Description: The City of Sumner is proposing to add general purpose lanes and non-motorized facilities on Traffic Avenue between the five lane, E. Main Street Bridge, over the Puyallup River and the five lane section of Traffic Avenue extending north towards downtown Sumner. The most significant section of work will include adding a lane in each direction to the existing two lanes bridge crossing over SR410. This would be done by building a separate parallel structure to carry new general purpose lanes and non-motorized facilities. The project will reconfigure intersections at each end of the existing SR410 overpass that connect to the SR 410 access ramps and Thompson Street. The south end of the project will connect to Puyallup’s Riverwalk Trail, the Sumner Link Trail, and Pierce County’s Foothills Trail system. Non-motorized facilities will be installed through the length of the project to provide an ADA accessible pathway connecting to the Sound Transit Sounder Rail Station.

Associated Documents:
Exhibit_Utilities Fig
Updated Chklst-11-26-18
Vicinity and Project Area Map

Proponent: City of Sumner
Project Number: PLN-2017-0005
Location of Proposal: Sumner, WA 98390
Lead Agency: City of Sumner

The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030 (2)(c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request.

This DNS is issued under 197-11-340 (2); the lead agency will not act on this proposal for 14 days from the published date below.

Responsible Official: Ryan Windish
Position/Title: Director of Community Development
Phone: (253) 299-5524
Address: 1104 Maple Street Suite 250, Sumner, WA 98390
Published Date: December 5th, 2018


Conditions of approval

  1. The City shall provide opportunity for the Tribes to review and comment on final design of the proposed overpass/bridge project.
  2. If new development is proposed within 200 feet of the Floodway or Ordinary High Water Mark, then prior to permit issuance for that portion of the development the proposal must obtain a Substantial Shoreline Development Permit.
  3. If the footprint of any new development is proposed within the floodplain, then additional analysis consistent with SMC 15.52, SMC 16.40 and SMC 16.56 must be provided as part of the final design.
  4. In the event that archaeological materials are encountered during the development of the property, an archaeologist shall immediately be notified and work halted in the vicinity of the find until the materials can be inspected and assessed. At that time, the appropriate persons are to be notified of the exact nature and extent of the resource so that measures can be taken to secure them. In the event of inadvertently discovered human remains or indeterminate bones, pursuant to RCW 68.50.645, all work must stop immediately and law enforcement should be contacted. Any remains should be covered and secured against further disturbance, and communication established with local police, the DAHP, and any concerned tribal agencies.
  5. A noise study that quantifies and analyzes the project’s potential noise impacts and mitigation measures will be completed as part of the NEPA process and in accordance with WSDOT protocols and standards.
  6. This project shall comply with the approved HMP associated with the Shoreline substantial development permit.