The Russian River Watershed Association (RRWA) is a coalition of
eleven cities, counties and special districts in the Russian
River Watershed that came together in 2004 to coordinate regional
programs for clean water, habitat restoration and watershed
enhancement.
West Yost is assisting RRWA in meeting the primary objectives of
their Prop 1 grant to develop a regional Stormwater Resource Plan
(SWRP) for the entire Russian River Watershed. The SWRP will
identify projects that maintain and restore pre-development
hydrology and improve water quality by limiting pollutants
carried in stormwater runoff from entering local waterways and
encourage the use of green infrastructure practices to manage
stormwater runoff.
Project includes:
Collaborating with the community to develop, implement, and
complete a watershed-wide SWRP including all mandated plan
elements and a prioritized list of implementation projects;
Utilizing implementation projects to demonstrate and educate
the local and regional community on the importance of stormwater
management and the benefits of LID practices; and
Reducing stormwater volume and pollutant loading in
stormwater runoff.
West Yost provides a complete range of stormwater engineering
services on projects ranging from drainage studies for small
individual sites through regional solutions for large watersheds.
Our stormwater planning and design engineers have a strong
history of delivering projects that demonstrate value through
innovative thinking, and significantly reduced capital costs of
solutions and alternatives. Our expertise includes technical
depth in storm drainage master planning, facility design;
preparation of environmental impact reports addressing storm
drainage, water quality, wetlands, water rights, and soil
erosion; and hydrologic and hydraulic drainage system modeling.
To see descriptions of Construction Management on similar
projects please Click Here
For information on our Funding and Grants Click Here
The Russian River Watershed Association (RRWA) is a coalition of
eleven cities, counties and special districts in the Russian
River Watershed that came together in 2004 to coordinate regional
programs for clean water, habitat restoration and watershed
enhancement.
West Yost routinely conducts accurate hydrologic/hydraulic
evaluations. This includes using dynamic 2-dimensional (2-D)
surface flow modeling to more accurately predict results and to
graphically demonstrate solutions. Recent projects include the
Alamo Creek 2-D Flood Study for the City of Vacaville, and 2-D
modeling for a 4,000 acre alluvial fan flooding analysis in the
Mojave Desert for the Ivanpah Solar Facility project.
West Yost provided planning, analysis, environmental review,
permitting, design, and construction management services for the
Dry Creek Wastewater Treatment Plant Pond Levee Relocation. This
project included the hydrologic and hydraulic evaluations of
setting the pond levees 100 feet back from the Dry Creek bank in
order to provide 100-year protection of the wastewater storage
ponds while enhancing the flow-carrying capacity of Dry Creek in
an environmentally sensitive manner.
The Russian River Watershed Association (RRWA) is a coalition of
eleven cities, counties and special districts in the Russian
River Watershed that came together in 2004 to coordinate regional
programs for clean water, habitat restoration and watershed
enhancement.
The goal of this study was to develop a document that could serve
as the basis for obtaining LEED credit for New Construction (NC)
and for Commercial Interiors (CI). Land use conditions were
evaluated for the years 2011 (existing conditions), 2015 (short
term future land use), and 2030 (and long term future land use).
The impervious coverage in the Central Campus was determined for
each time period, and the existing conditions impervious coverage
was field verified and revised.
West Yost prepared a 2-dimensional storm drainage model for a
proposed 400 MW solar power project covering 4,000 acres in
the Ivanpah Valley in the Mojave Desert in California. The
project is situated on an alluvial fan located at the base of the
Clark Mountain Range. Flood flows from the mountains are
initially confined in incised channels, but once arriving on the
alluvial fan, the flood flows are less confined and can take
random paths across the fan.
Using Flo-2D modeling software, West Yost developed a
2-dimensional hydraulic model to route Alamo Creek overflows
through a residential neighborhoods for several miles and back
into Alamo Creek. Staff also prepared a FEMA LOMR application for
a portion of the floodplain.
The goal of this study was to develop a document that could serve
as the basis for obtaining LEED credit for New Construction (NC)
and for Commercial Interiors (CI). Land use conditions were
evaluated for the years 2011 (existing conditions), 2015 (short
term future land use), and 2030 (and long term future land use).
The impervious coverage in the Central Campus was determined for
each time period, and the existing conditions impervious coverage
was field verified and revised.
Thorough assessment of pump station condition is essential to
understanding if a facility should be rehabilitated or
replaced. West Yost conducted condition assessments of the 22
storm drain pump stations and the 12 sanitary lift stations that
UC Davis owns and operates. This project required a phased
approach focusing first on the pump stations of highest concern,
to meet tight initial deadlines for funding.
West Yost under contract to an environmental services firm,
provided engineering design and construction period
services for converting 217 acres of rice farmland into a
wetlands and endangered giant garter snake habitat. The wetland
will rely on two water sources: agricultural delivery and an
onsite supplemental groundwater well.
West Yost staff members routinely provide stormwater engineering
services in support of transportation projects. These services
include: hydrologic and hydraulic analyses to define drainage and
stormwater quality treatment facilities; design of pump stations
to evacuate storm runoff; and hydraulic and scour potential for
bridges and overcrossings.
