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Introduction
During the July 1, 2008 City Council Study Session and the September 2, 2008 Council meeting, the City Council identified SE 20th Street as a high priority area needing non-motorized improvements. The project goal is to provide non-motorized improvements on SE 20th Street from 228th Avenue SE to 212th Avenue SE. Non-motorized improvements will include pedestrian and bicycle facilities.
Project Update
Thank you for your comments, suggestions, and questions about the SE 20th Street Non-Motorized Improvement Project.
August 2 2011
The green bike lane will be installed on this date. Please see "Updates" tab above for the most current information on the installation.
May 2010
Construction is currently underway. Please see "Updates" tab above for the most current information on the construction schedule. Construction is scheduled to be completed in September 2010.
March 2010
Utilities have been working on SE 20th ST to relocate power, phone, fiber optics, water, and gas. Construction updates can be viewed in the Updates tab above.
On March 2, the City Council approved a new contract with the Watershed Company in the amount of $46,295 to provide inspection and monitoring services for wetland mitigation during construction. The Watershed Company will provide assistance during construction, including inspection and reporting, as well as provide long term monitoring (5 years) of the wetland mitigation component of the SE 20th Street Non-motorized improvement project. This work is required by the City’s SEPA and Shoreline Substantial Development Permits. The Watershed Company will assist City staff to respond to contractor requests for information (RFI’s), change orders, and design changes that may arise during construction.
The Notice to Proceed with construction has been issued for March 15, 2010. Premium Construction will begin mobilizing equipment, surveying, and setting up erosion control for the first two weeks. Clearing and grubbing will follow. For a detailed schedule, go to the Timeline tab above and click on schedule.
January 2010
Puget Sound Energy beginning to relocate utility pole conflicts with non-motorized improvement design. Sammamish Plateau Water and Sewer District working on final pavement patching. Updated timeline for project. On January 19, the City Council approved a supplemental contract with the Transpo Group in the amount of $46,000 to provide construction engineering services. Their new work will include assisting City staff with requests for information (RFI's) during construction, processing change orders, and participation in investigations, meetings, and negotiations with the City's contractor involving claims, and providing the City with as-built drawings of the project improvements. The City Council also approved a contract agreement with the State of Washington Public Works Board to accept grant funding for the Urban Vitality Program.
December 2009
City Council awarded SE 20th Street construction contract to Premium Construction on December 1, 2009 for $1,556,715.82 with construction contingency of $233,507.18. Issued ROW permit for PSE pole relocation to begin in January 2010.
November 2009
Bid opening November 5th 2pm. Apparent low bidder is Premium Construction at $1,556,715.82.
October 2009
Advertise project. Received $1 million funding grant from State Public Works Board Urban Vitality Program.
September 2009
Complete 100% design of plans, specifications, and estimates. Received Army Corps permit approval. Met with utility agencies for utility relocation coordination.
August 2009
Complete 99% Design of plans and specifications.
July 2009
Shoreline Substantial Development Permit appeal period ended July 3, 2009. The Sammamish Plateau Water and Sewer District began construction of mainline sewer. The Non-motorized project submitted application for Army Corps permit. 90% design submitted for City review.
June 2009
June 12, 2009
Decision on City permits for Shoreline Substantial Development, SEPA, and Public Agency and Utility Exception issued. There is a 21-day appeal period ending on July 3, 2009.
May 2009
Design team worked to address wetland mitigation plan, City permits and SEPA comments on critical areas study. Design team working the develop final engineering plans.
April 2009
April 30, 2009 - Permit Application
Project Team submitted documents for the following permits: Shoreline Substantial Development Permit, SEPA Checklist, and Public Agency and Utility Exemption (PAUE)
March 2009
March 19, 2009 – Pre-application Meeting
The project team is required to submit plans for a Shoreline Substantial Development Permit and SEPA review. The project team met with City permit review staff to discuss submitted documents.
February 2009
February 10, 2009 – City Council Study Session
The project team presented two stormwater design alternatives for the Council’s consideration. Several alternatives were discussed including a conventional stormwater piped detention system and a gravel filled trench infiltration system. The gravel filled trench infiltration system will act as a rain garden and allow stormwater to infiltrate into the surrounding soils. When included with a concrete sidewalk, this system was estimated to be about $70,000 per 1000 linear foot less expensive when compared to a system using conventional detention pipe. When using the gravel filled trench system, the use of pervious pavement added about $50,000 per 1000 linear foot of cost to the project.
Based on the information presented, the Council directed staff to continue with the design of the SE 20th Street non-motorized project using the gravel filled trench infiltration system between the sidewalk and bike lane. The sidewalk material should be concrete and not pervious pavement.
Click for larger PDF version
Click for larger PDF version
December 2008
December 15, 2008 – City Council Study Session
The project team presented to the City Council several preliminary design alternatives that were shown to the public during Public Meeting No 2. The project team concluded with recommendations based on safety, environmental impacts, costs, and public input. The project team responded to questions from the City Council.
Based on design criteria that included safety, public input, environmental impact, construction costs, and operations and maintenance, the City Council indicated their preference for separated bike lanes on both sides of SE 20th Street and a pedestrian sidewalk on the north side. Several Council members indicated that more information was needed on the design options for the project drainage system before they could provide their opinion on the sidewalk paving material or whether to include planter strips in the project design. They asked staff to provide more information on using low impact development techniques to help them make their decisions.
City Council Members were provided with the below documents:
1. List of improvement options with public preferences as shown.
2. Public Works responses to public comments
3. Visualization showing separated bike lanes from standard sidewalk on north side with planter strip.
4. Visualization showing separated bike lanes from standard sidewalk on south side without planter strip.
5. Visualization showing multi-use path on north side.
Attachment 1 lists improvement options with the results from the public survey at the second public meeting. Each resident was provided with four colored dot stickers in order to select one option in four separate categories. Pros and cons of each option were listed for information purposes.
Attachment 2 shows comments and questions from the public with Public Works responses. Many of these questions were answered during the second public meeting.
Attachment 3, 4, and 5 shows visualizations provided at the second public meeting.
Several preliminary design alternatives have been analyzed by the project team that would provide non-motorized improvements on SE 20th Street. The purpose of this study packet is to provide City Council Members with information regarding the characteristics of each alternative. During the study session, Prior to proceeding with final engineering design, the project team requests that the City Council approve a resolution that would memorialize the preferred preliminary design alternative for non-motorized improvement on SE 20th Street.
December 3, 2008 – Public Meeting No. 2
The project team hosted a public meeting to discuss the non-motorized improvement project and the various options available for consideration. Where the first public meeting focused on introducing the project goals and timelines, the second public meeting focused on presenting information to the public that would allow them to select preferred options on the preliminary design of non-motorized improvements.
Materials from this meeting are available for viewing on the Public Involvement page.
October 2008
Contract with the Transpo Group to provide engineering professional services for preliminary design and construction documents.
September 2008
September 24, 2008 – Public Meeting No. 1
Public Works staff conducted the project’s first public meeting with over sixty (60) residents participating in a question and answer session as well as a survey of public reaction to numerous options for road cross sections. Public input and more detailed construction costs estimates will be provided the City Council who will approve the ultimate road cross section design.
Materials from this meeting are available for viewing on the Public Involvement page.
Contract with CH2M HILL to conduct additional ground surveying.
August 2008
Contract with CH2M HILL to conduct ground surveying.
Contract with Applied Professional Services (APS) to conduct underground utility markings. APS conducted field work the weeks August 18 through August 27, 2008.