Hillsboro Tribune, Olivia Singer Tuesday, February 19, 2019
There are seven years left in the development of the Willamette Water Supply Program.
Roughly halfway through a massive $1.2 billion project creating an additional water source for cities across Washington County, including Hillsboro, officials say it’s still on track to go live in 2026, and the next few years will see lots of construction in the region.
COURTESY PHOTO – A map and schedule of planned projects within the new water system development.
Since 2012, the Tualatin Valley Water District and the city of Hillsboro have been partnering to build the Willamette Water Supply System, which will draw in water from the Willamette River near Wilsonville through a new pipeline system to Hillsboro.
It’s an effort to increase water supply for the projected growth Hillsboro and neighboring cities are expecting to see in the next couple decades, an opportunity for Hillsboro to have more than one water source — which most surrounding cities do — and it’s a seismically resilient water system, TVWD media and community relations coordinator Marlys Mock said.
Coordinators are proud of the work they’ve done up to this point, Mock said, with 96 percent of the money spent on the project so far spent locally, all completed construction done by local contractors, and with minimal disruption construction-wise, coordinating with local jurisdictions to build the pipeline at the same time as road projects, lessening traffic and construction impacts and reducing project costs.
“(The project) has been broken up (into sections) partly because of jurisdictional boundaries, but also so that local contractors would have an ability to bid and win the work,” Mock said. “We didn’t want such an enormous project that it would take an international company to do, and so that effort has worked because so far all of our contractors are local.
The pipeline will run through South Hillsboro — from Southeast Blanton Street to Tualatin Valley Highway, to Southeast Frances Street and Southwest Farmington Road to Southeast Blanton Street — with some of that portion of the project’s construction already underway. Project managers were able to coordinate with the new construction happening in South Hillsboro, building the pipeline at the same time the major parts of construction take place, Mock said.
More local construction, including the Cornelius Pass Pipeline Project from Southeast Frances Street to Highway 26, is expected to begin in 2021 and be completed in 2023, according to the project map.
The additional water supply will serve well for the region’s future, Mock said.
“After a big earthquake, like what they are expecting, this is the only system that will be up and running,” Mock said. “So for the regional recovery aspect and trying to get water back online in weeks or days instead of months or longer, (it is) really important for that.”
Mock added, “Again, the additional source for Hillsboro so that they are not so dependent on one, and then we will still have a connection with the City of Portland, but this also gives us that local ownership and control. … To own your own system, that’s pretty great.”
Mock said other cities, including Beaverton, are likely to join in on the partnership. But whether they choose to or not, the water system will serve as an emergency backup for them.
“We hope to have emergency connections along the way to other communities, so even if the City of Sherwood decides they don’t want to become part of this partnership, they still have an emergency intertie so that if something happened to their source, they could get water from us,” Mock said. “But the more partners that come on, the better.”
The development of an additional water supply through a partnership “supports the region’s plans for responsible growth within the urban growth boundary,” coordinators said. “There is enough water for today — but steps need to be taken now to have an adequate supply to meet future demands and provide greater safety and reliability.”
“The proposed 2019 water rate adjustments varied by customer class in order to ensure each class is paying their fair share based on how customers use the City’s water system and how much water they use,”
Water rates will rise by up to 20 percent for some of Hillsboro’s businesses, and by smaller amounts for single-family residential households, starting in 2019.
The Hillsboro Utilities Commission approved rate increases for the New Year, the city announced this week. Increases will also affect water customers in Cornelius, Gaston and the L.A. Water Cooperative in Laurelwood, which buy their water wholesale from Hillsboro.
The rate increases vary by customer class. The largest increase is for irrigation, which will see a 20 percent hike. Multi-family residential, commercial and public entities will shoulder a 14.7 percent increase — more than 4 percentage points less than what was originally proposed, as the commission decided on a somewhat smaller increase “after receiving input from Hillsboro community members during the rate setting process,” the city stated in a news release.
Increases for single-family residential, nonprofit and industrial customers will stay in the single-digit percentages. Single-family residential customers will see a 5 percent increase, nonprofits will experience a 6 percent increase and industrial water bills will go up by 8.5 percent.
The typical single-family residential customer will see their bill increase by about $1.61, according to the City of Hillsboro.
The water rate increase is greater for Hillsboro’s wholesale customers. Cornelius’ water rate increase is approved at 9.2 percent. Gaston and Laurelwood will get a 10.9 percent bump in rates.
For years, partners have been preparing to transform this reach of Chicken Creek. In 1996, thanks in part to the grassroots support of Friends of Tualatin River National Wildlife Refuge, the US Fish & Wildlife Service purchased the surrounding land and initiated restoration efforts. In 2009, a half-mile upstream from the refuge, neighbors on Green Heron Drive began working with the City of Sherwood, contractors, and other partners to enhance the creek near its crossing with busy Roy Rogers Road. Since 2017, the US Fish & Wildlife Service has been creating opportunities for volunteers to do hands-on creekside restoration near the southern edge of the refuge.
More recently, partners embarked upon a long-awaited project that will realign Chicken Creek to its historic path, embracing the role that beavers can play in the placement of woody debris and revegetation. Project steps include modeling and excavating the historic path of the creek; rerouting and filling in the current channel; removing invasive species and replanting native vegetation; reestablishing a creek connection to the floodplain; and beginning long-term monitoring.
“When Hillsboro built its new city hall, the Hillsboro Civic Center, in 2005, it was built to withstand a major earthquake. Likewise, the city’s major construction project building a new water supply line from Wilsonville to Hillsboro, is being built to keep water pipes intact, even during an earthquake.”
Locals say cities are working to protect the region, but a massive quake will still cause havoc.
The “Big One” will devastate the Portland area even more than scientists expected, according to a new state geologists’ study of how a major earthquake will affect the tri-county area.
The study, released Thursday, March 15, found that a magnitude 9 earthquake centered off the Oregon Coast in the Cascadia Subduction Zone would cause tens of thousands of casualties in the Portland area, displace tens of thousands of residents from their homes, and cost tens of billions of dollars in building damage.
Virtually all of western Washington County’s population centers are within an area shaded red — the second-highest level of danger — on a risk map released along with the study by the Oregon Department of Geology and Mineral Industries.
The study estimates Hillsboro would be second only to Portland among cities in the metro area in forecast damage from a major Cascadia earthquake.
Depending on whether the magnitude 9 offshore quake occurs during the daytime or the nighttime, there could be as many as 7,700 casualties in Washington County alone, the study warns.
Up to 121 people could die immediately in an earthquake in Hillsboro, according to the study. In Forest Grove and Cornelius, the study estimates about 41 dead between the two cities.
As many as 14 percent of buildings could be total losses in the county, with the cost to repair damaged buildings estimated between $7 billion and $11.6 billion in today’s dollars.
Across the county, up to 37,700 people could be displaced for an extended period, according to the study. In the tri-county region, the estimates for long-term displaced range from 16,800 to 85,300.
Casualties, damage and displacement are expected to be higher if the soil is saturated — in other words, if it has been raining and the ground is soft, as it is for much of the year in northwestern Oregon. An earthquake that strikes during the day is expected to be deadlier as well. The top end of estimates represents the worst-case scenario, in which the soil is saturated and the quake hits during daytime hours.
While the eastern end of the region, including the Gresham area, is not expected to be as hard-hit as Portland and its Westside suburbs, damage is still forecast to be widespread as far as the Cascades.
“Although damage estimates vary widely throughout the study area, no community will be unharmed,” the authors concluded.
Recovering from a Cascadia earthquake won’t be just a matter of putting out fires and stemming floods. There will be region-wide challenges to restore power, bridges and freeways, provide emergency medical care and assure food and water can be delivered.
It will take months just to inspect homes and other damaged buildings to see if they are safe. Meanwhile, many will have to find other shelter, and some work places will have to be closed or relocated.
The Forest Grove Sustainability Commission, which advises the Forest Grove City Council on environmental issues, recently held an event at which Stacy Metzger dispensed earthquake preparedness advice.
Metzger volunteers as the “Map Your Neighborhood” coordinator for Forest Grove Fire & Rescue.
“For Forest Grove alone, the prediction is an earthquake of this size would create $496 million in property damage, 2,200 people in need of shelters, nearly 600 injuries (142 of which would require hospitalization), and 36 fatalities,” Forest Grove Fire & Rescue reported on its official Facebook page, listing some of the projections for the city from the state geologists’ study.
Such an earthquake is hard to imagine and difficult to predict, the agency said, but it would “undoubtedly devastate northwest Oregon.”
“This is a good wake-up call, and it is even more reason to get prepared for a large earthquake,” Metzger said Monday.
Metzger has two degrees in geology and spends a lot of time thinking about earthquake preparedness. But even she can’t predict what an earthquake will look like in her community of Forest Grove when it hits.
“I just say be prepared for the worst, and then you’re prepared for everything or anything, big or small,” she said.
Washington County and the Oregon Office of Emergency Management urge residents to be “two weeks ready,” keeping a two-week supply of necessities on hand in case of a major earthquake that cripples infrastructure and disrupts the transportation network. But Metzger encourages anyone who might find a two-week requirement daunting to start out by building a three-day kit. As she pointed out, you can always add to it later.
Hillsboro city officials have been preparing for a major earthquake for years, according to Tammy Bryan, emergency manager for the Hillsboro Fire Department.
“Prior to the release of this study, the region was reliant on information that was 20 years old,” Bryan said. “While this study does not tell us what will happen to specific homes or businesses, it does give us a greater understanding of potential impacts for our City. This information reinforces the need for continued planning, training, and collaboration to further reduce these impacts and become more resilient.”
When Hillsboro built its new city hall, the Hillsboro Civic Center, in 2005, it was built to withstand a major earthquake. Likewise, the city’s major construction project building a new water supply line from Wilsonville to Hillsboro, is being built to keep water pipes intact, even during an earthquake.
“While the threat of an earthquake may seem daunting, making a plan and identifying things you can do now to prepare can significantly reduce injuries and property damage,” the city wrote on its website about earthquake preparedness.
In the event of an earthquake, city services, such as police and fire, will likely be busy, so officials warn residents to prepare to deal with emergencies until help arrives.
“Emergency preparedness is a shared responsibility,” the city said. “Citizens need to have some basic first aid skills and supplies, and will need to fend for themselves for all but the most severe calls until the demands for service returns to normal.”
In addition to planning emergency kits, city officials urge residents to make homes “earthquake safe” by bolting down and securing water heaters, refrigerators, furnaces and gas appliances, and repairing leaky gas lines and fastening shelves, mirrors and large picture frames to walls.
New software, new findings
The new study shows more severe impacts than previous estimates. But it didn’t bring any surprises or point to any new prevention efforts that haven’t been considered before, said Dan Douthit, spokesman for the Portland Bureau of Emergency Management.
“We’ve already been expecting significant damages,” Douthit said, “and every year that goes by, we get more and more prepared.”
Emergency planners still will focus on the region’s greatest vulnerabilities, including more than 1,600 unreinforced masonry buildings in the city of Portland. Many of the buildings in Forest Grove, one of the region’s oldest cities, feature unreinforced masonry as well.
“We know that unreinforced masonry buildings are likely to collapse, especially during a Cascadia subduction zone earthquake,” Douthit said. “Those pose an immediate life safety risk for people in them and people walking by during an earthquake.”
But the new study, using more sophisticated Hazus software developed for the Federal Emergency Management Agency (FEMA), enabled scientists to drill down to damages at the neighborhood level as never before. The software is being constantly refined, incorporating real-world experiences from floods and earthquakes taking place around the world.
That enabled scientists to calculate the number of deaths, life-threatening injuries and hospitalizations that will occur in different neighborhood clusters in Portland and cities around the tri-county area.
Scientists now calculate there have been at least 40 large-magnitude earthquakes over the past 10,000 years along the 600-mile-long Cascadia subduction zone off the coasts of Oregon, Washington and Northern California. The most recent one occurred in 1700, and one recent study calculated there is a 15 to 20 percent chance that another one will occur in the next 50 years off the central and northern Oregon Coast.
Though considerably less likely, an earthquake of magnitude 6.8 epicentered in Portland’s West Hills would be even more catastrophic locally — causing more than twice the casualties and damages — according to the Oregon Department of Geology and Mineral Industries study.
State geologists plan to release a second phase of their study next year, charting the potential impacts to Columbia County and Clark County, Wash., to the north of the tri-county region.
Mark Miller and Geoff Pursinger contributed to this report.
WILSONVILLE, OR — City officials on Tuesday reopened Boeckman Road west of Southwest 95th Avenue after a three-month closure, which had allowed for the construction of a new roundabout where the future extension of Southwest Kinsman Road will connect to Boeckman Road, near Southern Glazer Wine & Spirits.
The reopening is a result of the roundabout project being completed a week early, officials said.
The $11.3 million Kinsman Road Project, which began in July 2016, has an expected completion date of summer 2018, according to the city’s project website. Once complete, commuters will have a new thoroughfare from Southwest Barber Street to Boeckman Road through what is still currently open fields and wetlands.
The project, officials said, is a key component of the city’s Transportation Systems Plan, which ultimately seeks to establish an interconnected system of transportation options for Wilsonville residents and visitors. Specifically, the Kinsman Road extension will provide a new route for large trucks as they traverse the city’s industrial districts, alleviating congestion on both Boones Ferry and Boberg roads, officials said. The project also gives public transit officials new options for routes in the city’s westside residential and employment areas.
New sidewalks, bike lanes, and a 10-foot-wide multi-use pathway along the Coffee Lake Creek wetlands will further complement the restoration of roughly 2.5 acres of natural habitat, officials said.
Also taking advantage of the project is the Willamette Water Supply Program, which seeks to install a 66-inch water pipeline under Southwest Kinsman Road as part of its effort to connect the mid-Willamette River to Hillsboro’s water infrastructure.
New water system, renewing the tax levy and South Hillsboro construction will all be on the city’s radar next year.
Friday, 30 December 2016 | Written by Travis Loose, Hillsboro Tribune
Hillsboro city officials are preparing for 2017, and a new slate of projects on the horizon will require more of a commitment than most New Year’s resolutions if they’re going to be launched next year.
As work continues on construction in South Hillsboro, city officials are setting their sights on several other projects in the next several months, according to city spokeswoman Corinne Weiss.
“Success to us means working together (with residents and area businesses),” Weiss said. “This coming year we have many great opportunities, and of course some challenges, but we will work to maintain excellent services and plan for a bright future for Hillsboro.”
One of the most important initiatives is convincing voters to renew the city’s longstanding local option tax, which is set to expire in 2018. The tax helps pay for police and fire department services and the city’s parks department.
If the city council follows through with city staff’s Dec. 6 recommendation, residents could vote on the tax renewal as early as May 2017.
In the city’s water department, a years-long plan to build a shared water system with Tualatin Valley Water will continue, as crews work to build the Willamette Water Supply Program pipeline, which will draw water from Wilsonville and pump it to Hillsboro.
Project officials anticipate construction at the intersection of Cornelius Pass Road and the Tualatin Valley Highway to begin in the early part of 2017.
A large portion of the 30-mile pipeline will pass through the South Hillsboro development as well, which will also see more construction throughout the year.
Colin Cooper, the city’s planning director, said 2017 will be about tying together community aspirations and the city’s plans.
“A significant focus (of the year) will be on improving mobility and a balance of housing options for community members,” Cooper said.
Some of that work will focus on the continued revitalization of downtown Hillsboro and the future of the former Hank’s Thriftway property, which the city acquired earlier this month. No plans have yet to be announced for the property, but the city is said to be looking at a mix of residential and commercial uses for the site.
The New Year will also mark a new chapter for community areas for leisure, play and relaxation.
“One of the best things about living or working in Hillsboro is our great quality of life, of course made even better by all our fantastic parks, trails and natural areas, fun recreational programs and a healthy and growing arts and culture scene,” said Parks & Recreation Director Dave Miletich. “In 2017, we will continue to offer great things, and new plans include opening the Orenco Woods Nature Park, developing a plan for the city-wide Crescent Park Greenway and creating a Community Cultural Arts Strategic Plan.”
While the Orenco Woods Nature Park will open in February, the Crescent Park Greenway is still in the planning stages.
Envisioned as a natural greenway loop, wrapping 16 miles around the city, Crescent Park will be a collection of natural areas, parks and trailheads connected by “linear greenspace,” Weiss said.
To help inform the plan’s details, city officials throughout the year will invite residents to community events to view content developed by city staff and note areas of interest.
“Proactive outreach and communication are essential to our ability to deliver great services to the community and to plan innovative, effective solutions to challenges we face as a growing community,” Weiss said.
Part of that outreach includes continuing to build on the city’s commitment to its youth, Weiss said.
“From providing School Resource Officers, to maintaining the sports fields at our high schools, to partnering on safe routes to schools, to helping support (Hillsboro School District) events and programs, such as the College and Career Pathways Program, the city remains committed to working together to give our students the best chance for success,” Weiss said, also noting the community events put on by the city, such as Celebrate Hillsboro, Pix on the Plaza, and OrenKoFest.
“In 2017, we will build on our efforts to engage with our diverse residents, partners, and businesses in creative ways, so that the Hillsboro community can continue to grow great things together.”
An extension of Kinsman Road is under construction, with the pipeline planned for its right-of-way
Written by Claire Colby, Wednesday, 09 November 2016
The first pieces of the Willamette Water Supply Program (WWSP) pipeline have been laid in the Kinsman Road Extension project.
Created by the Tualatin Valley Water District (TVWD) and the City of Hillsboro, the WWSP is going to tap into the mid-Willamette River at Wilsonville to create additional water supply source for the TVWD and Hillsboro. Although the pipeline will run through Wilsonville, the City of Wilsonville won’t be paying for construction or using the water. The City is, however, partnering with WWSP and funding the $8.3 million Kinsman Road Extension. Negotiations with the WWDP about compensation for the use of the Wilsonville water treatment plant and for other inconveniences the City will undergo are ongoing.
Design for the WWSP started in January 2014 and has been in various phases of design with construction starting in 2016. Despite the City of Tualatin opting out in August and the City of Beaverton still deliberating if they want to be involved in the project, the first steps in the regional water system partnership to supply additional water to the area are underway.
Starting with its intake source at the Wilsonville water treatment plant in the mid-Willamette, the nearly 30-mile stretch of mostly 66-inch diameter water pipeline will have water storage tanks and water intake improvements to the existing water treatment plant.
The construction project began in July with work to extend Kinsman Road, combining existing infrastructure projects to help minimize congestion and reduce expenditures by not having multiple construction crews and management agencies, according to WWSP Media and Community Relations Coordinator Marlys Mock.
For the Kinsman project, a nearly half-mile extension of Kinsman Road, north of Barber Street to Boeckman Road, is set to improve north-south access, improve freight and residential mobility and add bike lanes, sidewalks and nature crossings.
While roadway infrastructure is being added, an upsized sanitary sewer pipe as well as a section of the WWSP water pipeline will be installed in the right-of-way. The estimated $8.3 million Kinsman project is being funded by the City of Wilsonville with partial federal aid assistance from the Federal Highway Administration, providing $3.6 through a combination of two federal grants.
“This cost includes design, property acquisition, permitting and construction for the roadway project,” Civil Engineer Zach Weigel said. “The project also includes upsizing and relocation of a sanitary sewer pipe at an additional total estimated cost of $1.4 million of which no federal grant money is included.”
One of the City’s WWSP project advisors, Mike Kohlhoff, said that the City is still in negotiations with the WWSP about compensation for the use of the water treatment plant and for other inconveniences the City will undergo. Kohlhoff said that they hope to reach an agreement by the end of the year but that there is no set timeline.
Whatever the negotiated figure comes out to be, according to Mock, the project is taking advantage of every cost-cutting measure available without sacrificing quality, including using Portland-based Northwest Pipe Company. By using the local company, the project is saving trucking costs while hauling the 66-inch pipes, benefitting the local economy.
Although the WWSP is priced in total at $1.2 billion, Wilsonville taxpayers shouldn’t be concerned about their taxes increasing.
“It’s not paid by taxes at all,” Mock said. “The project is funded by ratepayers in the TVWD and City of Hillsboro service district area and there’s going to be a bond spread out over time.”
Hillsboro Tribune Written by Travis Loose, October 27, 2016
The Willamette Water Supply Program saw its first bit of tangible progress this month, bringing one step closer the Willamette River-sourced secondary water supply for Hillsboro and the Tualatin Valley Water District service.
The primary source of water for Hillsboro is the Tualatin River, fed by the Hagg Lake and Barney reservoirs.
On Oct. 10, officials with the project, in coordination with engineers working on the Kinsman Road Extension in Wilsonville, installed the initial stretch of pipeline in the right-of-way as part of the city’s Kinsman Road construction project — a nearly half-mile long road extension with bike lanes and sidewalks north of Barber Street to Boeckman Road.
“This is a historic moment toward the completion of the Willamette Water Supply System,” said Program Director Dave Kraska. “Installing this first pipe is the beginning of following through on the vision and good planning taken by TVWD and the city of Hillsboro over the years. It is a big step forward in making this important regional reliable drinking water supply a reality.”
The Willamette Water Supply Program is a partnership between the city of Hillsboro and TVWD to bring water to ever-expanding Washington County.
Tualatin Valley Water District serves about 22,000 residents in Washington County from Hillsboro to Beaverton and Tigard. When finished, the project is expected to supply water to more than 300,000 residents and some of the state’s largest employers for the next 100 years.
The project will take a decade to complete, with several portions of the project to be installed as areas work on previously planned road construction.
According to project officials, the Kinsman Road construction represents one of many coordinated, combined construction partnership opportunities along the 30-mile water pipeline’s route, which will ultimately result in significant cost savings for water ratepayers by eliminating the need for multiple construction projects.
Marlys Mock, the project’s spokeswoman, said officials are constantly looking for ways to improve the pipe’s final route — while working with each of the projects’ engineers — in an effort to prevent costly projects from becoming even more so as a result of incorporating the pipe’s construction.
This was evident in a recent pipeline route alteration on Cornelius Pass Road in Hillsboro.
“The Cornelius Pass Road change eliminates the previous 205th/206th (Avenue) ‘bump out,’ which will decrease the route length and the number of stream crossings,” Mock told the Tribune.
“The revised route will also save construction time and project cost. Through careful evaluation of the proposed routing we are creating a more efficient, cost effective and less intrusive project.”
A second alteration, along the Tualatin-Sherwood route near Sherwood, was made to protect natural resources in the area, said Mock.
“The (new) route also takes advantage of possible opportunity projects — lessening traffic impacts along the busy Tualatin-Sherwood Road by combining efforts with Washington County,” Mock said, “which is (also) planning road improvements along the preferred pipe alignment.”
The next stick of pipe will be laid in conjunction with the 124th Avenue Extension Project — an interim two-lane road between Tualatin-Sherwood and Grahams Ferry roads. The project, which Mock anticipates will begin in November, will also construct safety improvements on Tonquin and Grahams Ferry roads.
Completion of the Kinsman project is projected for late 2017, and late 2018 for the 124th Avenue project.
For more information on the Willamette Water Supply Program, the pipeline’s route, or the partnered construction projects, visit ourreliablewater.org.
The first pieces of pipe for the Willamette Water Supply are installed, marking a significant milestone for the regional water system partnership between the Tualatin Valley Water District (TVWD) and City of Hillsboro as pipeline construction is now underway.
“This is a historic event,” said Dave Kraska Program Director. “Installing this first pipe brings to life the vision and good planning taken by TVWD and the City of Hillsboro over the years. It is the first of many pieces of pipe that will stretch across Washington County, creating a regional, reliable and resilient drinking water supply.”
The system includes about 30 miles of mostly 66-inch diameter water pipeline, water storage tanks, water intake improvements on the mid-Willamette River at Wilsonville, and a water treatment plant. The first pieces of pipe were installed on the Kinsman Road Partnership Project by crews from Emery & Sons Construction Group based out of Salem, Oregon. The City of Wilsonville, with partial federal aid assistance from the Federal Highway Administration, is constructing the project. Collaboration on the cost-saving opportunity project began in July with work to extend Kinsman Road. Partnering on existing infrastructure projects helps minimize traffic and construction impacts to the nearby community, and saves money by sharing construction and project management costs among agencies. Pipe for this project is being produced by Northwest Pipe Company, based in the Portland area. Local production of the large-diameter pipe will save the Project and ratepayers in trucking costs, and benefits the local economy.
Two other projects along the pipeline route are underway, including a partnership with Washington County for work on the 124th Avenue Partnership Project, which extends SW 124th Avenue north from Wilsonville to Tualatin-Sherwood Road, and initial work on the South Hillsboro Pipeline Project, the portion of the pipeline to be installed in coordination with the extension of Cornelius Pass Road through the new South Hillsboro development.
The mid-Willamette River at Wilsonville will be the new water supply source for the Willamette Water Supply System. Although current demands are met through other sources, the addition of a new source will provide improved water supply reliability and system resiliency. Developing an additional water supply through a partnership supports the region’s plans for responsible growth within the urban growth boundary. The earthquake-resilient system is on schedule to deliver water by 2026. For more information about the Willamette Water Supply Program, visit www.OurReliableWater.org or call 503-941-4570.
Written by Travis Loose, Thursday, 25 August 2016, Hillsboro Tribune.
“Known as the Willamette Water Supply Program, the city and TVWD plan to build a joint-water system by 2026, which would draw water from the Willamette River in Wilsonville for the two water providers.”
Local officials are calling it the largest capital infrastructure project in Oregon’s history.
Priced at $1.2 billion, a new 30-mile-long water pipeline stretching from Wilsonville to Hillsboro is currently in the works, and is expected to become a new source of drinking water for more than 400,000 people in Washington County who count on Tualatin Valley Water District and the city of Hillsboro to keep their taps running.
Known as the Willamette Water Supply Program, the city and TVWD plan to build a joint-water system by 2026, which would draw water from the Willamette River in Wilsonville for the two water providers.
Much of the cost of the project is paid for by ratepayers. Water rate increases in both Hillsboro and TVWD — which provides water to about 1/3 of Hillsboro’s residents — were approved over the past few weeks.
Hillsboro gets its water from the Tualatin River and Hagg Lake, but that won’t be able to sustain Hillsboro’s expected population boom over the next several years. The city is likely to become Portland’s second largest suburb within 20 years and city planners have said they need to find additional water to meet demand.
“The Tualatin River Watershed has been, and will continue to be, a reliable drinking water source for Hillsboro,” said city water department spokeswoman Tacy Steele. “However, the addition of the mid-Willamette River as a second source will not only provide additional water needed to meet projected growth in the region, but will also bring added value to existing customers by reducing risks associated with dependency on a single source during emergency events.”
It was, in fact, emergency concerns related to the long-predicted Cascadia Subduction Zone earthquake that prompted the pipeline discussion in the first place.
In 2008, the U.S. Bureau of Reclamation released the results of its seismic assessment of Scoggins Dam at Hagg Lake. The bureau determined that a large-scale subduction zone earthquake off the Oregon Coast could cause total dam failure.
Knowing a greater supply of water would be needed as more new residents move to the county, a long-term plan to seismically improve and raise the dam was briefly considered, Steele said. But because working with the federal government — which owns the land on which the dam sits — can often take more time, funding requirements dictated the city and TVWD move sooner on seeking a solution.
A plan to dig new wells was thrown out, along with the possibility of becoming a wholesale water customer of Portland. After roughly three years of studies and community outreach, city and TVWD officials opted on partnering to create an entirely new system: the 30-mile Willamette Water Supply pipeline.
“Hillsboro currently only has one source (of water),” said Marlys Mock, spokeswoman for the Willamette Water Supply Program. “If something were to happen to the Hagg (Lake) source, you’re kind of stuck. Having the additional source is huge.”
In May, Hillsboro staff worked with city officials in Salem to negotiate the purchase of a portion of Salem’s mid-Willamette water right near Wilsonville — a deal that cost Hillsboro $16.2 million.
With the water source secured, city and TVWD staff began working with cities between Hillsboro and Wilsonville to find opportunity projects to piggyback onto for organizing construction.
The first two projects that will see actual pipeline put in the ground will occur during unrelated road work already planned at Southwest 124th Avenue in Tualatin and at Southwest Kinsman Road in Wilsonville later this year.
Other pipeline and road improvement projects in King City, Beaverton and Hillsboro are expected to follow over the next 10 years, along with construction of a new water treatment plant and storage facilities near Cooper Mountain in Beaverton.
“Owning your home or car, instead of renting, gives you more control over your property and is less expensive in the long run,” said Cousins with TVWD. “That’s really what TVWD is trying to achieve through the Willamette Water Supply Program. Ownership of our primary water source assures the district’s customers of a reliable, long-term water supply that is going to be more affordable over time.”