Participant s initial briefing on Creating a Neighborhood SSD to Partner with the City for Dredging. Robin Hood Forest.

Transcription

1 Participant s initial briefing on Creating a Neighborhood SSD to Partner with the City for Dredging Robin Hood Forest October 18,2010 DCM Dave Hansen Phill Roehrs 1

2 Prior Efforts / Reviews 1997 Citywide Analysis Too big, too long, unaffordable Series of 4 Council Briefings Four potential courses of action identified No formal council action 2

3 ROBIN HOOD FOREST 3

4 4

5 5

6 Legal Considerations VA Code Authorizes SSDs for navigation Minimum of 51% property owner approval Formal adoption by City Council Staff recommending 80% property owner approval 6

7 Current Proposal: 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 duration 7

8 Real Estate Voluntary Dedication of Construction Easements and Rights-Of-Way 8

9 Project Format Mechanical Dredging Potential for neighborhood dredged material transfer City Dredged Material Transfer Station Deposition at City Disposal Area :Whitehurst Borrow Pit 9

10 POTENTIAL MECHANICAL DREDGING TRANSFER SITES Maple Street Crab Creek Long Creek & Broad Bay Upper Western Branch Linkhorn Bay Lower Western Branch Eastern Branch Laskin Road -TBD Former Recording Studio V.B. Blvd.-TBD 10

11 Dredging Cycles Initial dredging: 2 years after SSD adoption Projected cycle: 7 years 2 nd cycle anticipated at 70% of initial volume 3 rd cycle anticipated at 50% of initial volume 1 st Dredging 2ndDredging 3rdDredging Year

12 1 st Dredging Cost Estimate City Portion: $78,120 SSD Portion: $372,279 Individual Channels: $5,000 average 1 st Dredging engineering and construction contract could reach $600,000 Includes design, administrative costs, survey, construction and navigation aids 12

13 Life Cycle Estimated Costs City Portion Cycle Volume Cost CY $78, ,519 CY $73, ,085CY $73,655 4,774 CY $225,052 (includes 5% cost escalation) ($30, $40.20, $56.57) 13

14 Life Cycle Estimated Costs SSD Portion Cycle Volume Cost 1 10,341 CY $372,276* 2 7,239 CY $349, ,171 CY $350, CY $1,072,466 (includes 5% cost escalation) * Does not include initial navigation aids costs 14

15 Appropriations Schedule Cycle Year Design Construction 1 1 $100,000 2 $350, $100,000 9 $322, $100, $324,000 Total $300,000 $997,518 Neighborhood & City channels only = $1,297,518* * Does not include initial navigation aids costs 15

16 SSD Data Total SSD assessed value: $19,285, properties in the neighborhood district Each penny surcharge raises $1928/year SSD rate covers costs for 16 year life: 34.8 /$100 of the FY11 assessed value Average property contributes $2,581/year Review rate at end of every 4 th year 16

17 Timeline 2 years from SSD adoption to first cycle of dredging for engineering, real estate and permits 2 nd and 3 rd cycles each 7 year thereafter Sunset in 16 years 1 st Dredging 2ndDredging 3rdDredging Year

18 Risks: Environmental permits Encroachment approval Real estate dedication Real estate valuation changes Cost escalation assumption (5% annually) 18

19 Status quo Alternatives: Basin wide SSD : properties, $3M/yr + 10 years completion, $30M in 1997 dollars Expand City main channel projects to include spur channels: no ROI via confirmed neighborhood spurs, + $4million Cost sharing on a single dredging basis: 65/35 but not all coves were the same Fully funded by City: takes ownership = $35M in 2005 dollars 19

20 Hybrid Alternative: Individual neighborhood SSD s, specific scopes and timelines (3 cycles, 16 years) Includes City-funded Spur Channels (early appropriations allow for 1 st dredging in year 2) Partnership - 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 20

21 Staff Recommendations: Concur with the hybrid alternative... and If accepted by neighborhood - obtaining 80% approval (signed SSD intent & easement dedication) Authorize staff to bring forth an SSD ordinance for public hearing and City Council consideration 21

22 Next Steps for Robin Hood Forest Validate willingness to reach 80% Brief City Council on likelihood Staff authorization Execute documentation Public hearing City Ordinance establishing SSD 22