Jerome, Lincoln, Minidoka, and Twin Falls counties. The district headquarters is in Shoshone located in Lincoln County, where Jesse Barrus is the district (head) engineer. Mitch Watkins, of Twin Falls, has represented District 4 on the Idaho Transportation Board since January 2024.

District 4 Right of Way Permits

Need to apply for a Right of Way Permit in South-Central Idaho? Use the online permitting tool. Permits are available for approaches, utilities, special events, and more.