Community Briefing on Creating a Neighborhood SSD

For:

Brock Cove

1

February 24, 2017Coastal Program Manager Daniel AdamsCoastal Project Manager Rommel Tamayo

Prior Efforts / Reviews

• 1997 Citywide Analysis Too big, too long, unaffordable

• 2004‐2005 Series of 4 Council Briefings Four potential courses of action identified No formal council action

2

Virginia Beach Program• Individual neighborhood SSD Projects

specific scopes Standard frequency (3 cycles, 16 years)

• Includes City‐funded Spur Channels (early appropriations allow for 1st dredging in year 2)

• Those who receive the benefit help pay for the project ‐ Cost sharing (3 sources)

• City management of effort – formulation, funding, design, permitting, construction, maintenance

• Creates a viable solution to reclaim navigation & improve water quality

• Establishes a reasonable timeline with visible results

3

Project Parameters

• Neighborhood channel funded by SSD

• City cost share’s by funding spur channel

• Individual funding of turn basins 

• City management of project

• Economies of scale

• Defined schedule

• Sunset duration4

Fina

ncing

Strategy 3 

FundingSources 

Legal Considerations

• VA Code §15.2‐2403 Authorizes SSDs for navigation

• Minimum of 51% property owner approval

• Formal adoption by City Council

• Council Established 80% property owner approval

• On September 10, 2013, City Council adopted ordinance 

for Tax Relief for Qualifying Senior & Disabled Persons 

5

Project Format• Mechanical Dredging

• Potential for neighborhood dredged material transfer

• City/Neighborhood Dredged Material Transfer Station

• Deposition at City Disposal Area: Whitehurst Dredged  Material Management Area (DMMA) 

•Mitigation

•Vegetated & Non‐Vegetated Wetlands

•Property Values Assumed Constant

•Construction Costs (5% Annual Increase Inflation)6

1. Old Donation Creek 2. Bayville Creek3. Shadowlawn4. Harbour Point 5. Chesopeian Colony 6. Gills Cove7. Hurds Cove8. Buchanan Creek West9. Thoroughgood Cove &

Bayville Creek West10. Hebden Cove11. Witchduck Bay12. Witchduck Point13. Oyster Bluff14. Winthrope Cove15. Brock Cove16. Dix Creek II17. Little Neck Cove18. Brown Cove19. River Haven20. Island Lane 7

21. Channel Points Lane22. Schilling Point23. Greensboro Avenue24. Old Shell25. Owls Creek26. Pembroke Manor27. Lynnhaven Acres28. Cedar Lane29. Broad Bay30. Little Haven Cove31. Jody Cove32. Witchduck Cove33. Witchduck34. Sandy Point35. Robin Hood Forest II36. Dix Creek37. Little Neck Creek38. Buchanan Creek39. Thoroughgood Cove40. Baycliff41. Robin Hood Forest

88

THOROUGHGOOD COVE

BAYCLIFF

GILLS COVE

ROBINHOOD FOREST

CHESOPEIAN COLONY

SHADOWLAWN

HARBOUR POINT

OLD DONATION CREEK

WITCHDUCK COVE

BAYVILLE CREEK

WITCHDUCK

Neighborhood SSD Program Status (41 Projects As Of 02/24/2017)

WITCHDUCK BAY

RIVERHAVEN

DIX CREEK

JODY COVE

HEBDEN COVE

PEMBROKE MANOR

CEDAR LANE

BROAD BAY

THALIA TRANSFER STATION

WHITEHURST DMMALegend:

SSD Ordinance Established (7)Petition Phase (0)Interest Phase (28)80% Interest Not Achieved (6)Disposal Area/Transfer Station

BUCHANAN CREEK

OWLS CREEK

‘PROPOSED’DREDGE TRANSFER 

STATION

‘PROPOSED’DREDGE TRANSFER 

STATION

LITTLE NECK CREEK

HURDS COVE

WINTHROPE COVE

LITTLE HAVEN COVE

BUCHANAN CREEK WEST LYNNHAVEN 

ACRES

SANDY POINT

OYSTER BLUFF

ISLAND LANE

CHANNEL POINTS LANE

BROCK COVE

BROWN COVEOLD SHELL

WITCHDUCK POINT

SCHILLING POINT

DIX CREEK II

GREENSBORO AVE

THOROUGHGOOD COVE & BAYVILLE CREEK WEST LITTLE NECK 

COVE

ROBINHOOD FOREST II

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Linkhorn Bay

Eastern Branch

Long Creek & Broad Bay

Crab Creek

London Bridge Transfer Site

Laskin Road

Whitehurst Dredged  Material Management Area

Upper Western Branch

Thalia Transfer Site

Revised 3/27/13

Lower Western Branch

Proposed Brock Cove

Dredging Cycles• Initial dredging: 2 years after SSD adoption

• Projected cycle: 7 years

• 2nd cycle anticipated at 70% of initial volume

• 3rd cycle anticipated at 50% of initial volume

10

Year 9 162

1st Dredging 2nd Dredging 3rd Dredging

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• 77 Potential Participants

• SSD Channel Length = 12,050 ft = 2.3 miles

• SSD Channel Width = 15 ft to 25 ft

• SSD Channel Depth of Cut = 2.2  ft – 4.5 ft

• SSD Channel Volume = 42,000 Cubic Yards (CY)

• Total Estimated SSD Non‐Vegetated & Vegetated Mitigation Costs = $518,535.50

Proposed Brock Cove

Life Cycle Estimated CostsSSD Portion

(includes 5% cost escalation, 20% design, access basin design, small project mob/demob and design premium, & navigation 

aids)($36.75, $51.72, $72.78)

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Cycle Volume(CY)

Construction Cost

Design Cost

Access Basin Design Cost

Mitigation Cost Total Cost

1 42,000 $1,615,500 $323,100 $192,500 $518,536 $2,649,6362 29,000 $1,499,880 $299,976 $0 $0 $1,799,8563 21,000 $1,528,380 $305,676 $0 $0 $1,834,056

92,000 $4,643,760 $928,752 $192,500 $518,536 $6,283,548

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Proposed Brock Cove SSD Projected SSD Project Cost Distribution

Proposed Brock CoveSSD FY17 Data 

• 77 properties in the neighborhood district

• Total SSD FY17 assessed value: $75,383,700

• Each penny surcharge raises $7,538 / year

• Total SSD neighborhood channel dredging cost: $6,283,548

• SSD rate covers costs for 16 year life:  52.1¢/$100 of the FY17 assessed value

•Review rate at end of every 4th year/end of each dredging cycle

Example: Property Value Cost/Year Cost/Month$250,000 $1,303        $109

$500,000          $2,605  $217

Median $912,400 $4,754 $396

$1,000,000       $5,210        $434

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Life Cycle Estimated CostsIndividual Access Basin Portion (Optional)

15(includes 5% cost escalation) ($36.75, $51.72, $72.78)

CycleMedian Volume(CY)

Median Construction 

Cost

Mitigation Cost 

(If Any)Total Cost

1 299 $10,989 $5.50‐$25.00/SF

$10,989 + Mitigation (if 

any)2 210 $10,862 $0 $10,8623 150 $10,917 $0 $10,917

659 $32,768 $5.50‐$25.00/SF

$32,768 + Mitigation (if any)

Life Cycle Estimated CostsCity Portion

(includes 5% cost escalation, 20% design cost, small project mob/demob and design premium and  & navigation aids)

($36.75, $51.72, $72.78)16

Cycle Volume(CY)

Construction Cost

Design Cost Total Cost

1 5,000 $186,750 $37,350 $224,1002 4,000 $206,880 $41,376 $248,2563 3,000 $218,340 $43,668 $262,008

12,000 $611,970 $122,394 $734,364

Risks:• Environmental permitting

• Real estate bottom rights

• Oyster leases

• Real estate valuation changes

• Cost escalation assumption (5% annually)

• Unknown shoaling rate

17

18

Oyster Leases

• Assess communities willingness to continue • Brief City Council on project • When 80% willing ‐ complete formal petitions• Conduct a Public hearing• City Ordinance establishing SSD• Begin design and permitting

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Next Steps for Proposed Brock Cove SSD Project

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City Neighborhood Dredging Website (FAQ, Procedures, & Presentation):

http://www.vbgov.com/pwdredging

Virginia Marine Resources Commission Website (FAQ & Permit):

http://www.mrc.virginia.gov/hmac/hmoverview.shtm