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HomeMy WebLinkAbout163-21 RESOLUTION113 West Mountain Street Fayetteville, AR 72701 (479) 575-8323 Resolution: 163-21 File Number: 2021-0386 FTN ASSOCIATES, LTD. AMENDMENT NO. 1: A RESOLUTION TO APPROVE AMENDMENT NO. 1 TO THE PROFESSIONAL ENGINEERING SERVICES AGREEMENT WITH FTN ASSOCIATES, LTD. IN THE AMOUNT OF $107,706.00 FOR FURTHER ASSESSMENT OF THE LAKE FAYETTEVILLE SPILLWAY CAPACITY AND RECOMMENDED IMPROVEMENTS AS REQUIRED BY THE ARKANSAS NATURAL RESOURCES COMMISSION WHEREAS, on October 1, 2019, the City Council passed Resolution 223-19 to approve a Professional Engineering Services Agreement with FTN Associates, Ltd. for the completion of Phase One of the assessment of the Lake Fayetteville Spillway capacity and provided recommendations for improvements as required by the Arkansas Natural Resources Commission; and WHEREAS, the results of Phase One demonstrated that the current spillway has the capacity to pass approximately 70% of the Probable Maximum Flood and Amendment No. 1 will provide funding to consider several modification options to the spillway to achieve the capacity to pass 100% of the Probable Maximum Flood. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF FAYETTEVILLE, ARKANSAS: Section 1: That the City Council of the City of Fayetteville, Arkansas hereby approves Amendment No. 1 to the Professional Engineering Services Agreement with FTN Associates, LTD. in the amount of $107,706.00 for further assessment of the Lake Fayetteville Spillway Capacity and to provide recommendations for improvements to achieve the capacity to pass 100% of the Probable Maximum Flood as required by the Arkansas Natural Resources Commission. Page 1 PdMed on &1=1 Resolution: 163-21 File Number: 2021-0386 PASSED and APPROVED on 6/1/2021 Attest: R k-A/7AVA �&JZIII ��. STD Kara Paxton, City Clerk Treasurer ImIlIkO Page 2 Printed on 612121 City of Fayetteville, Arkansas 113 West Mountain Street Fayetteville, AR 72701 (479)575-8323 Text File File Number: 2021-0386 Agenda Date: 6/1/2021 Version: 1 Status: Passed In Control: City Council Meetinq File Type: Resolution Agenda Number: A.18 FTN ASSOCIATES, LTD. AMENDMENT NO. 1: A RESOLUTION TO APPROVE AMENDMENT NO. 1 TO THE PROFESSIONAL ENGINEERING SERVICES AGREEMENT WITH FTN ASSOCIATES, LTD. IN THE AMOUNT OF $107,706.00 FOR FURTHER ASSESSMENT OF THE LAKE FAYETTEVILLE SPILLWAY CAPACITY AND RECOMMENDED IMPROVEMENTS AS REQUIRED BY THE ARKANSAS NATURAL RESOURCES COMMISSION WHEREAS, on October 1, 2019, the City Council passed Resolution 223-19 to approve a Professional Engineering Services Agreement with FTN Associates, Ltd. for the completion of Phase One of the assessment of the Lake Fayetteville Spillway capacity and provided recommendations for improvements as required by the Arkansas Natural Resources Commission; and WHEREAS, the results of Phase One demonstrated that the current spillway has the capacity to pass approximately 70% of the Probable Maximum Flood and Amendment No. 1 will provide funding to consider several modification options to the spillway to achieve the capacity to pass 100% of the Probable Maximum Flood. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF FAYETTEVILLE, ARKANSAS: Section 1: That the City Council of the City of Fayetteville, Arkansas hereby approves Amendment No. 1 to the Professional Engineering Services Agreement with FTN Associates, LTD. in the amount of $107,706.00 for further assessment of the Lake Fayetteville Spillway Capacity and to provide recommendations for improvements to achieve the capacity to pass 100% of the Probable Maximum Flood as required by the Arkansas Natural Resources Commission. City of Fayetteville, Arkansas Page 1 Printed on 61212021 Tim Nyander Submitted By City of Fayetteville Staff Review Form 2021-0386 Legistar File ID 6/1/2021 City Council Meeting Date - Agenda Item Only N/A for Non -Agenda Item 5/12/2021 WATER SEWER (720) Submitted Date Division / Department Action Recommendation: Staff recommends approval of Amendment No. 1 to the Engineering Services Agreement with FTN Associates, Ltd. in an amount not to exceed $107,706.00 for Assessment of the Lake Fayetteville Spillway Capacity and Recommended Improvements as Required by the Arkansas Natural Resources Commission. 5400.720.1840-5314.00 Account Number 02064.1 Project Number Budgeted Item? Yes Does item have a cost? Yes Budget Adjustment Attached? No Budget Impact: Water and Sewer Fund Water & Sewer Rate/Operations Study Project Title Current Budget Funds Obligated Current Balance Item Cost Budget Adjustment Remaining Budget $ 241,885.00 $ 26,947.63 $ 214,937.37 $ 107, 706.00 V20180321 Purchase Order Number: Previous Ordinance or Resolution # 223-19 Change Order Number: Original Contract Number: Approval Date: Comments: The original 2019 PO was closed out, a new PO and contract number will be issued for this amendment. CITY OF FAYETTEVILLE ARKANSAS MEETING OF JUNE 1, 2021 TO: Mayor and City Council THRU: Susan Norton, Chief of Staff Tim Nyander, Utilities Director FROM: Corey Granderson, Utilities Engineer DATE: May 12, 2021 CITY COUNCIL MEMO SUBJECT: Amendment No. 1 to the Engineering Services Agreement with FTN Associates, Ltd. for Assessment of the Lake Fayetteville Spillway Capacity and Recommended Improvements as Required by the Arkansas Natural Resources Commission RECOMMENDATION: Staff recommends approval of Amendment No. 1 to the Engineering Services Agreement with FTN Associates, Ltd. in an amount not to exceed $107,706.00 for Assessment of the Lake Fayetteville Spillway Capacity and Recommended Improvements as Required by the Arkansas Natural Resources Commission. BACKGROUND: The Lake Fayetteville Dam is regulated by the Arkansas Natural Resources Commission (ANRC) and is classified as an `intermediate -size, high -hazard' dam based on storage volume and downstream conditions, respectively. The City of Fayetteville Water and Sewer Division is responsible for Dam maintenance, inspection, and upkeep. The ANRC completed a comprehensive inspection of the dam and available reports/plans most recently in Fall 2018. One of the key findings by ANRC was that the spillway is reported to have a capacity to pass 50% of the Probable Maximum Flood (PMF), however, for an intermediate/high-hazard classification the spillway must be capable of passing 100% of the PMF. DISCUSSION: FTN Associates, Ltd. is a local engineering firm with expertise in lakes, dams, hydraulics, and hydrology. They were formally selected to provide engineering analysis and design regarding the current Lake Fayetteville spillway capacity and to explore options for increasing this capacity to pass 100% of the PMF. Phase One of this study is completed and provided the hydraulic and hydrologic calculations necessary to define the PMF in this watershed, and demonstrated that the current spillway passes about 70% of the PMF. Future Phases Two and Three would analyze downstream effects (City of Johnson) and construction -level engineering design. After each phase of this project, the City will meet with ANRC to ensure compliance and agreement for next steps. With Phase One completed, and concurrence received from ANRC, Amendment No. 1 will now provide funding for the Spillway Feasibility Analyses to look at several modification options to the spillway to achieve the required 100% PMF. The hydraulic model will Mailing Address: 113 W. Mountain Street www.fayetteville-ar.gov Fayetteville, AR 72701 look downstream and assess the impacts of modifications at the spillway on downstream property. BUDGET/STAFF IMPACT: Amendment No. 1 will increase the project cost by $107,706.00 for a total project budget of $171,206.00. Funds are available in the Water & Sewer Rate/Operation Study account. Attachments: Amendment No. 1 Scope/Fee Matrix Resolution 223-19 AMENDMENT NO. 1 To AGREEMENT FOR PROFESSIONAL ENGINEERING SERVICES Between CITY OF FAYETTEVILLE, ARKANSAS And FTN ASSOCIATES, LTD. (FTN) LAKE FAYETTEVILLE SPILLWAY IMPROVEMENTS WHEREAS, on October 1, 2019, the City of Fayetteville, Arkansas (CITY OF FAYETTEVILLE) and FTN Associates, Ltd. of Fayetteville, Arkansas (ENGINEER) entered into an Agreement for engineering services in connection with the Lake Fayetteville Spillway Improvements (the "Project"); and WHEREAS, the CITY OF FAYETTEVILLE now wishes to increase the scope of work to include performing a feasibility study, which may include updating the previously completed Phase I hydrologic and hydraulic analyses and performing other analyses (if needed) to further support the feasibility study and produce up to three (3) conceptual designs for proposed spillway alternatives, which will provide the CITY OF FAYETTEVILLE with the basis for selecting a preferred alternative for the spillway modification. The work shall also include project management, meetings, and general coordination with the CITY OF FAYETTEVILLE contractor; and WHEREAS, the current Agreement must now be amended to provide the additional scope and amount of compensation to the ENGINEER for the additional work; and NOW THEREFORE, in consideration of the mutual covenants and Agreements herein contained, CITY OF FAYETTEVILLE and the ENGINEER, the parties hereto, stipulate and agree that the Agreement for Engineering Services, dated October 1, 2019, is hereby amended in the following particulars: SECTION 5 — PAYMENTS TO ENGINEER 5.1 The increase in cost for Amendment No. 1 is $107,706.00, with the cumulative total Not to Exceed for this project being $171,206.00. The CITY OF FAYETTEVILLE shall compensate ENGINEER based on an hourly NTE basis. APPENDIX A — SCOPE OF SERVICES Add the following Paragraphs: PHASE II — SPILLWAY FEASIBILITY ANALYSES TASK I: UPDATE OF HYDROLOGIC AND HYDRAULIC ANALYSIS FTN will review and update, as appropriate, the previously developed hydrologic and hydraulic modeling, completed as part of Phase 1, with recent watershed changes and/or examine proposed CITY OF FAYETTEVILLE projects that may impact the Lake Fayetteville spillway. This task does not include further subdivision of existing hydrologic drainage basins, or modeling of additional scenarios, storm events, or extents that were not previously included as part of the Phase I — Existing and Proposed Conditions Evaluation. Modeling parameters for Lake Fayetteville Spillway Improvements - Amendment No.1 Page 1 this task will be reviewed during any updates performed. Modification of model parameters will only be performed if it is determined that the parameters provide more appropriate, conservative values than those that were previously used in the Phase I analysis. If further revisions (e.g., additional scenarios, storm events, or extents, etc.) are requested beyond those described above, they can be performed as Additional Services. TASK II: SPILLWAY FEASIBILITY ANALYSES SCENARIOS Using the future conditions discharges developed in the previous Phases and Tasks as the starting point, a proposed conditions model will be developed for up to three (3) conceptual spillway modification scenarios. Due to the limited space at the current Lake Fayetteville spillway location, the conceptual spillway scenarios may include, but not be limited to: • An uncontrolled labyrinth weir to replace the existing spillway; • An auxiliary, uncontrolled spillway placed at a secondary location on the dam, which could include use of intake structure or culverts passing through the dam; • Modify the crest elevation of the existing dam along with use of the current spillway; • Develop a lake drawdown plan for active pre -storm management; and/or, • A combination of any of the above. At this time, there appears to be no one straightforward solution because of the spillway's limited space and capacity, as each of the conceptual spillway scenarios has some limiting constraint or inherent risk associated therewith. Prior to beginning analyses, FTN will meet with the City to define up to three scenarios to be evaluated during this study. Based on the size and hazard classification of the existing dam (i.e., intermediate size and high hazard), the Spillway Design Flood (SDF) will be the full Probable Maximum Flood (PMF) in accordance with Arkansas Natural Resource Commission (ANRC) rules. Various configurations will be analyzed until a configuration is achieved that allows the SDF to be conveyed through the structure without overtopping the dam. TASK III: FEASIBILITY STUDY REPORT AND CONCEPTUAL DESIGNS) Based on the results of the preceding tasks, FTN will develop schematic designs for up to three (3) alternative designs and present these in a Feasibility Study Report. The report will include a discussion of the analyses performed and supporting data, schematic drawings of proposed improvements and conceptual design level opinions of probable construction costs. TASK IV: COORDINATION AND PROJECT MANAGEMENT Project management and client coordination, including preparation of monthly progress reports, and up to three (3) meetings with the CITY OF FAYETTEVILLE personnel virtually or in person. Upon acceptance of this proposal, FTN will coordinate with the CITY OF FAYETTEVILLE Point of Contact to schedule an initial meeting to go over the spillway scenarios for consideration to assist the CITY OF FAYETTEVILLE in selecting up to three (3) conceptual spillway scenarios for analysis prior to proceeding. Lake Fayetteville Spillway Improvements - Amendment No.1 Page 2 DRAFT OUTLINE SCOPE OF WORK FOR SERVICES RELATED TO REMAINING PHASES PHASE III — DESIGN PHASE (SPECIFIC SCOPE OF SERVICES TO BE DEVELOPED FOLLOWING COMPLETION OF PHASE 2) (POTENTIAL FEE RANGE: $ $150, 000 - $225, 000) TASK I: GEOTECHNICAL INVESTIGATION TASK II: 30% CONCEPT DESIGN SUBMITTAL TASK III: 75% DESIGN SUBMITTAL TASK IV: FINAL DESIGN SUBMITTAL TASK V: REGULATORY FLOODPLAIN COORDINATION AND COMPLIANCE TASK VI: SECTION 404 PERMITTING (CONCURRENT WITH DESIGN TASKS TASK VII: ADEEDEQ SHORT TERM ACTIVITY AUTHORIZATION (STAA) TASK VIII: CONSTRUCTION STORM WATER PERMITTING TASK IX: COORDINATION AND PROJECT MANAGEMENT APPENDIX B — SCHEDULE AND DELIVERABLES Add the following Paragraphs: PROPOSED SCHEDULE TASK START * END PROJECT AUTHORIZATION 7/1/2021 HYDROLOGIC AND HYDRAULIC MODELING UPDATES 7/1/2021 10/31/2021 FEASIBILITY ANALYSES 10/1/2021 1/31/2022 FEASIBILITY REPORT AND CONCEPTUAL DESIGNS 12/1/2021 3/31/2022 PROJECT MANAGEMENT 7/1/2021 3/31/2022 * All dates calculated based off assumed start date of 7/1/2021. DELIVERABLES Feasibility Study Report describing the alternatives that were analyzed as part of the Project and supporting data. Additionally, the report will include schematic designs for the alternatives considered. Lake Fayetteville Spillway Improvements - Amendment No.1 Page 3 APPENDIX C — FEE SCHEDULE 2021 Fee Schedule' FTN Associates, Ltd. Labor Category Hourly Rate Professional 7 $ 215.00 Professional 6 190.00 Professional 5 170.00 Professional 4 150.00 Professional 3 135.00 Professional 2 115.00 Professional 1 105.00 Technician 4 105.00 Technician 3 95.00 Technician 2 85.00 Technician 1 70.00 Executive Assistant 76.00 Word Processing 66.00 Direct Expenses Should back-up data be requested for reimbursable expenses, it will be provided for an administrative fee. Payment Terns Unless other arrangements are made in writing, invoicing will be monthly for services completed and will be sent via email to the Client. Payment is due in full within 30 days of invoice and are preferred to be paid electronically through Automated Clearing House (ACH) system; however, other methods are acceptable. A service charge of 1.5 percent per month will be charged on all balances over 30 days. 'Effective January 1, 2021 —December 31, 2021 IN WITNESS WHEREOF, CITY OF FAYETTEVILLE, ARKANSAS by and through its Mayor, and ENOINEER, by its authorized officer have caused this Amendment to be duly executed this day of 2021. CITY OF FAYETTEVILLC, ARKANSAS ENGINEER Li 0 By:-�a City Clerk END OF AMENDMENT I ...� B ,,��ttrrrrrrrr���� l Y p '�`i'G�'• FAYETT EVILLE Ttle: Vice President 40;&"Ovai FOR PROFESSIONAL ENGINEERING i i 1 j5BRVICES Lake Fayetteville Spillway Improvements - Amendment No. I Page 4 0 0 0 N 0 Iz V o O fp �' C O np 7 O C., F R vi N ,o a N r O fA dq 69 !A y h D N N H O N N ti b x 0 01 �O 00 Ncq M Q� M Vl M wW .-.V't N lr ai N V1 69 69 69 69 yj 69 69 yj 69 69 69 69 yj 69 N M N o0 l� N M O N oo 10 10 N H V 7 M M M V 10 r- M 69 r Y 69 W O 'y N O N � N � I..I d it � Fy 69 � F 9 b9 W C ti o � V1 N o0 u y o c 10 V 69 M o0 N N i O O � W d � � i a b OOi R G � py N 7 N bA as G x u > o ❑ � 04 � Cx� °A U to Z aai rl N M 7 N {ac p►.rrrr�.: °e V A ilz e�. 113 West Mountain Street Fayetteville, AR 72701 (479) 575-8323 Resolution: 223-19 File Number: 2019-0588 FTN ASSOCIATES, LTD; A RESOLUTION TO APPROVE A PROFESSIONAL ENGINEERING SERVICES AGREEMENT WITH FTN ASSOCIATES, LTD., PURSUANT TO RFQ 419-01, IN THE AMOUNT OF $63,466.00 FOR THE COMPLETION OF PHASE ONE OF AN ASSESSMENT OF THE LAKE FAYETTEVILLE SPILLWAY CAPACITY AND RECOMMENDED IMPROVEMENTS AS REQUIRED BY THE ARKANSAS NATURAL RESOURCES COMMISSION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF FAYETTEVILLE, ARKANSAS: Section 1: That the City Council of the City of Fayetteville, Arkansas hereby approves a professional engineering services agreement with FTN Associates, Ltd., pursuant to RFQ #19-01, in the amount of $63,466.00 for the completion of Phase One of an assessment of the Lake Fayetteville spillway capacity and recommended improvements as required by Arkansas Natural Resources Commission. PASSED and APPROVED on 101112019 No j� R K %T� sir Attest: ■.■� ■■' GIiY .�yr••r fA 5 �rrf-vi, •Fn may'. �",qNS P`;•'.�.■. Lisa Branson, Deputy City Clerkviz� ON CC) Pa" 1 Printed on 101V19