Small-Flowered
Trillium
Western Wahoo
Herrera’s own Josh Wozniak, natural resource scientist, made an exciting discovery while performing rare plant surveys for WSDOT. In his own words,
“I was fortunate last week to receive an honor that I thought I would never achieve, to find undocumented locations of rare plants. Only a handful of new records for the state come in each year, and rarely in proximity to developed areas, despite ongoing surveys.
During rare plant surveys for WSDOT’s SW region last week, I found populations of two rare plants, Small-Flowered Trillium and Western Wahoo. I happened to be in the right place, at the right time!”
The plants, which were found in Clark County, will be added to a statewide database which is used to advise the design of future projects, as a research tool, and is part of a monitoring program which tracks the changes in these rare plant populations over time.
Tall Bugbane
An update: On June 21st, Josh added Tall Bugbane to his list of finds!
Can rain gardens solve the problem of overwhelmed combined stormwater/sewer systems in Seattle’s Lakewood neighborhood? Read what Herrera water resource engineers, Robin Kirschbaum and Alice Lancaster, found out in the June edition of American Water Resources Association Newsletter.

Rebecca Dugopolski, an environmental engineer with Herrera, penned this article for Waterline, The Washington State Lake Protection Association newsletter. Click the thumbnails to read the full story on the potential effects of limiting phosphorus fertilizer in Washington.

Jan Aarts
Jan Aarts
Herrera Environmental Consultants welcomes Jan Aarts to our natural resources planning group as a senior environmental planner. Mr. Aarts has more than 20 years of experience leading NEPA/SEPA and permitting work for transportation and other public infrastructure projects. Most recently, Mr. Aarts was with Parsons Brinckeroff. Mr. Aarts’ current projects include the Seattle Department of Transportation South Lander Street Grade Separation and King County Regional Trail System Bridge and Trestle Engineering projects.
Tyson Wright
Tyson Wright
Herrera Environmental Consultants is pleased to announce the addition of Tyson Wright, PE, who joins our firm as a civil engineer. Prior to joining Herrera, Mr. Wright worked for CRW Engineering Group in Anchorage, AK. He specializes in infrastructure design for water, sewer, and storm drain systems; roadways; and site design. Currently, Mr. Wright’s projects include the King County Cedar Hills Regional Landfill Area 6 Closure, the Hoh River Boundary Pond Enhancement project for the US Forest Service and two low-impact development projects for private developers.