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Home My WebLink About1997-01-14; City Council; 13994; BUENA VISTA LAGOON STRATEGIC PLANI 9ITY OF CARLSBAD - AGENIJA a BILL 'I- ,f ,' I c; P AB# /'q 9 ?4 CITY ATTY.6 BUENA VISTA LAGOON STRATEGIC PLAN MTG. 1 - /qH 77 DEPT. HD. 1 E: I DEPT. PLN I "--- I CITY MGR 5 I L $3 a FL & w ,*-2' %." ". SA4 IdI* 4 .. z 0 F: 0 a -I 0 - 2 3 0 0 RECOMMENDED ACTION: That the City Council APPROVE Resolution No. 9 9 - 16 ADOPTING the Buen Lagoon Strategic Plan as developed by the Buena Vista Lagoon Joint Powers Comn ITEM EXPLANATION: The Buena Vista (BV) Lagoon and watershed area is bordered by the cities of Ocear the north, Carlsbad to the south and Vista to the east. Since 1982 the Joint I Committee (JPC), comprised of public officials, resource agency staff and citizens fr three cities, has acted as an advisory body regarding activities that could affect the or upstream watershed area. I After a September 25, 1996 workshop attended by various public officials, reg agency staff members and concerned citizens, a draft strategic plan for the Buen: Lagoon was developed for the purpose of 'I.. .maintaining a healthy lagoon ecosyst future generations" (which is the strategic plan's mission statement). On December 2 the nine voting members of the JPC voted to adopt the strategic plan. The next st€ have the three JPC cities adopt the plan through City Council action. Council adop the strategic plan will show support for the mission of maintaining a healthy ecosystem in concert with the efforts of other cities and regulatory agencies involvc BV Lagoon. Adoption of the strategic plan by City Council Resolution is recommendec Given the above background information, various aspects of the proposed Buen: Lagoon Strategic Plan are as follows: * The strategic plan is a unifying document between the cities that border the I: the authorized regulatory agencies that oversee the lagoon, the I environmental groups that protect and monitor the lagoon and the Departn- Fish and Game (FIG) which owns the lagoon for the people of the State of Cali * The strategic plan will provide an overall context for the Joint Powers Commi justify its efforts to monitor and protect the lagoon including: the pursuit of 1 grants or funding applications, lending its support or opposition to certain pr and providing a framework for the JPC's review of projects and proposals af the lagoon and watershed. The strategic plan does not modify the existing regulatory powers of any city, official, resource agency or existing laws. The City will not have any legal e regulatory powers reduced by the adoption of the strategic plan. * PAGE 2 OF AGENDA B ILL NO, 13 y? y! 0 i * The adoption of the strategic plan will not commit the City to any budget allo or to financial commitments of any kind. The standard City process for review, approval and financing will not be affected by the strategic plan. Adoption of the strategic plan will allow the Department of FIG to devc mandated management plan update consistent with the objectives and goal5 strategic plan. Adoption of the strategic plan will show the Council’s support for the unified c maintaining the lagoon in a healthy manner. It also gives credibility to the dol in its role as representing a consensus among the lagoon’s major “stakeholder monitor, protect and/or regulate the lagoon in coordination with lagoon’s own€ and Game) * * The strategic plan (attached) is broken down into five primary goals, three of whi further broken down into discrete strategies and related objectives. In additil overriding Mission Statement is contained with the strategic plan which is “to pl: manage a healthy ecosystem in the Buena Vista Lagoon and Watershed for generations”. The five stated goals to carry out this mission statement are to: Goal #I-Enhanc protect fish, wildlife and their habitat. Implementing strategies include: (a) increase/ habitat in and around the lagoon and incoming waterways; (b) reduce unwanted spec improve quality of water entering the lagoon and its waterways, and; (d) improve quality in the lagoon. Goal #2 - Improve water flow manaqement and flood control laqoon and watershed. Implementing strategies include: (a) reduce sediment enteri lagoon; (b) improve upstream flood control abilities; (c) improve water flow throu! lagoon/watershed system; (d) implement effective water flow control at the lagoon I enhancing and maintaining the lagoon and watershed. Implementing strategies incluc create, implement and maintain a united strategic plan; (b) create a management p the lagoon and watershed; (c) increase the effectiveness of the Joint Powers Com (d) develop strategies to increase financial support for the lagoon and watershed, a take advantage of legislative opportunities. Goals #4 and 5 will be supplemented with specific strategies during future strategl annual assessments. Goal #4 is to improve environmentally compatible recreatic Goal #5 is to create an effective, integrated educational and promotional effort. Critical to the adoption and implementation of the strategic plan is the fact th Department of Fish and Game participated in its development and confirmed the de5 its updated management plan to be consistent with it. The strategic plan will be reL long term successful implementation. and; (e) reduce sediment in lagoon. Goal #3 - Develop resources and partnersh and assessed annually. Fish and Game’s support of the strategic plan is necessary PAGE 3 OF AGENDA Q LL NO. ITi 9 9 y 0 FISCAL IMPACT: Apart from typical staff work associated with the Joint Powers Committee a implementation of the strategic plan, no direct fiscal impacts to the City are anti1 unless City funding for various Buena Vista projects or other efforts is proposed. Ir cases, each specific project or task will be evaluated and ultimately brought befc Council for review and approval. EXHIBITS: 1. City Council Resolution 9 '7- lh 2. List of Strategic Plan Workshop Participants i 1 2 3 4 5 6 7 0 0 RESOLUTION NO. 9 7 - 16 I A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CAL.IFORNA, ADOPTING THE BUENA VISTA LAGOON STRATEGIC PLAN AS DEVELOPED BY THE BUENA VISTA LAGOON JOINT POWERS COMMITTEE. CASE NAME: BUENA VISTA LAGOON STRATEGIC PLAN WHEREAS, the City Council of the City of Carlsbad is represe councilmembers and staff on the Buena Vista Lagoon Joint Powers Committee; and 8 9 10 WHEREAS, the City Council through involvement with the Joint Committee, works in unison with other cities, regulatory entities and citizens to mor 11 I/ promote the long term maintenance of the Lagoon’s ecosystem and natural environment; 12 II WHEREAS, the Joint Powers Committee has developed a strategic 13 concert with the California Department of Fish and Game which retains ownershi l4 Lagoon; and 15 11 WHEREAS, the strategic plan represents the collective objectives and c 16 17 of the those who regulate and’or protect the Lagoon and upstream watershed area; and 18 19 of the Joint Powers Committee by a 9-0 vote on December 3, 1996; and WHEREAS, the strategic plan was initially adopted by the nine voting 20 WHEREAS, the strategic plan will be brought before the City Counc 21 22 three cities on the Joint Powers Committee (Carlsbad, Vista and Oceanside) for formal 23 24 26 25 Carlsbad, California as follows: 28 NOW, THEREFORE, BE IT RESOLVED by the City Council of tl 27 and WHEREAS, the long term implementation of the strategic plan will he1 through the Joint Powers Committee to fulfill the mission of maintaining a healthy 1: watershed ecosystem for future generations. II 0 e 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 1. That the Buena Vista Lagoon Joint Powers Committee Strate; shown on Exhibit “A”, attached hereto, is hereby adopted. 2. That City of Carlsbad representation on the Joint Powers Cornmi. ~ continue in the future for the purpose of implementing the Buena Vista Lagoon Strategic I 1 PASSED AND ADOPTED at a regular meeting of the City Council of thl ~ Carlsbad on the 14th day of January 1997, by the following vote, to wit: AYES: Council Members Lewis, Finnila, Nygaard, Kulchin ar NOES: None ABSENT: None ATTEST: ALETHA L. RAUTENKRAM. City Clerk (SEAL) - -L- 1 0 - Strategic Pian Fitlai Dra3 0 tXH DX?: i2 MISSION STATEMENT: (I To plan and manage a healthy ecosystem in the Buena I’isra Lagoon arrd Waterslzed for future generations. ” GOAL I: ENHAYCE AND PROTECT FISH, WILDLIFE AND THEIR HABIT, A. STfWTEGY: Increaselprotect habitat in and around the lagoon and incoming watenv Objectives: 1. Develop a program to identify enhancement opportunities for properties around the 1; 2. Raise funds 3. Formalize and make effective the means by which the PC reviews and comments on 4. Run a public education program 5. Maintain lagoon as an important migratory stop 6. Maintain, develop and increase appropriate development setbacks around lagoon and 7. increase the role the PC takes in activities within the geographic area which affect f2 8. Purchase landeasements on the following properties: ..._ IO. Gain land owner support for voiuntary habitat improvements 1 1. Protect and enhance the noise levels around the lagoon B. STRATEGY: Reduce unwanted species Objectives: 1. Develop a sustainable program for controlling cattails and unwanted reeds 2. Identify the worst exotics and develop a plan to controYeliminate them 3. Develop Integrated Pest LManagement plans for mosquito control 4. Reduce hybrid and feral duck populations 5. Educate the public C. STUTEGY: Improve quality of water entenng the lagoon and its waterways and in the watershed development projects lagoon and watershed - 9. Identify and make available databases and information critically important to the rnis Objectives: I. Define and implement Best Management Practices for storm water pollution control, include: roads, parking lots, freeways 2. Review erosion control and drainage improvements thsr have been implemented by t cities in the last 5 years and determine what st111 needs to be done. Help set pri ’ Coordinate minlng, reclamarlon. and future developmenr oi South Coast Matenals si benveen Ocemslds and Cxlsbad ÈÁ re nu Ymra Luyuurt JUU'CG~L A ,un - rtnal uran - 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Strictly enforce erosion control ordinances Mesure and monitor water quality in watershed and lagoon Educate the public about Sfom drains, poilution, erosion. prevention. etc. S tnctly enforce existing laws Improve erosion control efforts in the upper watershed (outside of cities) Educate contractors about sediment control at construction sites Develop and implement plans to control and restnct contamination during ernergenc: releases Educate the public Reduce sources of pollutants in the watershed, eg., encourage and improve oppomn: Reduce litter for oil recycling D. STRATEGY: Improve water quality in the lagoon Objectives: 1. Desig, hnd, and construct a new weir at mouth of lagoon to help move sediment OL 2. Explore the possibility of creating a brackish system in an area of the lagoon 3. Encourage an ecosystem of plants and animals that will help reduce existing contarni the lower lasoon and increase flushing of pollutants GOAL 11. IMPROVE WATER FLOW MAYACEMENT AiiD FLOOD CONTR WITHIN LAGOON AND WATERSHED A. STUTEGY: Reduce sediment enterino, the lagoon Objectives: 1. Revisit, complete and implement the Buena Vista Creek enhancement plan. 2. Review erosion control and drainage improvements that have been implemented by t cities in the last 5 years apa determine what still needs to be done. Help set pri 3. Coordinate mining, reclamation, and future development of South Coast Materials si between Oceanside and Carisbad 4. Define and implement Best Management Pnctices for storm water pollution control, 5. Measure and monitor water quality in watershed and layon 6. Develop and implement plans to control and resmct contamination during emergenc: 7. Strictly enforce existing laws 8. Educate the public 9. Improve erosion control efforts in the upper watershed (outside of cities) 10. Educate the public about storm drains, pollution, erosion, prevention etc 1 1. Educate contractors about sediment control at construction sites include; roads, parking lots, ffeeways releases , Buena Vista Lapoon teric Pian - Final Dra I B. STRATEGY: Improve up~trem flood control abilities Objectives: 1. Revisit, complete and implement the Buena Vista Creek enhancement plan. 2. Explore possibilities of new ordinances for on -site flood control for new housing an( developments (eg., porous driveways, French drains below downspouts, etc) C. STFUTEGY: Improve water flow thou& system Objectives: 1. Replace weir and improve its ability to meet PC goals and objectives 2. Increase box culvert flow thrmgh capacity 3. Remove old pilings under the railroad trestles D. STR4TEGY: Implement effective water flow controi at lagoon mouth Objectives: 1. Replace and improve weir E. STRATEGY: Reduce sediment in lagoon Objectives: 1. Research dredging opportunities 2. Research alternative sediment removal techniques 3. Improve weir to increase sediment outflow ~ GO.4L 111: DEVELOP RESOURCES AND PARTNERSHIPS FOR ENH.4NCING II.IAINTMNING LAGOON AND WATERSHED .4. STRATEGY: Create, implenent and naintain a united strategic plan Objectives: 1. Have an annual, united strategic planning process 2. Develop working relationships with agencies 3. Promote privatdpublic partnerships 4. Find finding opportunities 5. Create committees to pursue most important objectives B. STRATEGY: Create a management plan for the lagoon and watershed Objectives: I LVork with Department of Fish and Game in their process . BLma Vista Lacoon !epic Pian - Final Draft ! C. STEUTEGY: Increase effectiveness of PC Objectives: I. Increase its effectiveness as a leader in the area 2. Gain the right to levy penalties for pollution D. STRATEGY: Develop strategies to increase financial support for lagoon and watershe Objectives: - 1. Prepare lagoon as a potentia1 mitigation site 2. Establish a grants team 3. Identify and recruit a larger donor ana corporate donor support base 4. Develop an education and public media campaign E. STRATEGY: Take advantage of legislative opportunities Objectives: 1. Set up a strategy to identifL legislative opportunities. Work with lobbyist of existing organizations (Nature Conservancy, DFG, cities, etc) 2. Develop a list of projects which would benefit from agency/government/legislative fi opportunities. Know what research has already been done on projects 3. Educate elected ofilciais about lagoon's priorities. Set up an annual Sacramento educ day GOAL IV: IMPROVE ENVIRONMENTALLY COMPATIBLE RECREATION A. STRATEGIES: 1. Design, fund, and build boardwalk across Lagoon kom Carlsbad to Oceanside - possi coordinate as part of the Coastal Rail - Trail Project 2. Improve access and parking 3. Build board walkways, picnic areas, paths and bike paths 4. Create links to other appropriate recreational uses in watershed GO.4L V. CREATE AB EFFECTIVE, INTEGRATED EDUCATIONAL AYD PROMOTIONAL EFFORT L .- -. -. . . .V , - LAUWUIY TRATEGIC PLANNNG WORK .s SEPTEMBER 25,1996 wp EX1 LIST OF PARTICIPANTS Facilitator: Kevin Wolf Kevin Wolf and Associates 724 North Street Davis CA 95616 I. Annette Antle BVL Foundation 2. Regg Antle BVL Foundation and JPC 3. Dave Anderson San Diego County - Vector Control 4. Bill Daugherty BVL Audubon Society 5. .Penny Dockry Natural Resource Conservation DistricUSan Diego 6. Tim Flanagan City of Vista/JPC - Engineer County 7. Ramona Finniia Councilmember/JPC - City of Carlsbad 8. Betty Harding Councilmember/JPC - City of Oceanside 9. IO. ,11. 12. 13. 14. 15. 16. 17. 18. Thelma Hayes Jerry Hittleman Don Jackson Steve Jantz Troy Kelly Carole McCauley Bob Morin Eric Munoz Rob Rundle Diane Van Leggelo BVL Foundation City of Oceanside - Environmental Planner BVL Foundation City of Carlsbad/JPC - Engineer California Department of Fish and Game/JPC Councilmember/JPC - City of Oceanside City of Oceanside/JPC - Engineer City of CarlsbadlJPC - Planner SANDAG City of Oceanside/JPC - Planner 19. Ron Wooten BVL Foundation and JPC 20. David Zoutendyk Army Corps of Engineers 21 Jack Noble San Diego County Vector Control 22. Jeff Manning US Fish and Wildlife Service 23 Margarette Morgan BVL Foundation I I I t I I 1 I N I 1 1 I I 1 I 1 1 I BUENA VISTA LAGOON HILL STREET / CARLSBAD BOULEVARD BOARDWALK Preliminary Concept Plan -t Prepared for BUENA VISTA LAGOON FOUNDATION Prepared by Wallace Roberts & Todd November 199 1 I 1 1 1 I I 1 1 1 I 1 I 1 1 I I I I 1 HILL STREET I CARLSBAD BOULEVARD BOARDWALK Preliminary Concept Plan Table of Contents Landscape Inventory Project Description Design Considerations Cost Estimate Approvals and Permits summary References and Acknowledgements ” List of Figures Preliminary Concept Plans Scheme A Scheme B Scheme C Boardwalk Sections Boardwalk Viewing Pier Boardwalk Elevation Cost Estimate Table Page: 1 2 3 4 5 6 7 i I 1 1. 1 I' 1 I 1 I 1 I c I I i 1 1 1 LANDSCAPE INVENTORY The Buena Vista lagoon is a two hundred acre Ecological Reserve located along the northwes boundary of the City of Carlsbad and the southwest boundary of the City of Oceanside. It is 1 only fresh water lagoon ecosystem in the coastal chain of wetlands in San Diego County. The Buena Vista Audubon Society Nature Center is located at the northern edge of the lagoon regarding the natural surroundings and natural history of the lagoon. There are 58 parking sp, proposed for the Nature Center, two of these are handicap accessible parking spaces. Currenl there are approximately 16 parking spaces at the Nature Center. Along the lagoon edge the Nature Center has constructed an information kiosk about the wetlz and the lagoon and the plant and wildlife species that inhabit the lagoon. The California State Department of Fish and Game has also posted signage at the edge of the lagoon regarding regulations for the reserve. There are informal trails leading northeast around the lagoon edge adjacent to a condominium complex and terminating several hundred yards east. The center h also included a few concrete picnic tables for sitting along the northern edge of the lagoon. On the southwest side of the lagoon is located Maxton Brown Park in the city of Carlsbad. TI park is situated along the perimeter of the lagoon up slope approximately 25 feet from the shoreline. It is bordered by Lagoon Road, and the intersection of State Street and Carlsbad Boulevard. Most of the park is located on a gently sloping site with varying grades of approximately four to eight percent. There are meandering concrete paths and turf areas as we a few picnic tables. Between the trees planted along the edges, there are limited views of the the City of Oceanside. It offers field trips, monthly lectures and children's tours and program lagoon. There is no off-street parking available at the park. Hill Street / Carlsbad Boulevard is a major link between the City of Carlsbad and the City of Oceanside. There are two lanes in the north bound direction narrowing to a single lane at the ( of Oceanside boundary. There is a single lane and a left hand turn lane in the south bound direction turning into two lanes as it heads into the main core of Carlsbad. It is an important s corridor between the two communities. Currently there are no pedestrian improvements on th eastern or western edges of the roadway except north of the curb cut at the Nature Center. Tl is a painted bike lane. The roadway has an undeveloped shoulder varying in width, adjacent t lagoon shoreline edge. The edge condition of the lagoon is dominated with plant life, consisting mostly of tules, catta sedges and bulrushes. From a street level it is difficult to view the water of the lagoon except culvert area which is clear . Pedestrians wishing a view of the lagoon and its wildlife, as well fishing pier, often stand at this narrow part of the roadway shoulder. This is a dangerous and uncomfortable observation area because of the speed and close proximity of the vehicles using street. 1 1 I 1 1 1 I 1 1 1 1. a i I 1 I 1 ! I I PROJECT DESCRIPTION This proposal is focused on taking a preliminary look at the concept of providing a public use which would be an important north-south link in the regional trail system of the City of Carlst and the City of Oceanside. Public interest in the site lies in passive recreation including fishin walking, nature study, education and interpretation of the site's unique ecological habitat. General guidelines that should be considered in the design of the site layout of the boardwalk should include consideration of those areas with: the preferred foundation condition, clearance from flooding, eaisy access for the reach of the equipment, labor and materials, and the areas that the users will prefer and enjoy the most. Scheme A: This scheme locates the boardwalk parallel to Hill Street / Carlsbad Boulevard. This boardwa would have a strong linear visual quality. The boardwalk would be elevated above the 100 ye flood line, a minimum of four feet above the elevation of Hill Street / Carlsbad Boulevard. TI elevation would allow the boardwalk pedestrian the opportunity to view large portions of the lagoon. However, in this scheme the entire boardwalk would be elevated, blocking views to lagoon from the roadway. Previously, the Buena Vista Lagoon Foundation had discussed th of locating the boardwalk five feet from the street edge. The boardwalk would be separated fi the road by a five foot wide planting buffer of low growing native plants. This design would similar to the typical pedestrian improvements for the ten foot public right of way adjacent to streets, except the pedestrian sidewalk would be elevated, in the form of a wooden boardwalk structure, above the street level. A preferable alternative, would be to locate the elevated boardwalk as far from the street edge as possible. A minimum of fifteen feet would allow a g sense of removal from the street and would mitigate the awkwardness of being elevated above adjacent vehicular traffic. Another option would be to lower the boardwalk to the elevation of adjacent roadwa.y, but this would be under the 100 year flood line. Scheme B: Scheme B would locate the boardwalk parallel to the contours of the lagoon shoreline. This i! currently the edge of the dense vegetation within the lagoon adjacent to the street. This would provide a naturalistic, meandering pedestrian system around the lagoon edge. This system w( require on site skilled labor to match the boardwalk structure to the existing contours of the si1 The boardwalk within this scheme could be elevated above the flood line as in Scheme A, or r at the elevation of the adjacent street, within the floodway. Scheme C: Due to the diversity of the site it would be pleasant to experience the lagoon from various elevations. An overview of the lagoon and the panoramic vistas to the east could be provided the elevation change at Maxdon Brown Park. Viewing platforms along the boardwalk would users to sit and rest as well as take advantage of views of the lagoon. A floating deck section the boardwalk at water level would provide a sense of removal from the roadway and its pron vehicular noise, The floating deck could allow users, as observers, to participate within the n, systems of the lagoon. Scheme C incorporates the idea of a floating deck system wherever 01 water is available. A floating system could also adjust to the fluctuation of water levels, and t designed to rise with flood conditions. In areas of dense vegetation the boardwalk could be elevated, similar to Schemes A and B. 2 1 I 1 I I 1 I I 8 B I I i I I 1 E I 1 DESIGN COIVSIDERATIONS The boardwalk design should be the continuation of a path system. Access paths to the boarc should be widened to a minimum of six feet to facilitate easy pedestrian flow and handicappa accessibility. A’ccess ramps will be necessary for elevated portions of the boardwalk. Desigr consideration should take into account what must pass underneath the elevated boardwalk.(ie maintenance inspection boats, wildlife, etc.) The conceptual design of the boardwalk substru should be done iLt the same time as the design of the boardwalk deck and approaches. The de of the boardwalk will require the assistance of a structural and/or civil engineer. Ground for foundations should be tested for soil bearing capacity. A geotechnical engineer SI be consulted regarding the stability of the site for foundations and the need for abutments on slopes. Design for the handicapped user should include provisions for the approach to the elevated with local and state codes. boardwalk Land.ings, platforms, rest areas, handrails and the walking surface should all coml Smtial Standards Pedestrian Handicapped Two-way Traffic 6””’ min. 5””’ min. Unobstructed Vertical Clearance 8””’ preferred 8’-0” preferred 7””’ min. 7””’ min. Lateral Clearance Grades Cross Slope 1’-6” preferred 1 ’-6” preferred 1’-0” min. l’-O” min. 5% preferred 15% max. 5 % preferred 8.33 % ma. (single run- 30’ max.: 5% or less preferred 1 % or less preferred 6% max. 2% max. Timber structurt:s expand in relatively small amounts. Structures over 100 feet in length will I special expansion bearings. Lightweight vibration from heavy use may move the boardwalk o bearings or floolding may float it away. Most timber structures should be held down by bolts stainless steel traps. Handrails should be designed on both sides of the boardwalk to extend the entire length of the boardwalk and the length of the approach ramps. The handrails should be designed so they a~ easy to grasp and strong enough to support people leaning or sitting on them. The top rail hei should be a minimum of 42 inches. A mid rail as well as a toe board should be included. Decking and suface treatment should be non-slip and should be laid with no less than 1/4” between boards to allow air to circulate around the boards. This air space will minimize decal 3 I 1 1 I 1 I I 1 1 I 1 1 I i I 1. 1 1 1 allow dirt and debris to sift through the decking and facilitate easier maintenance when damagc boards will need to be removed and replaced. All decking should be placed heart side down a screwed to bearers with galvanized screws or nails. Because timber decks wear over time the thickness of the decking material should be more than is required for strength of the system. Generally, if softwood is to be used the thickness should be no less than two inches, hardwoc less than 1 1/2”. Short panels of prefabricated wood deck panels would facilitate removal for maintenance. Decking and handrails should be timber structures to blend in with the surroundings. Substru could be composed of timber which has a maintenance cost which is moderate to high. The lit span of treated sawn timber is 15-20 years. As an alternative, concrete substructures are high the initial cost for construction but are low in cost for the maintenance, For the purposes of easy maintenance main beams should be easiiy viewed for inspection dor their entire length especially at piers and end seats. Handrails and decking should be designec they can be easily removed and replaced. To allow maintenance inspections to be easily performed anchor points for harnesses should t provided. Periodically vegetation and soil should be cleaned from the decking and free air sp; maintained around beam ends. All fastenings should be checked and tightened if loose. All timber should be treated with an anti-fungicide. Wood preservative and anti-fungicide shc be reapplied every 3 years. All painted metal should be repainted every 5 years. Rust should cleaned every year and coated with an anti-rust primer.[ll COST ESTIMATE At MacArthur State Park in southern Florida, a similar boardwalk has been implemented over dunes and mangrove wetlands of the site. The elevated wooden boardwalk structure costs for 1,500 linear foot section, eight feet in width was approximately $340.00 per linear foot. This included the wood framing and wood pilings. (Adjusted to California 1991 construction cost All materials and applications must be approved for use in wetland situations as stipulated by t California Department of Fish and Game and the U.S. Fish and Wildlife Service. See cost estimate table for total prices per alternative schemes. L I I I I I I I I 1 1 I Note: Prlca per linear foot is for an eight fool width and includes wood framing, wood pilmg and labor Floatlng dock price per linear foot IS based on a prefabncated module, eight foot width, by Galvitoam SCHEMEA: Elevated wooden boardwalk parallel to street edge Concrete walk connections to existing pedestrian system @ Maon Brown Buena Vtsta Nature Center Boardwalk could be preassembled In sections off me. Concrete walk connectban to Manon Brown Park SCHEMEB Elevated wooden boardwalk at shorellne edge. Boardwalk would require more onslte skilled labor to match contours of the shi SCHEMEC. Elevated wooden boardwalk over Land areas ramped down to fbatlng boardwalk at Buena Vsta water level 4 1 1 1 I I I I I I 1 I 1 I 1 E I 1 I I APPROVALS AND PERMITS As with any other land use proposal the implementation of a boardwalk system will be subjecl review from a variety of agencies from whom approvals and permits may be required for the project to proceed. The proposed boardwalk is located adjacent to an area of sensitive wildlife habitat where state federal listed species occur. The boardwalk proposal will include review by the following agencies: The California Department of Fish and Game The US, Fish and Wildlife Service The Coastal Commission The Environmental Protection Agency, The U.S. Army Corp of Engineers, The City of Carlsbad, and The City of Oceanside Specifically a Section 404 Permit will be required from the U.S. Army Corps of Engineers wherever any type of dredge or fill of wetlands is involved. (Areas of wetland which are und one acre in size and in isolated locations relative to other wetlands may fall under the definitio a Nationwide Permit and avoid the need for a Section 404 Permit.) Habitat areas of federally endangered species will be subject to Section 7 consultations with the U.S. Fish and Wildlife Service. Section 7 of the federal act requires all federal agencies to consult with the Service regarding any federal action (e.g., granting a permit to dredge or fill wetlands under section 404(b)(l) of the Clean Water (Act) that might affect an endangered species. Those running through state listed endangered species habitat will be subject to Section 10 consultations with California Department Fish and Game. Section 10 (a) was added as an amendment to the Endangered Species Act in 1982. Section 10(a) permits incidental takings if the activity is supported by an approved habitat conservation plan and will not reduce the likelihood of the species survival and recovery. The Coastal Commission will not issue a permit per se, but wi have review of the proposals to confirm accordance with local Coastal Zone Plan Requiremer Given that public access is a key concern of the agency, it is unlikely that significant problem! regard to a public trails system would originate with the Coastal Commission. Coordination with the above listed agencies will be needed to refine a final alignment. Additic local specific design standards may be required. Early involvement of agencies such as the California Department of Fish and Game, the U.S. and Wildlife Service, the Coastal Commission, the Environmental Protection Agency, and the U.S. Army Corps of Engineers will help ensure that the boardwalk system is planned and designed in an environmentally sensitive manner consistent with agency requirements. 5 I I 1 I I I I 1 I I 4 1 I 1 E I 1 I I SUMMARY The implementation of a pedestrian system from Maxdon Brown Park to the Buena Vista Lagc Nature Center would provide a safe pedestian Knkage to a regional system in keeping with th, long range planning objectives for the City of Carlsbad and the City of Oceanside. The board would provide a recreational access for the residents in the surrounding neighborhoods as we1 increase and enhance public access to viewing the unique ecosystem of Buena Vista Lagoon. In order to achieve the desired scenic experience for both pedestrians and Hill Street vehicles, Scheme C offers the better opportunities. Prefabricated sections of floating decks are availabk less expensive than fixed sections in most cases, making Scheme C the more economical soh curvilinear boardwalk, following the layout of Schemes A or B. Modifications to the straight linear alignment can be made to the prefabricated pieces to allow ' 6 I I 1 I 8 I 1 16 I 11 II II I1 I1 1A I il 1 I REFERENCES: [ 11 Harris, Charles W. and Dines, Nicholas T. Time-saver Standards For Landscape Architec McGraw-Hill, Inc. New York, 1988. ACKNOWLEDGEMENTS: Buena Vista Lagoon Foundation Ron W. Wootton, President Buena Vista Lagoon Audubon Society Nature Center California State Department of Fish and Game Earl Lupe City of Carlsbad Mark Steyaert Jr., ASLA, Park Development Coordinator City of Oceanside Coastal Commission U.S. Army Corp of Engineers Elizabeth White, Project ManagerBiologist U.S. Fish and Wildlife Service Prepared by: Wallace Roberts & Todd Kathleen Garcia, Project Director 1133 Columbia Street, Suite 205 Mary Hofmockel, Project Landscape Designe San Diego, CA 92101 Victoria Olsen, Project Administrator (619) 696-9303 7 II II I1 i R 1 I 8 rn 8 I I 1. I B' I I I I \"~" 7 C E P - 5 -3 3 --? ti lurm a g* c og 4 I >% :i ! i 4%; ;! $25 2* 8 -@E Y! W' !/ $3 21 Om I- i rrQ -' "m A$!$ 4 rlB 0 @ W U 3 $$g k55 58: 0 gzk $E 5:s ;gg :: :z 23 p3C 00 3 P nw $2 $ gE UU ml- O* 3e nl [Lg ww WL I I I I I I I I I I I I i I E I I B *4"" CS' 'hi, "Y. ) Io* v). e >',s,,,, ,,:// / i3 m\m I 0. : ' f\\ 1' bq /J i \. 'Oi, ..I I:!/: * i ): @+:;\ .: . . 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