SCOPE & SCHEDULE TECHNICAL FLOWCHART POTENTIAL RETROFIT SITE - - PowerPoint PPT Presentation

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Mar 04, 2024 578 likes •780 views

SCOPE & SCHEDULE TECHNICAL FLOWCHART POTENTIAL RETROFIT SITE TYPES Existing Stormwater Facilities Cost Effective Retrofits Parcels w 3 ac Feasible Land Available (FLA) FLA -> Shrub, Pasture, Grass Potential Locations

SLIDE 1

SCOPE & SCHEDULE

SLIDE 2

TECHNICAL FLOWCHART

SLIDE 3

POTENTIAL RETROFIT SITE TYPES

Existing Stormwater Facilities

– Cost Effective Retrofits

Parcels w ≥3 ac Feasible Land Available (FLA)

– FLA -> Shrub, Pasture, Grass – Potential Locations for New Facilities

Publicly Owned Parcels with <3 ac FLA

– Potentially more feasible for pilot/demonstration projects

Right of Way (ROW) Segments

– ROW Segments Draining to the Same Point

SLIDE 4

INITIAL POTENTIAL RETROFIT SITES

Summary of PRS0 Type Number Existing Facilities 163 Parcels with ≥ 3 acres FLA 106 Publicly Owned Parcels with < 3 acres FLA 42 ROW Segments 61 Total 372

SLIDE 5

EXISTING STORMWATER FACILITIES

Upstream Areas Adequately Detained or Infiltrated with

Limited Potential for Additional Drainage Area

Foot Print of Facility <5,000 ft2
Limited Existing and Potential Drainage Area

Filter 1 Screens

SLIDE 6

Existing Stormwater Facilities

§ ¨ ¦5

1 8 t h A v e S E M a r t i n W a y E Match Line Fones Rd SE Pacific Avenue

Legend

Stream Pipe or Ditch Private Stormwater Facility Parcel

Jurisdiction

Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA

Filter 1 Southern

SLIDE 7

South Bay Rd Libby Rd NE 3 6 t h A v e N E Match Line

Legend

Stream Pipe or Ditch Private Stormwater Facility Parcel

Jurisdiction

Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA

Existing Stormwater Facilities Filter 1 Northern

SLIDE 8

Parcels with ≥3 ac FLA

Upstream areas adequately detained or infiltrated with

limited potential for additional drainage area

Parcels Located at Watershed Boundary
Limited Drainage Area
Poor Location of FLA on the parcel

Filter 1 Screens

SLIDE 9

§ ¨ ¦5

1 8 t h A v e S E Martin Way E Match Line Fones Rd SE Pacific Avenue

Legend

ROW Pour Point Stream Parcel > 3 continuous acres FLA < 3 continuous acres FLA

Jurisdiction

Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA

Parcels with ≥3 ac FLA Filter 1 Southern

SLIDE 10

South Bay Rd Libby Rd NE 3 6 t h A v e N E Match Line

Legend

ROW Pour Point Stream Parcel > 3 continuous acres FLA < 3 continuous acres FLA

Jurisdiction

Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA

Parcels with ≥3 ac FLA Filter 1 Northern

SLIDE 11

Publicly Owned Parcels <3 ac FLA

Sensitive area (Forest or Wetland)
Existing Facility Occupies Parcel
Limited Existing and Potential Drainage Area

Filter 1 Screens

SLIDE 12

South Bay Rd L i b b y R d N E 36th Ave NE Match Line

Legend

Stream Parcel Public Parcel Private Parcel

Jurisdiction

Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA

Filter 1 Northern

Publicly Owned Parcels <3 ac FLA

No Publicly Owned Parcels After Filter 1

SLIDE 13

§ ¨ ¦5

1 8 t h A v e S E Martin Way E Match Line Pacific Avenue Fones Rd SE

Legend

Stream Parcel Public Parcel Private Parcel

Jurisdiction

Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA

Filter 1 Southern

Publicly Owned Parcels <3 ac FLA

SLIDE 14

ROW Segments

< 1 acre of ROW

Filter 1 Screens

SLIDE 15

§ ¨ ¦5

Fones Rd SE Martin Way E Match Line 1 8 t h A v e S E Pacific Avenue

Legend

Pour Point Pipe or Ditch Stream Parcel Jurisdiction Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA ROW Segment

Filter 1 Southern ROW Segments

SLIDE 16

South Bay Rd Libby Rd NE 3 6 t h A v e N E Match Line

Legend

Pour Point Pipe or Ditch Stream Parcel Jurisdiction Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA Olympia - Incorporated UGA ROW Segment

Filter 1 Northern ROW Segments

SLIDE 17

Filter 1 Potential Retrofit Sites

Summary of PRS0 and PRS1 Type PRS0 PRS1 Existing Facilities 163 7 Parcels with ≥ 3 acres FLA 106 13 Publicly Owned Parcels with < 3 acres FLA 42 8 ROW Segments 61 32 Total 372 60

SLIDE 18

SCOPE & SCHEDULE

TECHNICAL FLOWCHART

POTENTIAL RETROFIT SITE TYPES

– Cost Effective Retrofits

– FLA -> Shrub, Pasture, Grass – Potential Locations for New Facilities

– Potentially more feasible for pilot/demonstration projects

– ROW Segments Draining to the Same Point

INITIAL POTENTIAL RETROFIT SITES

Summary of PRS0 Type Number Existing Facilities 163 Parcels with ≥ 3 acres FLA 106 Publicly Owned Parcels with < 3 acres FLA 42 ROW Segments 61 Total 372

EXISTING STORMWATER FACILITIES

Limited Potential for Additional Drainage Area

Filter 1 Screens

Existing Stormwater Facilities

Filter 1 Southern

Existing Stormwater Facilities Filter 1 Northern

Parcels with ≥3 ac FLA

limited potential for additional drainage area

Filter 1 Screens

Parcels with ≥3 ac FLA Filter 1 Southern

Parcels with ≥3 ac FLA Filter 1 Northern

Publicly Owned Parcels <3 ac FLA

Filter 1 Screens

Filter 1 Northern

Publicly Owned Parcels <3 ac FLA

No Publicly Owned Parcels After Filter 1

Filter 1 Southern

Publicly Owned Parcels <3 ac FLA

ROW Segments

Filter 1 Screens

Filter 1 Southern ROW Segments

Filter 1 Northern ROW Segments

Filter 1 Potential Retrofit Sites

Summary of PRS0 and PRS1 Type PRS0 PRS1 Existing Facilities 163 7 Parcels with ≥ 3 acres FLA 106 13 Publicly Owned Parcels with < 3 acres FLA 42 8 ROW Segments 61 32 Total 372 60

Questions?