Vegetation Management and Maintenance Plan - Watsonville ...

CHAPTER 4.0
RIPARIAN AND WETLAND MITIGATION/RESTORATION AREA MAINTENANCE
4.1 RIPARIAN AND WETLAND MITIGATION AND RESTORATION SITES
Currently there are four riparian and wetland mitigation/restoration sites within the VMMM
project area. These sites were selected to provide mitigation for City of Watsonville projects,
pursuant to the project environmental review and regulatory agency permits.
The mitigation/restoration sites are:
1) Upper Struve Slough, north of Main Street; site provides wetland and riparian
mitigation for the Watsonville Wetlands Trail Project. Plantings installed in fall 2003
(Table 8).
2) Upper Watsonville Slough, upstream and downstream of Harkins Slough Road
(Ramsey Park area); site provides wetland and riparian mitigation for the Harkins
Slough Road Bridge at Watsonville Slough Project. Plantings installed in fall/winter
2005 and fall/winter 2006 (Table 9).
3) Middle Watsonville Slough, downstream of Kearney Road (Manabe site, Phase 1A);
site provides wetland and riparian mitigation for the Manabe wetland enhancement
project. Plantings installed in fall/winter 2006 (Table 10).
4) Lower Struve Slough, downstream of Main Street; site provides wetland mitigation
for the Harkins Slough Road Bridge at Struve Slough Project. Plantings installed in
fall/winter 2006 (Table 11).
Tables 8, 9, 10, and 11 identify the plantings that were installed at each of these sites. The
planting plans for these areas are presented in Appendix D.
Table 8. Upper Struve Slough Mitigation Plantings
Common Name Scientific Name Number
Size
Installed
(2003)
Western Sycamore Platanus racemosa 8 Tree pot
California Buckeye Aesculus californica 14 Tree pot
Box Elder Acer negundo 14 Dee pot
Big Leaf Maple Acer macrophyllum 24 Tree pot
Willow Salix sp. 450 Dormant Pole Cutting
Coast Live Oak Quercus agrifolia 7 Tree pot
Toyon Heteromeles arbutifolia 29 Dee pot
Sticky Monkey Flower Mimulus aurantiacus 5 1 gallon
California Rose Rosa californica 33 Dee pot
Snowberry Symphoricarpos rivularis 16 Dee pot
Mugwort Artemisia douglasiana 22 Dee pot
Coyote Brush Baccharis pilularis 12 Dee pot
California Wax Myrtle Myrica californica 30 Dee pot
Hairy Honeysuckle Lonicera hispidula 25 Dee pot
Wild Lilac Ceanothus thrysiflorus 21 Dee pot
Coffee Berry Rhamnus californica 6 Dee pot
Spreading Rush Juncus patens 200 2-inch pot
Cattail Typha latifolia 224 Salvage transplants
Bulrush Scirpus sp. 224 Salvage transplants
Vegetation Management and Maintenance Manual
Draft 39 July 27, 2007