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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
9
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
11
• 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)
12
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
13
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
14
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
19
Next Steps for Proposed Brock Cove SSD Project
20
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