Crane Lake Dam Rehabilitation

Form / Attachment / Pricing Sheet

This document, "SECTION B SCHEDULE OF ITEMS," provides the "BASE ESTIMATE" for the Crane Lake Dam Rehabilitation project. It details the pay items, descriptions, estimated quantities, units, and total prices for the work to be performed.

• Pay Items: Specific numbered codes for each task or material (e.g., 151, 204, 610).
• Description: A brief explanation of the work or material (e.g., Mobilization and Demobilization, Excavation & Embankment, Horizontal Drains).
• Estimated Qty: The anticipated quantity for each pay item.
• Unit: The unit of measure for the quantity (e.g., LS for Lump Sum, CY for Cubic Yards, SF for Square Feet, SY for Square Yards, LF for Linear Feet, ACRE).
• Total Price: A field for bidders to enter their proposed price for each item.

This schedule is critical for bidders as it forms the basis of the bid. Bidders must carefully review each item, estimate their costs, and enter their proposed pricing in the "Total Price" column. This document directly impacts proposal preparation and will be used to evaluate bids based on the total estimated cost.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the Crane Lake Dam project (12445526Q0047).

• Bid Item Units: Units for bid items in Section B will be revised to match the "Estimated Qty" column. Estimated quantities are informational; a lump sum is required for the bid form. Contract quantities will only be adjusted for original design errors of 15% or more.
• Bid Due Date Extension: The Government has extended the bid due date by two weeks, from the original 6/11 to 6/25.
• Use of Lake Water: The use of water from the lake for soil conditioning/hydration and concrete-related applications is permitted.
• Reuse of Salvaged Material: Salvaged rock or demolished concrete material may be reused within the embankment/bank slopes, as indicated in the scope, supplemental conditions, and plan sheets (e.g., X-04).
• Optional Bid Items (OBIs): There are no OBIs. Items 207, 251, and 252 are not referenced in the project specifications or drawings. Optional Bid Item 204's quantity was clarified, and the SOI and associated documents were revised with the most recent modifications sent for the addendum.

The clarifications address unit definitions, extend the bid due date, and confirm the use of lake water and salvaged materials. They also clarify the status and scope of optional bid items.

Form / Attachment / Pricing Sheet

This document provides construction details for anchor trenches, specifically illustrating the "Typical Anchor Trench" and "Batten Bar Detail." It serves as a visual guide for contractors on how to install these components.

• Typical Anchor Trench: Details the cross-section of an anchor trench, including backfill material (concrete or non-erodible soil), HydroTurf® CS, and trench dimensions (1.5' minimum depth and width).
• Batten Bar Detail: Shows the connection of the HydroTurf® CS to the underlying layers using a stainless steel batten bar, anchor bolt, and neoprene sponge.
• Notes: Provides critical instructions regarding verification of drawing revisions, proper installation of geosynthetic components, termination of HydroTurf® CS, and requirements for energy dissipation and erosion control.
• References: Mentions supplemental specifications (Section 628 for rock anchor trenches and Section 603 for nut/washer spacing).

This attachment is crucial for bidders to understand the specific construction methods and material requirements for anchor trenches. It directly impacts how the work will be performed, the materials to be used, and the quality standards expected. Bidders must pay close attention to the drawing details and the accompanying notes to accurately estimate costs and plan their execution strategy.

Form / Attachment / Pricing Sheet

This document provides technical details and drawing notes for the installation of "HydroTurf® CS Typical Anchor Trench Termination." It serves as a guide for contractors regarding the proper installation and material requirements for this specific component.

• Drawing Notes: Details critical installation instructions, including:
  • Verifying the latest revision of the drawing from www.watershedgeo.com.
  • Ensuring "HydroTurf® CS" is in intimate contact with the anchor trench walls and bottom, with wrinkles and bunching addressed.
  • Proper handling of geosynthetic components during concrete backfill.
  • Standard industry techniques for vibrating concrete.
  • Termination requirements for "HydroTurf® CS" (minimum of 1/4 width of the trench bottom).
  • Implementation of energy dissipation and erosion/sediment control at downstream terminations.
  • The Engineer of Record's role in determining anchor trench dimensions, materials, and expansion joint usage.
• Diagram: Illustrates a cross-section of the anchor trench termination, showing "HydroTurf® CS," backfill material (concrete or soil), and trench dimensions.
• Product Information: Identifies the product as "HydroTurf® CS" and lists associated trademarks and patent information from Watershed Geo.

This attachment is crucial for bidders to understand the specific technical requirements and installation procedures for the "HydroTurf® CS" component. It outlines critical steps, material specifications, and responsibilities of the contractor and the Engineer of Record, directly impacting how this part of the project must be executed and potentially influencing cost and schedule estimations.

Form / Attachment / Pricing Sheet

This document provides detailed technical drawings illustrating the connection methods for HydroTurf® CS with a Batten Bar. It specifies the components and assembly for both vertical and horizontal connections.

• Vertical Connection: Details the attachment of HydroTurf® CS to a secondary engineered turf using a 1/2" x 2" closed-cell neoprene sponge (SC42-M) with neoprene adhesive, a batten bar, stainless steel anchor bolt, washer, and nut. It also shows optional caulking and a heat-weld engineered turf to primary layer.
• Horizontal Connection: Illustrates the connection of HydroTurf® CS using a 1/2" x 2" closed-cell neoprene sponge (SC42-M) with neoprene adhesive, a 4" x 2" stainless steel batten bar, washer, stainless steel anchor bolt, nut, and optional caulking.
• Components: Lists specific materials such as HydroTurf® CS, Neoprene Adhesive, Neoprene Sponge SC42-M, Batten Bar (stainless steel), Stainless Steel Anchor Bolt, Washer, Nut, and optional Caulking.

This attachment is crucial for bidders to understand the specific installation requirements and material specifications for the HydroTurf® CS system, particularly concerning how it is to be connected and secured using batten bars. It directly informs the technical approach and material sourcing for the opportunity.

Form / Attachment / Pricing Sheet

This document provides technical details and specifications for the HydroTurf® CS Spillway, including its plan, profile, and section views. It serves as a reference for the design and installation of spillway structures.

• Plan View: Illustrates the layout of the HydroTurf® CS Spillway, including anchor trench details and limits.
• Profile View: Depicts the elevation and slope of the spillway.
• Section View: Shows a cross-section of the spillway, detailing material layers such as HydroTurf® CS, subgrade, and backfill (compacted soil or 4000psi concrete).
• Dimensions: Key dimensions and minimum requirements are indicated for various components.
• Notes: Includes important information regarding drawing revisions, product trademarks, and disclaimers about reliance on the information without professional consultation.

This attachment is crucial for bidders to understand the specific design and material requirements for any spillway components related to the opportunity. It provides the technical basis for installation and compliance, impacting material selection, site preparation, and construction methods.

Form / Attachment / Pricing Sheet

This document, "Attachment 3 - Supplemental Specifications.pdf", provides modifications and additions to the original specifications for the Crane Lake Dam Rehabilitation project. It details changes to terms, definitions, abbreviations, scope of work, control of work, control of material, acceptance of work, legal relations, prosecution and progress, measurement and payment, soil erosion and sediment control, clearing and grubbing, removal of structures and obstructions, excavation and embankment, rock blasting, subsurface testing, reinforced soil slopes, structural plate structures, horizontal drains, roadside turf improvement material, and water control gates.

• Terms, Format, and Definitions: Updates to definitions and abbreviations, including the removal of references to TAR and the addition of new acronyms and abbreviations.
• Scope of Work: Defines improvements for drawing down water levels, clearing and removing organic material, recycling concrete structures, installing new conduits and level control structures, and regrading with Hydroturf CS.
• Control of Material: Specifies requirements for using material found in the work, including pulverizing concrete and lead-free aggregate testing.
• Acceptance of Work: Outlines conformity with contract requirements, visual inspection, and procedures for disputing government test results.
• Soil Erosion and Sediment Control: Details requirements for developing and implementing a soil erosion, sediment control, and dewatering plan.
• Excavation and Embankment: Provides detailed specifications for excavation, fill materials, foundation preparation, placement, compaction, and testing.
• Hydroturf CS System: Includes extensive specifications for the engineered turf component, geomembrane, installation, testing, repair, and infill.
• Water Control Gates: Specifies requirements for furnishing and installing water control gates.
• Roadside Turf Improvement Material: Details requirements for native vegetation seeding, including seed types, sources, and planting methods.
• Subsurface Testing Report: Includes boring logs and laboratory test results from SCI Engineering, Inc.

This document is crucial for bidders as it outlines specific technical requirements, material specifications, testing procedures, and installation methods that deviate from or supplement the original specifications. Understanding these supplemental specifications is essential for accurate bidding and successful project execution. It details critical aspects such as material sourcing, construction methods, quality control, and acceptance criteria for various components of the dam rehabilitation project, including the Hydroturf CS system and associated materials.

Amendment / Modification

This amendment (0001) to solicitation 12445526Q0047 incorporates changes, updates attachments, and extends the quote due date.

Key changes include:

• Extension of the quote due date from June 11, 2026, to June 25, 2026, by 1400 CT.

• Addition of line item 603 to account for separate payment and quantities for Batten Bar, and modification of quantities for Anchor Trench.

• Updates to Supplemental Specifications:

  • Added requirement for color blend (75% Green, 25% Tan) under section 261.03.A.2.
  • Deleted a non-applicable paragraph (261.05.02.3).
  • Added Section 603 for Batten Bar specifications.

• Revisions to plan sheets and attachments:

  • Plan Sheet BR-04: Utilizes steel bell and spigot rings for Low Pressure Reinforced Concrete Pipe.
  • Plan Sheet CD-02: Replaced spillway section B-1 and spillway profile C-1 details with updated drawing (Attachment 6).
  • Plan Sheet CD-03: Replaced Typical Anchor Trench detail with Attachment 9, showing extended engineered turf to the anchor trench bottom. Modified "Batten Bar Alternate To Trench Detail" to "Batten Bar Detail". Eliminated secondary layer of engineered turf and increased neoprene sponge thickness. Added reference to Supplementary Specification Section 603 for anchor spacing.
  • Attachment 8: Includes drawing HTCS TM02 25324 Batten Bar, detailing horizontal versus vertical installation requirements.
  • Attachment 10: Incorporated Q&As in response to received questions.

• Solicitation attachments and specifications.

• Line items related to Batten Bar and Anchor Trench.

• Supplemental Specifications sections 261.03.A.2, 261.05.02.3, and 603.

• Plan Sheets BR-04, CD-02, and CD-03.

• Attachments 6, 8, 9, and 10.

• The quote due date has been extended to June 25, 2026.

• Bidders must acknowledge receipt of this amendment.

• Updated attachments and specifications should be reviewed for proposal preparation.

Other / Unclassified

This document is a sign-in sheet from a pre-bid meeting for the Crane Lake Dam Rehabilitation project held on May 14, 2026. It lists attendees, their organizations, email addresses, and phone numbers.

This document is relevant to potential bidders as it provides contact information for companies and individuals who attended the pre-bid meeting. This can be useful for networking, identifying potential subcontractors or partners, and understanding the competitive landscape.

Form / Attachment / Pricing Sheet

This document, "SECTION B SCHEDULE OF ITEMS," provides the "BASE ESTIMATE" and an "OPTIONAL BID ITEM 1 ESTIMATE" for the Crane Lake Dam Rehabilitation project. It details the pay items, descriptions, estimated quantities, units, and unit prices for various construction tasks.

Base Estimate: Includes items such as mobilization, surveying, quality control, sampling and testing, soil erosion control, clearing and grubbing, removal of existing structures, excavation, modular retaining walls, engineered turf, reinforced subgrade, minor concrete structures, under drains, and horizontal drains.

Optional Bid Item 1 Estimate: Covers "PERMANENT SPILLWAY WITH ROCKERY AND VOID FILLED RIPRAP," including construction surveying, quality control, excavation, earthwork geosynthetics, riprap, rockery, and permanent turf establishment.

This schedule is crucial for bidders to understand the scope of work, estimate costs, and prepare their proposals. It outlines the specific pay items and quantities for both the base contract and a potential optional item, directly impacting bid preparation and pricing strategies.

Form / Attachment / Pricing Sheet

This document contains supplemental specifications for the Crane Lake Dam Rehabilitation project. It details modifications and additions to the original specifications, focusing on terms, definitions, scope of work, control of work, material control, acceptance of work, legal relations, prosecution and progress, measurement and payment, contractor quality control, soil erosion and sediment control, clearing and grubbing, removal of structures and obstructions, excavation and embankment, reinforced soil slopes, horizontal drains, roadside turf improvement material, and water control gates.

• Terms, Format, and Definitions: Updates to definitions and abbreviations, including the removal of references to TAR and the addition of FSAR, MSHA, NESC, and specific unit abbreviations. It also revises definitions for terms like "Bid Schedule," "Bridge," "Contractor," "Culvert," "Drawings," "Notice to Proceed," "Right-of-Way," and "Solicitation." New definitions for "Adjustment in Contract Price," "Change," "Forest Service," and "Neat Line" are added.
• Scope of Work: Revisions to sections 103.02, 103.03, 103.04, and 103.05, with additions to 103.01 detailing base bid improvements, including drawdown of water levels, removal of unsuitable material, removal and recycling of training walls, installation of a new conduit and level control structure, and regrading and installation of "Hydroturf CS" with specific concrete treatment.
• Control of Work & Material: Deletes subsections 104.01, 104.02, and 104.04, adding 104.06 regarding contractor use of roads. It also modifies 105.05 regarding the use of material found in the work and adds 105.07 concerning lead-free aggregate and rock sourcing and testing.
• Acceptance of Work & Legal Relations: Replaces subsection 106.01 with "Conformity with Contract Requirements" and revises 106.02 to "Visual Inspection." Section 107.05 is deleted.
• Prosecution and Progress: Section 108 is deleted entirely.
• Measurement and Payment: Modifies subsection 109.01 regarding measurement of work and decimal accuracy of quantities. It also adds a sentence to 109.02(b) regarding contract quantity adjustments and deletes subsections 109.06, 109.07, 109.08, and 109.09.
• Contractor Quality Control: Modifies section 153.02(a) regarding the Quality Control Manager (QCM).
• Soil Erosion and Sediment Control: Replaces subsection 157.03 with detailed requirements for a Soil Erosion, Sediment Control, and Dewatering Plan, including specific considerations for lake drawdown, material disposal, water level control, stormwater passage, temporary crossings, excavation, rock sawing, and pollution prevention.
• Clearing and Grubbing, Removal of Structures, Excavation and Embankment: Significant modifications and deletions are made across these sections, detailing specific procedures for material removal, disposal, excavation, foundation preparation, placement, moisture control, and compaction.
• Reinforced Soil Slopes, Horizontal Drains, Roadside Turf Improvement Material, Water Control Gates: These sections introduce new specifications or replace existing ones, detailing materials, installation, testing, and acceptance criteria for these components.

This document is crucial for bidders as it outlines significant changes and additions to the original project specifications. It details specific requirements for materials, construction methods, testing procedures, and acceptance criteria across various aspects of the Crane Lake Dam Rehabilitation project. Bidders must carefully review these supplemental specifications to accurately estimate costs, develop their project approach, and ensure compliance with all updated requirements.

Form / Attachment / Pricing Sheet

This document comprises detailed engineering drawings and plans for the Crane Lake Dam Rehabilitation project. It includes an index of all 25 sheets, providing a table of contents for the construction drawings, and specific details for various project components.

• Index of Sheets: Lists all 25 project drawings with sheet numbers, titles, and dates. Titles include "Coversheet," "Site Information," "Existing Road Slopes," "Control and Existing Grade," "Existing Wall Demolition Plan," "Proposed Grading Plan," "Centerline of Spillway Plan and Profile," "Level Control Plan and Profile," "Dam Centerline Plan and Profile," and various details for "Baffle Riser," "Impact Basin," and "Construction Details."
• Level Control Plan and Profile (Sheets C-03 & C-04): Shows existing and proposed grades, pipe profiles, and dam centerline.
• Baffle Riser Details (Sheets BR-01 through BR-04, BR-05, BR-06): Specifies dimensions, materials (steel channels, bolts, pipe sleeves), and construction methods for baffle risers.
• Impact Basin Details (Sheets IB-01 through IB-06): Provides comprehensive plans, elevations, sections, steel schedules, reinforcement details, concrete specifications, and components like headwalls, aprons, and wingwalls.
• Construction Details (Sheets CD-01 to CD-04): Outlines specific construction methods and materials for elements such as trash racks, filter drains, HydroTurf CS spillways, anchor trenches, and modular retaining walls.
• Steel Schedules: Detailed lists of required steel components, including type, size, quantity, and length.

These drawings are critical for bidders to understand the project's scope, technical requirements, and construction details. They are essential for accurately estimating costs, developing construction methodologies, and ensuring compliance with design specifications. Bidders must review these plans to grasp the precise scope of work related to structural components, materials, and installation procedures for the dam rehabilitation.

Form / Attachment / Pricing Sheet

This document is a "General Decision Number" which provides prevailing wage rates and fringe benefits for various construction trades in Missouri. It is intended to inform bidders about the minimum wage and benefit requirements for laborers and mechanics employed on federally funded or assisted construction projects.

• General Decision Numbers: Identifies specific wage determinations (e.g., MO20260001).
• Superseded Decisions: Indicates previous wage determinations that are no longer in effect.
• State and Counties: Specifies the geographic area covered by the wage determination.
• Construction Types: Delineates the types of construction the determination applies to (e.g., Heavy and Highway).
• Trade Classifications: Lists various construction trades (e.g., Carpenters, Electricians, Ironworkers, Laborers, Plumbers, Truck Drivers, Painters, Cement Masons).
• Rates and Fringes: Provides the prevailing hourly wage rate and fringe benefit rate for each classification and county.
• Modification Numbers and Dates: Indicates revisions and their effective dates.
• Footnotes and Classifications: Includes detailed descriptions of job classifications and any applicable premiums or special conditions.

This document is crucial for bidders to accurately estimate labor costs for their proposals. It ensures compliance with federal labor laws, specifically the Davis-Bacon Act, which mandates that laborers and mechanics employed on federal projects must be paid at least the locally prevailing wages and fringe benefits. Failure to comply can result in penalties and project delays. Bidders must review the rates applicable to the specific trades and counties relevant to their proposed work to ensure accurate cost estimation and compliance.

Solicitation / RFP / RFQ

This solicitation is for the "Crane Lake Dam Rehab" project located at the Mark Twain National Forest in Rolla, MO. The government requires the rehabilitation of the Crane Lake Dam, which is a high hazard recreational dam in poor condition and does not currently meet federal dam guidelines. The project aims to reduce the risk of loss of life or property destruction downstream.

The work includes, but is not limited to:

• Clearing and removing the upper layer of organic material unsuitable as embankment fill.

• Removing and recycling existing training walls and appurtenances.

• Installing a new conduit, level control structure, and appurtenances.

• Regrading and installing Hydroturf CS with penetrating catalyzed silicate concrete treatment armoring of the spillway and dam embankment.

• Contract Type: Firm Fixed-Price Contract.

• Period of Performance: July 1, 2026, to June 30, 2027.

• Estimated Value: Between $1,000,000 and $5,000,000.

• Commencement of Work: Anticipated to begin by July 1, 2026.

• Performance Period: 365 calendar days after Notice to Proceed.

• Quotes are due by June 11, 2026, at 2:00 PM CT.

• Quotes must be emailed to debra.brinn@usda.gov, christopher.malley@usda.gov, and PPS.proposals@usda.gov.

• Vendors must have an active entity registration in the System for Award Management (SAM).

• Award will be made to the responsible vendor whose quote is most advantageous to the Government, considering price and other factors.

• Evaluation Factors: Past Performance, Experience, Technical Approach, and Price.

• Award will not necessarily be made to the lowest-priced vendor.

• Period for acceptance of quotes: 60 calendar days.

• This solicitation does not appear to have specific set-aside requirements mentioned in the initial pages.

• The solicitation incorporates numerous FAR clauses by reference. Offerors are advised to review these clauses carefully.

• A site visit is scheduled. Details are provided in the document.

• Technical and price submissions must be separate documents.

• Questions are due by May 28, 2026.

Form / Attachment / Pricing Sheet

This document outlines the specific submittals required by the government for this opportunity, detailing the type of submittal, associated requirements (often referencing specific specification numbers), the due date or occurrence, and the relevant pay item. It serves as a checklist for bidders to ensure all necessary documentation is provided at the correct stages of the project.

• Submittals: Lists various documents and reports required, such as As-Built Drawings, Aggregate Testing, Acceptance of Work, Spill Prevention Plans, Surveying Technology Statements, Operations Reports, Construction Schedules, Soil Erosion Plans, Soil Test Results, Production Certifications, Coffer Dam Drawings, Backfill Testing, Baffle Riser details, Impact Basin details, Culvert Excavation & Backfill, MSE Walls, Certificates of Compliance, Concrete Mix Designs, Filter Material Gradations, and Shop Drawings.
• Requirements: References specific specification numbers (e.g., FP-14, Supplemental Specifications) that bidders must adhere to for each submittal.
• Due / Occurrence: Specifies when each submittal is due (e.g., prior to final inspection, before incorporation of material, 2-days before start of work, daily, weekly, at shipment, prior to production) or how often it occurs.
• Pay Item: Links the submittal to the corresponding contract pay item.

This attachment is critical for bidders to understand the full scope of documentation and compliance activities required throughout the project lifecycle. It directly impacts proposal preparation by highlighting the need to plan for and resource these submittal activities. Failure to comply with these submittal requirements could affect project progress, payment, and overall contract performance.