Landscape Architect & Specifier News

JAN 2018

LASN is a photographically oriented, professional journal featuring topics of concern and state-of-the-art projects designed or influenced by registered Landscape Architects.

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Tom Hesseldenz and Associates (THA), a collaborative ecological landscape architectural firm based in nearby Mount Shasta, provided initial planning input, then proceeded to help the community expand that vision into a comprehensive integrated network of greenway elements contained in the recently-adopted Yreka Creek Greenway master plan. The master plan contains a variety of design solutions that reduce flood hazards, improve water quality, restore fish and wildlife habitat, provide creekside trails with linkages through town and yield various economic benefits to the local community. An innovative nonstructural method of reducing flood hazards that had been developed by THA on previous Yreka projects led to the city of Yreka obtaining a $5 million grant from the California's Department of Water Resources to prepare the master plan, as well as acquire key lands, complete environmental compliance for the city-wide network, and implement a portion of greenway build-out. As lead consultant on the master plan, THA worked closely with the city of Yreka and its main greenway partner, the Siskiyou Gardens Parks and Greenway Association. The other members of the collaborative team assembled by THA were: • GeoTerra (city-wide aerial photogrammetry and planimetrics) • Foresight Surveying, Inc. (air photo target surveying/mapping) • Natural Resource Geospatial (GIS services, including a Google Earth KMZ rendition of the master plan) Middle: Yreka Creek has an incised stream channel, rock and concrete armoring along its banks and a culvert draining directly into the creek. The channel has lowered to the point that it can undermine structures, cause downstream sedimentation and severe bank erosion and widening. Grant funding has been obtained to create an accessible floodplain, relocate the culvert outfall to the backside of the new floodplain and construct a new trail. Below: Yreka was founded during the California Gold Rush in 1851. This statue is by Yreka sculptor Ralph Starritt and was installed in 1976 by the Yreka Jaycees. PHOTO: PUBLIC DOMAIN, WIKIMEDIA.ORG 52 Landscape Architect and Specifier News

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