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BACKGROUND The interchange improvements include widening and realigning the existing eastbound Foothill off-ramp. This realignment and widening requires filling a portion of the drainage channel along the off-ramp and construction of a retaining wall. Due to poor soils and high groundwater at this location the retaining wall foundation will be supported by underground piles that are approximately 55 feet in length. DISCUSSION The bottom of these piles will encroach approximately 16 feet in the adjacent right of way. These piles will be underground and will not have a permanent impact on the adjacent landscaping or right of way. An underground footing easement and temporary construction easement will be necessary to construct the retaining wall piles. Since the easement will eventually be located in Caltrans right of way we need to follow Caltrans requirements and processes. The process requires the preparation of a Hard Copy Map showing the existing right of way of the proposed easement and a plat and legal description for the easement. Once the map, plat, and legal description are approved by Caltrans, the City can have a certified right of way agent proceed with appraisal and acquisition of the easement. There are several existing underground utilities along or adjacent to Foothill Road within existing Caltrans right of way. These utilities have access points (manholes and pull boxes) within their right of way. Caltrans is requiring the City to prepare a Longitudinal Utility Encroachment Exception for the project. This document will request Caltrans approval for the existing utilities and access points to remain in their current location. Submitte 2 y: Fiscal Review: Approved by: 7_1 7. /112_____ ----C7frifiti 6.;tr-i/ Brian Dolan Emily Wagner Nelson Fialho Director of Director of Finance City Manager Community Development Attachments: 1. Second Amendment to Agreement 10-663C Page 2 of 2