Parks & Trails
HWA has experience providing geotechnical services on numerous parks and recreation projects, investigating and analyzing to support foundation designs, slope stability and earth retention, ground improvements, and environmental concerns to support the unique needs of each project.

HWA was the lead geotechnical engineer for Lynnwood’s Scriber Lake Park Boardwalk Project, replacing a soft-surface trail with an 8-foot-wide, pile-supported boardwalk and a 60-foot prefabricated bridge. HWA conducted field investigations, including borings and test pin-piles, addressing up to 55 feet of soft peat. HWA provided geotechnical recommendations, coordinated with the design team, and performed construction inspection services to ensure structural and environmental compliance.

A six-foot-wide boardwalk that creates an accessible path from the upper to lower garden. Field explorations and laboratory testing were conducted and geotechnical recommendations for foundation support of the proposed boardwalk were provided. In addition, critical areas studies related to seismic, erosion, and landslide hazard areas were conducted, and this project was awarded the Washington Recreation & Parks Association (WRPA) Spotlight Award for Outdoor Spaces (population under 100,000).

HWA is supporting King County Parks’ Lakeland North Park Phase 2 project under the On-Call Engineering Services Contract. The conceptual design includes a restroom with septic system, shade canopies, play areas, trails, and parking pavements, with possible short retaining walls. Scope includes a desktop review, field explorations, lab testing, and engineering analyses to develop preliminary geotechnical recommendations for design and construction of the proposed improvements.

HWA was the lead geotechnical engineer for Lynnwood’s Scriber Lake Park Boardwalk Project, replacing a soft-surface trail with an 8-foot-wide, pile-supported boardwalk and a 60-foot prefabricated bridge. HWA conducted field investigations, including borings and test pin-piles, addressing up to 55 feet of soft peat. HWA provided geotechnical recommendations, coordinated with the design team, and performed construction inspection services to ensure structural and environmental compliance.
