Comprehensive Stormwater Management Program ($80M)

In 2003, The Washington State Department of Ecology issued a new National Pollutant Discharge Elimination System permit to the Port of Seattle, Sea-Tac Airport..

Goal

As a condition of the NPDES Permit, the Port of Seattle was required to start construction of these new storm water facilities by July 31, 2006 and complete them by July 31, 2007.

Project

In order to meet the obligations of the 401 Certification, NPDES Permit, and 404 Certification, the Port of Seattle needed to design and construct stormwater facilities that addressed:

  • Flow Control Mitigation
  • Water Quality Mitigation
  • Low Stream Flow Mitigation
  • Various source control and water quality best management practices

Large scale stormwater projects included:

  • 11-acre foot Stormwater Detention Pond and Water Quality Treatment Facility (SE Pond)
  • SE Pond Tunnel
  • North Employee Parking Lot Stormwater Detention Pond
  • SDN1 Stormwater Detention Pond
  • SDS4 Stormwater Detention Pond
 Status

Shen Consulting was one of the primary Project Managers which led the effort to complete the CSMP on time and under budget.

“Shen Consulting provided critical Project Management for a variety of capital projects, ranging from $200,000 to $5 Million over the past 13 years...

...Shen and his team have the flexibility an ability to co-locate into client offices, understand client culture quickly, and turn all of it into success.”

- George England, Program Leader, Landside/Stormwater