March Meeting Reminder

DATE:    Wednesday, March 22nd, 2017
PLACE:  Hawthorne Lucky Lab Brew Pub, 915 SE Hawthorne Blvd, Portland
TIME:     11:30 a.m. Networking, 12:00 – 1:00 p.m. Presentation
SPEAKER:  Joseph Richards, Senior Civil and Water Resources Engineer, ESA

TOPIC:  Luther Road Habitat Restoration Project, Johnson Creek Watershed


The Luther Road Habitat Restoration project was completed in 2014 by the City of Portland Bureau of Environmental Services with partnership from Metro and North Clackamas Parks and Recreation District.  The project was identified as a priority in the 2001 Johnson Creek Restoration Plan because of exposure of the Lents Sewer Interceptor Crossing of Johnson Creek, untreated industrial stormwater discharges, disconnected floodplains, eroding streambanks and poor instream habitat conditions.   Successful purchase of a 10 acre parcel in 2008 made the project possible but significant effort remained to encumber industrial properties along the creek and design and permit the project.

The project includes: 2,200 feet of reconstructed channel with connected floodplains, trails that connect to the Springwater Corridor, water quality facilities and a 4-acre community park site ready for planning and design by North Clackamas Parks and Recreation District (NCPRD).  Permitting for the project included an individual permit from the Army Corps of Engineers that supports adaptive management over a 10 year period.  The project was designed to restore natural processes where feasible and to protect infrastructure and private property where necessary.  The record storms of December 2015 tested and changed the project and served as a reminder of the transient nature of river systems.


Joe is a senior civil and water resources engineer with over 24 years of US based and international water resources engineering, project management, and civil design experience.  He possesses in depth knowledge of the effects of urbanization on natural systems and has expertise in solving natural resource and infrastructure conflict issues. He often serves as a bridge between project members with different backgrounds and is adept at presenting technical information to lay audiences. Joe is a proven project leader with a commitment to seeking balanced solutions to natural resource issues where the built and natural environments intersect.  Before joining ESA he worked for eight years at the City of Portland Bureau of Environmental Services (BES) as a contractor through his company Richards Engineering.  During his tenure at BES he managed company operations and assisted in the delivery of more than 30 projects.

February Meeting Announcement

DATE:    Wednesday, February 22nd 2017
PLACE:  Hawthorne Lucky Lab Brew Pub, 915 SE Hawthorne Blvd
TIME:     11:30 a.m. Networking, 12:00 – 1:00 p.m. Presentation
TOPIC: Surface Water Diversions and Fish Protection
SPEAKER: Shane Sheldon, Viento Engineering


Farmers, ranchers, hydropower producers, municipalities, fish hatcheries all commonly use surface water for their core operation. To get this water, users must build and maintain an intake and water delivery system that can transport water from a river or lake. Since these intake and conveyance systems can be located in difficult to reach or flood prone terrain miles from the point of use, operators and agencies have spent decades trying out different technologies that keeps fish, sticks, leaves, and other debris from entering the canals, clogging the system, and preventing the flow of water. While maintaining these systems is costly for water users, it has proven to be an equally large problem for fish.

Fish screens are devices placed at points of diversions to prevent the fish, organic debris, and sediment that are naturally carried along in a river system from entering the diversion. State and federal law now require fish protection screens at most diversions however Oregon, Washington, Idaho, Montana, and California each have tens of thousands of unscreened or noncompliant diversions.

The presentation will cover:

  • – A brief background on fish screening in the West
  • – When and why do we need fish screens?
  • – Overview of the rules and regulations for fish screens
  • – The basic types of fish screens and examples where they may be appropriate
  • – Some general design considerations for a successful intake and screening project

Shane Sheldon is a water resource engineer and founder of Viento Engineering in Hood River, Oregon. He has been a part of several screening design projects across the Western United States as well as working with operators on the long term maintenance and upkeep of intake and screening systems.

November Meeting Announcement

DATE:    Wednesday, November 30th
PLACE:  Hawthorne Lucky Lab Brew Pub, 915 SE Hawthorne Blvd
TIME:     11:30 a.m: Networking, 12:00 – 1:00 p.m: Presentation
SPEAKER:  Ken Vigil, Mauria Pappagallo and Nate Robinson, ESA
TOPIC: Water Resources Engineering for Portland’s Tilikum Crossing


Tilikum Crossing, Portland’s first new bridge over the Willamette River since 1973, is part of TriMet’s 7.3-mile Portland-Milwaukie Lightrail transit project that connects downtown Portland with the City of Milwaukie.  This 1,720-foot long cable-stayed transit bridgetilikum includes two pylon-supported pier towers within the active channel of the Willamette River.

This presentation will focus on the unique water resources engineering aspects of this large transit bridge project.  Design challenges included providing fish passage around bridge piers for endangered salmonids, understanding and managing hydraulic scour and channel bed erosion, and providing stormwater management for runoff from the bridge deck.

Tilikum Crossing (Bridge of the People) is the largest car-free bridge in the United States. As the latest addition to Portland’s bridge-scape, Tilikum Crossing carries the Portland Streetcar, the MAX Orange Line, TriMet buses, and cyclists and pedestrians over the Willamette River.


Ken Vigil, PE, is a senior civil and environmental engineer and one of the founders of Vigil-Agrimis.  He has worked on water resources projects in the Pacific Northwest and the Great Lakes region for almost 35 years, including projects for fish passage, bridge hydraulics, stream restoration, water quality, and stormwater management.
Mauria Pappagallo, PE, is a water resources engineer with over a decade of professional experience in fluvial geomorphology, bridge hydraulics, hydraulic modeling, scour countermeasure design, and riparian and floodplain restoration design.   She has reviewed scour issues and designed scour countermeasures at bridge and culvert sites throughout Oregon and Washington.

Nate Robinson, PE, is a Civil and Water Resources Engineer with 7 years of experience in stormwater design, hydraulic and hydrologic analysis, utility design, and site design. He has worked extensively on innovative stormwater projects within the City of Portland and throughout Oregon.