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Wanlass Park - San Pablo, CA

"The first park in Contra Costa County in 44 years."  This new City park was recently completed and includes an entrance bridge across Rheem Creek, trails and gardens, an Environmental Education Building, children's playground, parking lot, retaining walls, sound walls, storm drainage system, landscaping and irrigation, and park lighting.

A-N West prepared preliminary studies and the final plans, specifications, and estimate. Utility coordination was required for major underground utilities that needed to be identified, located and protected. Coordination/administration was provided for several subconsultants including architect, surveyor, geotechnical engineer, landscape architect, and electrical/lighting firms.

A-N West also provided support services during construction.

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Ohlone Greenway - Richmond, CA

A-N West prepared the civil engineering and bridge plans, specifications, and estimates. Bids for construction were accepted August 2016.

A-N West services included hydraulic analyses and design of the relocations and restoration of Baxter Creek using HEC-RAS for existing and proposed conditions. Developed channel reconfiguration recommendations for sizing low flow channel to convey the 2-year event while maintaining channel stability.

A-N West prepared a Bridge Type Selection report and final design for the bridge foundations.

Saratoga Creek Trail - San Josť, CA

A-N West was the lead consultant for final design and construction period services for 1.1 miles of paved and unpaved trail along Saratoga Creek between Bollinger Road and English Drive in southwestern San Josť.

Served as civil engineering subconsultant during design development. The project relocated a portion of the Saratoga Creek channel and converted it to an unlined trapezoidal channel.

A series of retaining walls were constructed along the top of bank due to restricted space. Walls included reinforced concrete facing supported by steel wide-flange sections encased in concrete in drilled holes. Trail construction considered an existing 60" water main. Design also accounted for trail use as a maintenance road for Santa Clara Valley Water District.

Hydraulic backwater analyses using HEC-RAS were performed to assess project impacts on Saratoga Creek.

The completed project included a 70-foot long pedestrian bridge, trail-side resting areas, mitigation planting, irrigation, and on-street bicycle lanes along Bollinger Road, Johnson Avenue, and Prospect Road.

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