• 検索結果がありません。

Capital Improvement Program Project Summary Sheet

67%

1%

32%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 24

Stormwater runoff from the Woodlake Meadows Estates community is collected in a detention pond which drains to a grassy swale before discharging to Silver Beach Creek. The existing system does not provide adequate Phosphorus removal and provides an opportunity to manage stormwater from a large drainage area.

Photo 1. Photo 2.

This project would install a Storm Filter with Phosphosorb media downstream of the existing detention pond along existing conveyance prior to discharging to Silver Beach Creek.

This project is located on private property and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff.

$11,000

$173,000 16.5

24.1 68%

September 2017

L C C 2

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

1 3 Habitat creation

x x xpublic property xno permitting x

private property moderate permitting

complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌůď Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

70%

30%

0%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 16

North Lake Whatcom Park has a large grassy meadow near the entrance to the park.

Stormwater runoff from this area is collected in ditches along the north and west perimeter of the site and conveyed north under the park entrance road prior to discharge to Lake Whatcom. There is currently no water quality management of this area.

Photo 1. Photo 2.

This project would install bioretention along the perimeter of the site to provide treatment and infiltration of tributary stormwater runoff in a beautiful and publicly visible facility. Area has shallow slopes and appears to have good infiltration.

This project is located on county property and has no permitting requirements.

$76,000

$450,000 5.9

13.6 43%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

1 3 Habitat creation

x x xpublic property xno permitting x

private property moderate permitting

complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

Euclid Ave 4

$270,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

20%

60%

20%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 20

Stormwater from the west side of Euclid Avenue and properties to the west is collected in a roadside ditch, and conveyed through a culvert beneath Euclid Avenue, and ultimately to Lake Whatcom. There are indications of erosion and sediment transport in the ditch.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 900 linear feet on west side of Euclid Avenue to provide phosphorus removal from tributary stormwater runoff prior to discharge.

This project is located on county property and has no permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$38,000

$270,000 7.2

8.7 82%

September 2017

L C C 4

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 4 Habitat creation

x x xpublic property no permitting x

private property xmoderate permitting

complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌůď Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhosphŽƵƌƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

85%

10%

5%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 6

Stormwater runoff from large residential lawn and the north side of Northshore Drive is collected in a roadside ditch and conveyed in a culvert under Northshore Road to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 275 linear feet of the north side of Northshore Road to provide phosphorus removal from tributary stormwater runoff prior to discharge. Filtered runoff will drain to the existing ditch.

This project is located on county propertLJ and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Northshore.

$16,000

$83,000 5.3

6.2 84%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 4 Habitat creation

x x xpublic property no permitting x

private property xmoderate permitting

complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

Northshore West of Olsen Creek 6

$105,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

25%

70%

5%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 17

Stormwater runoff from large residential lawn and the east side of Northshore Drive is collected in a roadside ditch, conveyed in a culvert under Northshore Road to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 350 linear feet on the east side of Northshore Road to provide phosphorus removal from tributary stormwater runoff prior to discharging to the existing ditch.

This project is located on county propertLJ and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Northshore.

$21,000

$105,000 5.1

6.5 78%

September 2017

L C C 6

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

1 4 Habitat creation

x xpublic property xno permitting

private property moderate permitting

x complex permitting Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

45%

10%

45%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 5

Undersized roadside ditches and culverts clog frequently and cause localized flooding, and discharge untreated stormwater directly to Oriental Creek

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 850 linear feet of an existing ditch on the west side of Lowell Drive from Lakeway to York Street to provide phosphorus removal treatment prior to discharge to Oriental Creek.

This project is located on county property and has no permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$76,000

$255,000 3.3

3.9 85%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

1 4 Habitat creation

x xpublic property xno permitting x

private property moderate permitting

x complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

Euclid at Crescent Street 8

$38,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

30%

10%

60%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 1

Stormwater runoff from residential lawn and the west side of Euclid Avenue is collected in a roadside ditch and conveyed in a culvert under Euclid Avenue to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 125 linear feet on the west side of Euclid Avenue to provide phosphorus removal from tributary stormwater runoff prior to discharge.

This project is located on county property and has no permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$83,000

$38,000 0.5

0.5 85%

September 2017

L C C 8

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 4 Habitat creation

x x xpublic property no permitting

private property xmoderate permitting

complex permitting Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

75%

0%

25%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 7

Stormwater runoff from west side of Lake Whatcom Blvd. and adjacent residential development is collected in a shallow roadside ditch. This ditch is too shallow and doesn't appear to have positive drainage along its length to allow proper drainage.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 300 linear feet of roadway on the west side of Lake Whatcom Blvd.

This project is located on private property and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$14,000

$90,000 6.5

7.6 85%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 4 Habitat creation

x x xpublic property no permitting x

private property xmoderate permitting

complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

South Bay Drive West 10

$79,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

35% 60%

5%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 20

Stormwater runoff from informal gravel driveways, residential development, and the adjacent hillside is collected in a e     e   e     e    

  e    S. Bay Drive      e   e       e e   to Lake Whatcom through a culvert beneath S. Bay Drive.

Photo 1. Photo 2.

This project would install a   e       e     e  e     e      e     e e            

 

This project is located on county propertLJ and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in South Bay.

$10,000

$79,000 8 2

10 5 78%

September 2017

Lake Whatcom Comprehensive Plan: Stormwater Capital Program Update B-10

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 5 Habitat creation

x xpublic property no permitting x

private property xmoderate permitting

x complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌyear removed

Less than 5 lbƐ ƉhosphoruƐƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

65%

5%

30%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 3

Stormwater from the east side of Northshore Road south of Eagle Ridge Drive is collected in a grassy roadside ditch and conveyed directly to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 650 linear feet of existing ditch to provide phosphorus removal treatment prior to discharge to Lake Whatcom.

This project is located on county propertLJ and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Northshore.

$79,000

$195,000 2.5

2.9 85%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

3 5 Habitat creation

x x public property no permitting x

xprivate property xmoderate permitting

complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌlb Ɖhosphorus removed

Total Benefit Score 1

Greater than 5 lbƐ ƉhospŚŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

Eagleridge Pond at Northshore 12

$277,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

60%

20%

20%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 54

The Eagleridge development has a large existing detention pond adjacent to the Northshore Drive ROW that does not currently provide water quality treatment. This location is an opportunity to treat stormwater runoff from a large area in one location on public property.

Photo 1. Photo 2.

This project would install a Storm Filter with Phosphosorb media along conveyance piping between the detention pond discharge structure and the public storm main along Northshore.

This project is located on private property and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Northshore.

$9,000

$277,000 31.9

46.7 68%

September 2017

L C C 2

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 5 Habitat creation

x public property xno permitting

xprivate property moderate permitting

x complex permitting Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌyear removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

50%

20%

30%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 3

Private detention pond serving residential development with no water quality treatment.

Photo 1. Photo 2.

This project would install a Storm Filter with Phosphosorb media on the discharge pipe from the detention pond.

This project is located on private property and has no permitting requirements. This project was recommended by the property owner. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$14,000

$24,000 1.8

2.6 68%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 5 Habitat creation

x public property xno permitting

xprivate property moderate permitting

x complex permitting Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽĞƌƵƐ ƉĞƌyear removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

Lowe Avenue North 14

$240,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

25%

60%

15%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 7

Stormwater runoff from Lowe Avenue is collected in a roadside ditch and conveyed north to Oriental Creek. The ditch is very steep and deep in places and erosion is a problem along the roadway and along private property. The ditch may convey baseflow during the rainy season.

Photo 1.

This project would stabilize the channel and install a Media Filter Drain (MFD) along approximately 400 linear feet of roadway on both sides of Lowe Avenue to treat the stormwater prior to entering the creek channel.

This project is located on private property and has no permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$90,000

$240,000 2.7

3.1 86%

September 2017

L C C 4

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 5 Habitat creation

x xpublic property no permitting

private property xmoderate permitting

x complex permitting Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

60%

10%

30%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 2

Lakeside Street is a very narrow street with no formal conveyance on the east side, allowing stormwater to sheetflow towards private residences and ultimately Lake Whatcom. Stormwater on the west side of the roadway is collected in ditches, and conveyed directly to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 450 linear feet on the west side of Lakeside Street from Euclid Ave to Kansas Street.

This project is located on county propertLJ and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in Geneva.

$93,000

$135,000 1.5

1.9 78%

Project Name Project Rank Estimated Cost

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 5 Habitat creation

x xpublic property no permitting x

private property xmoderate permitting

x complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌ year removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

Blue Canyon Road East 16

$45,000 EXISTING CONDITIONS

PRIORITIZATION

Whatcom County

Capital Improvement Program Project Summary Sheet

5%

92%

3%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 72

Stormwater runoff from large residential lawn and the east side of Blue Canyon Road is collected in a roadside ditch, conveyed in a culvert under Blue Canyon Road to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 150 linear feet on the east side of Blue Canyon Road to provide phosphorus removal from tributary stormwater runoff prior to discharge.

This project is located on county propertLJ and has moderate permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in South Bay.

$18,000

$45,000 2.5

11.8 21%

September 2017

L C C 6

Land Use

Basin Size acres

Lawn Impervious Forest

Water Quality Project Cost Information

Total Annual Phosphorus Load lb Estimated Cost

Estimated Load Removed (LB) lb Cost per lb P Removed

Estimated Treatment Rate

2 5 Habitat creation

x xpublic property no permitting x

private property xmoderate permitting

x complex permitting x Aesthetics

Ancilary Benefits Combined Score

Public education/

visibility Feasibility Score

1

Less than $100,000 per lb Ɖhosphorus removed Cost Effectiveness Score

Greater than $100,000 ƉĞƌ lb Ɖhosphorus removed

Total Benefit Score 2

Greater than 5 lbƐ ƉhosphŽƌƵƐ ƉĞƌyear removed

Less than 5 lbƐ ƉhosphorusƉĞƌ year removed

EXISTING CONDITIONS

PRIORITIZATION

Project Summary Sheet

4%

94%

2%

PROPOSED IMPROVEMENTS

Residential - Low Density, Roadway 11

Stormwater runoff from large residential lawn and the east side of Blue Canyon Road is collected in a roadside ditch and conveyed in a culvert under Blue Canyon Road to Lake Whatcom.

Photo 1. Photo 2.

This project would install a Media Filter Drain (MFD) along approximately 80 linear feet on the east side of Blue Canyon Road to provide phosphorus removal from tributary stormwater runoff prior to discharge.

This project is located on county propertLJ and has minor permitting requirements. This project cost effectively removes Phosphorus from runoff. This project can be constructed along with other projects in South Bay.

$33,000

$25,000 0.8

1.6 48%

関連したドキュメント