Travis AFB Sustainability Study Report Final Background Report | Page 150
Road Growth Area to incorporate detention basins, agricultural buffer areas,
and public open spaces into the physical amenities designed into the
neighborhoods. Design Standard 4‐12 of the City of Vacaville Standard
Specifications and Standard Drawings requires that new development
mitigate the increase of the 10‐ and 100‐year peak runoff from a project site
over the predevelopment conditions. The developer must either provide
onsite storage or pay into the City Development Impact Fee for Storm Drain
Detention. Development impact fees, established by Chapter 11.01 in the
Vacaville Municipal Code, fund the necessary storm drainage improvements
required for new development in Vacaville.
Future drainage areas are anticipated to be constructed along with eastern
edges of the city. The most recent drainage basin was completed north of
Fry Road, near Leisure Town Road. Figure 5.4‐4 shows Travis AFB flight
tracks and City of Vacaville drainage basins within the BASH relevancy area.
These future drainage basins have the potential to attract birds, which could
increase BASH in the area. Travis AFB operations utilize the area north of
the Base, to the east of Vacaville, for closed pattern flight tracks. Additional
bird attractants could create increased BASH hazards for these types of
operations.
Travis AFB Land Use Compatibility Plan
To help prevent the future creation of bird attractant land uses, the
Travis AFB LUCP established a Bird Strike Hazard Zone, which is defined by a
radius 14,500 feet from the runway centerlines. The plan also establishes an
Outer Perimeter, located five miles from the farthest edge of the Base’s
airfield operations area, which the FAA recommends for any hazardous
wildlife attractant if the attractant could cause hazardous wildlife movement
into or across the approach or departure airspace.
Drainage area in Vacaville (Source: http://www.westyost.com/)
Page 5‐30
Within the Bird Strike Hazard Zone, reviewing agencies are required to
prepare a Wildlife Hazard Assessment (WHA) for projects that have the
potential to attract wildlife that could cause bird strikes. The WHA must
demonstrate wildlife movement that may pose hazards to aircraft in flight
will be minimized. Based on the findings of the WHA, all reasonable
mitigation measures must be incorporated into the planned land use. For
areas outside of the Bird Strike Hazard Zone but within the Outer Perimeter,
any new or expanded land use that has the potential to attract the
movement of wildlife that could cause bird strikes are required to prepare a
WHA.
Compatibility Assessment