ASCE Webinars

Have you signed up for an ASCE webinar recently? Did you know that as a Southern Idaho Section member you get a discount on ASCE National Webinars? ASCE’s live webinars provide cost-effective training for large and small groups.


Orchard Street Realignment - CANCELED

​Date: December 17th, 2019

Please note that we have canceled this meeting. We apologize for the inconvenience. Please stay tuned for the upcoming  January Meeting.  


The Student Scholarship Deadline has been extended to December 16th! 

Conference registration is open! Visit our Conference Page for details! 

Welcome to the Southern Idaho Section of the American Society of Civil Engineers homepage. The Southern Idaho Section serves over 600 Members of ASCE in Southern Idaho. We are fortunate to have three Student Chapters within our Section, serving Student Members at Boise State University, Idaho State University, and Brigham Young University - Idaho.

About us

Meeting Rosters

Plan on using your attendance of SIS monthly meetings as Professional Development Hours? You can find more information on this topic as well as .pdf copies of sign-in rosters on the events page.

SIS Board Members

The Vote Is In!  

Congrats to our 2019-2020 Board Members!  


Michelle McDonald EI, M.ASCE

President Elect/Treasurer

Lauren Nuxoll EI, M.ASCE

Vice President

Dan Zimmerman PE, M.ASCE


Kip Davidson PE, M.ASCE


Snake River Branch

Idaho's Infrastructure Report Card

History and Heritage Committee

Legislative Outreach Committee

Scholarship Committee

OCEA Banquet Committee

SIS and Region 8 Awards Committee

Student Chapters:

Boise State University

Idaho State University

Brigham Young University - Idaho

2018 Section Awards recipients 

The Southern Idaho Section held its annual Outstanding Civil Engineering Achievement Awards banquet on March 19th, 2019 at Boise State University. This year's banquet was Casino themed! This year's keynote speaker was ASCE 2019 President Elect Dr. Kancheepuram Gunalan. The Section is pleased to announce the following awards recipients:

  - 2018 SIS Engineer of the Year (+8 Years): Mustafa Mashal, Ph.D, PE, SECB, CPEng, IntPE(NZ), CMEngNZ, M.ASCE

  - 2018 SIS Young Engineer of the Year (1-8 Years): Grae Harper, PE

  - Project of the Year Completed in 2018 (<$10 Million): Manning Crevice Bridge Replacement

  - Project of the Year Completed in 2018 (>$10 Million): WPC Phosphorus Removal Project


Website background photo

The Southern Idaho Section would like to give a special thanks to Charlie Bennett, Architectural Intern at Erstad Architects, for taking the beautiful photo seen as the background of this website. The photo was taken the morning after the Table Rock Fire in June of 2016, which draped the Boise foothills in a blanket of smoke. Charlie was kind enough to grant the SIS permission to use his photo for the purpose of this website.

sis civil award - NOVEMBER 2019​​​

arrowrock dam historical recognition

It was great to see the hard work put in by the Idaho State University (ISU) students, volunteers, and ISU faculty and administrators to make this a successful event for all.

arrowrock dam historical recognition

The Southern Idaho Section is pleased to announce Arrowrock Dam has been recognized as Idaho’s first ASCE National Historic Civil Engineering Landmark!

​The Arrowrock Dam, located 20 miles upriver from Boise, Idaho, serves as an essential water storage facility supplying irrigation water to thousands of acres of fertile farmland in the Treasure Valley. At the time of its dedication in 1915, the Arrowrock Dam was the highest dam in the world at 350 feet, a title it would hold until 1932. Civil Engineers tested the technological limits of the time to construct this engineering
marvel. ​The Arrowrock Dam served as a proving ground for design elements and construction methods that would later be incorporated into other large dams in the west. The dam was the first United States Bureau of Reclamation dam to use Ensign Valves to control the flow from the outlet works. While working on the Arrowrock Dam, Engineer Frank Crowe developed a grid system of delivering concrete pneumatically and an overhead cable system for rapidly delivering construction materials throughout the construction site. Crowe later went on to construct many more dams, including the Hoover Dam, where he utilized the systems he developed while working on the Arrowrock Dam. The Arrowrock Dam is included on the National Register of Historic Places in Idaho.

The Southern Idaho Section hosted a technical tour and dedication ceremony of Arrowrock Dam on August 25, 2016.

​​Stephen Loop received his BS in Civil Engineering from he University of Washington and his MS in Civil Engineering from Oregon State. In addition, he conducted additional engineering studies at the Air Force Institute of Technology.

Steve's career included 5+ years with the Oregon Transportation Department and 33+ years with the Idaho Transportation Department. Highlights include establishing the original urban transportation plan for Nampa-Caldwell, development of the Statewide Transportation Planning Model, establishment of the original Technology Transfer Program and the establishment of Idaho's initial Qualified Products List. Steve spend 10 years in the Idaho Air National Guard where he had the opportunity to command an Engineering Detachment responsible for assisting the Virgin Islands in recovery from Hurricane Hugo.

Steve's service to ASCE included developing a presentation for the 150th Anniversary of the Southern Idaho Section of ASCE and serving on the Idaho Infrastructure Task Force in 2012 and 2018. His service to NSPE included President of the Southwest Chapter of ISPE, President of ISPE, and delegate of NSPE House of Delegates. Steve is a Fellow of the NSPE. Steve has served the community in a number of ways; as a 10 year member of the Boise Planning Commission, as a two year member of the Boise Design REview Committee, and as a member of the Mayor's Advisory Committee on Solar Access. He also served as President of the West Valley Neighborhood Association for 12 years and continues to serve on the Board. 

​Know an outstanding engineer that deserves to be recognized? Nominate them for next month's SIS Civil Award! Both members and non-members that live within the Section boundaries can be recognized for: 

Contributing to any of the goals set forth by ASCE

Community Service

Society Involvement

Going above and beyond their daily job requirements. 

Please send an email to Michelle McDonald @ containing the individuals Name, Discipline, and a brief explanation on why they deserve to be recognized.