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HomeMy WebLinkAbout13022 RESOLUTION NO. 13022 A RESOLUTION AWARDING A CONSTRUCTION CONTRACT IN THE AMOUNT OF $2,881,429 TO K.R. SWERDFEGER CONSTRUCTION, INC. AND SETTING FORTH $576,285 FOR CONTINGENCIES, FOR THE FY2014 SOUTH PRAIRIE AVENUE SEWER SEPARATION PROJECT AND AUTHORIZING THE PURCHASING AGENT TO EXECUTE THE SAME WHEREAS, competitive bids for the Project No. 14-014 (WL1401) #140122W FY2014 South Prairie Avenue Sewer Separation Project been received and examined; and WHEREAS, the proposal of K.R. Swerdfeger Construction, Inc. of Pueblo, Colorado was the lowest of those bids determined to be responsive; NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF PUEBLO, that: SECTION 1. This contract is for lining of the sanitary main and construction of storm main along South Prairie Avenue. Contract Agreement for FY2014 South Prairie Avenue Sewer Separation Project with K.R. Swerdfeger Construction, Inc., Project No. 14-014 (WL1401) #140122W is hereby awarded to said bidder in the amount of $2,881,429. SECTION 2. Funds for Project 14-014 (WL1401) #140122W shall be from the State Revolving Fund Loan. SECTION 3. The President of the City Council is hereby authorized to execute said Agreement on behalf of Pueblo, a Municipal Corporation, and the City Clerk shall affix the Seal of the City thereto and attest the same. SECTION 4. In addition to the amount of the bid set forth, as aforementioned, an additional amount as stipulated in this section is hereby established for contingencies and additional work. Contingencies and Additional Work………$576,285 SECTION 5. The officers and staff of the City are directed and authorized to perform any and all acts consistent with the intent of this Resolution and the attached agreement to effectuate the transactions described therein. SECTION 6. This Resolution shall become effective immediately upon passage and approval. INTRODUCED: July 28, 2014 BY: Chris Kaufman COUNCILPERSON H City Clerk’s Office Item # Q-1 Background Paper for Proposed Resolution COUNCIL MEETING DATE: July 28, 2014 TO: President Sandra K. Daff and Members of City Council CC: Sam Azad, City Manager VIA: Gina Dutcher, City Clerk From: Gene Michael, Wastewater Director A RESOLUTION AWARDING A CONSTRUCTION CONTRACT IN THE SUBJECT: AMOUNT OF $2,881,429 TO K.R. SWERDFEGER CONSTRUCTION, INC. AND SETTING FORTH $576,285 FOR CONTINGENCIES, FOR THE FY2014 SOUTH PRAIRIE AVENUE SEWER SEPARATION PROJECT AND AUTHORIZING THE PURCHASING AGENT TO EXECUTE THE SAME SUMMARY: Attached is a resolution awarding a construction contract to K.R. Swerdfeger for FY2014 South Prairie Avenue Sewer Separation Project along Prairie Avenue from Amherst Avenue to McClelland Avenue. PREVIOUS COUNCIL ACTION : None BACKGROUND : The sanitary sewer main in Prairie Avenue was constructed as a combined sewer, carrying both stormwater and sanitary sewage flows. In 1977, stormwater and sanitary sewer flows were separated by installing and grouting in place a high-density polyethylene (HDPE) pipe to carry sanitary sewage in the bottom of the 48-inch brick storm sewer. The HDPE sanitary sewer is approximately 5,600 feet in length and runs in South Prairie Avenue from Amherst Avenue to McClelland Avenue. In 1984, a parallel storm sewer was installed in the section from Amherst Avenue to St. Clair Avenue (approximately 2,600 linear feet), so the 48-inch brick storm sewer is no longer used to carry stormwater flows in this section. However, the 48-inch brick storm sewer is still utilized to carry stormwater flows from St. Clair Avenue to McClelland Avenue.The purpose of the present project is two-fold: 1) to separate the storm and sanitary sewer pipes between St. Clair Avenue to McClelland Avenue as required by the Colorado Department of Health and Environment; and 2) to reduce infiltration in the sanitary sewer main from Amherst Avenue to McClelland Avenue. FINANCIAL IMPLICATIONS : The cost of the construction project will not exceed $2,881,429. Funds are available from the State Revolving Fund Loan and have been appropriated to Project WL1401. BOARD/COMMISSION RECOMMENDATION : Not applicable STAKEHOLDER PROCESS : A public hearing meeting was held on January 30, 2014 at the Greater Pueblo Chamber of Commerce at 6:30 p.m. ALTERNATIVES : Alternative No. 1 – No Action Under this alternative, the City would do no improvements to the existing sanitary or storm mains and the system would remain as is. Alternative No. 2 – Sliplining of 48-Inch Brick Storm Sewer Under this alternative, the upper section of the existing 48-inch storm sewer would be utilized as a host pipe and a new 18-inch inner diameter sanitary sewer would be installed using sliplining methods. A rigid pipe such as Fiberglass Reinforced Polymer Mortar (FRPM) or fusible polyvinyl chloride (PVC) would be utilized so that consistent grades can be obtained. The void space between the new pipe and the existing brick sewer would be filled with flow fill (low compressive strength concrete slurry). Existing manholes would be rehabilitated and additional manholes would be added for any sections of pipe longer than 300 feet. As part of this alternative, approximately 2,200 feet of new 30-inch diameter storm sewer would need to be installed from Lucas Avenue to McClelland Avenue to service existing storm inlets that are currently connected to the 48-inch brick pipe that will be removed. There are no inlets between St. Clair Avenue and Lucas Avenue, which is the reasoning why the storm sewer can start at Lucas Avenue. The engineer’s estimate for Alternative No. 2 is approximately $4.03 million. Figure 4. Cross Section of Sliplining Upper Section of Brick Sewer for Alternative No. 2 Alternative No. 3 – Abandon 48-Inch Brick Storm Sewer This alternative involves installing a new SPA Collector in the same alignment as the existing sewer in South Prairie Avenue from roughly McClelland Avenue south to Amherst Avenue. Approximately 900 feet (between Amherst Avenue and Imperial Avenue) of the new collector would be installed above the existing 48-inch sewer, while installation of the remaining 4,700 feet of the new collector would require removal of the existing 48-inch brick sewer. In the portion of the alignment that the new sewer will be installed above the existing sewer, the existing sewer would be abandoned in place and filled with flow fill. As part of this project, approximately 2,200 feet of new 30-inch diameter storm sewer would need to be installed from Lucas Avenue to McClelland Avenue to service existing storm inlets that are currently connected to the 48-inch brick pipe that will be removed. There are no inlets between St. Clair Avenue and Lucas Avenue, which is the reasoning why the storm sewer can start at Lucas Avenue. The engineer’s estimate for Alternative No. 3 is approximately $7.36 million. Alternative No. 4 – Gaylord Avenue South Prairie Avenue is an arterial street for the City due to its importance in routing traffic to the State Fairgrounds. This alternative involves the installation of a completely new sanitary main from Amherst Avenue to McClelland Avenue with a portion installed in Gaylord Avenue in order to minimize traffic impacts to South Prairie Avenue. The existing 48-inch brick storm sewer would still be utilized for storm flow from St. Clair Avenue to McClelland Avenue. The existing sanitary main would be abandoned in place and filled with flow fill. The Gaylord Avenue alignment would start at roughly McClelland Avenue and South Prairie Avenue and continues south to Adams Avenue. The alignment would then head east on Adams Avenue to Gaylord Avenue and then south to St. Clair Avenue. At St. Clair Avenue, the alignment would head west back to South Prairie Avenue and continue south on South Prairie Avenue to its termination at Amherst Avenue. Three sanitary collector sewers (Nuckolls Avenue, Thatcher Avenue, and Lucas Avenue) would need to be reconnected. The sanitary main serving the Kenwood Drive area would need to be connected onto the new alignment in St. Clair Avenue due to conflicting elevations. The engineer’s estimate for Alternative No. 4 is approximately $6.83 million. All these alternatives were significantly more expensive and would impact the flow of traffic more than the preferred alternative. RECOMMENDATION : Approval of the Resolution. Attachments : Bid Summary Sheet Site Location Map