HomeMy WebLinkAboutLake Limerick Island Erosion Plan - PLN General - 5/14/2025'REV: 6/28/25 VERBAGE AND CONTOUR LINES(PARADISE/ALLEN)
as
z
0
r
W
RANGE 3W
TOWNSHIP 21N
SECTION 27 PARCEL 321275100289
34 SLOPE WITH PLANTINGS TYP.
SLT FENCE 360' BMP C233
REMOVE EXISTING SAND BAGS
SOIL W/JUTE NET
NATNE PLANTINGS
THE CLUBHOUSE ISLAND PARK AT THE INN
EXISTING BORDER OF NATNE
NATNE BULRUSH AND SEDGE
REMAIN UNDISTURBED AS MUCH
POSSBLE
H
0 20
1"
40
20'
LANDSCAPE PLANT MATERIAL LEGEND D (PARK, LAKE, AND OPEN SPACE)
SIZE
BOTANICAL / COIEMON NAMES CONDITION SPACING QUANTITY REIIAW(S
60
TEES
n E,
ACER CIRCINATUM /
VINE MAPLE
1.75' CAL
(2)
!: _
EXISTING TREES TO REMAIN
As SHOWN
(3)
EXISTING TREES TO REMAIN
0
-
''�
A PLICATA 'EXCELSA' /
ESTERN RED CEDAR
6' - 7'HT.
AS SHOWN
(3)
STAKE & GUY ONE GROWING SE
NURSERY GROWN, UN CUT LEAF
��J,L
") i
��/!1' -*.
,. �I�11i` .
EUDOTSUGA MENZIESII /
OR DOUGLAS FIR
PICEA SFTCHENSIS / SITKA SPRUCE
6' - 7'HT.
As SHOWN
(3)
STAKE & GUY ONE GROWING SE
-
NURSERY GROWN, UNCUT LEAF
a.-
A......___
SHRUB&
MAHONIA AQUIFOLIUM /
18' - 21'
5' O.C.
(52)
OREGON GRAPE
CORNUS STOLONIFERA 'KELSEYI' /
2 GALLON
8' O.C.
(34)
DWARF RED -TWIG DOGWOOD
ill
RED FLOWERING NEUMRANT /
RIBES SANGUICUR
2 GALLON
8' O.C.
(24)
��.
4
OCEAN SPRAY PLANT . /
HOLODISCUS DISCOLOR
2 GALLON-8'
O.C. -
(3)
SALAL/GALTHERIA SHALLON
0
OREGON GRAPE/ MAHONIA COMP
GAL
3' O.C.
(56)
GROUNDCOVERS
I �� �� I
ARCTOSTAPHYLOS UVA-URSI /
KINNIKINNICK
1 GAL
18" O.C.
AS Ron
HOLD 16' FROM BORDERS, SHI
AND TREES
EXISTING SEDGE AND BULRUSH
SAVE AS MUCH AS CONSTRL
w v.l
I
WILL ALLOW
ER
ASON
ER
UBS,
CTION
SYNTHETIC FILTER
FABRIC, E.O.S.=100
TO 50, SECURED
TO POSTS
MIN. 4" DEEP
TRENCH FOR FABRIC
EMBEDMENT
POST AT 6'-0" 0.C. TO BE
2" X 2" WOOD
SILT FENCE
—EXISTING GROUND
12"-
3'MIN
Ole __
NM10POW
2'MIN
14-1 0 MAX--1,1
5" MIN DIA. ROUGH
CUT WOOD
RAIL -UNTREATED TYP.
CRMCAL AREA SIGN.
1 SIGN PER EVERY
100 FEET.
6" MIN DIA. SQUARE OR
ROUND ROUGH CUT
- U NTREATED
TIP.
% MINUS ROCK
BACKFILL, COMPACT
TINE SOIL
153.5'
CIE
1=111=111=11
LEGBD
1. SHRUB CIR W PEFI PLAN
2. EARTH WATERING BARN (RAKE 9(OOTH
PROR TO SEEM° N HYDROEEED
AREAS AT E31:1 OF PLANT
EE3TAB IBLIENT P670D FOR ALL
REMANSIG BASNS)
3. FRIBH GRADE
4. 7 GRAM PLANT TABLETS
1GAL -3,5GAL -6
15GAL -9,24GAL -12
5. ROOTBALL (BET CROWN +1- 3" ABOVE
IanCmom
6. COMPACT® BACKFLL MD( (PER
PL.AERNO EFW= N TEW
7. UNDISTURBED NATNE SOL
8. CUT NFO 131.13PE TO CFEJITE LEVET MEIN
SHRUB PLANTING — SLOPE
SECTION A
-IIIIIIIIIIIIIIIIIIIIIIII—III
SECTION B
CALL 48 HRS
BEFORE YOU
811
PROJECT REF:
THESE PLANS ARE APPROVED FOR CONFORMANCE
WITH THE MASON COUNTY PLANNING DEPARTMENT
REQUIREMENTS.
APPROVED BY:
DATE APPROVED -
CONTRACTOR NOTE
CONTRACTOR IS RESP❑NSIBLE FOR LAYING OUT 4'
WIDE PATHWAY AT MIN 12:1 WALKWAY GRADE WITH
MIN 3:1 SIDE SLOPE PLANTING ON ALL SLOPE ABOVE
PATHWAY AREAS.
152'
151'
150'
149'
148.5'
153.5'
PATH GRADE 12:1
152'
151'
150'
149'
H.W.M
LAKE (4)
LOW WATER LEVEL
VICINITY MAP
PROJECT PURPOSE
THE CURRENT C❑NDITI❑N OF THE SH❑RELINE IS IN A CONSTANT STATE OF ER❑SI❑N. THE PROJECT
PURPOSED IS TO RESTORE AND STABILIZE THE SH❑RELINE ABOVE THE HIGH WATER MARK WITHIN THE
SWIMMING AREA SH❑RELINE BY:
1. CREATING TWO (2) 12:1 GRADE PATHWAYS TO ELIMINATE FOOT TRAFFIC DIRECTLY OVER THE
EMBANKMENT
2. GRADE THE STEEP SLOPE WHERE INFLUENCED BY THE 12:1 WALKWAY CUT TO A APPR❑XIMATE 3:1
GRADE, STABILIZE WITH PLANTINGS AND PROTECT BY FENCING TO DIRECT TRAFFIC AWAY FROM BANK
TO THE DESIGNATED PATHWAYS.
3. ADDING FENCING, SIGNAGE, AND PLANTINGS WITH ADDITIONAL TEMPORARY BEST MANAGEMENT
PRACTICES (BMPS) TO ACHIEVE THIS PROJECT PURPOSE.
C❑NSTRUCTI❑N SEQUENCE
1. HAVE MEETING BETWEEN CONTRACTOR AND PROJECT MANAGER ❑NSITE PRI❑R TO C❑NSTRUCTI❑N.
2. FURNISH AND INSTALL SILT FENCING ALONG HIGH WATER MARK AT AREAS OF ❑PERATI❑N
3. CONSTRUCT PR❑TECTIVE TEMPORARY C❑NSTRUCTI❑N ACCESS AS NEEDED.
4. THE WORK AREA SHALL BE GRADED, SHAPED AND ❑THERWISE DRAINED IN SUCH A MANNER AS TO
MINIMIZE S❑IL ER❑SI❑N, SILTATI❑N OF DRAINAGE CHANNELS AND DAMAGE TO EXISTING PROPERTY
OUTSIDE THE LIMITS OF THE WORK AREA. SILT FENCES, STRAW WATTLES
AND/OR OTHER BMPS WILL BE NECESSARY TO ACC❑MPLISH THIS END.
5. BEGIN SITE GRADING OF PATHS, FILLING SLOPES ALONG THE ISLAND SHORE LINE. INSTALLATI❑N
OF JUTE NETTING, PLANTINGS AND ER❑SI❑N CONTROL MEASURES SHALL BE CONSTRUCTED PER THESE
PLANS AND DETAILS.
6. MULCH OR COVER IMMEDIATELY AFTER BEING CONSTRUCTED. THE AREA BEING PROPOSED FOR PATH
AND MITIGATI❑N MUST BE COMPLETED AND SECURED TO ENSURE NO ER❑SI❑N OR SEDIMENT SHALL FAIL
IN WINTER C❑NDITI❑NS.
7. INSTALL ALL PLANTINGS, MULCH, FENCING AND SIGNS.
8. ALL QUESTIONS, INQUIRES OR CHANGES MUST BE C❑❑RDINATED WITH PROJECT MANAGER
CRITICAL AREA SIGN
SPLIT RAIL FENCE SEE DETAIL
I I �I
Ieillll II1 II
1EI EIIEI 11_11 II I II
11LF E11
I III I I=1
III -III I I -I I I -I 11=.
N 11 11 k 11-111-111-111 =
I E I M I N I EI 1 I-1 I -I 11=11 I-1. .
1 E111 1 E11 I I E11 1 E 1 E11 E11 11
-111 1 I N 1111 E111-11 E11 E11 N i ! 11 E111 1 I EH I1 I EI 11-111 11 E1111.
MIHIE1II- IE1Ir1EIIEIIEII 1II IEmIIE IEIEIII=11 _ 111 I I I I N I I-11 EI 11-I I IJ 1 EI I H I EI 11 III III -I I EI I I=1 I I-111=111=1 I E..
I I I 1 I I N 1
I--11 �I I I I �I I C I I �I I IJ I. I �I I IJ 1 1 111=1 I I-1 11=1 I I=11 �I 11=1 I IJ I I �I I I-J.
STRAW WATTLE W/W❑❑D STAKE BMP C235
FILL SALVAGED FROM PATH CUT
STAPLED JUTE NET BMP C122
TRAW WATTLE W/W❑❑D STAKE BMP C235
SILT FENCE BMP C233
J
W
4
DRAWN BY:
DANIEL G. RICHTER
DESIGNEDIAPPROVED:
RICHARD ALLEN
LLCC LK. DAM COMMITEE
DATE:
5114/2025
JOB:
LLCC
PLAN
LLIEP
SHEET NO.
CRITICAL AREA FENCE DETAIL
CONCEPTUAL CROSS SECTION OF SWITCHBACK LAKE ACCESS N. T. S
CONCEPTUAL CROSS SECTION OF CUT/FILL MITIGATION N. T. S
1