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SR-07-28-2015-3MCity Council Report taa ®aa n`ou;ca` City Council Regular Meeting: July 28, 2015 Agenda Item: 3 °M To: Mayor and City Council From: Martin Pastucha, Director, Public Works, Civil Engineering Subject: Award Professional Services Agreement for the Parking Structure Condition Assessment, Testing, Analysis and Repair Services for Parking Structures 2, 4, 5, 9 and 10. Recommended Action Staff recommends that the City Council: 1. Award RFP# SP2373 to Walter P. Moore and Associates, Inc., a California - based company, to conduct engineering assessment, testing, analysis and repair plan for Parking Structures 2, 4, 5, 9 and 10. 2. Authorize the City Manager to negotiate and execute a professional services agreement with Walter P. Moore and Associates, Inc., in an amount not to exceed $156,000 (includes a 15% contingency). 3. Authorize the Director of Public Works to issue any necessary changes to complete additional work within contract authority. Executive Summary The City's parking structures are a vital asset to the City, and their continued operation and functionality are an essential service of the City. In 2009, severe concrete spalling occurred at one downtown parking structure prompting the City to repair the spalling and inspect all City -owned parking structures. Based on preliminary investigation the City has identified Parking Structures 2, 4, 5, 9 and 10 as candidates for assessment and analysis. The primary structural elements that would be assessed and analyzed are the structural slabs, and vertical walls situated below grade that have shown signs of waterproofing issues. Staff recommends Walter P. Moore and Associates, Inc., to provide engineering assessment, testing, analysis and a repair plan for Parking Structures 2, 4, 5, 9 and 10 in an amount not to exceed $156,000. 1 of 5 Background The City of Santa Monica currently owns 11 parking structures, and maintains nine of them. Parking Structures 1, 2, 3, 4, 5, 6, 9, 10 and the Civic Center structure are maintained by the City while parking structures 7 and 8 are maintained by the Macerich Company. Alternative uses are being considered for Parking Structures 1 and 3, while Parking Structure 6 and the Civic Center structure are new structures. Parking Structures 2, 4 and 5 are nearly 50 years old and have shown signs of structural slab wear and distress due to long term usage and exposure to the elements, while Parking Structures 9 (built in 2001) and 10 (built in the 1980s) have also experienced varying degrees of structural slab distress despite being of newer construction. Discussion The original parking structures 2, 4 and 5 were constructed in the 1960s. Parking Structures 4 and 5 were originally built as five story structures with the upper four -story additions completed later in the 1970s and 1980s. Parking Structures 2, 4 and 5 were seismically upgraded in 2010, 2009, and 2005, respectively, as these structures experienced some degree of damage after the 1994 Northridge earthquake. Parking Structure 9 (built in 2001) and Parking Structure 10 (built in the 1980s) were built as three and two level structures, respectively, with housing constructed on top of each. In 2009, severe concrete spalling occurred at one of the downtown parking structures prompting the City to inspect all City -owned parking structures. Multiple spalling locations were identified and subsequently repaired (Figure 1 shows typical spall). 2of5 Figure 1. Typical spall (Parking Structure 5) Additionally, as part of the investigation, many slabs depicted various types of cracking which over time, may result in moisture intrusion and cause long term corrosion in the structural slabs. Future maintenance treatments of the slabs with concrete penetrating sealants, coatings or other defined measures would reduce chloride attack on the reinforcement, and consequently, reduce life -cycle structural damage and high replacement costs. In addition, the City has identified signs of water intrusion on the vertical walls of Parking Structure 9. Intrusion appears to come from pipe sleeves in the walls, exhaust air shaft, and cracks in the basement walls. Even though there is no sign of structural instability in any of the City's parking structures, the City considers it important to take a proactive approach in identifying and addressing issues as they arise as opposed to a reactive approach. Parking Structures 2, 4, 5, 9 and 10 would be thoroughly assessed, and a short and long term maintenance and repair plan for these structures would be developed. The maintenance and repair plan would include estimates for work and recommended schedule of repair based on the analysis. The repair schedule would be segmented as follows: short term (1 -3 years), mid -term (4 -7 years) and long term (7 -10 years). 3of5 Consultant Selection On April 8, 2015, the City published a Request for Proposal (RFP) #SP2373 for Parking Structure Condition Assessment, Testing, Analysis and Repair Plan Services for Parking Structures 2, 4, 5, 9 and 10 on the City's online bidding site and posted in the Santa Monica Daily Press on May 5, 2015 and May 7, 2015 in accordance with City Charter and Municipal Code provisions. The City received eight proposals on May 18, 2015. A selection committee consisting of staff from the Civil Engineering Division and Building and Safety Division reviewed, evaluated, and ranked the proposals. The selection process followed the consultant selection guidelines set forth by SMMC 2.24.073. The selection criteria included technical competence, past performance record, financial stability, quality of work, staffing capability to meet project timeliness, quality control, cost of services, cost control, and reporting. Walter P. Moore and Associates, Inc. ranked highest among the eight firms. Walter P. Moore and Associates, Inc. demonstrated extensive knowledge and experience on numerous projects similar in nature. Relevant projects recently completed by Walter P. Moore and Associates, Inc. include: Sunset Boulevard Parking Structure Repair project in Los Angeles, CA, Helix -on -Main Parking Structure Renovation project in Lexington, KY, and Corcoran Center Garage Repair project in Durham, NC. During the selection process, Walter P. Moore and Associates, Inc. demonstrated that it has the most qualified team for the project in accordance with the consultant selection guidelines set forth by the Santa Monica Municipal Code. Additionally, Walter P. Moore's price is competitive with the other proposals submitted. Staff recommends Walter P. Moore and Associates, Inc. to evaluate the present condition of the structural slabs and vertical walls below grade of Parking Structures 2, 4, 5, 9 and 10, and to recommend preventive maintenance strategies in the short and long term in an amount not to exceed $156,000. Schedule and Parking Impacts 4of5 Project is scheduled to begin in early fall 2015 and it would take approximately two weeks to assess and evaluate each parking structure. Impacts to normal parking operations are not anticipated at this time. Staff will coordinate all site visits with Parking Operations staff and will provide DTSM Inc. with a project schedule. Financial Impacts & Budget Actions The agreement to be awarded to Walter P. Moore and Associates, Inc. is for an amount not to exceed $156,000. Funds are available in the FY 2015 -16 Capital Improvement Program budget at account C019053.589000. Prepared By: Joshua Carvalho, Civil Engineer Approved Forwarded to Council U-' &L Martin Pastucha, Director 7116/2015 Elaine M Polachek, Asst, City Ma7i9 @i2015 5of5 Reference: Agreement No. 10148 (CCS)