HomeMy WebLinkAbout13_Appendix K_Planting Plan WATERCOURSE PLANTING PLAN
The Watercourse Planting Plan for Boulder Creek Subdivision (Sheet I of 1) shows the
location of 18 planting clusters, consisting of 33 trees and 79 shrubs, for a total of 112 plants.
Eleven of the clusters are dominated by wetland plants and seven of the clusters are dominated by
upland plants. The species, quantities, recommended plant sizes, and diameter at maturity of
individual woody plant materials are included on the table shown on Sheet I of I for the Boulder
Creek Subdivision. The woody plants will be irrigated and caged for protection from wildlife
browse. The tree density for Boulder Creek Subdivision was greater than the 27 trees required
for the length of the watercourse within the subdivision. The shrub density was reduced slightly
from 82 based on the presence of the existing woody overstory located between Sherwood Way
and Oak Street and north of Annie Street.
The native streambank and upland seed mixes shown on Sheet I of I for Westbrook and
Boulder Creek Subdivisions will be planted in areas disturbed during construction or existing
bare areas. The native streambank mix will be seeded in areas where the groundwater table rises
to within 12 inches of the ground surface during the growing season, which coincides with areas
delineated as wetlands. The native upland mix will be planted in the remaining disturbed areas.
Please contact my office at 586-6909 or via email at bvaughn@montana.com if you have
questions or require further information.
Sincerely,
Barbara Vaughn
Environmental Engineer, S
Cc: John Rosa, Four Corner Construction, LLC
Mike Balch, C&H Engineering and Surveying,Inc.
Enclosures: Westbrook Subdivision Watercourse Planting Plan(Sheet I of 1)
Boulder Creek Subdivision Watercourse Planting Plan(Sheet I of 1)
WOODY PLANT MATERIALS
E
n Nome Abbreviation Quantity Size Diameter at
ific Name) (Gal) Maturity (Ft)
spen Pt 15 15 15
tr ,.ides) AFT LEGENDttonwoodPb 18 15 20-30bolsamifera) PROPERTY LINE
th Witlow Sb 18 2-5 6-15 --- ---- ADJOINING PROPERTY LINE
bbiono/boothn)
Golden Currant R. 15 1 3-4 PROPOSED CURB
(Rib..
oureum) RETENTION POND CONTOURS
Red—Osier Dogwood Co 12 2-5 6-8 -
(Corpus alb.)
Common Ch?echerry Pv 8 2-5 8-10 EXISTING WETLAND MITIGATION AREA
(Prunus virginian.)
Western Serviceberry Ao 6 2-5 10-15 EXISTING WETLAND BOUNDARY
(Amelonchier alnifolia) �7`JI __
�7Y CREEK CENIERUNE
Wood's Rose Wr 9 1-2 3-4 Z
(Rosa woodsii) �
��������� EXISTING OYcRSTORY
SiNerleof BWfoloberry So 3 1-2 2-6
(Shepherdia argentea) �vr
American Silverberry Ec 2 1-2 3-12
(Eleagnus commutato) _
Western Snowberry So 6 1-2 3-5 (�
(Symphoricarpos occidentalis)
PL_.ANTINC CLUSTERS ` �l
1 I
1
t
I
r
STREAMBANK SEED MIX ----.___-
Common Name Pounds Acre Comments ---�
Scientific Name
Gross—like Species
T
Slender Wheatgrass 7.0 Establishes easily and quickly, 't
(Agropyron tr.chycoulum) Short—Lived. i
"Sodas Streambank Wheatgrass 7.0 Strongly rhizomatous.
(A rap ron ri arlum) Useful in erosion control.
Tufted Hairgross 3.0 Fost—Estoblishing bunchgrass on both
(Deschompsia cespitoso) subirrigated and wetland sites. W ��
Fowl Bluegrass 0.25 Common wet meadow herbaceous
(Poo palustfis) species. �(
Fowl Mannagross 0.25 Excellent rhizomatous species for i 1V
(Glycerin striate) streombanks and wetlands. W
Gross Species CQ
Slender Rush 0.06 Rhizomatous Species. ti
(Juncus tenuis)
TOTAL 17.56 PLS
NOTE: Based on a drill—seeding rate of approximately 17.56 pounds PLS (pure live seed)
per acre. The broadcast seeding rate is 35,12 pounds PLS per acre.
UPLAND SEED MIX
Common Name Pounds/Acre Comments "
Scientific Name
Gross Species
Slender Wheatgrass 4,0 Establishes easily and quickly. _
(Agropyron trachycoulum) Short—Lived. Seale!n Feet
Canada Wildrye 4.0 Toll bunchgrass. Establishes easily 80 0 8D
(Elymus conodensis) providing quick initial cover on well— 24 0 24
drained banks or transition areas. -----_-------
Scale In Meters
Cover Sheep Fescue 1.0 Very drought—tolerant.
(Festue. ovine) long—lived bunchgrass.
Rosanna Western Wheatgrass 4.0 Rhizomatous species.
(Agropyron smithii)
Reuben Canada Bluegrass 0.5 Useful in restoration of riparian sites.
(Poe compresso)
"Solar" Streombank Wheatgrass 5.0 Strongly rhizomatous.
( rop ran riparium) Useful in erosion control ---
TOTAL 18.50 PLS
NOTE: Based on a drill—seeding rote of approximately 18.50 pounds PLS (pure live seed)
per acre. Rates would double for hand broadcast seeding.
ING DATE: 4 4 14
Engineerting and Surveying I--
flare(o�15911115•fv:(a66158)a168
.r..w.aa,yy,-• #12662