LIVE Event | IECA Pacific Northwest Virtual Connection: Knowledge Gained from Construction Phasing

Includes a Live Event on 06/02/2020 at 3:00 PM (EDT)

Hosted by the IECA Pacific Northwest Chapter and IECA Region One and Sponsored by: Trexiana - Manufacturer of Flex MSE

This event offers 3 – one hour live webinars (that are recorded if you miss one!) on Construction Phasing in the Pacific Northwest. Case studies will be presented from varying locations in Idaho, Oregon and Washington – managing different climates, soils and scales of the project will all be discussed. Each case study provides lessons learned and knowledge for future projects that will be shared with attendees. 

  • Tuesday, June 2 - Concurrent versus Sequential Phasing: Lessons Learned from Large Fill Projects with Dave Jenkins
  • Wednesday, June 3 – Construction Phase Strategy Comparison of Idaho Desert and Mountain Projects with Adam Lyman
  • Thursday, June 4 - Good Initiative Bad Judgment with Travis A. Riehl 

Course Level: All

Thank You Sponsors!


Daily Webinar Sponsors:



Hosted by:


Kristine Sommer, CPESC

Business Development Manager

Ms. Sommer received her B.S. degree in Chemistry from the University of California, Santa Barbara and is presently the Marketing Manager and Project Manager at Clear Water Services.  Ms. Sommer is a Certified Professional in Erosion and Sediment Control (CPESC) and Qualified Industrial Stormwater Practicioner with 7 years of environmental consulting experience in industrial and construction water treatment.  Her stormwater experience includes National Pollution Discharge Elimination System (NPDES) stormwater permit compliance, stormwater pollution and prevention plans (SWPPP) as well as treatment system design and engineering.

Travis A. Riehl

Field and Technical Sales Specialist

Travis A. Riehl is currently a Field and Technical Sales specialist at ACF West, Inc.; a regional distributor of geosythetics and erosion control solutions across the Pacific Northwest. Best known for sharing jobsite photos and pointing out roadside attractions to his wife and son about every erosion concern they ever pass. Travis was Honorably discharged from the United States Marine Corps in 2011 after 5 years of service with the First Marine Division. Shortly after he began his post-secondary education in Sustainability and Communications, he began working as an installer of erosion control products. 9 years later he has proven his ability as a not only a material supplier but as a trusted resource in achieving environmental compliance and cost effective solutions. With first hand knowledge and a deep tool box of vendor resources, Travis has become a valuable go-to in the industry. Travis' best piece of real-world advice is to "always pack muck boots".  

David Jenkins

Erosion Control/Stormwater Engineer

David Jenkins has been the Port of Seattle’s Erosion Control/Stormwater Engineer for the past 21 years overseeing compliance on billions of dollars-worth of heavy civil public works construction projects at Sea-Tac International Airport, on the Seattle waterfront and Duwamish Waterway.

Adam Lyman

Engineering Manager

Adam Lyman is the engineering manager for Syman, LLC with seventeen years of professional experience in stormwater compliance, geotechnical, civil engineering, and dewatering. Experience includes primarily transportation, land development, and public works projects with an emphasis in stormwater and non-stormwater discharge compliance for construction and industrial sites. Mr. Lyman also is a certified construction site stormwater instructor for the City of Boise and Idaho Transportation Department.

To receive credit for this Virtual Connection you must watch each presentation. You have the option to listen to as many presentations as you wish, however you will only receive education credit for the presentations you attended. The total number of Professional Development Hours for this event is three (3).

IECA's Group Watch Feature is designed to save you money while still delivering our world class education. The cost is one connection at full price and then each additional connection within your organization is $15. You must be part of the same organization to purchase group watch. To purchase the group watch for your organization, please contact


Live Webinars
Tuesday, June 2nd – Concurrent versus Sequential Phasing: Lessons Learned from Large Fill Projects
06/02/2020 at 3:00 PM (EDT)   |  60 minutes
06/02/2020 at 3:00 PM (EDT)   |  60 minutes During this presentation, we will explore two case studies in Seattle Washington. The first case study will examine failures in a 1997 construction at the Port of Seattle for a 50-acre employee parking lot. Because the project start was delayed until late summer, significant earthwork occurred in late fall, the beginning of Seattle’s wet season. The contractor sequentially phased the work and the project became a case study in failure. The second case study will examine the change in technique that has led to success in construction phasing. Knowledge gained from the 1997 case study has led to the concurrent phasing concept that has enabled subsequent fill projects, including a 500-acre, 17 million cubic yard embankment project, to successfully achieve compliance during the wettest months of the year.
Wednesday, June 3rd – Construction Phase Strategy Comparison of Idaho Desert and Mountain Projects
06/03/2020 at 3:00 PM (EDT)   |  60 minutes
06/03/2020 at 3:00 PM (EDT)   |  60 minutes Sponsored by Syman, LLC - During this presentation, we will examine two projects in extremely different parts of Idaho. Both projects disturb many acres with tall, steep cuts and fills providing their own unique challenges. Our first case study will look at a large land development constructed in the rolling hills north of Boise Idaho with about 1.7 miles of hillside roadway. The soil and climate provided additional challenges to this project, the soil was sandy loam & clay loam with the climate being semi-arid, receiving about 12 inches of rain and 11 inches of snow each year. Our second case study is a project is about 2 hours north, just west of McCall Idaho. This project was a widening and re-construction of about 3.75 miles of forest service road. With a longer and wetter winter season, this project provided new challenges with an averages 23 inches of rain and 105 inches of snow annually. The soil was mostly clayey soil and rock. We will discuss erosion control approaches that focus on the transition from summer to winter weather and the preparation at both sites. We will discuss lessons learned, knowledge gained and strategies for improving erosion control results and winter and spring maintenance. To conclude, we will have the opportunity to discuss and compare differences between approaches at the two sites.
Thursday, June 4th – Good Initiative Bad Judgment. The Best and Worst Management Practices (BMP's) for erosion and sediment control in the Pacific Northwest.
06/04/2020 at 3:00 PM (EDT)   |  60 minutes
06/04/2020 at 3:00 PM (EDT)   |  60 minutes Sponsored by ACF West Inc. - The Best and Worst Management Practices (BMP's) for erosion and sediment control in the Pacific Northwest. We will look through multiple successes and failures in erosion and sediment control practices in the Pacific Northwest. Our shared objective is to be better prepared for the challenges our projects face and to utilize the best tools to keep your project compliant.
Course Surveys
Washington - Concurrent versus Sequential Phasing: Feedback
1 Question
Idaho - Construction Phase Strategy: Feedback
1 Question
Virtual Connection Survey
10 Questions
Claim Credit
Claim Credit - Concurrent versus Sequential Phasing: Lessons Learned from Large Fill Projects
1.00 PDH credit  |  Certificate available
1.00 PDH credit  |  Certificate available
Claim Credit - Construction Phase Strategy Comparison of Idaho Desert and Mountain Projects
1.00 PDH credit  |  Certificate available
1.00 PDH credit  |  Certificate available