South Link SeaTac/Airport Station to S 200th St. Design Build Project

Location: SeaTac, WA
Owner: Sound Transit

OCI assisted the PCL/HDR team with permitting, design, and construction of 1.6 miles of double-track Light Rail Transit (LRT) elevated line between the SeaTac/Airport Station and S 200th St. The project included a track guideway, a terminal station at the intersection of S 200th St. and 28th Ave. S, site work, and roadwork in SeaTac, WA. With this extension, the Link Light Rail runs from downtown Seattle to the City of SeaTac. Specifically, OCI’s responsibilities included Drainage Design and Temporary Sediment and Erosion Control (TESC) Design. The Drainage Design consists of Drainage Plans and assistance with Hydraulic Report. TESC Design included TESC Plans and Narrative, Conveyance and BMP sizing, and Water Quality Monitoring Plan.

Conceptual Image courtesy of Sound Transit.

Roadway and Transit Drainage

Service Details >>

Services List
  • Stormwater Management and Design
  • Stormwater Detention, Infiltration, and Treatment Design
  • Hydrologic and Hydraulic Modeling
  • Stormwater Pollution Prevention Plan (SWPPP) and Narrative
  • Temporary Erosion and Sediment Control (TESC) Plans
  • Green Streets and On-Site Stormwater Management Approaches
  • Bridge Scour Analysis
  • Highway Runoff Dilution and Loading Stormwater (HI-RUN) Model
  • Culvert Analysis and Design
Service Contact
Deepa Mungasavalli Prabhu, PE
Practice Lead

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