Riverside Overpass Master Planning
Presenters: Sally Swanson & Magdy AbdallaJune 11, 2013
SALLY SWANSON ARCHITECTS, INC.
Riverside Elementary SchoolWest Contra Costa Unified School District
220 Sansome Street, Suite 1100, San Francisco CA 94104 | T: 415-445-3045 | www.swanarch.com
Existing School Site
Master Plan Objectives
Caltrans Proposed Solution
Alternative Locations
Desired District Outcomes
Conclusion
Questions and Answers
Agenda
Existing School Site
Master Plan Objectives
The School’s Master Plan focuses on three elements
Transportation& CirculationBuildingsOpen Space
Master Plan ObjectivesOpen Space
Designate open spaces and create policies to ensure preservation and maintenance
Identify safe areas and pleasant open spaces
Landscape elements
Incorporate accessibility
Design standards that will increase safety and comfort
1
6
Master Plan Objectives
Minimal conflicts between pedestrians and vehicles
Increase parking facilities- visitor and disabled parking
Clearly identify entries into school- including signage and security
Transportation & Circulation
2
Master Plan ObjectivesBuildings
High quality architecture and open space
In harmony with immediate surroundings
Facilitate accessibility and pedestrian circulation
Environmentally sustainable landscape
Economically feasible and functional
Support green and sustainable techniques
3
Master Plan Limitations 1. Site Approx. = 5.925 Acres CA Department of Education Standards = 10 Acres
2. Hayward Fault
3. Noise from freeway
4. Lack of required District facilities
5. ADA code violations
Caltrans Proposed Solution
Caltrans Proposed Solutionat I-80 and San Pablo Dam Road
Design not to ADA codes: Path of Travel
‒ In vehicular way‒ No designated path
Location to Administrative Entrance – 380 feet
Accessible space not compliant‒ Not Van accessible‒ Aisle not on passenger side
Reconfiguration of parking necessary
Parking Lots and Spaces
Caltrans Proposed Solution
4- story structure
Creates danger zone
Parking - Pedestrian movement in conflict
Location hides parking
Design Security Concerns
Caltrans Proposed Solution
Danger Zone
Fire Lane
Four- story structure‒ reduces site square footage
Reduces available parking
Space Concerns
Caltrans Proposed Solution
The scale of the overpass is not compatible with the height and design of Riverside Elementary
Cars, copper piping, & Computers
Disabled access in conflict with vehicular traffic
Lack of site control
Compromised Community
Caltrans Proposed Solution
Caltrans Proposed Solution
Noise Concerns
Landscaping removed
Does not improve site acoustics
Overpass traffic on school site cannot be controlled
Caltrans Solution AnalysisCaltrans Design
Pros• Project is designed• Approach is obtained• Potential funding available
Cons
• Creates security concerns• Utilizes desired acreage• Enhances compromised
community• Impacts landscaping• ADA non-compliance
ALTERNATIVE LOCATIONS
Alternative #1: West side of Amador on Caltrans property
Alternative Locations
Pros• No property acquisition• No utility line replacement• Maximizes site utilization
Cons
• Amador St. requires traffic controls
• Redesign required• Additional timing• Possible CEQA
Conceptual Alternative Analysis
Alternate #1
Alternative #2: Corner property at Riverside Avenue
Alternative Locations
Pros
• Minimal traffic interface• No utility line replacement• Maximizes site utilization• Appropriate scale• Minimal redesign
requirements
Cons• Property acquisition• Additional timing• Possible CEQA
Conceptual Alternative Analysis
Alternate #2
1. Safe staff student ingress/egress
2. Maximize available site acreage
3. Clearer line of site to all points on campus
4. Mutually agreeable overpass solution
Desired District Outcomes
Conclusion
Decision needs to be made due to cost constraints
Save Overpass Funding
Construct Overpass
Finalize Master Plan
Provide Best Development Outcomes
QUESTIONSAND
ANSWERS
Alternative #3: Acoustic barrier adjacent to Amador Street
Alternate 3
Alternative #4: Acoustic barrier adjacent to Amador Street
Alternate 4