Attachment.pdf

Kanopolis Dam and Reservoir Control Gate Replacement W912DQ-17-B-1010 Smoky Hill River, Marquette, Kansas

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 12 00.00 23

SPECIAL PROJECT REQUIREMENTS

08/04

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 Water Surface (Reservoir) Elevation

1.4 TOWER ACCESS AND IN-SITU PLAN

1.4.1 Safe Clearance Procedures

1.5 CONTROL GATE LOGISTICAL RESTRICTION

1.6 ROCK PAD ASSESSMENT AND MODIFICATION REPORT

1.7 EXISTING STRUCTURE EVALUATION

1.8 ON-SITE STORAGE OF GATES

1.9 HIGH WATER REPORT

1.10 EMERGENCY BULKHEAD OPERATIONAL RESTRICTION

1.11 PORTABLE CRANE

1.12 PEDESTRIAN BRIDGE UTILIZATION PLAN

1.13 COOPERATION AND COORDINATION WITH OTHERS

1.14 GOVERNMENT OPERATING EQUIPMENT

1.15 GOVERNMENT FURNISHED EQUIPMENT (GFE)

1.15.1 GFE Condition Report

1.15.2 Safety Railings

1.15.3 Pedestrian Bridge

1.15.4 Structural Floor Grating

1.15.5 Trolley Crane

1.15.6 Elevator

1.15.7 Emergency Bulkhead

1.16 DIVE OPERATIONS (OPTION)

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 DIVING OPERATIONS (OPTION)

3.1.1 Diving Scope of Work

3.1.2 Diving Working Conditions

3.1.3 Dive Work Documentation

3.1.4 Dive Personnel Qualifications

3.1.5 Safe Practices Manual

3.1.6 Dive Operations Plan

3.1.7 Emergency Management Plan

3.1.8 Activity Hazard Analysis (AHA) (to cover all aspects of the job)

3.1.9 Insurance Requirements

3.1.10 Diving Operations

3.1.11 Surface Supplied Air (SSA) Operations

3.1.12 Equipment Requirements

3.1.13 Minimum Dive Team Manning Level

01 12 00.00 23 - 1

3.1.14 Pre-Dive Conference

3.1.15 Pre-Dive Checks

3.1.16 Alteration to Dive Mission/Dive Plan

3.1.17 Post-Dive Debriefing

3.1.18 Decompression/Pulmonary Barotrauma Symptoms

3.1.19 Dive Log Information

3.1.20 Aquatic Nuisance Species Prevention Measures for Dive

Operations

-- End of Section Table of Contents --

01 12 00.00 23 - 2

SECTION 01 12 00.00 23

SPECIAL PROJECT REQUIREMENTS

08/04

PART 1 GENERAL

Specific requirements for materials, processes, performance, quality and installation are provided under the technical sections of these specifications. The Government reserves the right to inspect the Contractor's work at any time, whether the work is performed in the field or at the Contractor's shop.

The sequence of operations shall be maintained so that the maximum amount of work may be done under favorable working conditions in accordance with the completion time set.

The Government does not currently have a work area for use by the Contractor for fabrication, machining, painting, and assembly work under this contract. Except for work specifically required to occur within the tower or onsite, the Contractor shall have a plan to perform all work, including fabrication, machining, assembly, and painting, off Government property. Should the contractor propose a work area onsite, the government will assess the proposal and provide input and approval if the proposal is acceptable.

These specifications represent part of the requirements for the contract.

The contract plans shall be used in conjunction with the specifications for the complete requirements of the contract.

The performance of the Emergency Bulkhead for dewatering downstream areas of the tunnel is known to leak significantly along the bottom. The sides and top of the bulkhead seal well and have little leakage. Considerable water spray is observable along the bottom of the bulkhead, especially when debris is trapped under the bulkhead. Some of the leakage may be from loss or damaged frame. The Contractor is required to manage the leakage to perform work in the contract. Permanent damage or modification to the frame, concrete, or rebar is prohibited.

Work requiring design or analysis shall be accomplished by a licensed professional engineer with minimum 5 years of experience in the discipline represented by any calculations. Required design criteria are the most current available, with USACE criteria governing. The calculations for existing structures shall be in accordance with USACE criteria, including EM 1110-2-2104 and EM 1110-2-2902.

The rock pad is to remain on site at the conclusion of the project. It is not to be removed or altered except as approved.

AMENDMENT 001

The Intake Tower's Uncontrolled Inlet has been modified from that shown on RS704 and RS705. The current sill for the uncontrolled Inlet is 1463.0 ft.

See RS704A for modifications to the Uncontrolled Inlet.

01 12 00.00 23 - 3

1.1 REFERENCES

The publications listed below form a part of this section to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO MBE (2011)Manual for Bridge Evaluation, Second Edition

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

AMENDMENT 001

U.S. Navy (USN)

U.S. Navy Diving Manual Revision 7, (December 2016)

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

29 CFR 1910 Occupational Safety and Health Standards

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Portable Crane; G, DO

Pedestrian Bridge Utilization Plan; G, DO

Tower Access and In-Situ Plan; G, DO

High Water Report; G, DO

On-Site Storage Of Gates; G, DO

AMENDMENT 001

Dive Operations Plan; G, DO

Safe Practices Manual; G, DO

Emergency Management Plan; G, DO

Activity Hazard Analysis (AHA); G, DO

Critical Lift Plan; G, DO

01 12 00.00 23 - 4

SD-05 Design Data

Rock Pad Assessment And Modification Report; G, DO

Existing Structure Evaluation; G, DO

SD-06 Test Reports

GFE Condition Report, G, RO

AMENDMENT 001

Daily Dive Logs; G, DO

Final Job/Dive Report; G, DO

Audio/Video; G, DO

SD-07 Certificates

Dive Personnel Qualifications; G, DO

Equipment Testing And Maintenance Records; G, DO

Air Purity/Breathing Air; G, DO

Insurance Requirements; G, DO

Aquatic Nuisance Species (ANS) Prevention Certification; G, DO

1.3 Water Surface (Reservoir) Elevation

The Kanopolis Reservoir will follow the lake's Water Control Plan and Lake Management Plan, with exception to the fall drawdown period. For this contract, the Contractor shall assume the target pool elevation at 1463.0 ft (+2 ft, or lower) from 01 December to 15 March, and that no other releases beyond that required by the Water Control Manual will be made to alter the water surface elevation.

If a flood event occurs requiring the government to make releases through both chambers of the Outlet Works, the Contractor will not be allowed access to the tunnel and all equipment and materials must be promptly removed from the chamber and water barrier re-established at the control gatewell. It is not assumed that this type of emergency event will occur during this contract.

When the Contractor is working in the tunnel, the Government may be required to make releases through operational chamber or uncontrolled port. The Contractor shall expect to complete all work with releases in the operational chamber and uncontrolled port.

For historical reservoir elevation at Kanopolis, see the following website:

http://waterdata.usgs.gov/ks/nwis/uv/?site_no=06865000&PARAmeter_cd=62614,62615,00054.

Note: Historical pool elevations may be indicative of future lake elevations, but it is possible for the previous record high pool to be surpassed in any year.

01 12 00.00 23 - 5

1.4 TOWER ACCESS AND IN-SITU PLAN

The Contractor shall submit a plan for removal of the existing Service Gates, and placing the new Service Gates within the tower a minimum of 30 days prior to any on-site work. The plan shall include a schedule and complete description of work activities, equipment, personnel, and outages.

The schedule shall include target pool elevation for In-Situ work; a complete description of disassembly time and removal of the existing gates;

arrival and demobilization of any portable crane and barge (if applicable);

tunnel access; fabrication, fabrication measurement, machining, final measurement, and painting of new gates; delivery, storage, and installation of new gates; transportation, measurement, and temporary storage of existing gates; coordinated silt flush; and schedule for Lockout/Tagout of tunnel. Note: the roof of the tower does not have guard rails.

The Plan shall show compliance with the Control Gate Logistical Restriction. The Contractor may assume seven calendar days for Government response for each of the following submittals: Left and Right Gate Fabrication Measurements, Left and Right Existing Gate Measurement and Machining Verification, and Left and Right Final Gate Measurements.

If the Contractor chooses to use the pedestrian bridge for moving any equipment or personnel via wheeled or tracked vehicle, cart, or other device, then this shall be documented in the plan. See PEDESTRIAN BRIDGE UTILIZATION PLAN paragraph below for requirements for using the pedestrian bridge.

The location and details of the tower's roof hatch is shown on FIO drawing

RS 726.

AMENDMENT 001

1.4.1 Safe Clearance Procedures

Hazardous Energy Control Procedures (HECP) are implemented for all maintenance and construction activities on USACE property. These procedures are in accordance with OSHA regulation 29 CFR 1910, including 1910.147, 1910.333, 1910.269 and USACE Safety and Health Requirements Manual, EM 385-1-1, The Control of Hazardous Energy (safe clearance). Any work performed at the project will be performed under the project's safe clearance procedures. The Contractor shall request a clearance on a piece of equipment or system before any work may begin. The Corps will establish the limits of the clearance and tag and lock the equipment or systems. The Contractor has the option to institute their own safe clearance procedures in accordance with OSHA and USACE regulations, within the parameters of the Corps' clearance. The Contractor's clearance shall not inhibit or interfere with the Corps' operation of the plant. The clearances shall not be violated. Any violation of Hazardous Energy Control procedures (Safe Clearance Procedures) will be grounds for removal of the offender(s).

1.5 CONTROL GATE LOGISTICAL RESTRICTION

Prior to any demolition or disassembly, or other action that would render an existing control gate inoperable for use, the Contractor is required to have at least one of the new replacement control gates fabricated, stress-relieved, and Gate Fabrication Measurements verified.

Both control gates shall be in operation from 01 May to 31 August. An operational control gate may be either an existing gate or a replaced

01 12 00.00 23 - 6 gate. The Emergency Bulkhead may not be deployed during this time.

A tunnel's chamber shall not have a gate inoperable in excess of seven consecutive weeks. AT NO TIME SHALL BOTH CONTROL GATES BE INOPERABLE DUE

TO DISSASSEMBLY OR ANY WORK ON THE GATES. THE FIRST REPLACED GATE SHALL BE

TESTED AND ACCEPTED PRIOR TO ANY WORK RENDERING THE SECOND GATE

INOPERABLE. If delays occur to the approved schedule that exceeds seven consecutive weeks of chamber inoperability, the Contractor shall notify the Contracting Officer immediately of the delay. If a delay occurs, the Contractor shall submit a High Water Report every seven days the chamber is inoperable and provide daily updates to the status of the delivery and installation of the new control gate. In addition, the Contractor will be required to resubmit the Tower Access and In-situ Plan with expected high pool elevation, or pool elevation of 1468 ft, whichever elevation is higher. The Contractor may be directed to make preparations and delivery of equipment and materials for installation of the gate into the tower at Contractor's expense due to the Contractor's delay. In the event of delay, the Contractor may also be directed to ship the existing gate to the project office and make preparations to re-install the existing gate. In the event of delay, the Contractor may be directed to work multiple shifts, overtime, or extend the work week to expedite the critical path until the schedule no longer has a delay. Each existing gate and all of its components shall be kept in good condition and accessable to the Contractor until its replacement gate has been installed and accepted.

The existing control gate that is removed and measured first shall be shipped back to the project site along with the replacement gate. After the first replacement gate is installed and tested in the tower, the existing control gate that was measured and shipped back to site shall be placed in the tower at the location of the Emergency Bulkhead storage. The Contractor shall submit drawings for approval for the modification to the existing control gate and provide new brackets for securing the gate in the tower. The Emergency Bulkhead storage angle brackets may not be modified or used to support the existing control gate. The stored existing gate shall be removed from the tower after the second replacement gate is intalled and tested.

1.6 ROCK PAD ASSESSMENT AND MODIFICATION REPORT

Sheet GI003 shows an approximate location of an existing rock platform constructed to approximate elevation 1465 ft for supporting and raising a crane out of water. Approximate constructed dimensions of the surface of the pad is 50 ft x 50 ft with side slopes of 1.5:1. If the Contractor chooses to utilize the existing rock platform, the condition, design of the platform, and any proposed modifications to the platform shall be submitted in a report with figures and calculations showing it to be adequate for intended work. All proposed loads shall be verified based on the equipment to be used to install the Control Gates, and calculations and figures provided in the report. The report shall be approved prior to making modifications to the rock pad or mobilizing a crane to the rock pad. If the rock pad needs repairs in excess of additional 15 tons of stone to restore the pad to the originally constructed dimensions and elevation, then the Government will issue a modification for those repairs provided the Contractor submits a survey of existing conditions and computed volume for repairs. Raising the elevation above 1465 ft or increasing the size of the rock pad from original construction is at the Contractor's expense.

The weight of the rock pad and all surcharge loads are to be used in calculations for Existing Structure Evaluation.

01 12 00.00 23 - 7

Note: wind and wave action has affected the actual slope and height of berm from original construction and may have affected the rock platform. FIO drawing RS703 shows the original construction elevations. The ground surface elevation is higher than is shown on RS703 near the shoreline. It is recommended that the Contractor survey the area prior to submitting design calculations for modifications to the rock platform.

1.7 EXISTING STRUCTURE EVALUATION

The Contractor is required to provide an structural evaluation of the existing structures for all equipment and material loads, and any surcharges required to accomplish the work. The loads affecting any existing structure (e.g. tower, approach and head walls, or tunnel) shall be addressed in the evaluation with strength and stability calculations.

Plan views and cross sections showing load magnitude and distance from the structure shall be included in the evaluation. Cross sections of the structures shall be shown with applied loading and with clear computations of demand and strength of the structure. The calculations for existing structures shall be in accordance with USACE criteria, including EM 1110-2-2104 and EM 1110-2-2902. The affect of the loads and surcharges shall not overstress any existing structure or create any permanent differential deflection between existing structures.

The Contractor may elect to set a crane on a barge for accessing the tower. The size of the barge, depth of loaded barge below the waterline, precaution to prevent vessel impact with existing structure, location of entry into the lake, and all loads shall be included in the Evaluation.

Any loading onto existing structures from the loaded barge (e.g. run aground) shall be analyzed in accordance with USACE criteria, including EM 1110-2-2104. The existing structures shall not be used for anchorage.

Note: wind and wave action at the shoreline has caused material to sluff into the water, tending to create a higher ground elevation near the tower than that shown on FIO drawing RS703. The Contractor is responsible for surveying ground elevation or dredging to ensure adequate clearance for passage of the barge.

For work inside the tower, the Contractor may use the 15 Ton trolley crane. Loads to be used by the crane, as well as loads on the floor and grating within the tower, shall be included in the Evaluation with calculations, along with a structural analysis of the floor and grating indicating the floor and grating are not overstressed.

If the Contractor has any motorized equipment or vehicle that passes over the flood control tunnel between Tunnel Stations 0+00 to 5+00, then the Contractor is required to include a structural analysis of the tunnel as part of the Evaluation.

The Existing Structure Evaluation shall be approved prior to placing loads in the zone of influence of existing structures.

1.8 ON-SITE STORAGE OF GATES

Storage of the gates shall be at an on-site location approved by the contracting officer's representative, and shall keep the structure out of direct sunlight and protected from weather. Details of storage equipment and how the gates will be protected shall be included in the submittal, and shall be approved prior to shipping the gates to the project location.

01 12 00.00 23 - 8

1.9 HIGH WATER REPORT

If the Contractor plans to access the tower with a crane during the target pool elevation of 1463.0 ft, then the Contractor is required to monitor reservoir elevations and lake inflow forecasts beginning 01 November. If the water elevation is above 1467.7 ft on 01 November, then the Contractor shall submit a report with the current and forecast lake elevations for Kanopolis Lake and a request for early drawdown.

If the Contractor plans to access the tunnel when the pool elevation is above 1463.0 ft, or if the Contractor intends to perform any work requiring use of the Emergency Bulkhead or any dissassembly or Lock-out of a Control Gate, then the Contractor is required to monitor reservoir elevations and lake inflow forecasts. The Contractor shall submit the pool elevation and inflow forecasts for Kanopolis Lake in a report for approval of entry a minimum of 3 days and maximum of 7 days prior to entry of the tunnel or prior to gate work stated above.

Every 7 consecutive days a Control Gate is inoperable from either disassembly or Lock-Out, a High Water Report shall be submitted with reservoir elevations and lake inflows for Kanoplis Lake.

The forecast lake elevations shall come from Water Management Section, Kansas City District, which posts forecasts at the following website:

http://www.nwd-mr.usace.army.mil/rcc/nwk/lakepool.txt.

1.10 EMERGENCY BULKHEAD OPERATIONAL RESTRICTION

Any time the emergency bulkhead is deployed in the slot, it must be operated under critical design requirements. The operational and deployment requirements for the emergency bulkhead are shown on FIO Sheet RS719. The Contractor is required to allow sufficient time to water-up the space between the service gate and bulkhead prior to redeploying the bulkhead. "Watering-up" is a term used to describe equalizing hydrostatic pressures on each side of the emergency bulkhead. If Option for Dive operations is not exercised, then prior to the deployment of the emergency bulkhead, the government will operate the service gates to perform a "silt flush" to aid in the removal of accumlated silt within the tower. The Contractor is required to coordinate with the government a minimum of two weeks in advance to allow time for government personnel to perfrom the silt flush. Deployment and redeployment of the Emergency Bulkhead shall only occur in presence of project office personnel or the Contracting Officer's Representative.

1.11 PORTABLE CRANE

For all work in this contract that requires a portable crane, the contractor is responsible for providing and operating the crane meeting the requirements as outlined within this specification. See additional crane safety requirements in Section 01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS.

The Contractor shall provide a crane of adequate capacity for work in this contract and all support equipment and personnel for work in this contract.

The contractor is responsible for providing all rigging, supports, cribbing material, etc. for work in this contract except as specifically noted otherwise in this specification. The Contractor shall submit for approval the following data for the proposed portable crane: total crane weight, wheel loads, wheel position while lifting load, outrigger position and loads at rated lifting load, location of center of rotation and lift radii for all lifts and load wings, and crane and outrigger dimensions. All

01 12 00.00 23 - 9 calculations and sketches shall be submitted to clearly show the crane has sufficient boom length, angle, and capacity for location and lifting loads. If a crane is deployed by barge, stability calculations for the barge shall be included in the report. Crane manufacturer catalogue information shall be submitted to verify information and calculations.

1.12 PEDESTRIAN BRIDGE UTILIZATION PLAN

If the Contractor elects to use the existing pedestrian bridge for any function other than pedestrian traffic loading (such as moving any equipment or personnel via wheeled or tracked vehicle, cart, or other device that exceeds 90 pounds per square foot), then at a minimum of 30 days prior to using the bridge for these purposes, the Contractor shall submit a Pedestrian Bridge Utilization Plan. The plan shall detail required vehicles, cart, or other mobile device, sequence of all major deployment activities, and any material storage plans. The plan shall include a report with a bridge load rating analysis performed by a registered professional engineer with 5 years of bridge design or load rating experience. The analysis shall consider all structural elements affected by the load and be performed in accordance with AASHTO MBE. The yield strength of the structural steel components is 33,000 psi, and 28,000 psi for rivet steel. The concrete deck compressive capacity is 2500 psi.

The load rating shall be computed for all anticipated construction loads.

In addition to the load rating calculations, the report shall include all rigging equipment, specific vehicle, cart, or other mobile device loading plans, axle and wheel loads, and axle and wheel spacing. A calculated permit load rating factor for any limit state greater than 1.0 is required for utilizing the bridge for other than pedestrian traffic. A recent USACE inspection of the pedestrian bridge structural components will be made available to the Contractor upon request. Any changes to the plan will require the plan, report, and calculations to be updated by the Contractor and will require resubmission to the Government for approval prior to implementation of the changes.

1.13 COOPERATION AND COORDINATION WITH OTHERS

The Contractor shall cooperate and coordinate his work with that of others as required for orderly completion of all work. Other contractors on U.S.

Government work (including Government personnel) may be working in the area during the life of this contract. The Contractor shall coordinate his work with others to avoid undue interference and shall conduct his operation within the limits of the assigned construction area or construction right of way limits. The Contractor shall cooperate with others as necessary in the interest of timely completion of all work and in the event of disagreement the decision of the Contracting Officer shall be final.

The Contractor shall inform the Project Lake Manager of scheduled work on site prior to each mobilization to the dam.

1.14 GOVERNMENT OPERATING EQUIPMENT

The Contractor's employees shall not open, close, or tamper with switches, valves, or control devices for existing installed equipment within the control tower. Only Government operating personnel will be authorized to open or close existing switches, valves, and control devices to enable the Contractor to make connections or modifications to existing equipment for execution of the work delineated in this contract. A minimum notice of 24 hours during the week and 72 hours over the weekend shall be provided for coordination of downtime by the Government.

01 12 00.00 23 - 10

1.15 GOVERNMENT FURNISHED EQUIPMENT (GFE)

Use of Government equipment or property not specifically mentioned herein or shown on the drawings shall be subject to approval.

1.15.1 GFE Condition Report

The Contractor, Project Lake Manager (or his appointed representative) and a representative of the Contracting Officer shall inspect all Government furnished equipment for condition prior to use. Upon completion of the work, the equipment must be returned to the Government in the originally inspected condition. The initial and final inspection of the GFE will be clearly documented in a report with narrative and photos of before and after condition.

1.15.2 Safety Railings

Government furnished safety railings, made available to the Contractor, shall be placed around the floor openings whenever the gate well covers are removed on the operating floor (EL 1532.5 ft)

1.15.3 Pedestrian Bridge

The Contractor may use the pedestrian bridge to access the tower. See Pedestrian Bridge Utilization Plan paragraph for restrictions.

1.15.4 Structural Floor Grating

The structural floor grating shown in the FIO drawings are currently in storage on Government property and not placed in the tower. The floor penetrations in the tower are currently covered with lighter non-structural grating that should not be used by the Contractor to support loads beyond personnel safety. If the Contractor's Tower Access Plan requires the use of the structural floor grating, the plan shall include an analysis of the floor grating to support the load. It is the Contractor's responsibility to load, haul, and install the structural floor grating, and temporarily move the non-structural floor grating to storage. At the completion of work within tower, the structural floor grating shall be returned to its storage location, and the non-structural floor grating shall be re-installed at the tower.

1.15.5 Trolley Crane

For work inside the tower, the Contractor may use the 15 Ton trolley crane.

The contractor will be trained in the operation of the crane only one time during the contract period by the staff at Kanopolis lake in the presence of the COR. As part of the crane training the contractor will be trained in the Hazardous Energy Control Program (HECP) currently in place at Kanopolis Lake. The Contractor will be requried to be trained in this program and follow all requirements during the construction period.

Training will be scheduled with a 15 day advance notice through the COR.

Only those individuals who have completed training by Project personnel and qualified in accordance with EM 385-1-1 may operate the trolley crane.

1.15.6 Elevator

The elevator will be available for use by the Contractor for transfer of personnel from floor to floor. The Contractor shall not use the elevator

01 12 00.00 23 - 11 for transfer of equipment at any time.

1.15.7 Emergency Bulkhead

The Emergency Bulkhead, lifting beam, and associated equipment, is available for the Contractor to use. Information about the bulkhead and lifting beam are shown on FIO drawings RS719-RS726.

1.16 DIVE OPERATIONS (OPTION)

Bid Item No. 0004 requires Penetration Dive Operations and includes all dive work, equipment, materials and labor, associated with clearing sediment and debris from the two Emergency (E) Bulkhead slots and tunnel liner, and a sediment survey within the intake tower from the intake trashracks to the two service gates. A "Dive" is defined by the Kansas City District US Army Corps of Engineers (NWK) as, "Any activity that may cause a person to penetrate the surface of a body of water with any portion of his or her head." NWK has stringent dive requirements that must be met.

All diving must be done using surface supplied air (SSA). Self-contained underwater breathing apparatus (SCUBA) is NOT allowed and shall not be used in this contract. Under no circumstance shall free diving (breath hold) techniques be employed. All dive requirements whether explicitly stated or referred to within this contract, must be met prior to a dive team arriving onsite.

The Contractor shall inform the Contracting Officer's Representative a minimum of 14 days prior to any dive activity using pre-accepted and pre-authorized dive personnel, equipment and plans. If dive personnel, equipment and plans have not gone through the dive submittal process, and an acceptance and authorization letter has not been completed, the contract submittal time requirements will apply and any delays in work will be at the Contractor's expense. Any changes to pre-accepted dive contractor(s), dive plans, equipment and personnel will require new submittals for review and acceptance by the District Dive Coordinator (DDC). Any delay this creates will be at the Contractor's expense. In addition, any delay in work resulting from the rejection of dive related submittals will also be at the Contractors expense. All dive submittals shall be submitted to the DDC through the Contracting Officer for review, and found acceptable, prior to commencement of diving operations. Each dive mob/demob is considered a separate dive operation. Each dive operation requires a new set of dive submittals to the Government for review and acceptance prior to the dive team mobilizing to the site.

The District Dive Coordinator (DDC) and Alternate Dive Coordinator (ADC) are responsible for coordinating, accepting, and monitoring all contract dive operations. All diving operations shall be conducted with full knowledge and close coordination with the Corps and on-site government authorities such as the Kanopolis Lake Operations Manager and/or project personnel, as well as prime contractor personnel, sub-contractor personnel, and any other onsite contractors that may directly or indirectly impact dive operations. Communication with all divers and stand-by diver shall be a 4-wire type system (2-way voice communication). This will permit the Dive Supervisor and all divers to communicate simultaneously. This is a penetration dive and will require a communications setup for a minimum of three divers (diver, in-water tender, standby diver).

No dive operations shall occur without an authorized USACE Dive Inspector onsite. The dive platform used for diving operations must have space for the USACE Dive Inspector. The Prime Contractor is required to supply an

01 12 00.00 23 - 12 individual from their company that is "pre-approved and empowered" to direct the dive sub-contractor and that individual shall be onsite any time dive operations are occurring. Any delays or work stoppages resulting from the absence of this individual will be at the primary contractor's expense. A list of pre-approved and empowered individuals with the ability to direct the dive contractor must be provided to the onsite dive inspector, additionally, a copy shall be emailed to the DDC and Alternate Dive Coordinator (ADC).

Specific dive operation requirements, working conditions, submittals, and other dive related information can be found in PART 3 EXECUTION below.

PART 2 PRODUCTS

Not Applicable.

PART 3 EXECUTION

3.1 DIVING OPERATIONS (OPTION)

3.1.1 Diving Scope of Work

a. Sediment and Debris Removal. Divers shall remove all sediment and debris from within 3 ft upstream of each E Bulkhead slot, to 2 ft downstream of each E bulkhead slot, as well as inspect and clean the E bulkhead slot to the top of the passageway. Sediment and debris shall be removed down to the concrete and/or embedded metal surfaces. All sediment and debris shall be removed within the required clear zone to ensure clear travel of the bulkhead and its proper seating on the frame. If sediment depths are greater than 1-ft in the required clear zone upstream of the bulkhead slot, a 1-ft vertical and 2-ft horizontal slope or less must be created up to the existing sediment height in the intake tower. Sediment and debris may be removed by divers, or moved downstream of the cleaning limits by divers, and then removed from the tunnel by the Contractor after the E Bulkhead is deployed. Divers will remain mobilized until an adequate seal of the bulkhead has been determined by the Contractor. Depth of sediment removed and consistency of sediment is to be reported in the final dive report.

b. Sediment Survey. Divers shall perform a sediment survey within the intake tower using a measurement probe marked in 1-inch increments to determine sediment depth based of the known concrete floor elevation of

1415.0. Measurements are to be taken the centerline of each column of trashracks in a line to the service gate every 3 ft with measurements presented on a government provided template in the final dive report.

AMENDMENT 001

3.1.2 Diving Working Conditions

This is a penetration dive operation. A minimum of six divers is required and a qualified dive supervisor must be on the rack/com box at all times.

An in-water tender will be required. Diver access to the two passageways for the E Bulkhead slots is through the 2 ft by 14 ft access slot located on the trashrack deck at deck elevation 1480 ft; shown on FIO drawings RS704 - RS706. Normal pool elevation is 1463 ft, creating a 17 ft gap between the diver entry point and the surface of the water. Trashracks are in place on the upstream side of the intake tower passageways preventing diver egress to lake. Contractor shall provide means for diver entry and

01 12 00.00 23 - 13 exit from the water surface to the trash deck. The dive inspector may require a demonstration of an emergency extraction prior to beginning actual dive operations. Normal pool elevation is 1463.0 (high altitude).

The floor the intake tower is at elevation 1415.0 resulting in a maximum depth of 48 ft at normal pool. Diving shall not occur when the pool is at elevation 1463 ft or greater when water is going through the uncontrolled inlet.

The intake tower contains two control gates that regulate the reservoir level during normal operations; including flood control and an uncontrolled inlet at elevation 1463.0 m.s.l. The intake tower is the primary means of controlling the lake level. There is also one Emergency Bulkhead that can be deployed upstream of either control gate. Should lake levels become higher than 1463.0 m.s.l., the dive operations shall be halted until the lake level is reduced.

Depending on the time of year the work is performed, air temperatures could range from teens to upper 90 degrees Fahrenheit and water temperatures could range from 32 to 80 degrees Fahrenheit. During winter months the lake may be frozen and access to the tower by boat may not be possible.

Access to the trashdeck is by exterior stairs on the intake tower as shown on FIO Sheets RS704 and RS707A or may be possible by water using exterior embedded ladder rungs, see FIO Sheet RS706. Note, the condition of the ladder rungs should be inspected by the contractor prior to use.

Sediment is present within the intake tower. Depth and density of sediment has not been verified in the area to be cleaned; however, the E Bulkhead has been deployed in each slot in 2017 and able to close to within approximately 3 inches, resisted primarily by debris. Sediment should be assumed to be a mixture of loose and compacted material. Sediment was removed from within the intake tower down to a clean concrete surface at elevation 1415 (approximate 0 ft depth) in 2010. Estimated sediment depth immediately upstream of the intake tower trashracks taken in July of 2017 ranged from 13-16 ft. Sediment depths immediately upstream and downstream of the emergency bulkhead slots are unknown but expected to be significantly less in the required clean zone.

3.1.3 Dive Work Documentation

a. Final Job/Dive Report: The Contractor shall submit a final job/dive report to the Government after completion of all work. The final report shall include documentation of all work conducted by the Contractor, observations by sight or touch, (i.e. conditions observed, sediment depth and consistency, description of deficiencies, damage, drawings, dive logs, audio/video recordings, etc.) as specified herein. The sediment survey should be provided as a simplified drawing indicating depths of sediment along the requested paths. Description of the debris removed and sediment composition should also be included in the report.

b. Audio/Video: The Contractor shall take underwater audio and video footage as directed by the onsite Government representative. The clarity of the recording shall be checked by the Contractor to assure the information being recorded is of sufficient resolution, format and audio quality. The audio/video footage shall be compatible with Windows Media Player format (Version 11 or higher). The audio/video shall be synced to play simultaneously. All raw audio/video files shall be included for this submittals requirement. The Contractor shall provide all audio/video files on a Mechanical Portable Hard Drive (Non-Flash Drive), not to exceed 2 TB, to the Government.

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3.1.4 Dive Personnel Qualifications

a. Fit to Dive Medical Requirements: Divers will receive an annual diving physical according to ADCI or similar standards, preferably by a hyperbaric physician (MD or DO) knowledgeable in the physiology of diving.

The Contractor shall submit a "Fit to Dive" statement signed and signature stamped by a licensed physician (MD or DO) only, stating that the diver has been medically examined within the previous 12 months and has been determined, fit and approved to dive.

b. Injury. After any serious diving-related injury or illness such as an over-pressurization injury and/or decompression illness, divers shall be re-examined by a hyperbaric physician and be re-certified as "Fit to Dive".

c. Each dive team member shall have current certification in CPR, first aid, the use of emergency oxygen systems, and, if provided on the dive site, the use of Automated External Defibrillators (AEDs). Evidence of this will be a photocopy of the certificates. Photocopies of all required certificates/documents shall clearly indicate the renewal and/or expiration date.

d. Training documentation shall be in compliance with the OSHA Diving Standards 29 CFR 1910.410 and shall show that the dive team members, including dive tenders, have successfully completed training to the appropriate level (e.g., SSA diver's certificate, surface supplied mixed-gas diver certificate). Copies of all dive-related training certificates are required. Such training shall be provided by:

1) A commercial diving school, military school, Federal school (e.g., USACE), or an Association of Commercial Diving Educators (ACDE) accredited school;

2) An in-house training program that meets the requirements contained in ANSI/ACDE-01, or in the Association of Diving Contractors International (ADCI) Consensus Standards; or

3) Training for Scientific Divers using compressed air (SCUBA or SSA), shall be in compliance with 29 CFR 1910.410 and shall meet the above requirements or the training guidelines in the Standards for Scientific Diving published by the American Academy of Underwater Scientists (AAUS).

e. Proof of certification (a diploma and/or official transcript) as a commercial working diver from an accredited commercial dive school and other dive-related training certificates (e.g. chamber operator, saturation diver, etc.) are required as proof of a dive team member's certification and/or experience. An ADCI card or similar certification from an internationally recognized commercial diving organization may be substituted as proof of training for divers demonstrating more than five

(5) years of diving experience within the six (6) years preceding beginning of dive operations.

f. The Contractor shall provide evidence that each dive team member has training and experience consistent with the performance requirements of the scope of work. As a minimum, each team member shall have a least 1 year of commercial working diver experience in the applicable position; divers shall have completed at least four (4) working dives with similar decompression techniques as in the contract, using the particular diving

01 12 00.00 23 - 15 techniques and equipment to be used under the contract. Divers shall demonstrate that at least one (1) of the four (4) qualification dives was performed in the last 9 months prior to the start of dive operations for this contract. Submittal of (4) legible signed and dated dive logs indicating similar depth and work to this contract is required for each dive supervisor/diver/standby diver/tender. Diver resumes do not replace this requirement. Dive logs must include the name of the team member rather than initials only.

g. First Aid Certifications. All classes shall contain a hands-on component and cannot be taken online. Evidence of this will be a photocopy of the certificates. The certificate(s) shall state the date of issue and the length of validity. Each dive team member shall have current certification in the following,

1) First aid and CPR from the American Red Cross (ARC), the American Heart Association (AHA), or from an organization whose training adheres to the standards of the International Liaison Committee on Resuscitation, or from a Licensed Physician (LP).

2) Emergency Oxygen Systems. Training shall be specific to underwater diving and shall meet the requirements of a nationally recognized training organization such as Divers Alert Network (DAN), Professional Association of Diving Instructors (PADI), National Association of Underwater Instructors (NAUI), the YMCA or other recognized sources.

3.1.5 Safe Practices Manual

The Contractor shall develop and maintain a Safe Practices Manual that encompasses their entire dive program. The Safe Practices Manual shall be available at all times to the Government representative(s) and all dive team members at each diving location. If the Contractor's Safe Practices Manual is on file with the DDC, a statement and date of the latest review and update of the manual shall be submitted and signed by the responsible individual of the manual. The Safe Practices Manual shall include, as a minimum, the following:

a. Dive safety procedures and checklists,

b. Assignments and responsibilities of dive team members,

c. Equipment certifications, procedures, and inspection checklists;

d. Emergency procedures for fire, equipment failure, adverse weather conditions, and medical illness or injury and specific procedures for:

1) Entrapped or fouled diver including fouled umbilical suction and entanglement/debris);

2) Actions upon loss of vital support equipment,

3) Actions upon loss of gas supply,

4) Action upon loss of communication;

5) Lost diver plan,

6) Injured diver plan, 01 12 00.00 23 - 16

7) Actions upon discovery of fire,

8) Diver blow up/over rapid ascent to surface,

9) Diver loss of consciousness; and

10) Injury/illness of member of surface crew with diver in the water.

e. Procedures for internal safety inspections (frequency, checklists, etc.);

f. A complete copy of OSHA, 29 CFR 1910, Subpart T, and a statement of the policy for ensuring compliance with the standard;

g. The appropriate U.S. Navy Table(s) from Revision 6 dated 15 April 2008, including as a minimum,

1) U.S. Navy Table of No-Decompression Limits and Repetitive Group Designation for No-Decompression Air Dives;

2) U.S. Navy Residual Nitrogen Timetables for Repetitive Air Dives;

and

3) U.S. Navy Standard Air Decompression Table.

h. A sample of the diving log sheets to be used,

i. A sample of the repetitive dive worksheets or equivalent (dive profile method) to be used,

j. An outline of the fitness for duty (including medical) requirements for dive team members, and

k. An outline of administrative and recordkeeping procedures.

3.1.6 Dive Operations Plan

The Contractor shall develop a Dive Operations Plan that provides a general overview of all tasks to be performed, dive modes and equipment, site access, etc., as required by EM-385-1-1. Complex projects involving more than one work task, location, and/or dive team require task-specific dive plans as part of the overall Dive Operations Plan. As a minimum, the Dive Operations Plan shall contain the following:

a. Name of Contractor (and diving subcontractor if applicable);

b. Contract number;

c. Date of dive plan submission;

d. Name and contact information for diving supervisor preparing the dive plan;

e. Names and duties of onsite dive team members, including diving supervisor;

f. List of diving equipment to be used;

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g. Type of diving platform to be used;

h. Detailed description of mission; Identify how/ if work will be divided into separate tasks or phases of work;

i. Date(s), time(s), duration, and location of operation;

j. Diving mode used (SSA, etc.) including description of the backup air supply, as required;

k. Nature of work to be performed by the divers, including tools used (electric, hydraulic, pneumatic, etc.) and materials to be handled or installed;

l. Anticipated surface and underwater conditions, to include visibility, temperature, currents, etc.;

m. Maximum single bottom time for the planned depth of dive for each diver. Altitude adjustments to dive tables will be calculated for dives made at altitudes of 1,000 ft. (304.8 m) or more above sea level.;

n. Identification of topside assistance/support to the dive team (i.e., crane operator, other contractors, etc.);

o. Means of direct communication between the dive site and other contractors working within the area of the dive operations (i.e. crane operator), the project office, Contracting Officer's Representative (COR), and USACE Project/Operations Manager, and DDC.;

p. The following statement: "If for any reason the dive plan is altered in mission, depth, personnel, or equipment, the DDC will be contacted in order to review and accept the alteration prior to actual operation."

3.1.7 Emergency Management Plan

a. The Contractor shall prepare an Emergency Management Plan for each dive operation. As a minimum, the plan shall include the following content:

b. Location and phone number of nearest operational recompression chamber if not located at the dive site and the Divers Alert Network (DAN) phone number (919-684-9111);

c. If a recompression chamber is not onsite, the dive contractor shall confirm availability of the nearest recompression chamber.

d. Location, directions to and phone number(s) of nearest hospital(s) or available physicians capable of treating dive injuries,

e. Location and phone number of nearest USCG Rescue Coordination Center, where appropriate;

f. Description of emergency victim transport plan including phone numbers of appropriate emergency transport services;

g. Procedures and phone numbers or other means of communications to activate emergency services at the facility where the work is being performed,

h. Diver rescue procedures conducted by the dive team, including responsibilities of team members, best location(s) where injured divers may

01 12 00.00 23 - 18 be removed from the water, and best location(s) for performing first aid/stabilization prior to emergency medical assistance arrival.

Note: The dive Contractor shall, at the request of the DDC, ADC or onsite USACE dive inspector, demonstrate an emergency extraction of a simulated unconscious diver on the surface prior to beginning of work. Any issues resulting from the demonstration must be resolved prior to beginning dive work.

3.1.8 Activity Hazard Analysis (AHA) (to cover all aspects of the job)

The Contractor shall develop an AHA, which represents the dive team's best efforts to anticipate and mitigate or prevent the adverse effects of equipment failure, extreme weather/environmental conditions, or other hazardous/unexpected situations. The AHA shall be covered in detail at the pre-dive conference and address the following:

a. Risk to personnel, property and to impacts to the overall mission.

When required, a new AHA shall be conducted to reflect changes in site conditions, operational changes, etc.,

b. Be job specific and address each phase of work, to include the hazards associated with flying after diving. Each phase of work should be broken down into tasks, and

c. Control of Hazardous Energy (Lockout/Tagout) procedures in accordance with Section 12 (Control of Hazardous Energy) of the USACE Safety Manual and procedures for dealing with differential pressures will be included if appropriate.

1) If Hazardous Energy Control procedures are required for the diving operation, the diving supervisor will visually check all lockout/tagout and other control procedures/devices to assure they are in place and redundant where possible prior to the commencement of the diving operation.

2) A copy of any clearances/permits to be issued to deal with identified hazards will be attached to the AHA and submitted to the DDC.

3.1.9 Insurance Requirements

The dive contractor shall be required to furnish certificates of the following insurance minimums:

a. Workman's Compensation and Employer's Liability Insurance as legally required by the State wherein the work is being performed.

b. Comprehensive, bodily injury, and property damage liability; minimum limits of $1,000,000 for injury to or death of any person, and $1,000,000 for each accident or occurrence for bodily injury liability; and $100,000 for each accident or occurrence for property…