Fish & Wildlife 3 (Napa)
(California Department of Fish and Wildlife, Region 3)
Grant Street Drainage Improvements Project
NOE - Notice of Exemption
Phase One is limited to: 1) Removing and replacing a failed 36-inch, 35-foot long concrete box culvert with a new 60-inch, 34-foot long concrete box culvert under Grant Street between Michael and Redwood Avenue; 2) Excavating and replacing an approximately 7-foot high and 5-foot wide concrete headwall; 3) Installing approximately 5-feet by 5-feet of rock slope protection as energy dissipation at the culvert outlet; 4) Widening and regrading approximately 380 linear feet of open channel to drain peak storm water volumes within the Mt. St. Helena Golf Course. Phase two is limited to replacing an apparixmately 800-foot long existing 36-diameter concrete cuvlert with a 60-inch diameter corrugated plastic pipe (CPP).