HomeMy WebLinkAbout38 - Geologic Risk Ltr - signed.pdf
SERVICE | EXCELLENCE | EQUITY
7812 S 124th St., Seattle, Washington 98178-4830 | p.425.204.4403 | f.425.204.4476
CAPITAL PLANNING
AND CONSTRUCTION
September 16, 2025
Alex Morganroth, AICP
Principal Planner
City of Renton//Planning Division
1055 S Grady Way
Renton, WA 98057
RE: Renton High School Replacement and Site Expansion Project
Letter of Understanding of Geologic Risk
Dear Alex and City Staff:
This letter is being provided as required by the PUD Submittal Checklist, item #38 “Letter of
Understanding of Geologic Risk”.
The Renton High School Replacement and Site Expansion Project site is located within an area
mapped by the city as a High Seismic Hazard Area. Renton School District has hired Associated
Earth Sciences, Inc. as the project geotechnical consultant. They have confirmed that the site is
susceptible to ground motion, liquefaction, lateral spreading and/or surficial ground rupture
associated with a seismic event. They have documented the risks and provided
recommendations for design to minimize the risks in their Geotechnical Report (September
2025). Their recommendations will require ground improvements in the form of aggregate piers
among other special methods.
Renton School District will be constructing the project in accordance with the geotechnical
engineer’s design recommendations. Therefore, we accept the risk of developing in the unstable
areas.
Sincerely,
Matt Feldmeyer, Architect
Executive Director-Capital Planning and Construction
Cc: Brianne Tomlin, Renton School District
Lisa Klein, AHBL