Method: Developing A Design For Crissy Field
The Planning Process
The National Environmental Policy Act planning process used to develop the Crissy Field design plan included scoping sessions, formation of alternatives, public comment, and release of findings. During the scoping process, several critical issues were identified. Many people thought the entire property should be restored to tidal marsh. This was never a consideration for the National Park Service because restoration of the historic airfield was the only justification for removing several historic buildings on the site. Others thought that the land should be developed into a more conventional recreational park with ballfields. Historians wanted to return the entire property to an airfield and create an airfield museum. The sailboarding community did not want things to change, as Crissy Field was one of the three or four best sites for windsurfing in the bay. The off-leash dog-walking community also feared change.
Walkway view of Golden Gate Bridge
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Formation of alternatives took several years to complete because there were so many areas of potential controversy but, in the end, the plan was almost unanimously approved. The project director assembled an interdisciplinary planning team made up of designers, resource specialists, public affairs specialists, and others to develop a master plan for the entire site and schematic plans for portions of it. The project director also assembled a team of consultants to provide information and services that were beyond the capability or expertise of the planning team or the GGNPC. During the formal and informal public input process, the Golden Gate National Recreation Area Citizen Advisory Commission provided a forum for discussion.
Design Solutions
The planning team looked for "synchronicities"—places where natural and cultural values could go hand-in-hand. They also considered sustainable design issues and made sure they had the necessary technical information.
Historic Airfield
Because of its unique history, the airfield on its own could likely have qualified as a national historic landmark. It was a cultural resource that needed to be restored in conjunction with the recreation of a tidal marsh. The first problem was the removal and disposal of the earth that the Army had used to fill the marsh. The earth could not be dumped back into San Francisco Bay because of the negative effect on water quality. Instead, it was used to build up one edge of the airfield to improve drainage. Because the earth build-up was only done on the far end of the airfield away from buildings, an optical illusion of sorts was created, making the airfield appear flat when viewed from the buildings.
The remainder of the earth removed from the marsh was used to create earthworks. The planning team chose to stabilize these with native bunch grass rather than the nonnative, highly invasive Bermuda grass that the Army had originally planted. Native bunch grass was chosen because it requires less water and few pesticides, can be clipped back often without killing the plants, and is not invasive. The beach was planted with dune scrub vegetation and stone shingle was removed to improve both recreational and ecological values.
Ohlone Site
During the digging operation to create the marsh restoration, construction crews uncovered a prehistoric site at the point where the marsh enters the bay. It was a 500-year-old Ohlone shell midden, with stone tools for shellfish processing. Working with descendent's of the Ohlone, the National Park Service decided to preserve the midden, which required the removal of one acre of land from the wetland. This decision was not popular with the natural resources staff, but the National Historic Preservation Act did not leave any question about the need for protection once the cultural resource staff had consulted with the tribe. The National Park Service had already begun working with the tribe on the overall project, but dialogue over the prehistoric midden led to the signing of a memorandum of understanding that outlined how the tribe and park would work together. The Ohlone have asked the resource management staff to replant part of the marsh with some of the plant materials traditionally used in cultural activities, and will then be permitted to harvest these through a collection agreement.
Tidal Marsh
Reconstructed tidal marsh
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As one of the design solutions in the Crissy Field plan, culverts that formerly conducted water directly into San Francisco Bay, thereby reducing water quality, now channel water into the restored marsh, allowing it to act as a natural filter. This is more effective economically and ecologically, and integrates human and natural systems.
In gathering information from experts in various scientific disciplines, the planning team learned that the tidal marsh would need to be a minimum of 30 acres in order to be permanently viable. (A smaller marsh would be filled by sediment over time.) After negotiation, the final restored marsh is approximately 20 acres, and is already beginning to fill. However, planning is currently underway for the Doyle Drive area to the south of Crissy Field, and an expansion of the marsh here is being considered.
Achieving a Way Forward
Community volunteers plant native plants raised
in park nurseries as part of restoration efforts
at Crissy Field.
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Developing these solutions was not an easy process. The planning team went through many difficult public meetings and a lot of "horse trading" before agreement was reached on a final design. A great deal of time was spent trying to arrive at consensus in the conflict resolution phase, and the planning was carried out as an iterative process. The project director worked with each special interest group to find its bottom line: what was really important. He also met individually with key representatives of the different groups to identify their interests and then determine critical issues and areas of conflict between groups. As an example, the east beach was the best site for sailboarding but was also the preferred location to place the mouth of the recreated marsh. And placement of a parking lot culvert was in direct conflict with maximizing the size of the recreated marsh. The project director walked together through each area in question with members of all the relevant interest groups, asking them to agree to compromises in each other's presence. Design was also used to resolve many of the conflicts, and in the end the final plan worked well. The project director says that, although the plan looks simple now in its implementation, it was very complicated to develop. The placement of every fence and every culvert took a great deal of negotiation.
Management of Crissy Field continues to be tenuous and negotiations are ongoing. As part of the opening celebration for Crissy Field, a proposal was made to land a biplane. Because the plane would fly over the marsh, natural resource managers were concerned about habitat disturbance. An agreement was eventually reached by the chiefs of natural and cultural resources: when scheduling events, the two will work together to establish timing to avoid disturbance, and will also negotiate on the size of each event.
A Challenge of Urban Parks
One particular challenge faced by managers of federal lands within an urban setting is that many people do not understand the difference between a municipal park and a national park. If a citywide referendum can be used to make decisions regarding the former, then why not the latter? It was suggested that a referendum in the case of Crissy Field would have resulted in 100 acres of soccer fields and parking lot. When dealing with the public, managers need to let people know that their voice has been heard and what they have said will be taken into consideration, but in making decisions regarding national park lands, the majority does not necessarily rule.
Creating a Constituency Supportive of the Presidio
Park staff and volunteers monitoring vegetation.
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Working with resource professionals from the National Park Service, the Golden Gate National Parks Conservancy has developed a stewardship program to promote a sense of public ownership of the Presidio. The GGNPC looks beyond the neighborhoods adjacent to the park, and targets communities of varying ethnic origins and socioeconomic backgrounds that are infrequent park users or participants at park events and functions. The program has created site-specific stewardship projects for "Saturday work-teams." The work often consists of removing invasive exotic vegetation and then replanting a site with native species grown in park nurseries. GGNPC supplies special t-shirts or sweatshirt's specific to an individual site, which helps to promote unity among the stewards there.
National Park Service staff identified 74 native plant species to be replanted throughout the site. Americorps workers were hired to collect seeds and take cuttings, and 140,000 individual plants were grown in park nurseries, in large part under the supervision of volunteers. GGNPC reached out to schoolchildren from across the city, and paid for chartered buses to bring them to the park. GGNPC also involved the city's many private corporations, whose workers turned up for a day of physical labor. In the end, the GGNPC ran out of plants before it ran out of volunteers.
Although this approach was expensive, the director of the GGNPC believed it was important in order to foster a feeling of ownership for the Presidio and specifically for Crissy Field among both traditional and nontraditional park users, and to create a community place where all people could come together. Evidence of that support was demonstrated at the opening ceremony for Crissy Field, which was attended by 75,000-85,000 people, many of whom were members of families where English was not the first language. After the crowds left at the end of the day, event organizers were surprised but pleased to see that almost no litter was left behind. This, they believed, indicated a sense of pride as well as ownership of the park.
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