[Ⅱ]Case Study from RESILIENT BY DESIGN BAY AREA CHALLENGE

ESTUARY COMMONS

The estuary community formed a network of public spaces, adapted to the ecosystem, and strengthened social and economic relations to achieve future community resistance.

In order to protect local communities and restore native habitat, All Bay Collective is reconsidering the coastline around San Leandro Bay to create estuary public land. Through the construction of ponds, terrain, and expanded streams, the communities of Deep East Oakland, Alameda, and San Leandro will not only be able to adapt to rising sea levels and groundwater flooding, but will also have a thriving network of green pathways for future generations Enjoy.

Our base extends from the historic center of San Leandro Bay to the current coastline of Oakland and Alameda about a mile inland. Since the 1870s, this area has undergone tremendous changes due to cutting and landfilling activities. At that time, a 30-year project was carried out in San Leandro Bay and Old Oakland Harbor. A tidal canal was dug between) to isolate Alameda from the mainland. In Oakland, more than four square miles of coastal wetlands are filled with urban gravel or dug sand. During this filling process, several new river channels were created (Lion Creek and Elmhurst Creek) or relocated (San Leandro Creek). The marsh stretches from the mouth of the San Leandro River to the San Leandro Bay and is an important habitat for two federally listed wetland species-the salt marsh harvest rat and the Ridgway rail rat. The area around San Leandro Bay is divided into judicial and infrastructure boundaries, but shares the risks of rising sea levels and flooding groundwater.

The concept of public land is derived from the rich political and urban history. It connects people and places through shared resource management to benefit everyone. The commons is the public process of management and citizen life, and the space that brings us together. ABC envisions the Estuary public land as a community network, sharing and managing urban landscape resources. The locals have referred to San Leandro Bay as “The Estuary” for many years. The Estuary publicly reaffirmed the identity of this community vision, and pointed out the shared place, process and way forward, which will bring generations to generations. Comes with flexible results.

ALL BAY COLLECTIVE proposes four interrelated methods:

1. Promote existing field operations to help create conditions for long-term community equity and recovery;

2. Renovate the estuary to resist floods, restore the ecosystem, create passages, and provide gathering space;

3. Stitch the community and shoreline together through new traffic and ecological corridors;

4. Through community-led planning, use public assets and private investment to achieve fair, environmentally just and resilient development, thereby achieving prosperity.

OUR HOME

The North Richmond sea level rise project “Our Home” originated from the community’s idea of ​​establishing health, wealth and home ownership for more than 5,000 North Richmond residents-turning the investment in adapting to sea level rise and aging infrastructure into all Human opportunity.

OUR-HOME’s sea-level rise response project is related to the health and financial well-being of residents who have traditionally been excluded from opportunities to improve their health and family wealth. The combination of small plot housing, community land trusts, social impact bonds and community infrastructure can reduce the cost of entering housing ownership. The green infrastructure proposes to “bring the swamp to the main street” through horizontal dikes, and plant 20,000 trees to filter air and water. These strategies can be implemented through existing local employment and career plans-benefiting the people of North Richmond .

The overall design method of “OUR-HOME” focuses on a regional issue: the use of infrastructure funds to bring health and wealth benefits to communities whose investment has been cut. In North Richmond, investments include replacement of water pumps and protection of sewage facilities, major arteries and drowning marshes, which provide important habitat and support the largest eel grass beds and oyster beds in the bay. Based on the visual planning of the North Richmond coastline, local experts in the community have formed a suite of four projects. Five seminars with the North Richmond Community Advisory Board and countless discussions with stakeholders have formed concept-level projects that contain proven strategies that can be The community has a profound collective impact. These projects-planting trees to purify air and water; Use a series of time-varying embankment types to protect Richmond Parkway, wastewater treatment facilities and communities; introduce swamps that coexist with industrial uses and allow the swamp to transition to highlands over time; complete a multi-purpose overpass, Providing access to the coastline, creating a green mitigation fund, and continuing to increase local employment opportunities, all of which will bring immediate and immediate benefits and long-term value to the community. As the foundation of the project, small batch housing can reduce the entry cost of home ownership. In Las Deltas, Grove, and Giaramita, larger-scale housing reconstruction can help stabilize housing ownership through community land trusts.

1. THRIVE

Home ownership and affordable living as a path for community wealth building .

2. FILTER

20000 Trees of Justice

The incidence of asthma among Richmond residents is 17%, while the statewide average is 7%. The simple act of planting a large number of trees can create a multifunctional air filter that filters particulates from heavy trucks on Richmond Park Road and emissions from surrounding industries. Landscape-based rainwater treatment, such as rainwater irrigation, can also slow down and pre-treat rainwater while reducing local flooding. An integrated approach is to use trees and green rainwater infrastructure as air and water filters, reduce pollutants, provide shade and temper the climate, and use different plant communities to provide habitat for wildlife.

3. FLOW AND GROW

March to ‘Main Street’

Adaptation is the ability of a place to adapt to changes and continue to thrive. In the North Richmond Coastline Vision Plan, horizontal dikes and tranquil marshes can protect the community, West County Wastewater Treatment Plant and Richmond Parkway, and coexist with warehouse facilities that provide local employment opportunities. Flood dikes and wetland protection strategies support a “transition zone” where sediments can slowly gather and rise to form valuable wetland habitats, which will continue to filter and support the largest eelgrass bed and oyster bed in the bay area And bird migration routes. The interaction between horizontal dikes, gentle swamps, and creek systems provides opportunities for the growth of swamps, while improving river banks and fish habitats in the floodplains. Nearby wastewater, rainwater pumping systems and composting infrastructure are all beneficial contributors to this mixed ecology. River embankment, provided by the flood control area near the basic protection, including the estimated sea level in 2100, can also provide a long-term choice, “grey-to-green” transition from industrial use of agriculture to marshland, exploring biological restoration and sediment capture in the future value Strategy.

4. RELATE

Wildcat Creek Trail, an Upland to Bayland Connector

The Wildcat Creek Trail has been well utilized and has become the focus of cleaning, restoration, and childhood memories of residents. A fish ladder along the creek is being improved, and the “complete street” designed for Rumrill Road will directly connect BART, a mile away, to the new ferry terminal that only takes 30 minutes to reach the city center. A pedestrian/bicycle flyover over Richmond Parkway will create a destination overlooking and connecting to the shore, weekend flea market, bay trail and water trail.