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Project Highlights:

  • Improvements to an existing two-lane arterial, upgrading it to principal arterial standards
  • Federally-funded project
  • Project is being designed as a Complete Street for multi-modal transportation
  • Key features will include a roundabout, separated (protected) bike lanes, and a Dutch intersection
  • Performed a “design affirmation” to accumulate data from years past and refine the new concept
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Traffic engineering

Project Summary

Client: City of Vancouver
Location: Vancouver, WA
Service Provided: Civil Engineering, Landscape Architecture
MacKay Sposito is currently providing design engineering and other related professional services for the SE 1st Street Improvements – 164th Avenue to 192nd Avenue Project for the City of Vancouver (COV). The project includes evaluation of alignment options, traffic engineering, signal designs, landscape designs, environmental process guidance and permits, and utility coordination. The project is federally funded and is intended to address safety and congestion issues.

Additionally, MacKay Sposito will:
• Coordinate project meetings with key project team members
• Provide monthly progress reports
• Prepare and submit an activities list and schedule
• Conduct site investigations and data collection
• Prepare specifications and cost estimates
• Prepare a utility conflict report
• Support the City’s public involvement campaign

The project area can be divided into two distinct zones, with residential developments along the western half and existing and proposed commercial development along the eastern half. To ensure the design of SE 1st Street meets the vision of COV, MacKay Sposito performed a “Design Affirmation” (DA) process. The intent of the DA process was to refine the design concept by reviewing the data accumulated by COV to date as well as new information collected during the initial stages of this project. MacKay Sposito is working on a design that ensures SE 1st Street functions as a complete street accommodating multiple modes of transportation, thereby meeting the community’s needs today and in the future.