Construction Updates

Published: October 19, 2023

College of Western Idaho’s (CWI) Nampa Campus is kicking off a new phase of expansion. We are excited to share that infrastructure work for the new Agricultural Science and Horticulture Building will start the week of Oct. 23.

Overview of the work during this phase:

  • A new bridge is being built over the Phyllis Canal, connecting our current campus to the new buildings. Starting on Oct. 23 and continuing through March 2024, the Phyllis Canal pathway, roadway, and the Purdam Gulch ditch bank will be closed for bridge construction.
  • Piers for the bridge will be driven into the ground around the canal area, leading to significant noise levels during the week of Oct. 23. Students, faculty, and staff in the Nampa Campus Willows Buildings – as well as residents in surrounding neighborhoods should expect to hear noise during this portion of construction. 
  • The project will include extending a sewer line from East Terra Linda Way to Cherry Lane. A detour on East Terra Linda Way will be in place to ensure the road remains accessible.

View map of construction

The Agricultural Science and Horticulture Building, as well as the Health and Science Building will open in Fall 2025. For the most up-to-date project information, please visit CWI's Campus Development.

Our CWI community's continued patience and understanding during this initial phase of construction are greatly appreciated. Together, we are shaping the future of CWI, and your support is integral to our growth.

If you have any questions or concerns, please reach out to our project team at

Stay Up To Date

Learn about news and events by subscribing to CWI’s eNewsletter.

View Newsletter Archive