Owner Seeks Engineered Plan After Geotech Study: 101 Pine Street Slope Stabilization Update
Property owner Garrett Prettyman reported a new geotechnical review that called the site 'erosion issues rather than landslide risk' and recommended immediate spring stabilization (pinned burlap mesh, native plantings) and longer-term engineered buttress/backfill options; the commission required documented engineered plans and said vegetation-only work must be cleared against an existing stop-work order.
The full story
Garrett Prettyman told the Wallace Historic Preservation Commission on April 1 that he retained Inland Empire Geotech and that a geotechnical engineer who visited the site characterized conditions as "erosion issues rather than landslide risk." The engineer recommended immediate, low-disturbance spring stabilization measures — pinned burlap mesh, reseeding, and deep-root native vegetation (examples discussed included lilac, Oregon grape, and clover) — and identified the River Street slope as the steepest, potentially requiring a long-term engineered buttress wall and backfill at the base to reduce slope angle.
Sign up to keep reading.
Your free newsletter brings you what your city council, county, and school board discussed and decided.
Keep reading for free
Create a free account to finish this story and see the video, transcript and key details.
Continue with GoogleContinue with emailAlready have an account? Log in