The “T” in Tualatin Stands for Team

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CONTENT EXPIRES: December 31, 2023

Mortenson reached substantial completion for a Progressive Design Build of the Tualatin Interceptor for Clean Water Services, 10,000 feet of 48” gravity sewer pipeline that was increased in size to 66” to accommodate growth in the community. The PDB procurement process resulted in a very strong team and the benefits of that team resulted in innovative project ideas and unique cost savings measures. Project ideas such as 550-foot curved micro tunnel under the Tualatin River, phasing of the project for parallel permitting and construction, managing risk of dewatering, and subcontractor procurement, resulted in significant time and cost savings.


1. Analysis of decision making to select microtunnel for construction 

2. Discussion of project phasing to accelerate schedule 

3. Review of cost savings associated with risk sharing of dewatering costs 

4. Describe approach to subcontractor procurement for overall project cost savings

William Anderson, Assoc. DBIA

Asst. Project Manager

Mortenson Construction


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Conference Session Survey
7 Questions
1.00 CEU credit  |  Certificate available
1.00 CEU credit  |  Certificate available