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HomeMy WebLinkAboutTC Agd Pkt 2000-09-13 SPECIAL MEETING NOTICE (Joint Meeting with Belvedere City Council) MEETING DATE: MEETING TIME: LOCATION: Sepfember 13, 2000 6:00 P.M. Tiburon Town Council Chambers I. ROLL CALL II. BUSINESS A. BELVEDERE DRAINAGE DIVERSION PROJECT LANDSCAPING 1. LandscaDinl!: Plans (a) Phase I (Approve Final Design/Plan) (b) Phase n (Conceptual Review) 2. Wetlands Restoration (Information) 3. Maintenance & Irril!:ation (a) Short Range Responsibility/Costs (b) Long Range Responsibility/Costs 4. Phase I Cost Estimate & Fundinl!: Sources 5. Implementation Schedulerrimeline III. ADJOURNMENT - to Regular Town Council Meeting, September20, 2000 DEPARTMENT: General Administration INITIATOR: Ed San Diego, City Manager FOR COUNCIL MEETING OF: September 13, 2000 FINAL COUNCIL DECISION BY: September 13, 2000 o CONSENT CALENDAR o PUBLIC HEARING ~ OTHER SCHEDULED ITEM o STATUS REPORT o ORDINANCE o RESOLUTION o CONTRACT/AGREEMENT o INFORMATION ONLY o APPOINTMENTS ITEM: Approve recommended landscape plan for Reed Drainage Diversion Project ATTACHMENTS: None; the proposed landscape plans are too large to reproduce and will be available at the council meeting. STAFF REPORT: In response to concerns expressed about the scope of the landscaping that was to replace the vegetation removed to accommodate the Reed Drainage Diversion system, Belvedere held a community-wide meeting on August I to obtain input from the public regarding what should replace the landscape screening that existed between the multi- use path and Tiburon Boulevard before work began on the project. Based on the input received, a committee comprised of representatives from both Belvedere and Tiburon met with landscape architect Ralph Alexander on four different occasions to develop a landscaping plan that will expand the plantings to provide the screening desired. The plan that was developed by the committee, which it recommends approval of, calls for a two-phase approach to landscaping and beautifying the area that was denuded. PHASE I In Phase I, a total of359 different shrubs and trees would be planted in the area not controlled by Caltrans, a drip irrigation system would be installed to service them, and the entire area would be hydro-seeded upon completion to prevent erosion. The landscape architect informed the committee that the 182 myoporum shrubs to be planted will grow at a very fast rate to a height and width of 10-12 feet in two to three years, thereby providing the desired screening as soon as possible. Irrigation for the plantings would be provided from the City's well that also provides water to Tom Price Park and to the landscaping around the tennis courts on Lagoon Road. Finally, additional mounding between the highway and the multi-use path is being done to help increase the shielding of the pathway and the residents of Lagoon Road from Tiburon Boulevard traffic. The total estimated cost of this portion of Phase I, which does not contemplate an ornamental landscaping approach, is $89,552. In addition to the above, the Army Corps of Engineers is requiring the City to reestablish the wetland area that existed on the south-end of the project site, something that was not originally anticipated. The source of water for this year-round wetland area was found to be a leak in the Marin Municipal Water District water main that runs parallel to the drainage system that is being constructed and adjacent to the former wetland area. The leak has been repaired and the seasonal wetland that will be created in its place calls for the planting of 1,454 2attails, various wetland plants and trees. An irrigation system will be in installed to provide water to the 49 trees that will be planted on the banks of the seasonal wetland area. The estimated cost of the wetland restoration portion of Phase I is $29,000. Both of the above cost estimates include the services of the landscape architect and the monitoring manual he will develop for use by a biologist who must be engaged to monitor the seasonal wetland area. The costs also include the maintenance ofthe irrigation system and all of the plants by the City until they are established (2-3 years), and the services of the biologist mentioned above for 3 years. The total cost of Phase I is estimated to be $118,540. Following is an itemized cost breakdown for Phase I: continued. . . STAFF RECOMMENDATION: Approve Phase I landscaping project (including wetland restoration) and Phase II conceptually ESTIMATED DISCUSSION TIME: 2 hours AGENDA ITEM NO.: Landscaping Staff Report September 13,2000 Page 2 Phase I (Outside of Caltrans ril!ht-of-wav) Medium Shrubs 5 gal. cans 182@$25 Myoporum Shrubs 5 gal. cans 152@$25 Trees 15 gal. cans 25@$150 Mounding & Grading (included in drainage diversion project costs) Hydroseeding 55,302 sq. ft. @$.05 Drip Irrigation lump sum Mobilization lump sum Maintenance 3 Years@ $3,333/yr. Su btotal 10% cont. Su btotal Prof Fees - Design (tIuu 9/15) Prof Fees - Phase II Design (tIuu 9/15) Prof Fees - Construction Drawings Total $ 4,550 3,800 3,750 o 2,765 35,000 2,000 10,000 61,865 6,187 68,052 8,500 4,500 8,500 89,552 $ $ $ Wetland Restoration Trees Wetland Plants Cattails Irrigation Maintenance - Included in Phase I Mobilization - Included in Phase I 49@$25 1,096@$7.50 309@$15 lump sum Subtotal 10% cont. Subtotal Prof. Fees - Design, Construction Drawings & Monitoring Manual Monitoring by Biologist (3 years) Total $ 1,225 8,220 4,635 2,500 o o 16,580 1,658 18,238 6,250 4,500 28,988 $ $ $ $ 118,540 Grand Total - Phase I PHASE II In addition to the work encompassed in Phase I, the Landscape Committee felt that embellishments to the scope of work would be appropriate to consider, providing funding could be raised to defray the cost of added plantings, irrigation and maintenance. It is also predicated on approvals being obtained from Caltrans to use part of the Tiburon Boulevard right-of-way. These embellishments are known as Phase II. Phase II contemplates the planting of an additional 115 shrubs and trees in the Caltrans right-of- way to further reduce the linear impact of the Phase I planting scheme, purchasing a water meter to irrigate the expanded area (the City's well will not be able to support an irrigation system beyond Phase I), and bringing in additional fill material to raise the height of the mound that helps to deflect traffic sound from Tiburon Boulevard. It also includes 3 years of routine maintenance for the plantings. Again, the approach is not to create an ornamental garden, but to provide a more diverse green-belt between the multi-use path and the highway. The estimated cost of this portion of Phase n is $76,875. Should a more ornamental park-like approach be desired, Phase II include some options that call for the planting of ground cover, more shrubs, and irrigation to provide year-round watering. In addition, it would require the purchase of an additional allocation of water from MMWD (almost another acre foot) and mulch for the expanded planting area. The estimated cost of the Phase II options is $108,500. If everything is done in Phase n (options included), the total cost rises to $185,375. Following is a cost breakdown of Phase II and the options: Landscaping Staff Report September 13, 2000 Page 3 PHASE II - Inside Caltrans Ril!ht-of -wav Medium Shrubs 5 ga1.cans 75@$25 $ 1,875 Myoporum Shrubs 5 gal. cans 25@$25 625 Trees 15 gal. cans 15@$150 2,250 Irrigation lump sum 15,000 New Water Meter I 1/2" meter w/.25 ac. ft. 8,500 Mounding and Grading lump sum 25,000 Mobili7.ation lump sum 2,000 Maintenance - 3 years 6.000 Subtotal $ 61,250 10% cont. 6.125 Subtotal $ 73,375 Prof. Fees - Construction Drawings 3,500 Total $ 76,875 Options Ground Cover Including Additional Irrigation lump sum $ 35,000 Additional plantings - shrubs - 5 gal. Cans lump sum 10,000 Mulch lump sum 20,000 Additional Water Supply Additional.95 ac. ft. 19,500 Additional Prof. Fees for above 8,000 Additional Maintenance - 3 years 16.000 Total $ 108,500 Grand Total - Phase II $ 185,375 FUNDING Funding for the above landscaping scenarios must be addressed. For Phase I, a total of$95,000 has been identified thus far and it includes $55,000 in City/Town funding, $20,000 from the Belvedere Community Foundation and the Tiburon Peninsula Foundation in the form of$IO,OOO grants from each that are predicated on a dollar-for- dollar match of contributions from the public (another $20,000). However, that leaves a shortfall of approximately $23,500 that is necessary to fund all ofthe components of Phase I. Following is a detailed breakdown of known anticipated available funding: City of Belvedere From diversion project contract $ FY2000/0 1 Budget Town of Tiburon Belvedere Community Foundation grant Tiburon Peninsula Foundation grant Public Contributions to match foundation grants Total Known Anticipated Available Funding 25,000 20,000 $ 45,000 10,000 10,000 10,000 20,000 $ 95,000 The two Foundations have indicated that they will undertake the fundraising effort to raise the private contributions for the grant matches. However, it is highly unlikely that all of the funding necessary to defray the cost of the Phase I ($1 I 8, 540)--let alone the private contributions to match the foundation grants--will be in-hand before the City is prepared to bid the landscaping project. The two councils will have to decide if it is in the community's interest to front the money necessary to cover the $23,500 shortfall and allow the project to proceed so the planting can go in this winter. Staff would recommend that we do everything possible to accomplish that goal. With regard to Phase II, the two councils and the community will have to decide if it is desirable to undertake the fundraising effort that will be necessary to raise $185,375 if everything is to be done, or the $76,875 if just the plantings in the right-of-way are deemed sufficient. Landscaping Staff Report September 13, 2000 Page 4 IMPLEMENTATION PLAN If the two councils approve Phase I, the implementation plan would entail having the landscape architect prepare construction drawings, the City Engineer prepare bid documents, and the City putting the project out to a fast-track public bid process. The actual schedule for the implementation will be discussed at the joint meeting. If it is deemed desirable to proceed with Phase II and any or all of the options, the actual work on the construction drawings would only be done after a reasonable probability of the funds being raised exists and Caltrans granting approval for an encroachment into its right-of-way appears eminent. Unfortunately, the project's landscape architect will not be able to attend the joint meeting because of a conflict in his schedule. However, the City Engineer will lead the councils through the landscape designs that have been prepared and exhaustively reviewed and subsequently approved by the joint landscape committee.