Public engagement

Date: Thursday, March 14, 2024

Time: 4PM-5PM

Location: 97th Avenue Southeast & Southeast 34th Street, Mercer Island

Event Purpose

Major construction activities are scheduled to begin at Fruitland Landing and along 97th Ave S.E. in early April. During this neighborhood conversation on March 14, the project team shared information about the type of construction activities neighbors would see, estimated timing of work, and potential impacts to residents. The project team also provided an overview of the entire construction project and responded to neighbor questions.

• Fruitland Landing / 97th Ave S.E. Community Conversation Event Summary

Date: Friday, October 20, 2023

Time: 4:30PM-5:30PM

Location: S.E. 35th St and 96th Ave S.E., Mercer Island, 98040

Event Purpose

Construction on the I-90 trail between North Mercer Way and Southeast 35th Street and East Mercer Way and Southeast 35th Place is ramping up. A portion of the trail closed to the public on October 23. During this neighborhood conversation, the project team shared information about detour routes, upcoming closures, and what to expect from construction work and answered questions from community members.

• I-90 Trail Community Conversation Event Summary

Date: Tuesday, September 28, 2023
Time: 4:30PM-5:30PM
Location: 90th Place Southeast, Mercer Island, WA, 98040

Event purpose

Construction on 90th Place Southeast has been progressing for over a year. Paving on 10/4 and 10/5 is an important milestone because it must be completed after all pipe installation and underground construction is complete.

Additionally, paving activities are very impactful to neighbors since there is limited access to the cul-de-sac and the work includes driveway approaches. This neighborhood conversation allowed the project team to share information with neighbors about what to expect during the paving process as well as highlight the reduction in construction activities after paving is complete.

Materials

• Event summary

Dates: Saturday, July 15, 2023
Time: 10:15 PM- 4 PM
Location: near Mercerdale Park on SE 32nd Street, Mercer Island, WA, 98040

Event purpose

The Mercer Island Summer Celebration provided a unique opportunity to reach many Mercer Island residents at a community event. The King County Wastewater Treatment Division community relations team hosted a booth to share information and answer questions about the North Mercer Island/Enatai sewer upgrade project and educate booth visitors about wastewater treatment.

Materials

• Event summary

Date: Friday, May 19, 2023
Time: 9am-11:30am
Location: Luther Burbank Park, at the corner of SE 26th Street and 84th Ave SE

Event purpose

Bike Everywhere Day provided a unique opportunity to reach the biking community on Mercer Island, or those who regularly commute through Mercer Island on their bikes. The King County Wastewater Treatment community relations team hosted a booth to share information and answer questions about the North Mercer Island/Enatai sewer upgrade project and discuss bike detour routes due to construction.

Materials

• Event summary

Online open house, September 2021 - February 2022                                                                                                     

February 20 - April 15, 2020

The following information was available for review in English, Spanish, Simplified Chinese and Traditional Chinese:

• An interactive project area map
• Brief outline of project progress to date
• Project overview and schedule
• Construction information for:
  
  • Upgraded North Mercer Pump Station
  • Residential streets
  • North Mercer Way and Island Crest Way
  • I-90 Trail
  • Fruitland Landing
  • Enatai Beach Park
• Construction methods, including in-water work and Horizontal Directional Drilling
• An opportunity to provide optional feedback

https://publicinput.com/nmesewerupgrade

Materials

• Online open house (archived version)

• Online open house summary (February 20 – April 15, 2020)

King County will host open houses on January 29 and 30 to share the latest information about the North Mercer Island/Enatai Sewer Upgrade Project:

Wednesday, January 29
6:30 - 8 p.m.
Mercer Slough Environmental Education Center
1625 118th Avenue S.E., Bellevue, WA

Thursday, January 30
6:30 - 8 p.m.
Mercer Island Community Center
8236 S.E. 24th Street, Mercer Island, WA

There will be no formal presentation. Stop by anytime during the open house to learn about:

• The current status of the project and what we’re building
• What to expect before and during construction
• Restoration plans 

Meeting materials

• Postcard
• Event Summary
• What does the Wastewater Treatment Division do?
• Project Timeline
• Sewer Route Overview
• North Mercer Pump Station Construction
• North Mercer Pump Station - Post Construction
• Open Cut Construction on Residential Streets
• Construction on North Mercer Way and Island Crest Way
• I-90 Trail Across Mercer Island to See Major Construction
• I-90 Trail After Construction - Mercer Island
• Sewer work coming to Fruitland Landing and 97th Avenue Southeast
• Mercer Island Boat Launch and Work across the East Channel of Lake Washington – What’s happening?
• What to expect during construction at the Boat Launch and East Channel Crossing
• Installing the Siphon across the East Channel of Lake Washington
• Construction at Enatai Beach Park in Bellevue – what’s happening?
• What to expect after construction at Enatai Beach Park in Bellevue
• Installing a New Pipe Under the Enatai Hillside
• Fixing the Existing Enatai Interceptor

Mercer Island Condo Board briefing

September 24, 2019
Mercer Isle Condos,
2500 81st Ave SE, Mercer Island, WA 98040
6:30 p.m.

• Presentation 
• Summary 

Date: Saturday, August 24, 2019
Location: Enatai Beach Park at 3519 108th Avenue S.E.

We’ll be located near the REI Boathouse under the “Go with the Flow” banner logo on our tent. Members from our community relations team will be sharing project updates and answering questions about the North Mercer/Enatai sewer upgrade project. See you there!

Materials 

• Event summary

Date: Sunday, August 11, 2019
Location: north end of Mercerdale Park

Join us at the Mercer Island Farmers Market on August 11! The market will be located at the north end of Mercerdale Park on Mercer Island. Look for us under the “Go with the Flow” banner logo on our booth. Project staff will share project updates, answer questions and get you signed up for our mailing list. Hope to see you there!

Materials 

• Event summary

Date: Sunday, June 23, 2019
Location: north end of Mercerdale Park

Join us at the Mercer Island Farmers Market on June 23! The market will be located at the north end of Mercerdale Park on Mercer Island. Look for us under the “Go with the Flow” banner logo on our booth. Project staff will share project updates, answer questions and get you signed up for our mailing list. Hope to see you there!

Materials

• Event summary

Project staff sharing information with a community member at Mercer Island Summer Celebration.

Date: Friday, May 17, 2019
Time: 6-9 a.m.
Location: I-90 Trail entrance at S.E. 34th Street

Bike Everywhere Day tabling event

King County will host a station for Bike Everywhere Day to share the latest on the North Mercer Enatai Sewer Upgrade Project. Project staff will be available to share information and answer questions about the project.

Materials

• Announcement
• Project update

Thank you to everyone who stopped by our booth at Bike Everywhere Day to learn more about construction on the I-90 trail. If you missed us, read about what to expect when we start construction next year.

October 17, 2018
North Mercer Pump Station Neighbors Meeting

Materials

• Presentation
• Landscaping plans
• Meeting summary

Tuesday, June 12, 5:30 – 7:30 p.m.

King County’s project team will be walking the streets of the project alignment to discuss the detailed route with neighbors and answer questions about what to expect during construction.

Walk-and-talk 1: 97th Ave SE

• 5:30 – 6:30 p.m.
• Meeting location: Fruitland Landing Park

Walk-and-talk 2: SE 35th PL

• 6:30 – 7:30 p.m.
• Meeting location: West end of SE 35th PL

Materials

• Mercer Island Walk-and-Talks Summary

Date: Friday, May 18, 2018
Time: 6-9 a.m.
Location: I-90 Trail entrance at S.E. 34th Street

Bike Everywhere Day tabling event

King County will host a station for Bike Everywhere Day to share the latest on the North Mercer Enatai Sewer Upgrade Project. Project staff will be available to share information and answer questions about the project.

Materials

• Announcement
• Summary

Online open house

March 1 – April 2, 2018

The online open house reviewed:

• Detailed maps of the sewer upgrade route
• What we know now about construction
• Next steps for project design
• How we will work with you throughout the project
• A comment form was available to ask questions and share feedback on how King County can be a good neighbor.

Materials

• Postcard
• Flier
• Online open house (archived version)
• Online open house summary (March 1 – April 2, 2018)

Saturday, March 3, 2018
10 a.m. to 1:30 p.m.   

King County’s project team will be walking the streets of the project alignment to discuss the detailed route with neighbors and answer questions about what to expect during construction.

• Walk-and-Talk 1: North Mercer Pump Station to S.E. 22nd Way
  
  • 10 a.m. – 11 a.m.
  • Meeting location: North Mercer Pump Station, 7631 S.E. 22nd Way
• Walk-and-Talk 2: 78th Ave SE
  
  • 11 a.m. – 12 p.m. 
  • Meeting location: Intersection of 78th Ave SE and S.E. 22nd Way
• Walk-and-Talk 3: 24th Street and 81st Ave SE
  
  • 12:30 p.m. – 1:30 p.m.
  • Meeting location: Intersection of 78th Ave SE and 24th Street
• Walk-and-Talk 4: 90th Pl SE
  
  • 2 p.m. – 3 p.m.
  • Meeting location: 90th Place SE cul de sac

Materials

• Mercer Island Walk-and-Talks summary

Thursday, Nov. 9, 2017
6- 8 p.m.
Mercer Slough Education Center, 1625 118th Ave SE, Bellevue 98005  

Neighborhood Meeting for Southeast Lake Road

Please join King County Wastewater Treatment Division (WTD) on Nov. 9 to discuss the North Mercer/Enatai Sewer upgrade project and learn more about potential construction impacts to the Southeast Lake Road neighborhood. The meeting is intended to provide details on the Bellevue portion of the alignment. This includes pipe rehabilitation in the water from Enatai Beach Park to the Sweyolocken Pump Station.

Materials

• Invitation, 中文
• Agenda
• Summary
• Presentation (video of presentation below)
• Grinder pump fact sheet: Keeping sewage flowing during construction, November 2017

Thursday, Aug. 24, 2017
3-7 p.m.,
Enatai Beach Park
3519 108th Ave. S.E., Bellevue

Information Session

Join us for an information session at Enatai Beach Park! Stop by Enatai Beach Park on Thursday, August 24th anytime between 3 and 7 p.m. to learn more about the North Mercer Island and Enatai Sewer Upgrade Project. King County Wastewater Treatment Division representatives will be there to talk with you about the sewer route, potential construction methods and schedule. A section of the new sewer pipe will run through the park.

Monday, April 24, 2017
6- 8 p.m.,
presentation at 6:30 p.m.
Bellevue High School Library
10416 SE Wolverine Way, Bellevue, 98004

Technical Information Session: Bellevue alignment

Please join King County Wastewater Treatment Division for a discussion on the technical elements of the North Mercer Island and Enatai Sewer Upgrade Project. The meeting is intended to provide details on the Bellevue portion of the alignment. This includes horizontal directional drilling (HDD) under the Enatai hillside and pipe rehabilitation along the water from Enatai Beach Park to the Sweyolocken Pump Station.

Materials

• Invitation
• Agenda
• Summary
• Presentation
• HDD Fact sheet: Installing King County’s new sewer pipeline in North Mercer Island/Enatai

Wednesday, January 25, 2017
6 – 8 p.m.
Mercer Slough Environmental Education Center
1625 118th Ave SE, Bellevue

Thursday, January 26, 2017
6 – 8 p.m.
Mercer Island Community and Event Center
8236 SE 24th St, Mercer Island

Join us for an upcoming community meeting!

King County has finalized the route for an upgraded sewer pipeline in North Mercer Island and Southwest Bellevue. We hope you’ll join us at an upcoming community meeting to discuss:

• The pipeline route and how your feedback informed it
• Potential construction methods
• Pump station upgrades
• Upcoming design milestones and environmental review
• Opportunities for input into the project’s design

Materials

• Post card
• Agenda
• Presentation
• Newsletter, January 2017
• Enatai Neighborhood Community Meeting Summary, January 25, 2017
• North Mercer Community Meeting Summary, January 26, 2017
• Online Open House (available January 25 - February 22)

Sunday, August 21, 2016
10:00 a.m. - 2:00 p.m.
Enatai Beach Park

King County’s North Mercer Island/Enatai Sewer project team will be on hand to talk about the services we provide and elements of the project in Enatai Beach Park, along the water front, and by Sweyolocken Pump Station. You can walk the project area at Enatai with our team and talk about construction activities and restoration. We’ll have some fun activities for kids (and their parents) to learn about how to treat the sewer system well.

Materials

• Post card
• Fact Sheet

Tuesday, May 10, 2016
Holly Tree Lane Homeowners Association
Private residence

King County project team met with interested members of the Holly Tree Homeowners Association to provide an overview of the project, answer questions, and begin a dialog with residents who may not have attended recent community meetings.

Materials

• Briefing summary

Wednesday, March 2, 2016,
6:00 - 8:30 p.m.
Presentation at 6:30 p.m.
Mercer Slough Environmental Education Ctr.
1625 118th Ave SE , Bellevue, WA 98005

Thursday, March 10, 2016,
6:00 - 8:30 p.m.
Presentation at 6:30 p.m.
Mercer Island Community Center, Mercer Rm.
8236 SE 24th St, Mercer Island, WA 98040

Community meetings. Learn about the recommended alternative, upcoming field work to inform design, and project elements that are still being defined.

Bring your questions and thoughts to share with us!

Materials

• Postcard
• Bellevue-Enatai neighborhood community meeting
  • Agenda
  • Presentation 
  • Summary
• Mercer Island neighborhood community meeting 
  
  • Agenda
  • Presentation
  • Summary
• Recommended alternative
• Early design timeline
• Survey

Tuesday, Sept. 15, 2015
6:00 - 8:30 p.m.
Mercer Island Community and Event Center
8236 SE 24th St Mercer Island

Wednesday, Sept.16, 2015
6:00 - 8:30 p.m.
South Bellevue Community Center
14509 SE Newport Way Bellevue

Open house

Learn about the project options, get your questions answered, and share your thoughts.

Materials

• Postcard
• Projects options
• View online open house and provide comments.

July 11 - 12, 2015
Mercer Island Summer Celebration

Public outreach and wastewater education. King County's WTD's sewer inspection truck served as a travelling wastewater education center. Festival goers took a virtual tour of our pipes, learned about the service King County provides your area, and picked up some compost and green cleaning tips.

Materials

• Event photos