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1 La Pata Avenue Gap Closure and Camino Del Rio Extension American Society of Civil Engineers March 15, 2011 Harry Persaud, AICP, PMP.

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Presentation on theme: "1 La Pata Avenue Gap Closure and Camino Del Rio Extension American Society of Civil Engineers March 15, 2011 Harry Persaud, AICP, PMP."— Presentation transcript:

1 1 La Pata Avenue Gap Closure and Camino Del Rio Extension American Society of Civil Engineers March 15, 2011 Harry Persaud, AICP, PMP

2 2 Project Location

3 3

4 4 Project Background  La Pata Avenue included on Orange County Master Plan of Arterial Highways (MPAH) since 1963  La Pata and Camino Del Rio shown on City of San Clemente General Plan since 1982 and Talega and Forster Ranch Specific Plans  The existing La Pata Avenue built in the 1970s as a "dead-end" landfill access road  Project initiated in Three years of coordination with City and resident groups resulted in an alignment responding to concerns of proximity, light and glare, and aesthetics.

5 5 Project Location

6 6 Project Purpose and Objectives  Implement Orange County MPAH, Circulation Elements of San Clemente and San Juan Capistrano, and Specific Plans for Talega and Forster Ranch  Provide north/south access for local traffic  Improve access to schools, commercial areas, and recreational amenities  Improve emergency access  Reduce Vehicle Miles Traveled (VMT) and greenhouse gas emissions

7 7 Project Purpose and Objectives (continued)  Facilitate local inter-community circulation  Provide increased network capacity to support the forecast travel demand for the 2035 design year  Minimize impacts to utility transmission infrastructure  Minimize impacts to existing residential land uses  Minimize impacts to the natural environment

8 8 Proposed Project Alignment

9 9 Proposed Project  Widen La Pata Avenue from three to five lanes from Ortega Highway to the existing road terminus at the Prima Deshecha Landfill (PDL) – a distance of 9,600 feet  Construct four new lanes from the existing PDL terminus to Calle Saluda – a distance of 10,100 feet  Extend Camino Del Rio, as a four-lane roadway, from its existing terminus to the proposed Avenida La Pata – a distance of 1,700 feet  Estimated Total Cost: $77,368,000

10 10 Proposed Project  Lighting will be provided along Camino Del Rio, on La Pata between Calle Saluda and Camino Del Rio, and on La Pata north of the landfill entrance to the project limits.  Sidewalks will extend along Camino Del Rio to La Pata and on the west side of La Pata from Calle Saluda to Camino Del Rio and from Vista Montana north to the project limits.  Bike lanes will be provided along both La Pata and Camino Del Rio. San Clemente’s off-road bike path east of La Pata will be extended north to the city limits.  The roadway project requires grading of 9 million cubic yards. 3 million cubic yards are required to balance the roadway. The remaining 6 million cubic yards are required to stabilize a large landslide complex. All earthmoving is balanced on site.

11 11 Alternatives

12 12 Environmental Issues Addressed  Aesthetics (Views)  Air Quality (including Green House Gases)  Biological Resources  Cultural Resources  Geology and Soils (landslides)  Hydrology and Water Quality  Hazards and Hazardous Materials  Land Use and Planning  Noise  Public Services and Utilities  Recreation (Multi-use Trails)  Traffic and Circulation

13 13 Engineering Challenges and Solutions  Community Impacts  Electric Transmission Facilities  Prima Deshecha Landfill  Geology  Water Quality

14 14 Design Challenges & Solutions  Talega  Community Workshops  Horizontal & Vertical Alignment Refinements  7% Grade Design Deviation  Berms to reduce visual impacts  Forster Ranch  Trailhead parking  La Pata Trail Over-crossing  Rubberized Asphalt to Reduce Noise Impacts

15 15 Electric Transmission Facilities Solution  Early Coordination Workshops with SDG&E and SCE  7% Grade Design Deviation  Tower relocation Plan Coordinated with SDG&E  Facility Access Plans Incorporated into Design

16 16 Prima Deshecha Landfill Solution  Design Addresses Existing Access Requirements to Zone 1  Design Addresses Future Access Requirements to Zone 4  Three Bridge Structures eliminate need for signalized intersection access  Grade separations will maintain access to and between Zone 1 and Zone 4

17 17 Landslides in Project Area

18 18 Landslide C Remediation Concept  9 million c.y. removal  2 million c.y. buttress fill  3 million c.y. to balance roadway grading  4 million c.y. recompaction consistent with landfill general development plan 9 million c.y. Excavation 2 million c.y. Buttress Fill

19 19 Geotechnical Solutions  Identified Remediation Concepts to assure construction feasibility  Remediation Plan to accommodate roadway construction and landfill operations  Remediation Concept to balance earthwork on site.

20 20 Water Quality Solutions  Six water quality basins to provide load reductions and detain runoff  Bio-retention planter boxes proposed in constrained right of way areas

21 21 Significant Unavoidable Impacts  Traffic:  2016 – I-5 Northbound ramps/Avenida Pico and I-5 Northbound direct on-ramp from Crown Valley Parkway  2035 Without SR-241 Scenario – I-5 Northbound ramps/Avenida Pico  Improvements currently being planned and funded by M2 will reduce impacts.  Air Quality: Construction Emissions – CO, ROC, NO X, PM 10, and PM 2.5  Contributions to regional air quality thresholds  Localized Impacts – Worst Case Assumptions  Noise: Increased traffic on Camino Del Rio forecast to exceed 65 dBA at 6 modeled locations  Several 4-foot noise walls are recommended and will reduce significant impacts.

22 22 Visual Simulation Near Calle Gaulteria Existing With Roadway

23 23 Visual Simulation on Forster Ranch Ridgeline Trail Existing With Roadway

24 24 Aesthetics – Cross Sections

25 25

26 26

27 27

28 28

29 29 Traffic - Study Area

30 Daily Traffic Volume Without Project With Project

31 Daily Traffic Volume Without SR-241 Without Project With Project

32 Daily Traffic Volume With SR-241 Without Project With Project

33 33 Vehicle Miles of Travel  A Comparison of daily vehicle miles travelled (VMT) within the study area shows the following reductions as a result of the project. ScenarioVMT , Without SR , With SR ,115

34 34 Noise – Monitored Locations

35 35 Proposed Noise Mitigation (Del Rio)

36 36 Projected Traffic Noise Levels

37 37 Recreation

38 38 EIR Process NOP Public & Agency Review and Comment Public & Agency Review Draft EIR Final EIR EIR Certification Scoping MeetingPublic Meeting San Clemente and County Planning Commission Hearings County Board of Supervisors Meeting Prepare Technical Studies

39 39 Community Outreach  San Juan Capistrano Transportation Commission – November 10 at 6:00 p.m.  Mission Viejo City Council Briefing – November 15, 2010 at 6:00 p.m.  San Juan Capistrano City Council Briefing – November 16, 2010 at 6:30 p.m.  San Clemente Planning Commission Briefing – November 17, 2010 at 7:00 p.m.  Public meeting – November 18, 2010 at 7:30 p.m.  Ladera Ranch Civic Council Briefing – November 22, 2010 at 7:00 p.m.  Forster Ranch HOA meeting – December 7, 2010 at 6:00 p.m.  San Clemente Planning Commission Hearing – December 8, 2010 at 7:00 p.m.

40 40 Project Schedule Notice of Preparation (NOP)November 10, 2009 (30 day review period) Publish Notice of Availability (NOA) and Public Circulation of DEIR November 3, 2010 (45 day review period) DEIR Comment Period ClosesDecember 17, 2010 Prepare Final EIRMarch, 2011 County Planning Commission HearingApril, 2011 County Board of Supervisors Hearing FEIR Certification New RFP (NEPA) and (Design) April, 2011 Design ROW, Permits, Funding (Road, RMV, M2 State Federal) Construction

41 41 Questions?


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