A04_Attachment_01_Statement_of_Work_for_Squaw_Crooked_et_al_June_2021_ZJ.docx
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- AZ-AZ FWCO-BARRIER DESIGN & ENGINEERING
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- 140F0122R0013
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Statement of Work for A&E Services for Construction-Ready Designs for: Squaw and Crooked Creeks, and Barrier Identification and Conceptual Assessment of Barriers on Six Streams
PURPOSE AND BACKGROUND
The US Fish and Wildlife Service (USFWS) is seeking assistance with multiple tasks associated with construction of conservation fish barriers on White Mountain Apache Tribal Lands. Anticipated tasks include final design of a fish barrier on Squaw Creek based on an existing conceptual design, conceptual and final designs for Crooked Creek, and reconnaissance of six potential barrier sites on six streams with associated , development of conceptual level designs, cost estimates, and provide information and analysis for permitting for each. Comment by Jackson, Zachary: This may not be perfect yet, trying to clarify that we need all those things for the SIX.
STATEMENT OF WORK
I. Squaw Creek Final Design - The existing Squaw Creek fish barrier is no longer functioning functions to conserve and protect endangered threatened Apache trout. The barrier is to be replaced with a new barrier located just upstream of the current barrier. The new barrier will be a configuration of a fish jump barrier located just upstream of the existing barrier. Designs should include removal of tThe old barrier is to be removed to improve hydraulics downstream of the new barrier and there will be a need foralong with stream stabilization in this area as needed to support the new barrier. The conceptual level design and fish passage analysis was provided by a contractor. The project requires final design and development of construction documents, specifications and quantities/costs. USFWS seeks final design and construction documents for a jump barrier, channel grading and removal of the existing barrier with specifications including quantities and costs. All deliverables will be focused on providing biddable, construction ready documentation for implementation of the barrier installation. It is expected that some aspects of the design and construction will be a function of environmental clearances and traffic requirements stipulated by the White Mountain Apache Tribe.
Specific tasks included are: Comment by Jackson, Zachary: Do these need to be called out separately from the numbered tasks below? Or just make sure all elements are included below?
· Consult with geotechnical firm to develop specifications for potential earthen berms not connected to bedrock below the surface
· Utilize existing data, the conceptual level design and environmental clearance data to finalize the design parameters, materials, costs and construction sequence
· Develop construction plans and specifications
· Determine materials and estimates of quantities as well as opinion of probable costs to aid in construction bid evaluation.
· Contractor/awardee will provide a pre-bid construction walk through with prospective bidders and will provide a final basis of design memorandum, explaining the design, construction sequence and other important features of the barrier. If specific maintenance is needed for the barrier, it can be explained here as well. USFWS anticipates that the geotechnical work and conceptual level design work do not need to be expanded for this project and additional funding for those items is not anticipated.
Task 1: Review conceptual design and develop an analysis. Final design analysis. Conduct a value engineering analysis for materials and methods of construction to ensure cost effectiveness Comment by Jackson, Zachary: Probably just my ignorance, but it seems odd to start with Final design analysis on Task 1, then Task 2 is 60% plans. I’m wondering if this wording should be modified or even deleted or if this should be a later task? I’m just not sure where value engineering fits in to the process… Maybe Task 1 is Conceptual design analysis? Or maybe just “Conduct a value engineering analysis for materials and methods of construction to ensure cost effectiveness? Or maybe it’s perfect as is.
Task 2: 60% Plans, Specifications and Engineer’s Opinion of Probable Costs. Providing: Grading – site grading and excavation design; Structural- structural analysis of barrier sliding and overturning moments; Specifications- draft specifications for construction with enough detail to allow early stage cost estimation; Cost estimate- conceptual level cost estimate for review.
Task 3: 100% Plans, Specifications, Engineer’s Opinion of Probable Costs and bid documents as needed. Provide a basis of design report. Providing: Value engineering (cost reduction review) – examination of material substitutions and design changes that could provide cost or time savings during construction. This may involve additional work with geotechnical investigators and professional contractors to look at specific practices or change locations; Final design sheets- incorporation of review comments and value engineering analysis to final construction sheets and notes. Complete construction ready plans suitable for future construction bidding; Final specifications- (table of activities and estimated quantities of material in cubic yards to be used as fill or to be excavated within waters and a map showing the preliminary jurisdictional delineation of the project area with: potential waters; ordinary high water mark, and the barrier site indicated in lat/long decimal degrees) to include all site specific parameters determined from NEPA, if available; Materials and Quantities estimates; Engineer’s assessment of probable cost based on site location and accessibility; Bid Tab – tabulated bid sheet for receiving and reviewing bids; Pre-bid Assistance – assistance during construction bid process. Comment by Jackson, Zachary: One of the specific things that they need to provide is a table of activities and estimated quantities of material in cubic yards to be used as fill or to be excavated within waters of the US. Another is a map showing the preliminary jurisdictional delineation of the project area with: potential waters of the US; ordinary high water mark, and the barrier site indicated in lat/long (decimal degrees).
Task 4: Provide a Pre-bid site visit and responses to questions from potential vendors.
II. Crooked Creek Final Design - The Crooked Creek fish barrier is no longer functioningin danger of failing to conserve and protect endangered Apache trout. The barrier is to be replaced with a new barrier located at near the current barrier site. The new barrier will be a configuration of a fish jump barrier built on an existing bedrock outcrop. The project requires a conceptual level design that can be reviewed for cost and permitting feasibility, followed by final design and development of construction documents, specifications and quantities/costs. All deliverables will be focused on providing biddable, construction ready documentation for implementation of the barrier installation. It is expected that some aspects of the design and construction will be a function of environmental clearances and traffic requirements stipulated by the White Mountain Apache Tribe.
Specific tasks included are: Comment by Jackson, Zachary: Do these need to be called out separately from the numbered tasks below? Or just make sure all elements are included below?
· Consult with geotechnical firm to develop specifications for potential earthen berms not connected to bedrock below the surface
· Site visit to collect detailed topographic data for base map and permitting needs.
· Develop conceptual design alternatives for review and comment by USFWS and WMAT
· Utilize existing data, the conceptual level design and environmental clearance data to finalize the design parameters, materials, costs and construction sequence
· Develop construction plans and specifications
· Determine materials and estimates of quantities as well as opinion of probable costs to aid in construction bid evaluation.
· Provide a pre-bid construction walk through with prospective bidders and final basis of design memorandum, explaining the design, construction sequence and other important features of the barrier. If specific maintenance is needed for the barrier, it will be explained here as well. USFWS anticipates that some geotechnical work is required and will be provided or sub contracted to qualified personnel by the contractor/awardee.
Task 1: Site visit, topographic survey, and geotechnical sampling - 15% Design Report: Barrier site evaluation, that including, reach survey forto locate ideal barrier location, evaluate construction Comment by Jackson, Zachary: This sounds like what we want for the “SIX” streams, not Crooked. I mean, these things probably need to be covered to, but I’m thinking that they can be covered without producing a design report at this design level. I tried to edit to keep this as Task 1, but I’m wondering if this and Task 2 should be combined.
access, review of the hydraulics and hydrology, the jump height required, and develop concept construction cost estimate. Develop a conceptual design analysis.
Task 2: 30% Conceptual design analysis. Develop conceptual level designs and costs for review and comment by stakeholders. Site investigation, providing: Determination of access points, construction parameters, site suitability and geotechnical (depth to bedrock and bedrock suitability; Hydrology- development of estimates of peak discharge for the site to be utilized for design. Reassess existing Q2, Q5, Q10, Q25, Q50, and Q100 for new sites (estimates are minimum requirements); Geomorphology- determination of suitability, stability of the site for an impoundment, determination of sediment transport considerations, and requirements for barrier shape and height; Hydraulics- Analysis of tailwater hydraulics related to fish swimming and jumping ability at design flows to determine design barrier height; Fish jumping ability-modeling fish jumping ability under specific hydraulic conditions to determine proposed barrier effectiveness; Deploying a Geotechnical crew and design engineer Deliverables to include: 30% Design Report and Geotechnical Report describing depth of bedrock if pertinent, suitability of bedrock or soil for anchoring or bearing weight of the barrier and other key design considerations
Task 3: 60% Plans, Specifications and Engineer’s Opinion of Probable Costs. Providing: Grading – site grading and excavation design; Structural- structural analysis of barrier sliding and overturning moments; Specifications- draft specifications for construction with enough detail to allow early stageearly-stage cost estimation; Cost estimate- conceptual level cost estimate for review
Task 4: 100% Plans, Specifications, Engineer’s Opinion of Probable Costs and bid documents as needed. Provide a basis of design report. Providing: Value engineering (cost reduction review) – examination of material substitutions and design changes that could provide cost or time savings during construction. This may involve additional work with geotechnical investigators and professional contractors to look at specific practices or change locations; Final design sheets- incorporation of review comments and value engineering analysis to final construction sheets and notes. Complete construction ready plans suitable for future construction bidding; Final specifications- (table of activities and estimated quantities of material in cubic yards to be used as fill or to be excavated within waters and a map showing the preliminary jurisdictional delineation of the project area with: potential waters; ordinary high water mark, and the barrier site indicated in lat/long decimal degrees) to include all site specific parameters determined from NEPA, if available; Materials and Quantities estimates; Engineer’s assessment of probable cost based on site location and accessibility; Bid Tab – tabulated bid sheet for receiving and reviewing bids; Pre-bid Assistance – assistance during construction bid process. Comment by Jackson, Zachary: One of the specific things that they need to provide is a table of activities and estimated quantities of material in cubic yards to be used as fill or to be excavated within waters of the US. Another is a map showing the preliminary jurisdictional delineation of the project area with: potential waters of the US; ordinary high water mark, and the barrier site indicated in lat/long (decimal degrees).
Task 5: Provide a Pre-bid site visit and responses to questions from potential vendors.
III. Barrier Assessment and Concept Development – There are six candidate streams for construction of barriers that have not been assessed for suitable barrier sites or types. Awardee will visit each stream, conduct a visual assessment of suitable sites within a reach proposed by USFWS. Once the best suitable sites have been identified a barrier type and rough dimension will be determined. A conceptual level cost for implementation at each site will be estimated along with potential construction logistics issues and impacts. A summary report will be provided to USFWS discussing the potential for each site, information needs for future work and providing a prioritization of feasibility for all the sites. Streams that will be surveyed include:
Little Bonito Little Diamond Ord Paddy Paradise Wohlenberg
It is assumed that scheduling will allow for two of these sites to be assessed each day of field work, reducing costs for travel.
Task 1: Barrier site evaluations (6). Provide: reach survey for ideal barrier location, construction access, review of the hydraulics and hydrology, the jump height required, and conceptual-level construction cost estimates. Provide summary report and recommendations. (Little Bonito, Ord, Little Diamond, Ord, Paddy, Paradise and Wohlenberg Creekscreeks). Multiple field assessments per trip.
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