1815 13TH ST SEPA 016 - 013 - PRMC NEW CLINIC BUILDING Traffic Report 2025-04-22

Transportation Impact Analysis Providence Regional Medical Center New Medical Clinic Building and Parking Lot Reconfiguration April 2016 Project Description The proposed project is located at the Colby Campus of the Providence Regional Medical Center at 1815 13th Street in Everett, Washington. Figure 1 illustrates the site vicinity. The project site is north of 13th Street between an existing alley and the Providence 1717 Building. The site is currently occupied by the Central Utility Plant(CUP) and a surface parking lot with 316 parking spaces, and an undeveloped portion on the northern edge of the site. Figure 2 shows the existing site. The CUP would remain on-site with the proposed project. The proposed project consistent of two independent components that will be permitted separately on what is called the ECC Property. SEPA is being completed for the ECC Property as a whole consisting of two projects: • New Medical Clinic Building: The undeveloped portion of the site would be developed with a 37,000 square-foot clinic and 148 new parking spaces. The new parking area for the proposed clinic would be separate from the existing general hospital parking. • Parking Lot Reconfiguration: The existing parking lot with 316 parking spaces would be reconfigured to increase the parking supply by 35 parking spaces for a total of 351 parking spaces. Site access to both the clinic and the parking lot would be provided via the existing driveway along 13th Street. Figure 3 shows a preliminary site plan. Study Area and Approach The study area and analysis approach are consistent with the City of Everett Municipal Code Chapter 18.40 Transportation Mitigation and Ordinance 3090-08.A 2022 horizon year is analyzed consistent with the requirement that the study horizon year be no earlier than the final year of the City's adopted capital improvement plan (or a six-year horizon year). Study intersections are identified as off-site locations where the project would have an impact of 50 or more new peak hour trips. Based on this criteria, the study intersections include (see also Figure 1): 1. 13th Street/Broadway 2. 14th Street/Broadway 3. 16th Street/Broadway 4. 19th Street/Broadway The existing site access driveway is analyzed as well as an alternatives evaluation of access via 12th Street. This analysis focuses on the weekday PM peak period (4:00 to 6:00 p.m.). This period represents the highest cumulative total traffic for the adjacent street system providing a conservative timeframe for level of service (LOS) analysis. The proposed project impacts are identified by comparing the future without-and with-project conditions. 2