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Home My WebLink AboutIPEC Water Supply Creek Task Order 1 April 23, 2020 Jodi Mitchell CEO/General Manager Inside Passage Electric Cooperative 12480 Mendenhall Loop Road Juneau AK, 99801 Subject: Water Supply Creek Hydroelectric Project, Final Design Proposal Dear Jodi: At your request, HDR Alaska, Inc. is pleased to provide this preliminary scope, schedule and budget for the final design of the Water Supply Creek Hydroelectric Project (Project). The final scope and budget for this work is subject to change from that presented as a result of further discussions with IPEC to clarify the scope of this design effort and the specific services required by IPEC to complete the design and associated permitting services. Proposed Scope of Work HDR will prepare a final design for the Water Supply Creek Hydroelectric Project near Hoonah, Alaska. This work will be based on the project described in the Water Supply Creek feasibility study completed by HDR for the Alaska Native Tribal Health Consortium (ANTHC) dated December 9, 2019. The work tasks HDR will perform and the work products from each task are as follows: Task 1: Permitting Permit applications for the following agencies will be prepared: • U.S. Army Corps of Engineers (USACE) Section 404 Permit • Alaska Department of Fish and Game Fish Habitat Permit • ADNR Water Rights Permit HDR’s support of the permit process is limited to preparing these permit applications. Although the Project is assumed to be non-controversial, the exact scope and nature of third party comments and requests is not known at this time. Accordingly responding to information requests, agency inquiries, and substantive comments received on the permit public notices during the public and agency comment period is not included as part of this scope, but can be incorporated by addendum once the nature of comments is known. Assumptions: • This will be a routine permitting process. Addressing substantial controversy, including development of extensive mitigation measures, is not included in this scope and would be conducted as an additional service item. hdrinc.com 2525 C Street, Suite 500 Anchorage, AK 99503-2633 (907) 644-2000 2 • This effort may not lead to acquisition of permits. If issues arise or if agencies request more information, an amendment may be required to satisfy the additional information requests. • Office-based desktop wetland delineation will be acceptable to the USACE; no field work is anticipated in this proposal. • Permit applications to be prepared are limited to those listed above. • The Project is not under jurisdiction of the Federal Energy Regulatory Commission (FERC) or the State of Alaska’s Dam Safety program. Task 2: Final Design Preliminary drawings, a preliminary construction cost estimate, and a project energy estimate have been completed for the ANTHC. This task will use this information as the basis to prepare final versions of these products. At this time the only field data required will be a site survey to support the final design. The amount included in the budget for the survey is a rough estimate based on prior experience with similar projects. The survey work will be based on a formal proposal from a qualified surveyor with experience in Southeast Alaska. If that proposal is more than the budgeted amount a contract amendment may be necessary. Due to the presence of exposed bedrock at the diversion and powerhouse locations, the shallow bury requirement for the penstock and the low magnitude of the design loads, we have not included geotechnical investigations in the estimate. If site conditions warrant, geotechnical investigation may be added by contract amendment. Task 2a: Final Design Criteria This task consists of formalizing and finalizing the design criteria for the Project. This will establish the design criteria for equipment, roads, pipeline, and project structures. The design criteria will be provided for one round of review and once approved/accepted by IPEC, HDR will move forward with the design. Should the design criteria subsequently change (or request to be changed), an addendum to HDR’s scope, schedule and budget may be necessary. Task 2b: Construction Bid Documents This task consists of preparing drawings and technical specifications required to bid and construct the Project. It is estimated that the following drawings will need to be prepared: Drawings Number of Sheets Project maps and Drawing Index 1 Project site overview map 1 Standard abbreviations 1 Survey Control 1 Diversion and intake plan and sections 4 Intake reinforcement 2 Intake details 2 Access Road plan and profiles 1 hdrinc.com 2525 C Street, Suite 500 Anchorage, AK 99503-2633 (907) 644-2000 3 Pipeline plan and profiles 3 Access Road and Pipeline sections and details 2 Bridge Sections and Details 2 Powerhouse site plan 1 Powerhouse plan and sections 2 Powerhouse foundation plan and sections 2 Powerhouse reinforcement 2 Powerhouse elevations 1 Electrical one-line diagram 1 Electrical control and schematics 2 Electrical interconnection 1 Miscellaneous details 3 Total Sheets 35 Drawings, details and sections will be prepared to construct the project including: structural details, trench details, cross section details, mechanical and electrical drawings. The drawings will be produced using AutoCAD and will be plotted on 22" by 34" standard size drawing sheets to allow half-size reduction to 11" by 17". Technical specifications for General Construction of the Project will be prepared in CSI format with EJCDC commercial terms. Drawings and specifications will be submitted for IPEC review at the 95% design stage. Task 2c: Construction Cost Estimate A construction cost estimate will be prepared based upon the IPEC-approved final design drawings. Unit quantities of excavation, backfill, concrete, and pipe bedding will be calculated. Unit prices for the turbine, generator, switchgear and control instrumentation will be based on product quotes provided by turbine/generator suppliers. Line items for administration, construction and management and start-up and commissioning will be added to the direct construction cost. Opinions of probable construction cost are made on the basis of information made available by IPEC , experience on recent similar projects, and HDR’s professional engineering judgment. However, since HDR has no control over the cost of labor, materials, equipment or services furnished by others, or over the contractor(s') methods of determining prices, or over competitive bidding or market conditions, HDR does not guarantee that proposals, bids or actual project or construction cost will not vary from opinions of probable cost HDR prepares. Task 2d: Project Energy Output Estimate Based on the available hydrology data and final project design, an updated estimate of monthly and annual average energy generation will be made. No new hydrologic monitoring will be conducted. Assumptions: • The energy output estimate will be based on the ADNR water rights permit-stipulated baseline instream/environmental flow. hdrinc.com 2525 C Street, Suite 500 Anchorage, AK 99503-2633 (907) 644-2000 4 Task 3: Bidding Assistance HDR will provide limited assistance for the bidding, evaluation and award of contracts for the supply of generating equipment, controls and for the general construction of the project. This proposal does not include construction administration or other support during construction. Deliverables Electronic copies of the following deliverables in PDF will be provided to IPEC: • Final Design Criteria Memorandum • 95% drawings and technical specifications • Contract bid package 01 - Supply and Start-up of Turbine, Generator, Controls and Associated Equipment • Contract bid package 02 – Supply of Penstock Material • Contract bid package 03 – General Construction • Construction cost estimate • Project Energy Output Estimate Schedule The actual schedule will be based upon a mutually agreed notice to proceed (NTP) date. HDR will meet the following schedule after NTP: • Final Design Criteria 1 month • Contract bid package 01 4 months • 95% drawings and technical specifications 6-9 months • Contract bid package 02 4 months • Contract bid package 03 10 months • Construction cost estimate 11 months • Project Energy Output Estimate 11 months Budget See attached budget spreadsheet for an estimate of the cost to complete this work. Given that the nature of this work may be subject to a wide array of external variables, field conditions, unforeseen conditions or other factors that could influence the level of effort ultimately required, HDR’s pricing presented is based on the assumptions provided, professional judgment and what is known at this time. Accordingly, HDR’s pricing does not cover or accommodate any and every circumstance which may arise. If additional tasks, unforeseen conditions, delays or project circumstances beyond those anticipated here arise, additional budget may be needed. Such a request would be the subject of a contract amendment. With respect to the ongoing COVID-19 pandemic, HDR will monitor changing conditions in the context of federal/state/local orders or other directives and re-evaluate the scope, schedule and budget as warranted. Costs incurred as a result of scope or schedule changes due to COVID-19 or related issues are not included as part of this scope. hdrinc.com 2525 C Street, Suite 500 Anchorage, AK 99503-2633 (907) 644-2000 5 We propose to conduct this work under the terms and conditions of our existing Master Services Agreement, MSA 10002469. If IPEC is successful in the pursuit of grant funding for this project, we look forward to negotiating a contract scope and budget with you. Please contact Paul Berkshire (907-360-1015) if you have any questions about the technical aspects of this proposal. Thank you for this opportunity to continue our support of IPEC’s important mission to serve the power needs of rural Southeast Alaska communities Sincerely, HDR ALASKA, INC Mark Dalton Senior Vice President Attachment Inside Passage Elctric Cooperative Water Supply Creek Hydro Project Design Estimate April 2020 4/23/2020 QA/QC PM/Civil Civil/Structural Elec/Mech Civil Design ACAD EIT Structural Permitting Accounting Admin Total Other Const Air Food &Total Total Sub-Tasks $290 $304 $242 $160 $141 $102 $91 $123 $154 $118 $71 Labor Subs Expense Materials Travel Lodging Mileage Direct Costs Services Project Management Meetings 8 $2,428.42 $200 $200.00 $2,628 Schedule 8 4 $3,395.84 $0.00 $3,396 Progress reports 8 4 40 4 $8,388.48 $0.00 $8,388 General 24 $7,285.25 $0.00 $7,285 Permitting USACE Permit 1 4 $20 60 $12,813.95 $0.00 $12,814 ADF&G Title 16 Permit 1 4 40 $7,683.71 $0.00 $7,684 ADNR Water Rights Permit 1 4 40 $7,683.71 $0.00 $7,684 Final Design Site Visits 72 $17,413.63 $3,000 $1,200 $383 $4,582.80 $21,996 Structural Drawings & Calcs 16 280 80 80 80 $99,075.58 $0.00 $99,076 Road and pipeline Drawings & Calcs 12 140 80 80 $55,895.81 $90,000 $90,000.00 $145,896 Bridge Drawings & Calcs 4 40 80 $16,664.58 $0.00 $16,665 Electrical Drawings & Calcs 4 16 120 120 $36,516.35 $0.00 $36,516 Specifications 8 160 80 80 40 $63,976.19 $0.00 $63,976 Cost Estimate 8 16 8 $7,470.08 $0.00 $7,470 Review Meeting 8 16 $6,298.11 $850 $220 $128 $1,197.60 $7,496 Energy Estimate 2 20 $5,416.45 $0.00 $5,416 Bidding Advertise for Turbine/Generator 8 $1,934.85 $0.00 $1,935 Turbine/Generator 16 8 $5,152.77 $0.00 $5,153 Summary 57 68 752 216 200 220 240 80 140 40 44 $365,494 $90,000 $0 $0 $3,850 $1,420 $710 $95,980 $461,474 Page 1