Albany Beach Restoration and Public Access Project
|Sponsoring Agency||East Bay Regional Park District|
|Watershed Tributary||Codornices Creek|
|Public or private land?||('Public',)|
|Location (lat/lon)||37.88893, -122.31676|
|Location Description||The Albany Beach Restoration and Public Access Project is located on San Francisco Bay, in the city of Albany, Alameda County, California, and is a part of Eastshore State Park. The project is located at the end of Buchanan Drive just north of Golden Gate Fields Race Track.|
The Albany Beach Restoration and Public Access Project is located on San Francisco Bay, in the city of Albany, Alameda County, California, and is a part of Eastshore State Park. The Albany Beach Restoration and Public Access Project - consists of shoreline repair and reconstruction, habitat enhancement, beach renovation, recreational amenities, and construction of San Francisco Bay Trail public access improvements. The project will repair and reconstruct 2,000 feet of shoreline along the Albany Neck shoreline and install accessibility improvements. In addition, the project includes beach and dune enhancement, recreation improvements, restroom, parking and construction of 800 feet of new San Francisco Bay Trail adjacent Albany Beach.
The Albany Beach Restoration and Public Access Project is located on San Francisco Bay, in the city of Albany, Alameda County, California, and is a part of Eastshore State Park. The Albany Beach Restoration and Public Access Project - consists of shoreline repair and reconstruction, habitat enhancement, beach renovation, recreational amenities, and construction of San Francisco Bay Trail public access improvements. The project will repair and reconstruct 2,000 feet of eroding shoreline along the Albany Neck shoreline and install accessibility improvements. In addition, the project includes beach and dune enhancement, recreation improvements, restroom, parking and construction of 800 feet of new San Francisco Bay Trail adjacent Albany Beach.
Part 2 - Detail
The Albany Beach Restoration and Public Access Project - consists of shoreline repair and reconstruction, habitat enhancement, beach renovation, recreational amenities, and construction of San Francisco Bay Trail public access improvements. The project will repair and reconstruction and install accessibility improvements to 2,000 feet of shoreline along the Albany Neck shoreline. In addition, the project will include beach and dune enhancement, recreation improvements, restroom, parking and construction of 800 feet of new San Francisco Bay Trail at Albany Beach.
The Albany Neck shoreline reconstruction will include removal of debris including concrete and metal rubble, possible recontouring shoreline slopes to create intertidal and subtidal habitat, placement of stabilized rock toe and slope protection, shoreline rock, soil and geotextile fabric placement, and planting native grasses and shrubs on upper slopes. The goal is to minimize bay fill to only that which is required to maintain public and emergency vehicle access along the south Neck and for beneficial habitat enhancement and needed shoreline stabilization. Removal of debris, including broken concrete, asphalt, and metal rubble along the existing trail, grading of trail to provide positive drainage, placement of permeable trail surface to meet accessibility guidelines along Albany Neck; and earthwork to grade an ADA compliant access to the sandy beach. Removal of nonnative invasive species adjacent to trail, planting new native grasses and shrubs, and installation of post and cable fence to limit access to restored planting areas and steep shoreline slopes.
The Albany Beach restoration and dune enhancement will included removing treated wood, inorganic debris and invasive plants at beach area, demolition of a 2.8-acre paved parking area, sand placement to help support a broad low-profile beach, and support existing and expanded dune features and adapt to anticipated conditions under sea level rise. Approximately 2,000 cubic yards of carefully selected clean sand would be placed on the beach above the line of highest tide, and an additional 3,000 cubic yards placed to enhance and expand the dunes within the existing parking lot. The dunes would be stabilized using native dune vegetation. The project expands existing seasonally inundated wetlands and plants them with native vegetation and removes invasive plants and inorganic debris from wetlands. Stormwater management activities comprises earthwork to create bioswales and ponding areas to manage and treat on-site runoff from impervious surfaces. A major portion of this would be routed through the enhanced seasonal wetlands. Parking and Water Trail access includes facilities for non-motorized watercraft, 20-stall parking lot to provide ADA access, and non-motorized watercraft access and staging, dual vault-type restroom, bicycle racks, picnic benches, park signage, and interpretive exhibits and the reconstruction of existing trail at Albany Peninsula as ADA accessible trail (San Francisco Bay Trail Spur).
Eastshore State Park General Plan, http://www.parks.ca.gov/pages/21299/files/eastshorestatepark-generalplan.pdf
East Bay Regional Park District Master Plan, http://www.ebparks.org/Assets/files/RPM_Plan97.pdf
City of Albany General Plan, http://www.albanyca.org/index.aspx?page=439
San Francisco Bay Subtidal Habitat Goals Report
San Francisco Bay Area Water Trail Plan, http://www.bcdc.ca.gov/pdf/planning/WT_Plan_20070907.pdf
Coastal Conservancy San Francisco Bay Plan, http://scc.ca.gov/overview-the-san-francisco-bay-area/sf-bay-area-conservancy-goals/
San Francisco Bay Trail Plan, http://baytrail.abag.ca.gov/maps.html
Baylands Ecosystem Habitat Goals Report Recommendations, http://www.sfei.org/sites/default/files/sfbaygoals031799.pdf
San Francisco Estuary Comprehensive Conservation and Management Plan
California State Coastal Conservancy Strategic Plan 2007, http://scc.ca.gov/strategic-plan-2007/#san_francisco_bay_area_conservancy
Albany Beach Restoration and Public Access Project Draft Environmental Impact Report and Project Information,
Bay Conservation and Development Commission Bay Plan,
The Neck is an armored and reflective (wave energy) feature which is actively eroding to varying degrees based on location and orientation as well as topographic and material conditions. An ad hoc mix of materials consisting of concrete, construction debris and rock armor the shoreline along the Neck. High wave runup and overtopping events induce erosion within the bank which damages the integrity of the nonengineered structure and threatens the upper sections of the slope including existing pathways. Specifically, the toe is eroding due to the reflection of incident wave energy. The reflected wave energy is focused onto the corner at the Beach. Portions of the existing trail and areas under consideration for future public access are impacted by the runup and overtopping events.
The current configuration and conditions of the shoreline along the southern edge of the Neck will not support proposed habitat enhancement and public access improvements over time. Erosion along the Neck shoreline will increase as sea level rises, which will allow larger waves to impact and degrade the Neck shoreline. Although the structure is fixed in place, the toe and crest of the Neck will experience greater rates and frequency of erosion by wave runup and overtopping. The trail behind the crest will also be susceptible to damage by wave overtopping.
The steep slopes located on the southern shoreline of the Neck are subject to erosion from both storm water runoff across the slope face and waves along the toe of slope. The surface of the Neck and Plateau is also subject to erosion from storm water runoff. Concrete and other construction debris can exacerbate erosion by concentrating and focusing flows onto less resistant materials leading to piping of soils through the fill matrix.
Relative sea level rise projections specific to the Albany shoreline should account for issues such as land subsidence rates as well as the range of uncertainty in selected sea level rise projections. The geologically young Bay Muds and fill materials on the Albany Peninsula are relatively ‘uncompacted’ and unsettled, which may lead to consolidation and settlement or subsidence over time on the order of 1.5 to 5 feet. Settlement at the Plateau, Neck and Bulb is expected to occur based upon two separate mechanisms: compression of debris fill and consolidation of Bay Mud. The compression of the fill is expected to occur due to raveling (movement of fine particles into voids), decomposition, chemical reactions, and compaction and consolidation due to self-weight of the fill. The consolidation of underlying Bay Mud is expected to occur due to the weight of the overlying fill. Settlement would most likely manifest itself as undulations on the ground surface.
It is estimated that the Plateau area will settle between 2 to 2.75 feet over the period from 1989 to 2039. Additional settlement could occur in the Plateau area due to new loads (additional fill or building loads) transferred to the underlying Bay Mud layer. In addition, subsidence will influence erosion risk and the suitability of soil types for specific restoration and improvement measures. Surface erosion is expected to be an ongoing geotechnical issue on the Bulb, Neck and Plateau.
The primary threats to sensitive habitats in the study area are disturbance from public access (e.g., people and dogs) and sea level rise. Under existing conditions, the shoreline, beach and dunes have little or no room to adapt (move landward) in response to sea level rise. Protection of sensitive habitats within the Albany Beach study area will require protection measures that can be implemented immediately (e.g., fencing, signage) in combination with long-term approaches for managing these habitats over time with respect to sea level rise conditions (e.g., expansion, stabilization). Opportunities for preservation and protection of many of the sensitive habitats at Albany Beach are directly linked to suggested actions for shoreline protection and beach, dune and wetland expansion.
i. Water Supply (conservation, recycled water, groundwater recharge, surface storage, etc.)
ii. Water Quality
A goal of the proposed project design is to comply with Waste Discharge Requirement Order 98-072 issued by the Regional Board. To achieve compliance, implementation of the landfill shoreline stabilization and trail enhancement on Albany Neck will avoid landfill waste coming into contact with ponded water from any source; deposition of further waste deposited or stored at the site; or leachate from landfill waste and ponded water containing leachate or in contact with solid wastes from the landfill being discharged to waters of the State or United States.
The proposed project places a high priority on maintaining the landfill cap and avoiding water quality impacts to San Francisco Bay. Without comprehensive shoreline stabilization, future shoreline failure could cause erosion of landfill material into San Francisco Bay and violate the waste discharge requirements of Regional Water Quality Control Board Order.
Partial or patchy repair of eroded areas would contribute to shoreline weakness where repaired areas transition to non-engineered fill. These transitional points of contact over time will likely fail, causing erosion to spread to other areas. Failed areas would require continual maintenance and shoreline stabilization. Within areas of shoreline fill that were not properly engineered (i.e., existing condition) anticipated sea level rise will cause new areas of erosion and shoreline failure. A one-time comprehensive repair will be expensive but in the long term is more cost effective because patch repairs and substantial long-term maintenance burdens will be avoided.
Improve site drainage and water quality: direct surface runoff generated on the site through a system of bioswales or vegetated channels integrated with the existing back dune wetlands. Expansion of the wetland beyond the existing property boundary is an opportunity to increase storm water storage and passive treatment capacity. Stabilize eroding shoreline: stabilization of eroding shorelines is an opportunity to limit sedimentation and degradation of sensitive habitats. Improve stormwater drainage and trail surface: regrade the trail on the southern slope of the Neck to improve drainage and sediment control, direct surface runoff generated on the trail system to bioswales or vegetated channels for improved percolation and on-site treatment.
iii. Flood and Stormwater Management
Flood and stormwater management is about at the seaward edge of the trail, or the top of the armor. The roughness of the existing armor and rubble limits the height that the runup could potentially reach, but the trail is impacted and likely contributes to winnowing and erosion along the trail. Along the Beach significant flooding is expected. Although the runup is lower at the Beach because the slope is flatter, low areas and pathways through the dunes could cause significant flooding in and behind the dunes. Along the south shoreline the ground elevation is significantly lower than the runup elevation, and waves are expected to reach approximately 50 feet inland.
The estimates for total water level (TWL) will guide planning, evaluation and design of restoration and public access improvements for Albany Beach. Appropriate consideration of the future TWL conditions and influence on the site will also provide a framework for adaptive management and maintenance of the site.
iv. Resource Stewardship (watershed management, habitat protection and restoration, recreation, open space, etc.)
The project will protect the dune habitat at the Albany Beach by introducing fencing. Dune vegetation will be restored by removing noxious weeds (e.g., iceplant and Kikuyu grass) and planting locally native species that are adapted to this habitat, and explore the feasibility of re-introducing rare or endangered species that are native to the Bay Area, such as California seablite, San Francisco spineflower, and robust spineflower, to the dune area. The project will expand the dune areas behind the beach and protect and enhance eelgrass beds that exist off Albany Beach. It will Enhance beach/Bay access and create Bay Water Trail access for non-motorized watercraft by creating a vehicle drop-off and parking at the south end of the beach. Installation of park furnishings such as restrooms, benches and interpretive signage will significantly enhance the recreational experience of park visitors. An improved segment of the San Francisco Bay Trail adjacent the beach area will close a key gap in the San Francisco Bay Trail.
Establish a protective barrier separating landfill debris from high tide wave action, eliminate existing erosion and increased intertidal rockweed substrate and upland habitat protection on 1,700 linear feet of shoreline. Results will be documented by measuring linear feet of shoreline repaired and landfill protective barrier installed, and square feet of enhanced rock weed substrate created.
lncreased intertidal alga and non-invasive vegetative cover. The presence/absence of intertidal alga on newly created rocky shoreline substrate and upland transition vegetation will be documented.
lncreased data on intertidal and upland habitat restoration techniques for use at other shoreline project locations
lncreased application of "living shoreline" concepts for intertidal and subtidal rock habitats .
lncreased stewardship of estuarine ecosystems.