LOCK AND DAM 2 Joint Seal Repair_SOW_final.docx

LOCK AND DAM 2

Joint Sealant Replacement

SCOPE OF WORK

1. GENERAL. The Contractor shall provide all labor and material and perform all operations necessary to root out and replace all existing exterior flexible joint sealant material between building panels and around all doors, windows and louvers on the exterior of the following buildings:

The Central Control Station, Lower Control Stand, and Pump House at Lock and Dam 2

1.1 REFERENCES. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic Designation Only.

ASTM INTERNATIONAL (ASTM)

ASTM C920 (2018) Standard Specification for Elastomeric Joint Sealants

U.S. ARMY CORPS OF ENGINEERS

EM 385-1-1 (2024) Safety and Health Requirements Manual

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA) 40

CFR 261 Identification and Listing of Hazardous Waste 49 CFR 171-178 Hazardous Materials Regulations

1.2 SUBMITTAL PROCEDURES. The Contractor shall submit all required pre-construction submittals to the Contracting Officer prior to ordering any material or commencing any construction operations. The Contractor shall allow 10 working days for Government review of all submittals. Submittals coded with a,a “G” in the submittal list shall be submitted for Government Approval (GA). All other submittals shall be submitted to the Government Forfor Information Only (FIO). All submittals shall be submitted in an electronic .pdf format, andformat and shall be submitted with a complete USACE Form 4025. All submittals shall be submitted to the Contracting Officer, or their designated representative, via email. The Contractor shall allow seven working days for review of any resubmittals which are submitted as the result of the initial submittal being disapproved.

1.2.1 PRE-CONSTRUCTION SUBMITTAL LIST:

ENG Form 6293 Accident Prevention Plan (APP); G Activity Hazard Analysis (AHA); G Submittal Register; G Pre-Project Staging Area and Work Area Survey Report (Photos); FIO Safety Data Sheets, FIO Solid Waste Disposal Facility; FIO Joint Sealant Material; G Joint Sealant Material Color; G Backer Rod Material; FIO Joint Sealant Manufacturer’s Installation Instructions; FIO

1.2.2 SUBMITTAL CONTROL. Within 7 calendar days after notice to proceed, the Contractor shall submit to the Contracting Officer for review and approval, a submittal register in electronic format listing and scheduling all items required to be furnished for review by the Government. Primary responsibility for submittals shall rest with the Contractor. The Contractor shall furnish submittals for all deviations from the specifications.

1.3 SAFETY. The Contractor shall follow all applicable OSHA, state, and local laws and regulations relating to workplace safety. In addition, the Contractor shall compare OSHA, state, and local laws and regulations to the requirements found in USACE EM 385-1-1 and ensure all activities and operations conform to the most stringent requirement. No separate payment will be made for the work required in this paragraph.

1.3.1 ACCIDENT PREVENTION PLAN. The Contractor shall prepare the mandatory ENG Form 6293 Accident Prevention Plan (APP) for Government approval. The APP must be site specific. The Government considers the Prime Contractor to be the “controlling authority” for all work site safety and health of the subcontractors. Contractors are responsible for informing their subcontractors of the safety provisions under the terms of the contract and the penalties for non-compliance. The APP must be signed by an officer of the firm (Prime Contractor senior person), the individual preparing the APP, and the on-site superintendent.

1.3.2 ACTIVITY HAZARD ANALYSIS. Before beginning each activity, task or definable feature of work involving a type of work presenting hazards not experienced in previous project operations, or where a new work crew or subcontractor is to perform the work, the Contractor performing that work activity must prepare an Activity Hazard Analysis (AHA). AHAs shall be signed by the on-site superintendent and the foreman performing the work. Format the AHA in accordance with EM 385-1-1. Submit the AHA for review and approval at least 10 days prior to the start of each activity. The Government reserves the right to require the Contractor to revise and resubmit the AHA if it fails to effectively identify the work sequences, anticipated hazards, site conditions, equipment, materials, personnel, and the control measures to be implemented.

1.4 WORK RESTRICTIONS. The Contractor shall work only during Lock and Dam 2 regular business hours of 0700-1700, Monday through Friday, excluding Federal Holidays. If the Contractor wishes to work outside these hours a request must be submitted to the Contracting Officer to do so at least 3 days in advance. The Contractor shall only work on one face of the building at a time. The Contractor shall not block all building entrances at once. Anytime the Contractor expects to block Lock 2’s Central Control Station entrances, they shall coordinate with the lockmaster no less than 3 days prior. The Contractor shall stage their operation so only a minimum amountnumber of joints are exposed at one given time.

1.5 COORDINATION.

1.5.1 OTHER CONTRACTS. The contractor shall coordinate with any other contractors that have ongoing work at Lock and Dam 2.

1.6 PHYSICAL LOCATION AND CONTACT INFORMATION. Lock and Dam 2 is located near Hastings, Minnesota in Dakota County, Minnesota. It is on the right descending bank of the Upper Mississippi River. The Lockmaster is Steve Heidbrider (ph. 651-290-5826). The mailing address is:

Lock and Dam No. 2 1350 Lock and Dam Road Hastings, MN 55033

1.7 MEASUREMENT AND PAYMENT. The payment provided for in the contract shall constitute full compensation for furnishing all materials and for performing all work required under the contract in a complete and acceptable manner. The contract work shall include providing equipment, tools, supplies, labor, supervision, incidental materials, quality control, environmental protection, meeting safety requirements, and performing all work required for which separate payment is not otherwise provided. Compensation for all work shown, specified, or essential to completion of the project (whether or not the specific material or operation is indicated) shall be included in the price. The payment provided for in the contract includes compensation for all risk, loss, damage, and expense arising out of the nature of the work or its prosecution, subject to conditions of the contract. Payment for each contract line item will constitute full compensation for furnishing the materials and constructing the work complete in place as specified.

1.7.1 BONDS (Performance and Payment). Payment will be made for Performance and Payment Bonds required by this contract in accordance with CONTRACT CLAUSE 52.232-5 PAYMENTS UNDER FIXED-PRICE CONSTRUCTION CONTRACTS. Contract line item for Bonds shall be paid for on a per job basis. Comment by Frank-Scheierl, Sharon M CIV USARMY CEMVD (USA): Not required:

IAW FAR 28.102-1(a) performance and payment bonds are required for construction exceeding $150K. Language added for requirements exceeding $35K but not $150K Comment by Knutson, Benjamin T CIV (USA): Deleted bond section. Comment by Frank-Scheierl, Sharon M CIV USARMY CEMVD (USA): Please review comment again, and update section.

1.7.1.1

1.7.0.1 INSPECTION . All joints will need to be inspected prior to sealant being placed in the joint to assure the complete removal of old material.

1.7.2 UNIT PRICE PAYMENT ITEMS. Payment for work of this contract on which the contract unit price payments will be made are listed in the attached BID SCHEDULE and described below. The unit price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, equipment, and performing any associated quality control, environmental protection, meeting safety requirements, tests and reports and for performing all work required for each of the unit price items.

1.7.2.1 REMOVAL AND REPLACEMENT OF EXISTING JOINT SEALANT.

Payment will be made for furnishing all materials, equipment and labor and performing all operations necessary for the removal and replacement of the existing joint sealant as specified. The removal and replacement of joint sealant shall be measured in linear feet. Access equipment is incidental to this payment item.

1.7.2.2 INVOICING PROCEDURE. The Contractor shall send copies of all project related invoices to Steve Heidbrider (see section1.6 for contact information) as well as the U.S.A.C.E. Finance Center at the address seen below.

U.S.A.C.E Finance Center 5722 Integrity Dr.

Millington, TN 38053

1.8 TEMPORARY CONSTRUCTION FACILITIES. The comfort station, which is outside the secure area and open to the public, is available for contractor use. to tThe comfort station facilities include toilets, hand washing facilities, and drinking water. Contractor personnel will not be allowed to use restroom facilities in the lock house. The Contractor shall haul away any waste or debris generated from the project. The Contractor may use the existing Government water service for use in constructing the project features. The Contractor shall coordinate with the Lockmaster for hydrant and hose bib locations after contract award. The Government makes no guarantee that the available water pressure will be sufficient for the Contractor’s operation. No Contractor parking will be allowed on the grass. A bulletin board will not be required. A contractor job trailer and government field office are not required.

1.9 STAGING AREA. Lock and Dam 2: the contractor can coordinate with the Lockmaster Steve Heidbrider for areas available for parking and staging.

1.10 ENVIRONMENTAL PROTECTION. The Contractor shall minimize environmental pollution and damage that may occur as the result of construction operations. The environmental resources within the project boundaries and those affected outside the limits of permanent work shall be protected during the entire duration of the contract. The Contractor shall be responsible for any delays resulting in failure to comply with any Federal, State, or Local environmental laws and regulations. No separate payment will be made for work relating to environmental protection.

The Contractor is responsible for payment of all fines/fees for violations or non-compliance with Federal, State, regional, and local laws and regulations.

1.11 DEFINITIONS.

1.11.1 Environmental pollution and damage is defined as the presence of chemical, physical or biological elements or agents which adversely affect human health or welfare; unfavorably alter ecological balances of importance to human life; affect other species of importance to humankind; or degrade the environment aesthetically, culturally and/or historically.

1.11.2 Environmental Protection is defined as the prevention/control of pollution and habitat disruption that may occur to the environment during construction. The control of environmental pollution and damage requires consideration of land, water, and air; biological and cultural resources; and includes management of visual aesthetics; noise; solid chemical, gaseous, and liquid waste; as well as other pollutants.

1.11.3 Contractor Generated Hazardous Waste is defined as material that if abandoned or disposed may meet the definition of hazardous waste. These waste streams would typically consist of materials brought on site by the Contractor to execute work but are not fully consumed during the course of construction. Examples include, but are not limited to, excess paint thinners, waste thinners, excess paints, excess solvents, or waste solvent.

1.12 SAFETY DATA SHEETS. In accordance with EM 385-1-1, a copy of the Safety Data Sheets (SDS) and the maximum quantity of each hazardous material to be on site at any given time shall be submitted to the Contracting Officer for information only.

1.13 PROTECTION OF FEATURES. This paragraph supplements the Contract Clause 52.236-9 PROTECTION OF EXISTING VEGETATION, STRUCTURES, EQUIPMENT, UTILITIES, AND IMPROVEMENTS. Prior to start of any onsite construction activities, the Contractor and the Contracting Officer shall make a joint condition survey and take pre-project photographs of the Contractor’s Staging area and the Contractor’s work area. Immediately following the survey, the Contractor shall prepare a brief report including the pre-project photos along with the condition of trees, shrubs and grassed areas immediately adjacent to the site of work and adjacent to the Contractor's assigned storage area and access route(s), as applicable. This survey report shall be signed by both the Contractor and the Contracting Officer upon mutual agreement as to its accuracy and completeness. The Contractor shall protect those environmental features included in the survey report and any indicated on the drawings, regardless of interference which their preservation may cause to the Contractor's work under the contract.

1.14 SOLID WASTES. Solid wastes shall be placed in containers which are emptied on a regular schedule. Handling, storage, and disposal shall be conducted to prevent contamination. Segregation measures shall be employed so that no hazardous or toxic waste will become co-mingled with solid waste. The Contractor shall transport solid waste off the construction site and dispose of it in compliance with Federal, State, and local requirements for solid waste disposal. A Subtitle D RCRA Resource Conservation and Recovery Act ppermitted landfill shall be the minimum acceptable off-site solid waste disposal option. The Contractor shall verify that the selected transporters and disposal facilities have the necessary permits and licenses to operate. The Contractor shall submit the name and location of the solid waste disposal facility to the Contracting Officer for information only.

1.15 CHEMICALS AND CHEMICAL WASTES. Chemicals shall be dispensed ensuring no spillage to the ground or water. Periodic inspections of dispensing areas to identify leakage and initiate corrective action shall be performed. Chemical waste shall be collected in corrosion resistant, compatible containers. Collection drums shall be monitored and removed to a staging or storage area when contents are within 6 inches of the top. Wastes shall be classified, managed, stored, and disposed in accordance with Federal, State, and local laws and regulations.

1.16 CONTRACTOR GENERATED HAZARDOUS WASTES/EXCESS HAZARDOUS MATERIALS. Hazardous wastes are defined in 40 CFR 261, or261 or are as defined by applicable State and local regulations. Hazardous materials are defined in 49 CFR 171 - 178. The Contractor shall, at a minimum, manage and store hazardous waste in compliance with 40 CFR 262. The Contractor shall take sufficient measures to prevent spillage of hazardous and toxic materials during dispensing. The Contractor shall segregate hazardous waste from other materials and wastes, shall protect it from the weather by placing it in a safe covered location, and shall take precautionary measures against accidental spillage. The Contractor shall be responsible for storage, describing, packaging, labeling, marking, and placarding of hazardous waste and hazardous material in accordance with 49 CFR 171 - 178, State, and local laws and regulations. The Contractor shall transport Contractor generated hazardous waste off the construction site in accordance with the Environmental Protection Agency and the Department of Transportation laws and regulations. The Contractor shall dispose of hazardous waste in compliance with Federal, State and local laws and regulations. Spills of hazardous or toxic materials shall be immediately reported to the Contracting Officer. Cleanup and cleanup costs due to spills shall be the Contractor's responsibility. The disposition of Contractor generated hazardous waste and excess hazardous materials are the Contractor's responsibility.

1.17 POST CONSTRUCTION CLEANUP. The Contractor shall clean up all areas used for construction in accordance with Contract Clause 52.236-12 CLEANING UP

1.18 . The Contractor shall, unless otherwise instructed in writing by the Contracting Officer, obliterate all signs of temporary construction facilities such as haul roads, work area, structures, foundations of temporary structures, stockpiles of excess or waste materials, and other vestiges of construction prior to final acceptance of the work.

1.19 SCHEDULE. The Contractor shall complete the required demolition and installation of the joint sealant no later than 1 Oct 2025.

2. PRODUCTS.

2.1 BACKER ROD. The contractor shall use backer rods of the appropriate size for the gap between panels or rough opening and door, window, or louver frame. The backer rod should shall be 25 to 50 percent larger than the joint. The Contractor shall submit a catalog cut to the Contracting Officer for information only.

2.2 JOINT SEALANT. The contractor shall use a joint sealant product that is compatible with masonry construction. The product shall conform to ASTM C920 Class 25. The sealant shall provide movement between concrete verticals panels or brick exterior façade of +/- 25%. The joint sealant shall be non-shrink and non-sag appropriate for its intended application (horizontal or vertical). The color of the new joint sealant shall match the color of the existing joint sealant. Surface preparation and installation requirements shall follow the manufacturer’s recommendations and include backer rod type, size and placement depth, conditions that warrant the use of a primer, and temperature range for optimum application.

2.2.1 The contractor shall submit documentation from the sealant manufacturer showing compliance with ASTM C920 Class 25.

2.2.2 The contractor shall submit documentation indicating the final cured color of the joint sealant for Government Approval.

2.2.3 The contractor shall submit the installation instructions from joint sealant manufacturer for information only.

3. EXECUTION.

3.1 DEMOLITION. The Contractor shall route out and replace any existing flexible vertical surface joint material between building panels and around all windows and doors and louvers, as well as the vertical control and expansion joints at Lock 2. The Contractor shall take any necessary precautions to avoid damage to existing items that are to remain in place, to be reused, or to remain the property of the government. The Contractor shall sufficiently clean and resurface the joint according to the joint sealant manufacturer’s instructions.

3.2 WORKMANSHIP.

3.2.1 INSTALLATION. Do not use sealant that has exceeded its shelf life or has jelled and cannot be discharged in a continuous flow from the sealant gun. Apply sealants in accordance with the manufacturer’s written instructions with a gun having a nozzle that fits the joint width. Work sealants into the joint to fill the joints solidly without air pockets. Tool sealant after application to ensure adhesion. Apply sealant uniformly smooth and free of wrinkles. Upon completion of sealant application, roughen partially filled or unfilled joints, apply additional sealant, and tool smooth. Apply sealer over sealants in accordance with the sealant manufacturer’s written instructions.

3.2.2 PROTECTION AND CLEANING. Protect areas adjacent to joints from sealant smears. Masking tape may be used for this purpose if removed 5 to 10 minutes after the joint is filled and no residual tape marks remain.

3.2.3 FINAL CLEANING. Upon completion of sealant application remove remaining smears and stains and leave the work in a clean and neat condition. Immediately remove fresh sealant that has been smeared on adjacent masonry, rub clean with solvent, and remove solvent residue in accordance with sealant/solvent manufacturer’s printed instructions. Allow excess sealant to cure for 24 hours then remove by wire brushing or sanding. Remove resulting debris.

3.2.4 FINAL APPEARANCE. Each joint shall be tooled to a neat and smooth visual appearance. The Contracting Officer reserves the right to reject acceptance of portions of sealant filled joints or entire sealant filled joints if they do not meet a reasonable level of workmanship. Joint sealant that appears rough, is not neatly tooled, appears wrinkled, is not completely adhered to the masonry, or if pinholes are present, will not be measured for payment and shall be completely removed and re-installed at the Contractor’s expense.

3.2.5 WEEPS. Existing weeps around windowsills or as part of a masonry cavity wall shall be replaced in kind, if present. In no case will open voids be allowed in lieu of providing a fiber weep material. Replacement weeps shall match existing.