Bloedel Donovan Park Stormwater & Shoreline Improvements. Public Meeting Gina Gobo Austin, PE May 28,

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1 Bloedel Donovan Park Stormwater & Shoreline Improvements Public Meeting Gina Gobo Austin, PE May 28,

2 Meeting Overview Introductions Meeting purpose Background Funding & Schedule Existing Studies Existing Condition Photos Design Next Steps Overview photo circa 1960 s 2

3 Why are we here? Present the design Talk about how it came to be Answer questions Meeting Purpose Bloedel April 2013 SCP August 24,

4 Planning Master Plan circa 1980 s Amendment June stormwater improvements 2. beach improvements 3. pervious pathway 4. non-motorized boathouse 5. enhanced planting 6. native planting mitigation 7. loop trail March 29, 2012 public meeting Background 4

5 Electric Avenue Background 5

6 QJ ~ ::::::s c QJ > <( Lake Whatcom u " +-' u QJ ~- ~----- future stormwater infiltration improvements r-, I I future -,..:-..:...4::::;---;79!9, I hand launch I ' Beach Area boat dock future stormwater infiltration improvements _j~~ ~~ /:'), existing - -='---(t:r.;rl 1 sand volley ball p.: f... va"' r-; ~ 1'-\ - 1 existing pathways -..±.~,;:; ''~ ~;; ~ ;;:====:,;._--=:~;:ti;;a[s"---:-~m existing --=++..L~?~~ft;----;:~~'ttM~ playground existing public -~~~~~~7J:~L--;~~~~P-~W.~R'r restroom future boathouse._-::-;:--,.r,,... existing jl community building ' existing ;i.+.;.-+...;i.~'----t:;~ park building existing---- rain garden ~4' l~1:r---- future partial replacement of non-native plants, creation of view corridors ~.~~-~~----=::----future pathway ~~~~~~r.:r:~=----'t.lm:- future stormwater ~ infiltration improvements, typical ~~~~~~...l.=----~lm'"-- existing pavilion patio ~~~;,...-;;-:--~~---- existing pavilion building ~ft'-- future beach enhancement hand launch boat doc,/ ", alternate location /,/ boat dock 1 v boat dock e-"7'9z:...-:--- boat ramp 2 --~----boat ramp 3._.~~--- existing rain garden exist i ng -~:-- park sign Background 6

7 111ti ~\.J --...,.,... future native mitigation/planting area relocate steam engine ---~ offsite future boathouse location alternate (approx.) Play Fields Lake Whatcom --a- llgihpot..c POWER POLE ElECTIIJCAl cornao. SOX OVCllHEAOPOWERU~E TELEPHONE SOOTH 0 0 QC " CB CONCRITT PADS w/ PICNIC TABLES SANITARY SE WER MANHOLE CATCH BASI ~ QUICK COUPLER S'GN WATE"VALvt BltASS PLUG TBM GAS METER CXJSTING Wl>UWAYS M D TRAILS FUTURE PLANTI'G ENHMCEMENT l823:ej FUTURC SOfT SHOflCLINC C:::::J EXISTING WET\AAD Background 7

8 What are we doing? Stormwater Improvements Reduce nutrient & bacteria loading Shoreline Improvements Mitigate erosion & reduce maintenance Background Why now? Council Priority Funding Opportunity Bloedel circa 1980 s 8

9 Who is paying for this? PW Ecology Grant Match $128,000 PW ALEA Grant Match $150,000 Ecology Stormwater Grant $384,000 Aquatic Land Enhancement Account $150,000 Funding and Schedule Low Lake Levels Bloedel November 1,

10 When are we doing this? Design - Now Permit - Now Hearing July 2014 Bid - July 2014 Construction Start Sept 2, 2014 Construction Complete ~ Nov 2014 Funding and Schedule High Lake Levels Bloedel May 15,

11 Existing Conditions Photos Overview 11

12 July 8,

13 October 10,

14 March 16,

15 October 10,

16 October 10,

17 October 31,

18 October 31,

19 October 31,

20 June 4,

21 June 4,

22 May 15,

23 October 31,

24 November 1,

25 April

26 Existing Studies 1. Jongejan Gerrard Associates, Inc. Bloedel/Donovan Park Renovation Plan. circa Ayers Professional Group. Bloedel Donovan Park Topographic Survey. November 19, Larry Steele & Associates. Record of Survey. November 18, GeoEngineers. Lake Whatcom Watershed Infiltration Study. May 13, Northwest Ecological Services. Bloedel Donovan Wetland Determination. March 22, COB. Bloedel Donovan Park Maintenance & Management Plan. March Washington State University. Turf Letter. March 22, COB Parks. Bloedel Master Plan Amendment. July 2, Element Solutions. Critical Areas Report for Proposed Rowing Float & Boat Storage Building. Aug 27, COB Public Works. Initial Water Quality Sampling Report. May to October GeoEngineers. Geotechnical and Hydro-geologic Memo. July 3, COB Public Works. Predesign Report. December 10, Geotechnical Work April 16,

27 Design Pre-Design Report Drainage Basins Preferred Design Cross Sections Preliminary Design Bloedel May 15,

28 Predesign Report 7 design options Criteria for decision Ecology requirements High treatment value Low maintenance Least impact to public 28

29 u.i > < 0 ~ 0 ~ w 1-1 -LAKE WHATCOM- ll * ~ * B-1. r HA.I II D It 0. ' \. ~ HA1+ Hand /Wger by GooE...J,; by 1911 rs it! ~ gwel c::::::::::::j - A?! ~= B D fl Basl'IC i!t B 0 \\ :1 a 0.. * - la e:i llle!efs It D D " It D 0 Noles I Existing Conditions - Basin p 1. Tho bcatoons al..._.. 119approunlll. 2. Thisctswingls lor ll'lormaflon-. his ID_in Vowinglein.>"'5d,SQISS8dinan- GeoE~. loc. CIMOl _... h occuncy 8"'..,,,... al...,.. lies. The mas:e< le is soeo by GeoEngorwn. he. a!ld.. U"""'aslhoo'lioall1ICXlldallM r----ljiiiii --FEET 60 I 30".4 DBSION Bloedel Donovan Park!=:Inn- ' lrofil.d Figure 1 t--~~~~- ---.,,--~~~~ GEOENGINl!l!RS Design 29

30 Design Concept MFD w/sand Design 30

31 ELECTRIC AVENUE Lake Whatcom EXISTING VOLLEY BALL 31

32 EXISTING PAVILION 32

33 l'l (I) < 0 32 MIN 6" EXISTING MEDIA FILTER DRAIN NEW TURF GRAVEL GROUND -1.5' ' >----->-~~~~---~~~--~ ~~~~~~---~~~~---~ OHWM/FLOOD -313' 0 ~ 31 ~ ~ SAND r"' ~~3 1 0 MIXTURE EXISTING STEM WALL (TO BE REMOVED) 30 t----t-~~---t~~~+--~~-+-~~--+-~~--+-~~-----t~~~+--~~-+-~~ o+oo SECTION A-A' 33

34 l'l ({) < 0,.-+ 0 :::J 330- EXISTING GROUND MEDIA FILTER DRAIN MIN6" ==-=i--~~~~~~~ OHWM/FLOOD -313' WINTER WSE 309.9' ~~~~~~~~~~~~~--+~~~~---==\=-~~---""--~~~~1-310 EXISTING BULKHEAD (TO REMAIN) ~~--~~--~~--~~--~~-----;~~~--~~--~~~-300 o+oo 1 + oo SECTION B-B' 00 c i""'himm --FE"" 34

35 l'l (1) < 0 0 :J o+oo EXISTING GROUND MIN 6" NEW SLOPE VARIES 4:1 TO10:1 MEDIA FILTER DRAIN OHWM/FLOOD -313' ~ ~-J WINTER WSE 309.9' ~::~D~~===~~===:_± EXISTING BULKHEAD (TO BE REMOVED) 1 +oo SECTION C-C' I

36 ITl (!) < 0 0 ::J EXISTING - GROUND - SLOPE VARIES r- 6:1 TO10:1 _/ SAND NEW SLOPE VARIES 4:1 TO 8:1 MIN6" MEDIA FILTER DRAIN EXISTING BULKHEAD (TO BE REMOVED) OHWM/FLOOD -313' WINTER WSE 309.9' rt~~~r----~~-r-~~---t~~~-+-~~--+~~~+----~~---+-~~ J_-300 o+oo 1 +'oo SECTION D-D' 36

37 Next Steps Complete design Apply for permits City storm/grading Ecology storm Advertise for bid 37

38 Bloedel Donovan Park Stormwater and Shoreline Improvements Presented by: Gina Gobo Austin, PE Project Engineer, Parks Design and Development Division (360)

39 39

40 Comments 40

41 Comments 41

42 Comments 42