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HomeMy WebLinkAbout10-22-2001CITY OF AUBURN PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 I. CALL TO ORDER The meeting was called to order at 4:03 p.m. Those in attendance were Mayor Booth, Committee Chairman Rich Wagner, Council/Committee member Pete Lewis, and Council/Committee member Sue Singer. Staff in attendance were City Engineer Dennis Dowdy, Assistant City Engineer Dennis Selle, Assistant City Engineer/Utilities Duane Huskey, Storm Drainage Engineer Tim Carlaw, Sewer Utility Engineer Jeff Roscoe, Water Utility Engineer Tim Osborne, Traffic Engineer Michael Fuess, Project Engineers Evelyn Choe and Ingrid Gaub, Special Projects Engineer Jack Locke, Finance Director Shelley Coleman, and Administrative Services Supervisor Pam Miller. Guests in attendance were Tracey Dunlap and Nihat Dogan, Financial Consulting Solutions Group, Inc.; Jay Smith and Tony Melone, Tetra Tech/KCM; Larry Karpac, Northwest Hydraulic Consultants; Bill Peloza; Mark Hancock. II. CONSENT A. APPROVAL OF MINUTES It was moved by Councilmember Lewis, seconded by Chairman Wagner, that the Committee approve the Public Works Committee minutes for October 8, 2001, as submitted. Motion carried. B. RIGHT-OF-WAY USE PERMIT 32-01, CITY OF AUBURN PARKS & RECREATION, FOR ANNUAL VETERANS DAY OBSERVANCE AND STATIC DISPLAY Right-of-way Use Permit No. 32-01 would allow the City of Auburn Parks & Recreation Department to use City streets on Saturday, November 10, from 8:00 a.m. to 1:00 p.m. for their annual Veterans Day Observance and Static Display. The Parks Department is making all necessary street closure arrangements with the Street Division and Police and Fire Departments. It was moved by Councilmember Lewis, seconded by Chairman Wagner, that the Committee approve Right-of-way Use Permit 32-01. Motion carried. C. FINAL PAY ESTIMATE # 1 TO CONTRACT 00-11 WITH STRIPE RITE AND ACCEPT CONSTRUCTION OF PROJECT NO. C0007, CHANNELIZATION PROGRAM This project provided for modification and maintenance renewal of roadway striping, stop bars and miscellaneous pavement markings. The final pay estimate #1 is in the amount of $35,630.64. It was moved by Councilmember Lewis, seconded by Chairman Wagner, that the Committee approve Right-of-Way Use Permit 32-01. PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 Page 2 of 7 D. AG-C-158 WITH ROTH HILL ENGINEERING PARTNERS, INC., FOR SANITARY SEWER MODEL Agreement No. AG-C-158 with Roth Hill Engineering Partners, Inc. is for modeling the City's Sanitary Sewer System. Roth Hill shall utilize MOUSE Software procured by Auburn to model the Sanitary Sewer System. The term of the agreement is to December 31, 2002. For the year 2001 the contract amount shall not exceed $75,000. The contract is to be finalized in 2002. The total contract amount for this Agreement shall not exceed $160,207 (pending 2002 final budget approval). Sewer Utility Engineer Roscoe clarified the budget, stating that $100,000 had been budgeted for 2001, but no funds had been expended, to date. While the agreement limits expenditures to $75,000 for this year, it is anticipated the full amount will not be expended due to the late start on the project; however, there will be some costs this year to acquire software. Chairman Wagner asked for copies of the scope of work, delaying action on this item until later in the meeting, after copies could be made and distributed to the Committee. For the purpose of these minutes, the following discussion took place after Consent Item E. Sewer Utility Engineer Roscoe distributed copies of the scope of work, which were reviewed by Committee members. Chairman Wagner asked that progress report be given to the Committee in February. It was moved by Councilmember Lewis, seconded by Councilmember Singer, that the Committee recommend Council approve AG-C-158 with Roth Hill Engineering Partners. Motion carried. E. AMENDMENT #3 TO AGREEMENT NO AG-C-130 WITH TETRA TECH/KCM FOR WORK RELATED TO THE COMPREHENSIVE STORM DRAINAGE PLAN UPDATE For the purpose of these minutes, this item was discussed after Information/Discussion Item A. Agreement No. AG-C-130 with Tetra Tech/KCM,' Inc., is for completion of the City's 2001 Stormwater Comprehensive Drainage Plan. Amendment #2 provided additional studies in support of the building and grading permit moratorium established pursuant to Auburn City Ordinance 5518. Amendment #3 develops alternatives for the moratorium area's Subbasin P and adjacent Subbasin E based upon the findings of the additional studies performed in Amendment #2. The results of this analysis, in terms of the feasible and recommended drainage alternatives, will be incorporated into the City's 2001 Stormwater Comprehensive Drainage Plan. Completion of the alternatives is expected at the end of 2001. Formal adoption of the Plan is scheduled for 2002. Amendment #3 is in the amount of $16,630 and brings the total contract amount to $330,720. PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 Page 3 of 7 It was moved by Councilmember Lewis, seconded by Councilmember Singer, that the Committee recommend Council approve Amendment #3 to Agreement No. AG-C-130 with Tetra Tech/KCM, provided the scope of work and amount of the amendment is revised to include work to model the future buildout condition of the 100-year flood plain and prediction of the future flood plain elevation of the area, and a sensitivity analysis of future conditions, Motion carded. III. ISSUES A. RESOLUTION NO. 3395, CALL FOR PUBLIC HEARING ON STREET VACATION NO. V-03-01, SEGALE BUSINESS PARK, 120TM AVE SE Resolution No. 3395 fixes a time for a public hearing on December 3, 2001, on the petition from Segale Business Park for vacation of 120t~ Avenue SE, north of 53'u Avenue SE (Street Vacation No. V-03-01 ). It was noted by Chairman Wagner that 120th Avenue SE, the area requested to be .vacated, could potentially provide access to the top of Coal Creek Springs, and asked that the staff presentation at the public hearing include information regarding easements, property ownership, and potential lot line adjustments, and maps illustrating the right-of- way and its relationship to Coal Creek Springs. It was moved by Councilmember Lewis, seconded by Chairman Wagner, that the Committee recommend Council adopt Resolution No. 3395. Motion carried. Council/Committee member Sue Singer arrived at the meeting at this point on the agenda. IV, INFORMATION OR DISCUSSION A. MORATORIUM UPDATE City Engineer Dowdy began the update by reviewing the history leading up to the City Council's decision to establish a moratorium on the filing of building and grading permit applications so that studies could be performed to determine the cause and extent of the flooding. In August of this year, the moratorium was extended for another six months to allow time to assess the apparent flooding problem and to determine if cost effective solutions can be developed. He explained that this update will cover the identified problems based on investigations to date, and the scope of work necessary to identify the feasibility of possible solutions. Storm Drainage Engineer Carlaw introduced Jay Smith and Tony Melone of Tetra Tech/KCM, and Larry Karpac of Northwest Hydraulic Consultants (NHC). Mr. Karpac stated that in the early 1990s, his firm worked on the Mill Creek Flood Control Plan (MCFCP) for the cities of Auburn and Kent, and King County, and developed hydraulic models based on past information and the FEMA model. Since recent observations indicate that the water levels in the basin are consistently higher than indicated by the FEMA work or anticipated by the (MCFCP), his firm was contracted to study the hydrology and hydraulics of current conditions. Using the information gathered and the stage data from WSDOT for various locations along Mill Creek, the 1996 storm was PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 Page 4 of 7 used to calibrate the Mill Creek model. A 50-year rainfall record was then run through the calibrated model to determine an estimate for the current 100-year flood plain. A map comparing FEMA's previously-determined flood plain with the current flood plain was presented to the Committee. It was noted that the water levels in the basin are about 1.5 feet higher than previous studies performed to establish the current FEMA flood plain indicate. Another map was presented to the Committee to illustrate land use and what areas are draining to the Mill Creek basin. In response to a question from the Committee, Mr. Karpac stated that the model deals primarily with surface water. He estimated greundwater contribution to be less than 5% of the total surface water flow during an event. However, he did mention that during the calibration, the central gauge at 29th Street SE consistently showed 2 cubic feet per second (cfs) more flow than in the simulation, indicating a base flow coming from greundwater. He further opined that this flow prebably is coming from the White River threugh the shallow aquifer on a consistent basis. Assistant City Engineer/Utilities Huskey stated that there is ongoing work to incorporate the hydraulic model with the greundwater model being developed by Pacific Groundwater Greup in support of the City's water rights application. Jay Smith, Tetra Tech/KCM, talked about how the preposed scope of work in Amendment #3 will take NHC's results and incorporate them into the stormwater planning for subbasins P and E. He stated that there are three main reasons why the Comprehensive Plan Alternatives for the moratorium area need to be revised: (1) A substantially higher tailwater elevatior{ requires further feasibility work; (2) the more raftned work will provide the feasible options for drainage solutions in the Comprehensive Plan; and (3) once the feasible solutions are determined, the requirements for any new development will be known. Mr. Smith stated that with the new calibration and higher water elevations, regional systems to detain and convey runoff may require pumping, and may require larger areas of land to detain water. He handed out a list of Alternative Components for Subbasins E and P, stating that Tetra Tech/KCM would be studying the feasibility of these alternatives in light of the new information, running cost analyses, and returning to the Committee with the findings and feasible alternatives. Mr. Karmac mentioned that he has a map on future conditions of the flood plain; however, they are based on work done in 1995, so would be to a lesser standard. Discussion was held on the water draining to the basin from the west hill area, and possible cost sharing ideas with up-stream developere and other jurisdictions. The Committee also asked that future presentations give a comparison of size of preposed detention areas to that of the 21St Street SE facility. The Committee asked that the altematives be presented at their November 13 meeting, if possible, and that the cost estimates include capital costs to construct, operating costs, mitigation costs, and preperty acquisitions costs, and stated that they are interested in alternatives that are cost effective for the long-term. PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 Page 5 of 7 B. WATER, SEWER, AND STORM SYSTEM DEVELOPMENT CHARGES For the purpose of these minutes, this item was discussed after Consent Item E. Tracey Dunlap, Financial Solutions Consulting Group (FSCG) reminded the Committee that in August, she had presented an analysis of the System Development Charges (SDCs) for Sewer and Water, and would now be presenting Storm. She gave a brief review of the proposed three methodologies for calculating SDCs and then went over the Draft Calculated SDC amounts for all three utilities. She stated that Water and Sewer SDCs had been updated to reflect revisions to projects in the Comp Plan since the last review. She also stated that her last presentation had included a 1 O-year option, but it was eliminated because of the changes that can occur to the Capital Facilities Plan in ten years. Chairman Wagner was concerned that using the 20-year option might inflate the figures, and asked that the 1 O-year option be included in her next presentation. Council/Committee members Lewis and Singer concurred. Following discussion about the proposed SDCs as calculated using the three methods, Ms. Dunlap reviewed a comparison of the effect of the three methodologies on the utilities' revenues. It was noted that Methods I and 2 significantly reduce revenue generated by Sewer SDCs, and Ms. Dunlap commented that Sewer SDCs could be frozen until the old SDC rates are matched or exceeded by the future SDC rate calculation. She also said that as long as there is good rationale, the same method does not have to be used for all three utilities. The Committee discussed a table showing Aubum's proposed rates under the three methodologies compared to those of neighboring jurisdictions, and Council/Committee member Lewis asked that Algona be dropped from the comparison chart, and that Renton be added. The Committee asked that this issue be presented to them at their next meeting, and their requests for the next presentation were summarized as follows: Eliminate Method 3, include a 1 O-year option, and substitute the City of Renton for the City of Algona on the comparison chart. C. SEWER COST OF SERVICE, CAPITAL FACILITIES PLAN, AND RATE STUDY Tracey Dunlap, Financial Consulting Solutions Group, gave a bdef overview of the Sewer Cost of Service Study. She reviewed the Cost of Service Study methodology and rate revenue requirements. The draft results of the study indicate that the rate increases adopted in 1999 are sufficient to meet the utility's needs in 2002 and 2003; however the utility is consuming working capital to meet operating needs. If that pattern continues, it's likely that future increases may be needed beyond 2003. Ms. Dunlap noted that the cost allocation between single and non-single family residential are not different enough to change them, and that a conservation option would result in some reduction for low users, but significantly higher bills for high users. Since no changes to the rates are required at this time, staff recommendation would be to not implement the conservation option, but to consider it the next time rates are reviewed. A list of Sewer Capital Projects was included in the agenda packet. Chairman Wagner asked that it be placed on the agenda for their next meeting, along with the Muckleshoot PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 Page 6 of 7 ,ndian Tribe sewer issue. D. UPDATE ON PR 629, CORROSION CONTROL TREATMENT FACILITY For the purpose of these minutes, this item was discussed after Information/Discussion Item E. Project Engineer Choe gave an update on the PR 629, Corrosion Control Treatment Facility. Her briefing was organized around the two sites involved: Fulmer Field and the existing Coal Creek Springs pump station on Howard Road. She reviewed progress made to date at each site. In response to a question from the Committee, Project Engineer Choe stated that fiyers had been distributed regarding the project. The Committee asked that a schematic drawing of the project be placed at the site, particularly at Fulmer Field, and that the project be described as a Water Quality Project, rather than using the engineering term related to corrosion control treatment. The Committee also asked that fiyers be mailed out prior to the tanks being delivered. E. UPDATE ON PR 529, 3RD STREET SW GRADE SEPARATION PROJECT For the purpose of these minutes, this item was discussed after Information/Discussion Item C. Project Engineer Gaub stated that while about 60% of the contract time has elapsed, the contractor has completed about 75% of the work, so the project is on schedule. She reviewed recent accomplishments, such as the status of the bddges, walls, and ponds, and discussed major upcoming impacts, of which the reconstruction of 'C' Street, near Main Street, and reconfiguration of the signal at that intersection is the most significant. This work will impact traffic and is likely to begin later this week and take several weeks to complete. The contractor is also working toward completing the reconstruction of the 3~d Street SW/Division Street intersection, along with the Main/'C' Street work. In response to a question from Chairman Wagner, Project Engineer Gaub responded that the $1 million City participation in 2002 as shown on the cash flow sheet does still exist, and has been included in the 2002 budget, along with the traffic mitigation and impact fees required for the next year. F. CAPITAL PROJECT STATUS REPORT In response to a question from Chairman Wagner, City Engineer Dowdy stated that a revised Intertie Agreement has been forwarded to the City of Bonney Lake; however, the City has not yet heard back from them. The agreement was revised to indicate that Auburn would pay for the intertie, but that if the intertie benefits Bonney Lake in the future, they would pay a pro rata share. City Engineer Dowdy gave the Committee an update on the East Valley Highway road closure, stating that Puget Sound Energy (PSE) did some unorthodox cutting of underlying concrete pavements. The City is exercising the franchise agreement with PSE to get them to restore the road to City standards, but it appears the road will need to be closed for another one to two weeks. PUBLIC WORKS COMMITTEE MINUTES OCTOBER 22, 2001 Page 7 of 7 City Engineer Dowdy mentioned that Traffic Engineer Fuess is currently reviewing the traffic control plan for the Auburn Regional Medical Center expansion project. The hospital may need a Right-of-way Use Permit to accomplish the work. V. ADJOURNMENT There being no further business to come before the Public Works Committee, the meeting was adjourned at 6:30 p.m. Submitted by Pam Miller, Administrative Services Supervisor. Approved by the Public Works Committee on (~.g/'~,~-,L/_.~, PM/bd File: 17 (17.2) REF. H:\ENGINEER\E01 \E01-1544 (E:\MINUTES\01PW10-2)