We’re officially rounding out the end of Spring conference season in Oregon, where we’ve continued to form lasting partnerships, meet the clients we serve, and showcase what we’re about. We love the opportunities conferences give us to support and connect with organizations rooted in the communities we call home.
OAME and APWA Oregon, the two most recent conferences we attended, are organizations we have a long history of partnering with. Read on to find out more about each conference and hear the why behind what makes each of them so special!
OAME Conference
The 35th Annual Trade Show hosted by the all-inclusive organization, Oregon Association of Minority Entrepreneurs (OAME) provided us with the opportunity to exchange ideas, talk to fellow partners and potential clients, and most importantly support the growth of minority-owned businesses.
We value having a presence at this conference, because enables us to show up directly for minority-run businesses and forge lasting partnerships – from prospective clients to new friends in the industry.
Complete with a booth and Otakians from engineering, architecture, marketing in full attendance, we got the chance to bring who we are to the table: a firm that listens to our communities and their local businesses and uses those connections to improve the project work we do daily.
APWA OR Conference
The American Public Works Association (APWA) is one of the most influential professional organizations in the public works field, dedicated to raising awareness about the vital role public works plays in the communities where we live. Fun fact, our own Ashley Cantlon, senior water resources engineer, is the Oregon chapter President – meaning we have a deep appreciation for our relationship with the organization.
Similarly to the OAME conference, this event allows us to be involved in one of the premier organizations for public works in the state, enabling better connections, better relationships, and better understanding of best practices and industry trends.
With a strong presence from Otak engineering leaders like Kevin Timmins, Amanda Owings, Henry Alaman, and Trista Kobluskie, we spoke with potential clients, new friends, and learned more about how we can enrich neighborhoods through the power of quality design. To mix things up a bit, we brought along a special APWA OR picture frame to encourage some photo opts!
Thank you to both these organizations for hosting us, and we can’t wait to come back next year!
Including five boardwalks, a bridge, and 20 retaining walls, North Creek Trail extends 2.5 miles outside Bothell, Washington to traverse sensitive wetlands and a canyon that holds North Creek itself. In leading the project, Otak provided trail and roadway, stormwater, and structural design as well as construction support services for the first phase of construction as the design of phases two and three were completed. That effort included review and responses to RFIs and close coordination with the County project manager and construction inspection staff.
An Urban Trail and Structural Design to Minimize Impact to Sensitive Wetlands
This urban trail segment connects an existing segment near SR 524 with North Creek Park. To minimize environmental impacts and simplify permitting, micropiles support the boardwalks that carry the regional trail over sensitive areas. A 1,383-foot, 14-span prestressed concrete girder bridge crosses the canyon where North Creek runs, including 800 feet of surrounding wetlands. In accommodating ADA grades along the crossing, several portions of the bridge are 30 to 40 feet in the air. Because of the difficulty and sensitivity of constructing a long bridge through the wetlands, a detailed alternative analysis was performed evaluating varying span lengths, foundation types, construction methodologies, access, along with pier and superstructure types. The pedestrian bridge over North Creek would be constructed as part of phase three.
An alternatives analysis process led to a selected concept for three roundabouts along the existing alignment of NE 171st Street in Woodinville, Washington. The design alleviates congestion created by zoning changes aimed at encouraging economic growth in the city’s downtown area. In leading the analysis, Otak also provided a variety of services including the full design and construction support that followed.
Converting an Arterial to Improve Capacity, Flooding, and Fish Passage
Zoning changes enacted within the downtown master planning area of Woodinville were expected to result in congested intersections at key entrances into the downtown core. Roundabouts at one existing intersection and plans for two others – at locations that would be constructed as the area became more densely developed – provided the basis for the identified best solution. The alignment for each intersecting roadway was determined while incorporating a roadway diet, from five lanes to two, between roundabouts to channelize the traffic safely and efficiently. These improvements came with several other benefits by substantially reducing paved areas, replacing two culverts to fish-passable standards, alleviating flooding, and adding stormwater quality improvements, and a multi-use trail.
After upstream development caused degradation within the stream corridor, the restoration of a tributary to Niver Creek (Tributary M) addressed an ongoing concern of system stability in order to protect public safety, nearby infrastructure, and local ecology. Leading the design, Otak collaborated closely with the City of Thornton, the Mile High Flood District (MHFD), and Stream Landscape Architecture + Planning in developing a design that would stabilize the area, reconnect the channel to it’s floodplain, and maintain connection to the retention area providing flood control for the community.
Stream Restoration to Preserve Resources and Public Safety
The restoration of Niver Creek Tributary M reestablishes the natural system as a healthy, high-functioning stream while also creating an opportunity to better utilize the area for the community in combination with enhancements to the Niver Creek Open Space. Reconnecting to its floodplain and realigning segments where necessary, the design allows the stream to spread out and slow down during high flows, reducing erosion and supporting a thriving riparian corridor. Meeting a key priority in preserving mature riparian trees perched along eroded banks, the design team quickly adapted an original restoration plan. That update would modify the floodplain grading while also balancing considerations such as backwater effects of a downstream earthen dam, permitting constraints, underlying geology, proposed bank heights, revegetation areas, and estimated construction costs. As part of this restoration process, a range of alternatives with geomorphic, hydraulic, and cost-benefit analysis produced an ultimate restoration project that realigned the channel around critical utility infrastructure, preserved mature vegetation, and reconnected the channel to its historical floodplain. These improvements represent an example of how flood mitigation can leverage its surrounding context to provide nature-based solutions also foster safe, recreational opportunities for the regional community.
In revitalizing the central business district of Carnation, Washington, the reconstruction of four blocks was designed to improve a variety of areas from stormwater and utilities to traffic signage and pedestrian wayfinding. As the prime consultant completing these extensive streetscape improvements, Otak led the design, community engagement, and development of a comprehensive construction sequencing plan to minimize disruption to existing downtown businesses.
A Revitalized Streetscape Emphasizing Pedestrian Connectivity and Low Impact Development
This federally funded project applies a community-character design theme that draws on the area’s history to deliver new streetscape amenities as well as a host of functional streetscape improvements. Unique metal cut-out panels used as banners on street light poles and incorporated into street furniture highlight this theme. The design for core blocks downtown focused on pedestrian connectivity and gathering spaces while underground stormwater quality treatment vaults placed beneath sidewalks function as root-storage, allowing for street trees to be placed within the dense business-district environment. Integrated adjacent to the planter areas are stormwater bioretention facilities creating natural balance with landscape plantings. Use of a depressed-curb intersection design at Bird Street opens the cross-street pedestrian corridor for future festivals and other street events.
The science of engineering is the backbone of the environment we construct around us, and many people perceive engineering in its most common ways. For example, both civil and structural applications are when engineers are most in the spotlight and is arguably the first thing people think about when considering what “engineering” means. These practice areas are often the most visible because they are physical and affect our daily lives as both participators in the built environment and also as members of society.
“I love being able to see a project come to life. It is quite a spectacular feeling to know I have helped bring someone’s idea into reality.”
Hailey Sibert – Otak Civil Designer
However, engineering can be much more varied than meets the eye, and the practice area is defined by the broader applications that a multidisciplinary approach can have on not only the built environment, but also on the communities that call that environment home.
In this post, we’ll explore the ways in which engineering affects multiple facets of society, and show just how important the intersectional practice is to fully functioning communities.
Getting People Around, In Multiple Ways
Transportation engineering immediately comes to mind when thinking about the lesser thought applications of the profession. Options for transportation in the built environment don’t just spring up out of nowhere, and the impact that high functioning transportation infrastructure on communities is hard to overstate.
Quality transportation engineering improves how community members get from place to place and serves as a great socioeconomic equalizer. By increasing access to jobs, opportunities, and services through breaking down transportation barriers, engineering directly uplifts disadvantaged groups within municipalities by ensuring everyone gets an equal shot at getting there.
Multi-modal transportation also plays a role here. Communities don’t solely consist of cars, trains, and busses. Designing pedestrian-friendly areas allow neighborhoods to flourish and encourages healthier, more walkable lifestyles among citizens. Greater still, access between point A to point B is improved for those who do opt for public transport, which decreases reliance on cars. This means everything from sustainability perspective, and it’s all made possible through quality engineering that’s designed to move people, not just vehicles.
Using The Natural Flow of Things
The environmental intersections of engineering with purpose are also huge components of quality design. When we envision communities, we design with natural surroundings and not despite them. By doing this, we place an emphasis on low impact development (LID) which gives way to developing green stormwater infrastructure.
The best part about being a civil engineer is building connections. We building infrastructures and improve transportation networks that connect people and communities.
Eva Ho – Otak Civil Engineer
Without a multidisciplinary approach to this type of engineering, the greener aspects of project work may go unnoticed, or natural systems in place may be harmed or interrupted. Instead, engineers can design around habitats by understanding water flow and hydraulics of the site. In this way , water and natural resources engineers play a critical role in making communities not only sustainable for humans, but also more habitable for other forms of wildlife that may exist alongside something out of the built environment.
Helping the Rain Go Away
Quality water resources engineering also helps us answer unique questions about planning and design, including ones in relation to stormwater and surface water management. One might ask themselves, “When the rain falls, where does it go?”
The answer? It’s been engineered to flow through the community in helpful ways. For one, understanding water detention and retention prevents flooding for neighborhoods already in place. Second, it ensures quality of water for communities and natural habitats impacted by the local watershed and stormwater runoff — engineering for the community of life, not just for people.
“My [engineering] work has given me the opportunity to wear many different (hard) hats. I’ve designed cable stay bridges, a variety of buildings, sculptures… every day is an adventure!”
Greg Mines – Otak Structures Engineer
This ultimately helps prevent more vulnerable communities and areas from experiencing the effects of increased or harmful precipitation by injecting climate resiliency into the existing system, something a traditionally structural engineer might not consider. When multifaceted engineers are tasked with a project, they come up with a multi-pronged way of looking at a project that does more than just house, shelter, or get people to work on time.
Finding the Perfect Place for a Project
Engineering helps us answer even more pertinent questions about the built environment and our relationship with it, even before construction begins. So, just what happens on a site before we start building on it? Choosing the right spot to begin work involves a lot more than one would think.
Scrupulous engineering considers all the possibilities in order to find the right place for a project based on a goals and initial design, giving way to the practice of site development. Coming up with creative, practical, buildable, and permittable solutions is the work of engineers as well, and good ones are context sensitive (to cultural and natural resources that exist around a site) before building starts. Design efficiency has everything to do with pre-construction, from choice of materials to making sure things go smoothly from both a budget and site complications perspective. Engineering opens doors to deeper understanding of a project, not just the calculus to get it done, to ensure timely project delivery.
Enjoying Outdoor Spaces
As much impact as good engineering can have, sometimes the work is about leaving that impact with a minimal footprint. This can not only benefit clients, but members of the community that the project might impact. So much of engineering is about enhancing our open spaces and natural landscapes with low-profile infrastructure that allows for greater access and enjoyment from the populace, which can be as simple as a well-placed jungle gym or as complex as designing administrative facilities for parks and natural attractions.
Bike paths, multi-use paths, all of these are often not thought of as a crucial bit of engineering, however they double down on active transportation of the area while continuing to encourage a healthy lifestyle.
Trails and trailheads play a similar role — allowing people to access and connect with nature while preserving the spaces in which they exist and generating interest in the natural environment while in an effort to preserve it.
The thing I like most about working at Otak is the awesome, interdisciplinary team that I get to work with.
Chris Romeyn – Otak Sr. Water Resources Engineeer
And again, even before construction or the start of a project, feasibility studies in these environments also fall into the wheelhouse of engineering, ensuring the safety, sustainability, and resiliency of the site so people can enjoy it, catching problems in advance that might hinder project completion.
Multiple Engineering Disciplines, One Team
The work of engineers at Otak is multi-faceted and interdisciplinary, and we’re proud that our work goes toward the betterment of the communities we serve. The voices, experience and expertise of the engineering teams within our ranks reflects what their work means to them. Take a closer look at the depth and breadth of project work from one of our most esteemed and recognizable practice areas.
To provide a more natural open discharge and eliminate a fish barrier from the outfall of Riverton Creek into the Duwamish River, associated flap gates and pipe culverts would need to be removed.
Improved Fish Passage and Pedestrian Bridge
Incorporated into the work was the design of a bridge to carry the Green River Trail over the new Riverton Creek channel. Improvements also include the removal of a portion of an existing concrete retaining wall and of retrofit an existing sheet pile wall that supports Pacific Highway South using soil anchors. Design of a new deep retaining wall supports a private parking lot. Included in stream enhancements was a focus on riparian plantings. In addition to executing the project, the Otak team led updates to previously provided reports and developing plan, specification and estimates (PS&E).
Ronald Bog is a significant, highly-visible resource of the City of Shoreline that now provides the community an Early Warning System for flooding. Created by the headwaters of Thornton Creek, releasing runoff through an urban watershed to Lake Washington, the subbasin includes localized depressions that fill with stormwater runoff during flood events. Otak worked with City staff and stakeholders on watershed planning and developed a public involvement program that included newsletters, public workshops, and a citizen advisory group.
Flood Mitigation Meets Capital Improvement Program Prioritization
The flood water elevations in these depressions have continued to increase as the subbasin is urbanized, flooding 10 to 20 homes during a moderate storm. The project included capital improvement program (CIP) identification and prioritization. The resulting basin study detailed drainage problem analysis, drainage complaint analysis, hydrologic and hydraulic modeling, basin planning, surveying and GPS, drainage inventory and GIS, and preparation of plans, specifications, and estimates. Throughout the course of this research was significant community outreach and public involvement support.
The Springwater Wetlands Restoration project reconnects and restores the Johnson Creek floodplain while managing flooding by expanding on existing, historic wetlands. Similar to the adjacent Foster Floodplain Natural Area that preceded this work, the project also restores the wetland as a wildlife habitat and space for public access. Otak led the predesign research and worked iteratively with the City of Portland Bureau of Environmental Services (BES) and other stakeholders to meet a variety of goals throughout the permitting and design processes.
Enhancing a Wetland for Improved Habitat and Flood Mitigation
In addition to managing flooding through green stormwater infrastructure, the city aimed for broader benefits in restoring the Springwater Wetland, including the removal of contaminated fill and non-native species while enhancing habitat for native species such as the Red Legged Frog. An unsteady-state hydraulic model was used to evaluate flood storage capacity and develop hydraulic connections that convey flood flows to and from the wetlands. The modeling and hydrologic analysis was used to develop the Johnson Creek Restoration Plan that accounts for 10-year storm, 25-year flood, and 100-year flood events. Data gathered during modeling also informed the design of public access amenities, including the creative reuse of historic stonework as seating, new plaza areas, and architectural features throughout the site. Expanding the area’s use further, a dual-use trail system (that uses porous pavement to further reduce stormwater runoff) creates a safe, accessible connection to the Springwater Corridor Trail.
The flood reduction at South 180th aimed to address longstanding flooding issues in the area caused by a ditch with inadequate capacity. A critical areas assessment developed solutions focused on the goal of reducing flooding through flow control and additional conveyance capacity.
A Critical Area Assessment to Solve Persistent Flooding
Flooding at 180th would happen several times a year. An evaluation of flood risk to adjacent properties as well as capacity for the ditch and downstream drainage system delivered alternatives using both conventional or natural drainage systems. These alternatives considered factors such as construction cost, right-of-way availability, property acquisition, erosion in downstream ditches, and permitting requirements. Otak played a critical role in this project, providing project management, topographic survey, hydraulic and hydrologic modeling, and stakeholder engagement. The evaluation has the South 180th Flood Reduction project well-positioned to succeed in its mission to reduce flooding and protect the surrounding properties and community.
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