HomeMy WebLinkAboutBig Canyon Phase 2A WQ-T Committee 093020WATER QUALITY/TIDELANDS COMMITTEE
BIG CANYON NATURE PARK
IMPROVEMENT PROJECT -
PHASE 2A
OCTOBER 1, 2020
Phase 2A:
Brazilian Pepper
tree monoculture
with fringes of
infected willow
Pepper Tree Dominance
Finding an acceptable restoration concept
Selective Removal Areas
All willows
impacted by
Polyphagous
Shothole Borer
(PSHB)
Willow impacted by PSHB
Pepper Tree Clearing
Stump Grinding
Willow Stockpile
Front loader with grapple bucket
Mulching
Clearing nearly complete on south side
Widening the Flood Plain
Open Water Attraction
High Groundwater
Revised Hydroseed Areas
Schedule Milestones
•Hydroseed South Side: November 10
•Hydroseed North Side: December 20
•Restoration Dedication: ~Spring 2021
Future Improvements: Phases 2B and 2C
1.Fresh water lake
sediments impacted by
selenium.
2.Fresh water lake is a
mosquito breeding
area.
3.Invasive trees and
plants.
4.Plants and animals will
migrate into canyon
with rising sea levels.
Phase 2B/2C Concept Restoration
Big Canyon Phase 2A Restoration Update