Dawn Way Drainage Conveyance Improvements Project

Dawn Way Drainage Conveyance Improvements Project photo

Project Description

The Dawn Way Drainage Conveyance Improvements Project addresses a recurring flooding problem at the intersection of Dawn Way and Old Redwood Highway, where heavy storm events have historically caused roadway flooding and impacted nearby homes. The Town identified this location as a priority in its Storm Drainage Master Plan, and this project represents the planned response to improve how stormwater moves through the Starr Creek watershed during significant storm events. 

The project includes installation of a new concrete box culvert to increase drainage capacity, replacement of an existing open roadside ditch with a subsurface drainage system, and construction of curb, gutter, and sidewalk improvements along a portion of Old Redwood Highway. Prior to the Town's construction, PG&E relocated existing utilities to accommodate the new culvert.

These improvements will strengthen the Town's storm drainage infrastructure, reduce the risk of property damage, improve roadway safety during major storms, and enhance pedestrian conditions along the corridor.

Project Funding

The proposed project is funded entirely through the Drainage Mitigation Fund. The purpose of the Drainage Mitigation Fund is to provide for construction of drainage facilities to mitigate cumulative drainage impacts arising from new development. Revenues are derived from development impact fees. Drainage improvements required to mitigate drainage impacts or provide necessary drainage facilities for a specific project are funded by that development directly, outside the Drainage Mitigation Fund.

Milestone Level Project Schedule

  • Design Completed: April 2026
  • Construction Begins: August 3, 2026
  • Construction Ends: October 31, 2026

Three-Week Lookahead Schedule

  • Week of 11/2 - Grind asphalt. Begin excavation for box culvert installation.
  • Week of 11/9 - Box culvert installation. Install HDPE liner.
  • Week of 11/16 - Continue HDPE liner installation. Install sewer lateral.

Project Team

  • Design: GHD, Inc
  • Construction: Cats 4 U, Inc.
  • Construction Management: GHD, Inc.