|
TRANSPLANTED WILL ROOT MASS OPTION .... Wtn'-Nn.....rlatitic,statcv
<br /> WETLAND SURFACE SHALL BE ENTIRE ROOT MASS AND SURROUNDING SOILS
<br /> ESTABLISHED AT AVERAGE SALVAGED FROM AUTHROIZED ONSITE WETLAND rselfalWet sn E.es11 M.F_,s. . nsrl•c-:r at,.,nH„,r,lsi,e
<br /> GROWING SEASON GROUNDWATER IMPACT AREAS. TRIM ABOVE GROUND PARTS urn un"'n`
<br /> I I s.„. i.yuar.t
<br /> ELEVATION
<br /> TO 2' AND ENSURE GOOD COMPACTION fetirannusy_ionne OM y. 091 15 to
<br /> SURROUNDING. CONTOUR SURROUNDING Cffiamaafoste:umrdrn&is blue joi^ted•erdy.uss 0RL IS ,00.5
<br /> PROVIDE OUTFALL SWALE OR LANDSCAPE TO DRAIN 'Cur,nebr°censis Aebraskasedge OB: IS 2.5
<br /> DRAINAGE PATH TO PREVENT LOCAL SURFACE RUNOFF
<br /> es•-erhn.rpvo•e/Firoso 1,'.'!rd F..-grass 4AC174 25 1,5
<br /> WATER PONDING GREATER ^ SEED ENTIRE WETLAND TOWRADS WETLANDS F'hisun,di rn.m 1 alpnet!m[[hy (A[ 30 2.5
<br /> THAN 1' (WHERE FEASIBLE) SURFACE WITH WETLAND naernairyts
<br /> TOTAL. �p.f eetrkF$0
<br /> [SEEDMIX i Cares aquavhy 'date,sedge OB_
<br /> Cores animists, braerd sr..^.g^ •.^,A
<br /> Carer mkroptem an-sal•w fnged sedge FAC
<br /> \ '\
<br /> III I ' Wvicerh svitfto !owl n a'l 5IJ: 0BL +
<br /> - -- \ — 1
<br /> AVERAGE GROWING SEASON
<br /> *MOS aictisaa Arcr •ah IFACW
<br /> � GROUNDWATER ELEVATION. ENSURE
<br /> MAXIMUM FLUCTUATION DOES NOT •j.L,catNarnEsxBu9SsorTsal[y'AGE rasLANTADnarrac
<br /> \ 7I / ' ' EXCEED 0.5' DURING SUMMER �etufapa+dr.lDwarrbR�no--
<br /> So63�D °r Booth's rylllo,r FACW
<br /> \ —_
<br /> Safu d -nd;u yea rD'ro..mrwndl morose— ---- WV/
<br /> Sai1X yryertins Gaye,willow fACW
<br /> .
<br /> Selig ontitota Park Mims 001
<br /> m
<br /> EXCAVATE EXISTING COBBLE WILLOW STAKING OPTION DORMANT PRE—TREATED Frans:
<br /> SUBSTRATE 1' BELOW — WILLOW STAKES HARVESTED FROM DESIGNATED &paired PIS iPure Iiin Seta)based an 2.0 erre seeding area and 260 see&per Rowe loot 6roudh,t.
<br /> AVERAGE SUMMER Final species ocmFn..irian and rates shaft Dr odjuftrd pr,final dr sign and condition end subdi•:f ro n:ai6,i rits. Q
<br /> ”
<br /> GROUNDWATER ELEVATION ONSITE SOURCES AVG 3' LENGTH AND 0.5MIN. All shrubs totwined verified and GO.'selectedfr)maapraved laturons.
<br /> DIA. INSTALL INTO GROWTH MEDIUM AND r"
<br /> oci
<br /> GROWTH MEDIUM 1' MIN GROUNDWATER TABLE 1' MIN DEPTH. TRIM ABOVE 'W«brd indicator Storm WllakiowcN
<br /> DEPTH SALVAGEDCode Wetland Type Comment
<br /> GROUND PARTS TO 2' AND ENSURE GOOD oat Oki iga1eWstlend Occurs elmatalways lnli!.ale:prcLebilky5111).,rdrirevel a,
<br /> WETLAND TOPSOIL OR — COMPACTION SURROUNDING. :larnin wetlands o
<br /> PRODUCED MINERAL FACVI Fa,:ie:.,. usual y=I,•rirw.tl.r,d.Ivwirr,;rdEro,ari'1y67%-.>%juut o
<br /> SOILS WITH AMENDMENTS Wal and axasore'ly loured in nanwecards.
<br /> FAC Fas JItansie Fusel ypkely: ncvIn waderrv
<br /> ls cs•• swet'rats 1.1f-.tedFuselo
<br /> 1/11ablty 31%-56%l.
<br /> j
<br /> Source:{Peed 35E8}.Nation'_he alit ant Species the!O.:rur'n wetferds:trderr,irWn}Regr+n 51. cs
<br /> NOTES:
<br /> I-
<br /> I—
<br /> o
<br /> 1. THIS CONCEPT PLAN HAS BEEN DEVELOPED AS A SCHEMATIC MODEL FOR WETLAND CREATION. THIS CONCEPT PLAN PROVIDES ONLY KEY ELEMENTS AND PRINCIPLES FOR WETLAND CREATION AND IS NOT INTENDED TO BE SUFFICIENT FOR z
<br /> DIRECT CONSTRUCTION IMPLEMENTATION. MORE DETAILED ANALYSIS AND DESIGN, INCLUDING WATER BUDGET ANALYSIS, AVAILABLE GROWTH MEDIUM OPTIONS, AND VEGETATION ESTABLISHMENT IS REQUIRED TO ENSURE SUCCESSFUL as
<br /> WETLAND CREATION. 1-
<br /> 0
<br /> 2. WETLAND CREATION APPROPRIATE FOR THE SWAN RIVER PROJECT SITE CONSISTS OF A COMBINATION OF SEMI—PERMANENTLY SATURATED PALUSTRINE SCRUB—SHRUB (PSS) AND SEMI—PERMANENTLY INUNDATED/SATURATED PALUSTRINE z
<br /> EMERGENT (PEM) WETLAND HABITAT TYPES. THESE WETLAND TYPES HAVE BEEN DETERMINED TO BE THE APPROPRIATE REFERENCE CONDITION AND MOST ECOLOGICALLY VALUABLE WITHIN THE WATERSHED. REFERENCE CONDITION W
<br /> VEGETATION COMMUNITY WOULD CONSIST OF AN APPROXIMATE COVERAGE OF 40% PSS AND 60% PEM IN A MOSAIC PATTERN. 3
<br /> 0
<br /> 3. SEMI—PERMANENTLY SATURATED/INUNDATED PSS/PEM WETLAND HABITATS WOULD MAINTAIN A HYDROLOGICAL REGIMEN VARYING FROM SATURATED SOIL (WITHIN THE UPPER 12 INCHES) TO SHALLOW INUNDATION (3 INCHES MAXIMUM vi
<br /> DEPTH) FOR A MAJORITY OF THE GROWING SEASON. o
<br /> 4. THE INTENT OF THE CONCEPT PLAN IS TO INTERCEPT LOCAL GROUNDWATER AND CREATE A STATIC GROUNDWATER SUPPLY SOURCE FOR THE WETLAND. THE WETLAND WOULD BE CONTOURED TO INTERCEPT SHALLOW GROUNDWATER TABLE a
<br /> AND MATCH THE EXISTING TOPOGRAPHY. THE WETLAND AREA SHOULD BE OVER EXCAVATED BY A MINIMUM OF 1' BELOW THE AVERAGE GROWING SEASON GROUNDWATER SURFACE ELEVATION AND THEN BACKFILLED WITH GROWTH MEDIUM a
<br /> TO ESTABLISH A FINAL WETLAND SURFACE AT THE AVERAGE GROWING SEASON GROUNDWATER SURFACE ELEVATION. DETERMINING THE AVERAGE GROWING SEASON GROUNDWATER SURFACE AND FINAL WETLAND SURFACE ELEVATION IS 0
<br /> CRITICAL TO OVERALL SUCCESS. THE WETLAND CREATION AREA WILL BE DESIGNED TO PREVENT FLUCTUATIONS GREATER THAN 0.5'EITHER ABOVE OR BELOW THE SURFACE. CONFIRMATION OF EXACT SEASONAL GROUNDWATER ELEVATIONS cr,
<br /> SHALL BE COMPLETED DURING FINAI DESIGN AND VERIFIED DURING GRADING OPERATIONS TO ENSURE GROUNDWATER IS INTERCEPTED. SURROUNDING LOCALIZED GRADING SHOULD DIRECT LOCALIZED RUNOFF TOWARDS THE WETLAND. DIRECT 0
<br /> PRECIPITATION FROM SNOWPACK AND RAINFALL AS WELL AS LOCALIZED RUNOFF WOULD BE COLLECTED AND RETAINED WITHIN THE WETLAND COMPLEX CONTRIBUTING TO THE OVERALL WATER SUPPLY.
<br /> N
<br /> a,
<br /> 5. GROWTH MEDIUM WOULD BE PLACED IN THE WETLAND CREATION AREA ONCE OVER EXCAVATED TO A MINIMUM DEPTH OF 1". IDEALLY GROWTH MEDIUM WOULD BE SALVAGED FROM ONSITE AUTHORIZED WETLAND IMPACT AREAS AND PLACED L
<br /> DIRECTLY INTO THE PRE—EXCAVATED WETLAND CREATION AREA. SALVAGED GROWTH MEDIUM WOULD INCLUDE, EXISTING HYDRAULIC SOILS, NATIVE SEED BANK, HERBACEOUS PLANT MATERIAL AND SHRUB ROOT MATS THIS MATERIAL WOULD n.
<br /> BE COLLECTED AND TRANSPORTED TO THE WETLAND CREATION AREA AND PLACED, LIGHTLY COMPACTED TO MINIMIZE AIR POCKETS AND ACCOUNT FOR MINOR SETTLING. ANY SALVAGED GROWTH MEDIUM SHOULD REMAIN MOIST AT ALL 3
<br /> TIMES AND NOT BE STOCKPILED WITHOUT PROTECTIVE MEASURES. IN THE EVENT EXISTING GROWTH MEDIUM IS NOT AVAILABLE FROM AUTHORIZED WETLAND IMPACT SITES, THEN AS AN ALTERNATIVE, PRODUCED GROWTH MEDIUM ^
<br /> WILL BE USED. PRODUCED GROWTH MEDIUM WOULD CONSIST OF MINERAL SOILS (GENERALLY 3/4"MINUS, CRUSHED OR SCREENED MATERIALS) MIXED WITH ORGANIC MATTER (20% COMPOST BY VOLUME OR SMALLER). 3
<br /> .^
<br /> 6. WETLAND VEGETATION SHOULD BE ESTABLISHED FROM VARYING SOURCES, INCLUDING ONSITE SALVAGED WILLOW/HERBACEOUS ROOT MATS, WILLOW STALKING, NATLVE.5011 SEED BANK. SUPPLEMENTAL SEEDING AND NURSEY STOCK (AS
<br /> APPROPRIATE) TABLE 1 PROVIDES RECOMMENDED TYPICAL WETLAND SEED MIX AND LOCAL SHRUBS SPECIES PRESENT IN THE VICINITY CONSIDERED APPROPRIATE FOR WETLAND CREATION. ALL VEGETATION MATERIAL SHOULD BE VERIFIED o
<br /> AND SELECTED BASED ON FINAL DESIGN CONDITIONS. .
<br /> E
<br /> ,
<br /> U,
<br /> nr1
<br /> 0
<br /> In
<br /> I—
<br /> LS
<br /> LU
<br /> O
<br /> ec
<br /> a
<br /> 0
<br /> V
<br /> LU
<br /> W
<br /> o
<br /> t]
<br /> REV DATE DESCRIPTION
<br /> m
<br /> O
<br /> O
<br /> V
<br /> PREPARED BY CLIENT PROJECT TITLE SHEET iY
<br /> W
<br /> A ECOLOGICAL RESOURCES CONSULTANTS,INC SUMMIT COUNTY OPEN SPACE 1
<br /> 1
<br /> 225 UNION BLVD.SUITE 325 AND TRAILS SWAN RIVER RESTORATION PROJECT WETLAND DTLS&NOTES
<br /> LAKEWOOD,CO 80228 2
<br /> A 09-10-19 DRAFT 30%PLANS FOR REVIEW to
<br /> 0
<br />
|