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