20B - AA - STREETCAR DESIGN - Laserfiche WebLink

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Our approach will be to continue our effort from the point where we completed review of the 30% design. We anticipate providing as - needed support in technical areas Identified by the City, and formal reviews of the 80%, 90% and 100% design. Typical areas or our support include: • Civil • Drainage • Traffic • Electrical • Structural • Geotechnical • Surveying • Landscape Architect We will use our knowledge on other streetcar projects to advise the City on key elements of the project that may impact City facilities. Some of the specific technical topics we envision include; Drainage — The streetcar guideway alignment will likely have challenges related to flooded width of the roadway. In addition, the City's storm drain facilities generally lack needed capacity, and in many cases, are near the end of their useful life. Water Quality — This project will need to comply with permit specifications for North Orange County and meet the requirements of the Santa Ana Regional Water Quality Board (Order No. R8-2009-0030/NPDES No. CAS618030). This will require water quality treatment with City -approved devices. Utilities — The streetcar guideway will introduce conflicts with many crossing and parallel utilities. Treatment of these will need to consider age/condition of the utility, 19 maintenance accessibility and long-term plans. Traffic — The new streetcar will need to be coordinated with parallel traffic flow, and must consider cross traffic along busy arterials. In addition, there will be elements related to safe and efficient operation in specific areas that need to be addressed. This can be particularly challenging in the downtown area with events. Overhead Contact System (OCS) — The OCS will need to be designed to minimize impacts to trees, sidewalks, surface utilities, businesses, and residents. In addition, this system will need to consider ultimate improvements since modification is costly and Impacts streetcar operation. TPSS Sites — Size and configuration of the TPSS sites is a critical component as these have the potential to be unsightly and prevent future Improvements. Working closely with the designer to consider current and future community needs is critical. Geotechnical — Geotechnical considerations have the potential to reduce cost and Impacts; however, it is critical that these recommendations adequately support the long-term needs of the facility and adjacent roadway. Right -of -Way — Providing all of the needed property conveyances and Identifying challenges early is critical to the success of the project. This also includes evaluating prior rights to assure that all transactions consider proper agreements. 20B-23 Kimley>>>Norn