20A - AA FIRST ST BRIDGE REPLACEMENT PROJECT

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LSA ASSOCIATES, INC. INITIAL STUDYIMITIGATED NEGATIVE DECLARATION JULY 2010 FIRST STREET BRIDGE REPLACEMENT PROJECT CITY OF SANTA ANA lines owned by AT&T which are currently located along the north side of the First Street. After the completion of the improvements on the north side of the project limits the utility lines will be relocated to the proposed sidewalk. The construction activities will also impact water mains. One water main owned by the City is affixed to the deck on the south side of the bridge, on the outside of the exterior girder. After construction of the north side of the bridge, the existing water main will be relocated to the north side of the new bridge, affixed to the deck on the outside of the exterior girder. A 6-inch reclaimed water main and a 2-inch electrical conduit run parallel to the Santa Ana River, on the east side and crosses under the bridge. These facilities are utilized for the landscaping within the channel right-of-way and will require relocation as part of the bridge construction. The final relocation plans of these utility lines have not been determined yet, however, two relocation alternatives are taken into consideration: 1. Temporary relocation by affixing the main/conduit to the slope paving during the construction of the abutment, then permanently relocate the main/conduit to the abutment face, at the top of slope paving, once the bridge construction is completed. This will provide full access to the facilities. 2. Permanent relocation by installing the main/conduit in a steel casing behind the abutment, crossing First Street. This will limit the future accessibility to the facilities; however, the relocation could be done in single stage. The construction impacts will be temporary and after relocation of the utilities, there will be no additional impacts are expected. All utility lines relocation will be conducted wit the close coordination with involved agencies/owners, and therefore, less then significant impacts are expected and no mitigation is required. Below is a list of the utilities that could be affected and the parties that the City will coordinate with for access or relocation. Overhead Electrical (Southern California Edison) Overhead Telephone (AT&T) Gas (Southern California Gas) 84-inch RCP Sewer (Orange County Sanitation District) Fiber Optic (Multiple Owners) Storm Drain (private) Water (City) 6-inch Reclaimed Water (County of Orange) Fire protection? No impact. The surrounding area is served by the Station Number 8, located just west of the project site at 501 N. Newhope Street. No major changes other than bridge replacement and street widening are anticipated to occur to the current configuration of First Street . Therefore, there is no additional requirement or need for fire protection or emergency services or facilities in the project area. No impact is anticipated, and no mitigation is required. Police protection? 07/25/10 ,<PA\DMJ0701\MND\4.0 Environmental Analysis.doc,, 4-35 20A-86