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Home My WebLink AboutChange Order No 1 - WWTP Compressor Building Masonry Impr. Proj No. 121-046 - Slatile Roofing ELIZABETH A. MARADIK JOSEPH R. MOLNAR GARY A. GILOT MURRAY L. MILLER BRIANA N. MICOU 1316 COUNTY-CITY BUILDING 227 W. JEFFERSON BOULEVARD SOUTH BEND, INDIANA 46601-1830 PHONE 574/ 235-9251 FAX 574/ 235-9171 CITY OF SOUTH BEND JAMES MUELLER, MAYOR BOARD OF PUBLIC WORKS July 23, 2024 Mr. Gerald Longerot Slatile Roofing & Sheet Metal Co., Inc. 1703 S. Ironwood Dr. South Bend, IN 46613 gerald.longerot@slatile.com; debra.carothers@slatile.com RE: Change Order No. 1 (Final) – Wastewater Treatment Plant Compressor Building Masonry Improvements – Project No. 121-046 Dear Mr. Longerot: At its July 23, 2024 meeting, the Board of Public Works approved the above referenced Change Order be increased by $95,170, bringing the revised contract amount to $550,770 with a new completion date of June 30, 2024. Enclosed is a copy of the Change Order for your records. If you have any further questions, please call this office at (574) 235-9251. Sincerely, /s/ Theresa Heffner Theresa Heffner, Clerk Enclosures TH/lh INTER-OFFICE MEMORANDUM DEPARTMENT OF PUBLIC WORKS DIVISION OF ENVIRONMENTAL SERVICES TO: Members of the Board of Public Works Michael Schmidt, Assistant City Attorney Public Works Theresa Heffner, Clerk of the Board of Public Works FROM: Jacob M. Klosinski, P.E., Assistant City Engineer SUBJECT: Agenda Request – Change Order No. 1 121-046 WWTP Compressor Building Masonry Improvements (PROJ00000289 / PR-00018587 / PO-0020775) DATE: July 19, 2024 (Updated, Explanation of Change Orders above 20% limit) The Division of Engineering and Division of Wastewater request the Board of Public Works approve a change order for Project No. 121-046 WWTP Compressor Building Masonry Improvements for additional work required during construction to address unforeseen conditions and conditions that could not be identified during design. These conditions included clogged bathroom drain piping, replacement of steel lintels that were deteriorated due to rust jacking and delamination, fabrication of a steel plate jamb due to open masonry at a door frame to accommodate installation, tuckpointing two glass block window sections that had excessively deteriorated joints, and the replacement of additional brick blocks that were cracked or split that were beyond the original scope of the project. Change Order No. 1 consists of the following additions: PCO#1: Plumbing / Drain Modifications $13,510.00 PCO#2: Lintel Replacement (unit price item) $ 3,800.00 PCO#3: Glass Block Seal and Tuckpoint $ 5,960.00 PCO#4: 2,300 Additional Brick Replacement (unit price item) $80,500.00 PCO#5: North Building Steel Plate Frame for Door $ 1,400.00 TOTAL Change Order No. 1 $105,170.00 Use of $10,000 Owner directed allowance from Base Bid ($10,000.00) TOTAL Change in Contract Price $ 95,170.00 Original Contract Price: $455,600.00 Change Order No. 1: $ 95,170.00 net increase New Contract Price with Change Order No. 1: $550,770.00 In addition, the contract completion date is adjusted to June 30, 2024, due to door and door hardware manufacturer and supplier delays. All work for the project is complete. Explanation of Exceedance of Change Orders above 20%: The subject change orders exceeded the 20% change order threshold by $4,050.00 (approximately 0.9%). All change orders required for this project were necessary to complete the project scope of work to secure the building envelope and address unforeseen conditions that were encountered during the construction phase that could not have been reasonably foreseen during the design phase of the project. PCO#1: Plumbing / Drain Modifications During construction, the contractor encountered plugged drainpipes that were deteriorated with interior section loss and leaking and corroded pipe joints that were only visible after the removal of toilets in the process of installing new toilets. Upon review of the project engineer and architect, it was determined that the drain issues needed to be addressed immediately to avoid further deterioration or leaking of municipal sewage into the basement of the Compressor Building. PCO#2: Lintel Replacement The condition of steel lintels (steel angle / steel beam above windows and doorways) are often covered by masonry block infill and or limestone and the level of rusting jacking and corrosion due to water entering behind the block masonry is not always visible to the architect or engineer during visual inspection. During construction, limestone lintels were removed, and one lintel was replaced. Unit pricing was provided with Bid Pricing so that there was a defined cost for each lintel replacement. Lintels support masonry above windows and doors, and lintel replacement was necessary to maintain adequate load transfer to the block and foundation below. In the lintel replacement had been neglected and left in place, mortar joints would have continued to crack around the window openings and further corrosion would result in rust jacking or “lifting” of the block around the opening. PCO#3 Glass Block Seal and Tuckpointing During a heavy rain event, water was observed seeping through the glass blocks at one of the Mezzanine Windows and seeping out the brick at the bottom of the glass block openings. After engineer and architect visual inspection of the second-floor glass block window, it was determined that the mortar joints between the glass blocks were heavily deteriorated and, in some instances, had completed eroded away with non-bonded, open joints and fractures. To avoid further water penetration or damage, the glass block joints needed to be tuckpointed with a softer, more flexible silicone mortar joint rather than a cementitious mortar joint. This was necessary to help seal the building envelope of the Mezzanine / Second Floor from water infiltration. PCO#4 2,300 Additional Brick Replacement At the time of scoping, the amount of brick replacement in the base bid was 1,000 units. During construction, additional bricks were determined by the project engineer and architect to be cracked or broken and required replacement. In some cases, sections of brick had to be removed and rebuilt resulting in an additional 2,300 bricks that were replaced during the project. The square footage of walls that were impacted by microcracking and broken bricks were much higher than originally expected. With the contractor mobilized and scaffolding in place, neglecting the broken brick replacement work would have resulted in additional costs. With unit pricing available, project engineer and architect determined that it was in the best interest of the City to address the brick replacement work through the Unit Pricing provided for the project. It is worth noting that unit pricing received for additional brick replacement work was the same between the contractors that provided bids for the project. PCO#5: North Building Steel Plate Frame for Door During the removal of an older steel double-leaf door for the Storage Room Addition at the Compressor Building, the brick was uncovered to be hollow beyond the door jamb. As a result, the jamb fasteners for the new door did not have a solid block for the jamb fasteners to anchor the door jamb frame. The project engineer and architect determined that a fabricated steel jamb plate would be the least expensive alternative to provide a solid connection point for the door jamb frame. The result of the combined change orders exceeded the 20% change order threshold by $4,050.00. Engineering determined that this overage was a reasonable amount given the scope of work required to secure the building envelope and address unforeseen conditions. Had Engineering opted to re-bid or re-quote this work, the additional staff hours, design contract fees, time lost, and construction cost to re-mobilize a contractor on-site to complete the work would have exceeded the additional costs required to complete the change order work under this contract. Funding for this project was provided through Sewage Works Capital – Wastewater Capital, Account 642-06-605-514-442005. For questions regarding the subject Agenda Request, contact Jacob M. Klosinski (Ext. 9496) at the Division of Engineering. Jacob M. Klosinski 07-12-2024 July 23, 2024 BOARD OF PUBLIC WORKS AGENDA ITEM REVIEW REQUEST FORM Date: 07-15-2024 Name: Jacob M. Klosinski Department of Public Works – Engineering Division BPW Date: 07-23-2024 Phone Extension: 9496 Required Prior to Submittal to Board BPW Attorney X Attorney Name Michael Schmidt Dept. Attorney Attorney Name Michael Schmidt Purchasing Mickey Lovy / Ron O'Connor Check the Appropriate Item Type –Required for All Submissions Professional Services Agreement Contract Proposal Open Market Contract Amendment/Addendum Special Purchase, QPA Bid Opening Bid Award Req. to Advertise Title Sheet Quote Opening Quote Award Reject Bids/Quotes Proposal Opening C/O & PCA No. PCA Chg. Order, No. 001 Traffic Control Resolution Other: Ease./Encroach Required Information Company or Vendor Name Slatile Roofing and Sheet Metal Co., Inc. (V-00001513) )New Vendor Yes If Yes, Approved by Purchasing No MBE/WBE Contractor MBE WBE Completed E-Verify Form Attached Yes No Project Name WWTP Compressor Building Masonry Improvements Project Number 121-046 / PROJ00000289 / PR-00018587 / PO-0020775 Funding Source Sewage Works – Wastewater Capital Account No. 642-06-605-514-442005 Sewage Works Capital Amount See below Terms of Contract Base Bid + Unit Prices Special Contract Provisions Purpose/Description Engineering recommends the Board of Public Works approve Change Order No. 1. Work included plumbing drain improvements, lintels, glass block tuck pointing, masonry brick replacements, and door jamb plate fabrication due to unforeseen conditions and engineer’s assessment of necessary repairs. This request includes the use of the $10,000 owner directed allowance and approval of the balance of funds for the change order. For Change Orders Only Amount of Increase Decrease $ 95,170.00 ($ ) Previous Amount $ 0.00 Current Percent of Change: Increase Decrease 20.9% (%) New Amount $ 550,770.00 Total Percent of Change: Increase Decrease 20.9% (%) Time Extension Amount: Date adjusted to 06-30-2024 (Manufacturer delay: doors and hardware) New Completion Date: 06-30-2024