The work to be performed by the CONSULTANT consists of preparing complete engineering Plans, Specification and Estimate (PSE) for the design of a 4-way traffic signal at the intersection of 147th Street S.E. and 179th Avenue. S.E. to include minor roadway changes as necessary. The proposed improvements include: necessary surveying, widening of the northwest corner of the intersection to allow adequate turning radius for the large truck design vehicle, and design of ADA ramps. Comply with all applicable FHWA design forms to include those necessary for a successful Project Management Review (PMR) and all other work necessitated for FHWA compliance. The major features of the project are as follows: Conduct topographic survey of the site as necessary for a complete design. Design 4-way signal (three road segments and one driveway entrance). Stormwater design and mitigation in accordance with Ecology’s 2012 SWMMWW updated in 2014. Design of a dedicated left turn lane from 147th to 179th northbound. Determination of R/W - TCE needs and R/W acquisition areas. Coordination with City’s ROW agent to prepare exhibits and legal descriptions. Coordination with utilities and property owners. Prepare for and attend one public outreach event. Meeting requirements for the use of federal funds including cost tracking, reviews and project audits.
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