W912P518B0005_TSpecs-Am4Pages.pdf

Downstream Lock Excavation Kentucky Lock Addition W912P518B0005 Amendment 0004 Livingston County, KY

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 00 00

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 DESCRIPTION

1.2 COORDINATION WITH OTHERS

1.2.1 Coordination with Other Contractors Working Within the Same

General Area

1.2.2 Coordination with Land Owners and Utilities

1.2.2.1 General

1.2.3 Coordination with the Tennessee Valley Authority

1.3 REQUIRED SEQUENCING OF WORK

1.4 WATER SURFACE ELEVATIONS AND VELOCITY INFORMATION

1.4.1 Historical and Hypothetical Information

1.4.2 Operation of Kentucky Dam

1.4.2.1 Powerhouse Operation

1.4.2.2 Spillway Gate Operation

1.4.2.3 Lock Discharge

1.4.3 Forecasts and Coordination with TVA

1.4.3.1 Powerhouse Releases

1.4.3.2 Spillway Releases

1.5 SITE ACCESS

1.5.1 Marine Access

1.5.1.1 Existing Boat Basin (West Bank)

1.5.1.2 Existing East Bank Ramp

1.5.1.3 Lake Access

1.5.2 Land Access to West Bank Area

1.6 IMPACTS TO NAVIGATION TRAFFIC AND, OPERATION OF EXISTING LOCK

1.6.1 Navigation Channel Restrictions and Information

1.6.2 Impacts to Recreational Craft

1.6.3 Loading Restrictions on Lock Monoliths

1.7 DAM SAFETY EMERGENCY ACTIONS

1.7.1 Dam Safety Training

1.7.2 Dam Safety Condition Notification

1.8 COORDINATION CONFERENCES

1.9 PARTNERING

1.10 REFERENCES

1.11 PROJECT SIGNS

1.11.1 General

1.11.2 Materials

1.11.3 Painting

1.11.4 Erection and Maintenance

1.12 CONTRACTOR'S STAGING AREA

1.13 SAFE CLEARANCE PROCEDURES

1.14 DAILY CLEANUP AND DISPOSAL

1.15 STORAGE OF EQUIPMENT AND MATERIALS

1.16 PROTECTION AND RESTORATION OF EXISTING FACILITIES

1.17 WORK BY THE GOVERNMENT CONCURRENT WITH CONTRACTOR WORK

1.18 EVALUATION OF CONTRACTOR PERFORMANCE

1.19 VETERANS EMPLOYMENT EMPHASIS FOR U.S. ARMY CORPS OF ENGINEERS

CONTRACTS

1.20 PROJECT SCHEDULE

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1.21 SUMMARY OF WORK

1.21.1 Base Scope

1.21.2 Eleven Options Scopes

1.21.2.1 Option 1

1.21.2.2 Option 2

1.21.2.3 Option 3

1.21.2.4 Option 4

1.21.2.5 Option 5aa

1.21.2.6 Option 5ab

1.21.2.7 Option 6

1.21.2.8 Option 7

1.21.2.9 Option 8

1.21.2.10 Option 9

1.21.2.11 Option 10

1.21.2.12 Option 11

1.22 MEASUREMENT AND PAYMENT

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION

3.1 AVAILABILITY AND USE OF UTILITY SERVICES

3.1.1 Contractor Responsibilities

3.1.2 Interruptions of Utilities

-- End of Section Table of Contents --

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SECTION 01 00 00

GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 DESCRIPTION

This section of the Specifications provides general information and requirements; work and access restrictions; and required coordination with others. The work covered by these Specifications consists of furnishing all equipment, labor, and materials required for performing the Downstream Lock Excavation and associated work, for the new Kentucky Lock Addition, as shown on the drawings and as described herein.

1.2 COORDINATION WITH OTHERS

Construction of features in this contract will impact or be impacted by many other organizations. The Contractor has primary responsibility to initiate the coordination and communication in a timely manner with the Contracting Officer to schedule activities of others and minimize or eliminate conflicts with others. The Contracting Officer will then determine the appropriate course of communicating with the others involved. In many cases, the Contracting Officer may determine that the Contractor should communicate directly with others while ensuring the Contracting Officer is timely informed of the decisions of the communications or actively involved in the communications. These direct communications are likely to include frequent communications with the Kentucky Lock Lockmaster and lock operator-on-duty ahead of any contractor activities that may affect the use or operation of the lock.

1.2.1 Coordination with Other Contractors Working Within the Same General Area

In addition to the provisions of Contract Clause 52.236-8 OTHER CONTRACTS, the following information is provided in the paragraphs below.

1.2.2 Coordination with Land Owners and Utilities

1.2.2.1 General

The Contractor's work area and laydown areas are located over or adjacent to underground sanitary sewer lines, underground water lines, underground and overhead electrical lines including high-voltage transmission lines, and underground and overhead telephone lines. Where known, the location of these utilities are shown on the Contract Drawings. No utility relocations are anticipated for the work activities in this Contract except for the 8" water line relocation; however, if during the course of this Contract, it is determined that utility relocations are necessary, they shall be performed by the respective owners. The Contractor is (a) responsible for field verification of exact locations with the utility owner; (b) responsible for coordination and cooperation with utility owners and scheduling access to required work areas; (c) should not assume that this list is all inclusive, and should anticipate that other utilities may be encountered. If this should occur, it is the Contractor's responsibility to notify the Contracting Officer and to coordinate the relocation of the

SECTION 01 00 00 Page 3 utility appurtenance with the utility owner.

It is understood and agreed to that the Contractor has considered in his bid all of the permanent and temporary utility appurtenances in their present or relocated positions and that no additional compensation will be allowed for delays, inconveniences, or damages sustained by him due to any interference from the utility appurtenances shown on the drawings or the operation of relocating them.

1.2.3 Coordination with the Tennessee Valley Authority

The Contractor is advised that all of the work limits of this contract are located on TVA property that contains TVA facilities, including the powerlines that cross the downstream cofferdam area. The Contractor shall ensure that access is provided to TVA personnel throughout the project site at all times and that their activities are not hindered by the Contractor's activities. Procedures shall be developed by the Contractor to ensure this access is available when the Contractor's or sub-contractor's work crews are off-duty. These provisions shall be developed in consultation with the TVA staff below and approved by the Contracting Officer.

Terry Cooper - Kentucky Hydro Plant Manager, (270) 362-1440.

Mr. Tom Walker - KY Reservation Maintenance Supervisor, (270) 362-4644.

1.3 REQUIRED SEQUENCING OF WORK

Many work activities of this contract have required predecessors to be completed before they can be initiated. These predecessors are described in the appropriate Plans or sections of these Specifications. The required sequencing of work for major activities are summarized below. In addition, required constraints and special work requirements for key activities are described below:

-As per drawing number 61N247-72, all cutting, drilling, and chipping of concrete of the existing lock will require a TVA drilling and chipping permit. An application form for this permit has been added to Appendix B FORMS AND ATTACHMENTS of these Specifications. Information required in this permit application will be the responsibility of the contractor and the timeframe required for issuing each one should be reflected in the contractor's approved schedule.

-The new maintenance building must be fully functional: prior to demolishing the old maintenance building, prior to eliminating the personnel access from the old maintenance building to the lock operations building, and prior to eliminating vehicular access from the old maintenance building to the upstream cofferdam. All the tools and machines to be relocated will only be allowed to be non-functional for one full calendar day.

- The waterline relocation must be completed prior to full demolition of the main span of the downstream bridge and prior to the excavation of material within ten feet of the waterline's existing alignment.

- If construction methods employed to demolish the three bridges crossing the lock's lower approach are anticipated to negatively affect the existing lock's efficiency at locking through vessels, then those activities employing those methods will be required to be performed during a planned outage of the existing lock. This 25 calendar day planned outage is

SECTION 01 00 00 Page 4 scheduled to commence on August 6, 2019 and be completed by August 30, 2019. If the dates of this planned outage change, then the COR will provide at least 60 calendar days notice to the contractor prior to commencement of the outage.

-The landwall grating system will need to be installed before the Terex 555 mobile crane can be positioned on the lock's lower landwall.

-The new landwall crane and personnel hoist system will have to be positioned on the existing lock's lower landwall before crane access to this area is removed, probably by excavation activities.

- If construction of the downstream stoplog slots are anticipated to negatively affect the operation of the existing lock, then those activities are required to be performed entirely within the scheduled lock outage in 2019. The lock outage duration for Option 5AA will be the 25 calendar days in August 2019 described above. If Option 5AB is exercised, the lock closure will be extended another 21 calendar days, providing for 46 calendar days total and continuous lock closure. The Contractor may submit to the Contracting Officer a request in writing to work multiple shifts during the lock closure period. Such request shall be made at least 30 calendar days in advance. It is expected that some of this scope can be accomplished before the lock closure in the area above the height of vessels transiting the lock. All but one vessel that regularly transit the lock have a maximum height above the water of approximately 13 feet. While construction activities may have to cease during vessels transiting the work zone for safety reasons, these transiting periods are usually short-lived - on the order of 10 to 20 minutes. The exception is upbound tows that are breaking a cut in the chamber. This can result in a vessel remaining in the work zone for over one hour. Transiting of red flagged vessels will also put restrictions on work activities in this area.

- The installation of all the strand anchors are predecessors to some excavation and dewatering activities as stated on the Drawings.

- Access to the downstream cofferdam work area to facilitate grouting, instrumentation, and installation of strand anchors (all scope items included in Option 8) will not be granted until substantial completion of the downstream cofferdam. The Contractor shall not anticipate this substantial completion and access to the downstream cofferdam before May 15, 2020.

- Dewatering of the downstream cofferdam cannot commence until: 1) installation and successful operation of the downstream cofferdam instrumentation system; 2) completion of the entire grouting program; and

3) installation and acceptance of all strand anchors in monoliths M-22c and M-23c and the landward strand anchors in monoliths M-30c and M-31c.

- Phase 3 Rock Excavation cannot commence until completion and acceptance of the installation of all strand anchors.

1.4 WATER SURFACE ELEVATIONS AND VELOCITY INFORMATION

The Contractor is advised that much of this project site is subject to water levels in the river directly below TVA's Kentucky Dam, and as such, is subject to large and rapid fluctuations in water surface elevations.

Data on discharges, water surface elevations, and water velocities for the project site have been provided in the Contract Plans and Specifications to help the Contractor evaluate how the tailwater conditions below Kentucky

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Dam may impact his work activities. This data is described and other pertinent information is provided in the following sections.

1.4.1 Historical and Hypothetical Information

Plots of historical river elevations over the period of 1990 to 2016;

monthly and yearly tables of hypothetical flood frequency elevations;

monthly and yearly tables of hypothetical flood duration data are provided in Drawing Numbers 1012N401-27 through 30 and included in Appendix B - FORMS AND ATTACHMENTS. The hypothetical flood frequency and flood duration data was derived using standard statistical analyses of the maximum yearly and average daily tailwater elevations (feet, NGVD 29), respectively, at Kentucky Dam from the available data from 1948 to 2016. The monthly flow duration data can be used to get an idea of the percent of time that the Dam is releasing water through its spillway bays. The maximum sustained flow release through Kentucky Dam's turbines is approximately 65,000 cfs;

therefore, any flows higher than 65,000 cfs in the duration tables indicate that the dam would be using its spillway. The Contractor is cautioned that unusual weather patterns will cause the water levels and flows at the project site to vary from the probable elevations and flows predicted in the monthly hypothetical data. Also, the Tennessee River levels at this site are affected by both water releases out of Kentucky Dam and by the elevations of the Ohio River 22 miles downstream. It is not unusual for this project site to experience high tailwater elevations when very little water is being released from Kentucky Dam. The hypothetical frequency and duration data provided in these Contract Documents take into account the effects of the Ohio River elevations since the data was derived from actual historical Tennessee River elevations, not river flows. The provided flood elevation data can be compared to the topography of the project site as shown in the Contract Drawings to help determine the susceptibility of various locations within the project site to flooding.

1.4.2 Operation of Kentucky Dam

Since water conditions at the project site are affected to a large degree by the operation of Kentucky Dam, the following information is provided to the Contractor to help in his understanding of these impacts to his work activities.

1.4.2.1 Powerhouse Operation

The powerhouse has five generation units that can discharge up to 15,000 cfs each; however, a maximum sustained release per turbine under most circumstances is approximately 13,000 cfs. Tailwater elevations could change on the order of up to four feet due to releases out of the powerhouse. These fluctuations could occur within a period of less than three hours.

1.4.2.2 Spillway Gate Operation

Each of the 24 spillway gates has three leaves. The top leaf, or flood gate, is typically not installed. During spillway releases, the spillway gate closest to the powerhouse, gate number 1, is opened first by removing the middle leaf. As additional spillway releases are needed, the middle leaves of the gates are removed going from east to west (i.e., starting on the powerhouse side and progressing to the west) in the gate number sequence 2, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23. If additional middle leaf openings are required, then they are opened in the sequence 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24. Each spillway bay releases

SECTION 01 00 00 Page 6 approximately 10,000 cubic feet per second (cfs) with the middle leaf removed. This release amount varies depending on the lake water elevation. If additional spillway releases are needed after all 24 middle leaves are removed, then the lower leaves are removed in the gate number sequence 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, and 1. Removal of the lower leaf adds an additional discharge to each spillway bay of approximately 16,000 cfs (i.e., total discharge of approximately 26,000 cfs per spillway bay). This discharge amount also varies by lake level and tailwater level. No more than one gate leaf is removed per hour (i.e., the fastest the 24 middle leaves could be removed is 24 hours). However, this maximum gate removal rate is not uncommon, and combined with the powerhouse releases, the dam's discharge can go from 5,000 cfs to 300,000 cfs in a 24 hour period. The gate leaves are reinstalled in the reverse order described above for their removal.

1.4.2.3 Lock Discharge

While the operation of the powerhouse and spillway is controlled by TVA, the operation of the navigation lock at Kentucky Dam is operated by Corps of Engineers personnel. This is a high use lock that operates 24 hours a day and usually experiences eight to twelve discharge cycles each 24 hour period. During low tailwater elevations, the Kentucky Dam tailwater area can experience an increase in water surface elevation of up to one foot during a lock discharge cycle. It takes approximately 11 to 20 minutes for a complete lock discharge.

1.4.3 Forecasts and Coordination with TVA

1.4.3.1 Powerhouse Releases

As an existing public service through a TVA telephone number/internet site (1-800-238-2264, #33 or " https://www.tva.gov/Environment/Lake-Levels/Kentucky"), the Contractor can access the anticipated schedule of operations for the hydropower units for the next calendar day, starting at 6:00 p.m. on the calendar day before.

In addition, the Contractor can call TVA's River Operation office at 865-632-6065 to obtain average daily dam discharge forecasts that cover a timeframe 8 calendar days into the future. However, due to limited accuracy in weather forecasting and the complexity of the power release scheduling, these 8 calendar day forecast can be very inaccurate.

1.4.3.2 Spillway Releases

A communication system will be established that will allow TVA's onsite dam operations personnel to inform the Contractor of impending spillway gate changes as soon as possible after a decision is made by TVA on the gate change schedule. Under some flood conditions, the need and approximate scope of the start of these spillway operations may be known up to two calendar days in advance of the spillway releases. However, in most cases, the advance knowledge of the start of spillway operations will be less than two calendar days. In some cases, the warning for the impending start of spillway operations may only be a few hours. For example, during the summer of 1994, an isolated, intense summer thunderstorm dumped several inches of rainfall within the local watershed of the Kentucky Lake and Barkley Lake pools that caused Kentucky Dam to start spillway releases in the overnight hours after the afternoon/early evening storm. This storm event was so isolated, it did not affect any other TVA reservoirs.

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1.5 SITE ACCESS

In addition to the site restrictions described in the above Sections and elsewhere in these Specifications and Contract Plans, the Contractor is advised that other access restrictions will apply to both land and water based activities in the project work area. These restrictions are defined in the following sections. In addition, the Contractor shall adhere to all load restrictions and speed limits on public roads when hauling material to and from the project site.

1.5.1 Marine Access

The Contract Plans show three locations for the Contractor to gain access to marine equipment from the shore and are further described in the following sections. The use or construction of other marine access locations within the project area will not be permitted without prior written approval by the Contracting Officer. It is likely that permission to use an alternate marine access location will depend at least partially on an environmental assessment as described in Section 01 57 19 TEMPORARY ENVIRONMENTAL CONTROLS of these Specifications. The Contractor is advised that the Downstream Cofferdam contractor is using or has used all three of these location for marine access. This Contractor's use of these areas will need to be coordinated and planned with the COR.

1.5.1.1 Existing Boat Basin (West Bank)

The west bank boat basin and its existing, unimproved earthen ramp as depicted in Drawing No. 61N247-71 can be modified by the Contractor to facilitate access to marine equipment, including dredging. The Contractor is advised that under low tailwater elevation conditions, the maximum depth of the basin is less than 5 feet deep and contains remnants of H-piles from the foundation for two temporary bents. The results of a hydrographic survey of this basin performed in March 2016 is shown in For Information Only drawing number 23N217 to provide the approximate bottom contours of the basin. If the Contractor elects to dredge this basin, then he must comply with the tailwater restrictions outlined in paragraph 1.4 WATER SURFACE ELEVATIONS AND VELOCITY INFORMATION. The Government may require that any improvements constructed by the Contractor to facilitate the usage of this site as marine access shall remain the property of the Government as determined by the Contracting Officer. Examples of improvements that may be retained by the Government include concrete or asphalt paving and mooring facilities.

1.5.1.2 Existing East Bank Ramp

An unimproved ramp is located on the east bank as shown in Drawing No.

61N247-72. The Contractor is advised that the present configuration of this ramp may not be suitable for his marine access requirements although it has been used by prior construction Contractors. The Final Supplemental Environmental Impact Statement has assessed the impacts of dredging 6,200 cubic yards of material at this location to better facilitate the off-loading of materials from barges. However, mussel relocation is required before dredging of this area and the dredging will have to be done in accordance with the seasonal fish spawning restriction. The Contractor will not be allowed to expand on this proposed plan without prior approval and environmental clearances. If approved, the dredging and any other improvements will be at the option of the Contractor and will be performed at his expense. If the Contractor elects to perform dredging or construct improvements, his work plan will require prior approval by the Contracting

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Officer. The Government will have the option to retain ownership on any improvements at the end of this Contract as determined by the Contracting Officer.

1.5.1.3 Lake Access

Previous contractors have offloaded equipment and material from barges in the area shown in Drawing No. 61N247-72. However, the existing underwater topography may affect the viability of this location depending on lake levels and upon the configuration of the vessels being used. Any modifications to underwater topography will require to conform to the requirements of Section 01 57 19, TEMPORARY ENVIRONMENTAL CONTROLS, of these Specifications and will require approval of the Contracting Officer.

1.5.2 Land Access to West Bank Area

There are two access roads off of KY Hwy 282 to the west bank project area. The southern route traverses through a shared public road. All truck traffic entering the west bank project area will be required to use this southern access route. The northern access route contains a timber bridge with an 18,000 pound load limit and traverses a popular recreation area. The Contractor's personnel will only be allowed to access the site using cars and light trucks on this northern route. It will be the Contractor's responsibility to maintain a credible separation line to keep the public from entering his work area upstream of the downstream boundary of the boat basin.

1.6 IMPACTS TO NAVIGATION TRAFFIC AND, OPERATION OF EXISTING LOCK

The Contractor is advised that the development of his work plan and its execution shall not impede commercial navigation through the project site, except as noted elsewhere in these Specifications. Specific criteria is provided in the following two sections.

1.6.1 Navigation Channel Restrictions and Information

The Contractor is advised that the project area is heavily traversed by commercial cargo vessels on the Tennessee River. Most tows traveling this reach of river are in a 5L x 3W configuration of jumbo barges resulting in tows of approximately 1200 feet in length and 105 feet in width. Since the vast majority of tows require a double lockage through the 600 foot long lock, total lockage times of 2.5 to 3 hours are common. In calendar year 2015, an average of 8.3 tows locked-through Kentucky Lock each calendar day. As such, it is the most utilized lock in the Ohio River system and has an average delay time per tow at the top or near the top of any lock in the nation. Construction of this Downstream Lock Excavation is not expected to have significant negative impacts on the efficiency of the existing Kentucky Lock in passing vessels. It is the intent of these Plans and Specifications to minimize any negative impacts during construction.

As a result, the Contractor's work plan and resulting bids should reflect this criteria.

The Contractor's work area for some of the downstream lock excavation is immediately adjacent to the existing lock's lower approach channel. It is expected that the Contractor's approved work plan and approved safety plan will address many of the Contractor's work activities while a vessel is transiting the lower approach channel. Therefore, it is important to understand how and how long it takes vessels to transit this lower approach under different modes of lock operations.

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For the purposes of these Specifications, the definition of a vessel "transiting" the lower approach includes both upbound and downbound vessels when they are moving past the Contractor's work area (i.e., between Stations 10+00B to 19+00B) and are not actively engaged on the lock's lower river approach wall. For downbound tows where a cut is coming out of the chamber to tie to the lower river approach wall, this would not be considered a "transit" in the lower approach, even if the tow extends downstream of Station 10+00B. Likewise for an upbound tow that is tied to the lower river approach wall then moves further upstream to tie-off after its cut is taken into the chamber, this move would not be considered a "transit." Since most lockages take on the order of 2.5 hours to complete and if the lock operates under the mode of one vessel lockage upbound followed by a downbound lockage, there will be a time window of 3 to 5 hours where a commercial vessel does not transit the lower approach. When the lock operates where an upbound tow is followed by another upbound tow (i.e, "2 Up" mode), then there is a window of about 2.5 hours to 3 hours between transits. If the first upbound tow is 600' long or less in a "2 up" mode, then there may only be on the order of 30 minutes between lower approach transits. Either an upbound or downbound transit usually lasts less than 10 minutes.

The Contractor will not be allowed to have equipment or personnel riverward of the downstream cofferdam (i.e., in the lock's lower approach channel)when a vessel is transiting the lower approach. Equipment would include any physical items obstructing a vessel. The Contractor's safety plan shall address appropriate controls necessary when a red flagged barge or barges are transiting through the work area. It is anticipated that the transit of red flagged barges will curtail spark generating activites within some areas of the contractor's work zone..

The Contractor is advised that the depth of the lower approach channel is at bare minimum levels when water elevations approach the 300 foot level.

As such, the Contractor will be required to develop work plans to minimize the possibility of any of his equipment or materials being deposited in this channel and become a hazard to navigation. The ACO may require the Contractor to employ survey and removal methods during construction if equipment or material is suspected of impeding navigation due to the Contractor's activities.

The Contractor is also advised that during a lock discharge cycle, the water surface elevations can increase by up to a foot and that flow velocities can be experienced in the lock's lower approach. These increases are more severe during low river elevations and during maximum emptying valve operations at the lock. During the maximum emptying valve operating speed, the lock can complete its discharge cycle in approximately 11 minutes. The resulting flow velocities immediately downstream of the lock can be up to about 5 feet per second. The lock can and will operate with a slower emptying valve operation upon the request of the Contractor.

This will result in an approximately 20 minute discharge cycle where the resulting average peak velocities will be reduced by almost one-half from those experience during the maximum emptying valve cycle. If the contractor has sensitive activities that require even lower velocities, then even slower valve operations will be considered for limited occurrences.

The Lockmaster or lock operator on duty can be reached by phone at (270) 362-4226 or by Marine Band Radio VHF - FM 156.8 MHz (Ch.13) or 156.7 MHz (Ch.14). Channel 16 is the authorized reply and distress frequency, and

SECTION 01 00 00 Page 10 locks are not permitted to use this frequency except in an emergency involving the risk to immediate loss of life or property. The Contractor is advised that under most circumstances, he will not be allowed to use or impede the use of the two Federal mooring cells immediately downstream of the powerhouse island or the two cells on the left descending bank just upstream of the I-24 bridge. Only when given special permission by the Kentucky Lock Lockmaster will the Contractor be allowed to use these mooring facilities.

1.6.2 Impacts to Recreational Craft

The Contractor is advised that the tailwater area below Kentucky Dam is a popular area for recreational and commercial craft involved in fishing.

During optimum water and weather conditions, it is not unusual for over 30 fishing boats to be present in the one-half mile reach of river below Kentucky Dam. Even during inclement weather, except when more than two spillway bays are open, it is unusual not to see some fishing boats below the dam in daylight hours. Many of these boats motor up to just below the dam, then fish as they drift down to a point below the existing bridges' alignment, then motor back up to the dam and repeat the sequence. While most of these vessels will not be in the Contractor's active work area,his safety plan shall be developed with this knowledge and with the goal to minimize the impacts to these vessels.

1.6.3 Loading Restrictions on Lock Monoliths

To support construction activities, the concrete portions of the existing lock do not have any loading restrictions. The existing steel grating on top of the lock wall is only rated for pedestrian loads only. The refurbished crane may not be placed on the designated grating until after the grating upgrade is complete.

1.7 DAM SAFETY EMERGENCY ACTIONS

1.7.1 Dam Safety Training

At least one representative from each of the Contractor's and all of his subcontractors' work crews that are involved in excavation work shall be required to attend dam safety training. This training will be provided on-site by TVA personnel and shall consist of less than three hours of instructional video tape and site specific instructions. The training will be provided at no cost to the Contractor or subcontractors. This training is required prior to any of the described work effort above.

1.7.2 Dam Safety Condition Notification

If a potential condition threatening dam safety is noticed by the Contractor or subcontractor employees, the Contractor should immediately notify the TVA's senior powerplant operator on duty at 270-362-4569. The senior operator will then dispatch a TVA employee to view and report on the condition. As soon as possible, the Contractor shall also notify the Contracting Officer's Representative at the site or the Resident Engineer.

If the situation is a potential or actual Dam Safety Emergency, the senior powerplant operator will issue guidance through the Contracting Officer's Representative or the Resident Engineer on actions the Contractor must take to stabilize the dam safety situation or TVA will take actions in an attempt to stabilize the dam safety situation. In the event the Contracting Officer's Representative or Resident Engineer are not available, and the situation is considered critical, the senior powerplant

SECTION 01 00 00 Page 11 operator may issue this guidance directly to the Contractor. Any part of the contract work delayed or otherwise impacted due to a dam safety concern as described herein will be addressed in accordance with the Contract Clause 52.242-14 SUSPENSION OF WORK.

1.8 COORDINATION CONFERENCES

Routine coordination conferences will be scheduled by the Contracting Officer throughout the life of this project. Coordination conferences will be held to discuss contract administration, Contractor quality control, phasing, scheduling, and other aspects relating to this construction. The Corps of Engineers and the Contractor will be represented at each of these meetings. Coordination conferences will be scheduled to occur when notified by the Contracting Officer.

1.9 PARTNERING

In order to most effectively accomplish this contract, the Government urges the Contractor to join the Government in establishing a cohesive and professional project management team. Through this "partnering" relationship both entities would strive to draw on the strengths of each organization for the ultimate goal of assuring that the project’s intended results are achieved, within budget and on schedule. This endeavor seeks an environment that nurtures team building, cooperation and trust between the Government and the Contractor. The partnering relationship would be bilateral in make-up, and participation will be totally voluntary.

The first step in initiating the concept would be a joint project management team "partnering" conference attended by multiple officers from each organization representing management and the key jobsite staff of each entity. The initial conference would be held within the first ninety (90) calendar days following contract award. The Resident Engineer would chair the conference, establish its agenda and distribute minutes of the meeting.

A professional facilitator acceptable to both parties would lead the participants of the session, through the steps of team building and the formation of a problem solving mechanism within the group. The conference duration would be no more than one calendar day. Location of the conference would be offsite within a 60 mile radius of the jobsite at a facility which offers conference rooms and food service. All costs in connection with rented facilities and the facilitator would be shared equally by the Government and the Contractor. Each organization would pay other costs of its respective employees attending the conference.

Additional partnering sessions would be held no less than biannually.

Implementation of the partnering concept and philosophy would be an on-going process.

1.10 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.

U.S. ARMY CORPS OF ENGINEERS (USACE)

EP 310-1-6a (2006) Sign Standards Manual, VOL 1

EP 310-1-6b (2006) Sign Standards Manual, VOL 2, Appendices

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ER 385-1-31 (2009) The Control of Hazardous Energy

1.11 PROJECT SIGNS

1.11.1 General

Furnish and erect, within 21 calendar days after issuance of the Notice to Proceed, a PROJECT IDENTIFICATION SIGN and a SAFETY PERFORMANCE SIGN at the location directed by the Contracting Officer. Letter signs on one side only and conform to EP 310-1-6a (Section 16), EP 310-1-6b, and to the details and colors shown on the sketches included in Appendix B - FORMS AND ATTACHMENTS. Name the project as follows:

KENTUCKY LOCK DOWNSTREAM LOCK EXCAVATION

1.11.2 Materials

Construct the sign with a face sheet of 3/4 inch exterior grade plywood mounted on a substantial framework of treated 4-inch by 4-inch material.

Screws shall be commercial quality and of sizes shown.

1.11.3 Painting

Apply one prime coat and two finish coats of exterior oil paint to signs and post before lettering. Apply letters and trim to one side only using one coat of enamel of color, style, and size shown.

1.11.4 Erection and Maintenance

Erect signs at the locations designated by the Contracting Officer. Signs shall be plumb and backfill of post holes shall be well tamped to properly support the signs throughout the life of the contract. Maintain signs in good condition until completion of the contract. Remove signs from the site upon final acceptance of the contract work.

1.12 CONTRACTOR'S STAGING AREA

The Contractor may use areas within the defined Downstream Lock Excavationwork limits (see Drawing No. 61N247-72A), excluding Disposal Area D, as staging area. The building of structures, the erection of tents or other forms of protection will be permitted only at such places as the Government shall approve, and the sanitary conditions of the grounds in or about such structures shall at all times be maintained in a satisfactory manner. Temporary Contractor facilities provided during Construction shall be removed prior to final acceptance from the Government. As a minimum the area shall be left looking "broom clean" and at least as clean as before the structure placement.

1.13 SAFE CLEARANCE PROCEDURES

Project personnel use A Safe Clearance System, as stated in ER 385-1-31 and amended by the Nashville District to ensure continuity of service and safety to personnel and equipment. Any work performed which requires taking the Project's operating equipment out of service will be done only after a formal clearance is obtained by the Contracting Officer with 48-hour minimum notice. Contractor personnel shall not violate clearance.

Any violation of Safe Clearance Procedures will be grounds for removal of the offender(s). A copy of the Nashville District Safe Clearance Procedure

SECTION 01 00 00 Page 13 will be supplied to the Contractor upon request.

1.14 DAILY CLEANUP AND DISPOSAL

Work areas shall be kept reasonably neat on a daily basis. Debris resulting from the work, such as empty paint cans, packing cases, scrap lumber, oil and grease spills, and other debris shall be collected, removed, and disposed of off-site at least once per week. Government trash cans, dump boxes and other containers shall not be used. Liquid waste shall not be disposed of in existing drains.

1.15 STORAGE OF EQUIPMENT AND MATERIALS

Storage of equipment and materials will be permitted only in designated staging areas. A minimum access space of three feet shall be maintained between the Contractor's stored items and existing facility equipment.

1.16 PROTECTION AND RESTORATION OF EXISTING FACILITIES

Existing facilities shall be protected whether or not shown on the drawings. Upon completion of the work, existing facilities, not included as a portion of the work, shall be left in a condition equal to the original condition prior to the contract. Costs for repair and restoration of any facilities shall be considered to be incidental to and included in the contract price.

1.17 WORK BY THE GOVERNMENT CONCURRENT WITH CONTRACTOR WORK

The Government will limit interference with the Contractor's work to the maximum reasonable extent and the Government and Contractor shall coordinate as necessary.

1.18 EVALUATION OF CONTRACTOR PERFORMANCE

The Contractor's performance will be evaluated in accordance with FAR Part

42.15 CONTRACTOR PERFORMANCE INFORMATION in the areas of quality, schedule, cost control, management, utilization of small businesses, and regulatory compliance at minimum. The evaluation will include a written narrative and rating of either exceptional, very good, satisfactory, marginal, or unsatisfactory for each. The format for the evaluation is included in Appendix B - FORMS AND ATTACHMENTS.

The Contractor's review of the evaluation shall be completed electronically at the CPARS website, http://www.cpars.gov. This website also includes guidance and the user's manual.

Upon contract award, the Contractor shall provide the Contracting Officer with the name and e-mail address of the Contractor's Representative to be registered into the system. Following initial completion by the Government, the Contractor will have sixty (60) calendar days to review, comment, and return the evaluation.

1.19 VETERANS EMPLOYMENT EMPHASIS FOR U.S. ARMY CORPS OF ENGINEERS CONTRACTS

In addition to complying with the requirements outlined in FAR Part 22.13 EQUAL OPPORTUNITY FOR VETERANS, FAR Clause 52.222-35 EQUAL OPPORTUNITY FOR

SPECIAL DISABLED VETERANS, VETERANS OF THE VIETNAM ERA, AND OTHER ELIGIBLE

VETERANS, FAR Clause 52.222-37 EMPLOYMENT REPORTS ON VETERANS, DFARS 222.13 EQUAL OPPORTUNITY FOR VETERANS, and Department of Labor regulations, U.S.

SECTION 01 00 00 Page 14

Army Corps of Engineers (USACE) contractors and subcontractors at all tiers are encouraged to promote the training and employment of U.S. veterans while performing under a USACE contract. While no set-aside, evaluation preference, or incentive applies to the solicitation or performance under the resultant contract, USACE contractors are encouraged to seek out highly qualified veterans to perform services under this contract. The following resources are available to assist USACE contractors in their outreach efforts:

a. U.S. Department of Labor Veterans employment: www.vets.gov/

b. Federal veteran employment information: www.fedshirevets.gov/index.aspx

c. Veterans’ Employment and Training Service (VETS):

http://www.dol.gov/vets/

d. Veterans Opportunity to Work (VOW) Program: http://benefits.va.gov/vow/

e. U.S. Army Warrior Transition Command Employment Index:

http://www.wct.army.mil/modules/employers/index.html

f. Hiring Our Heroes initiative:

www.uschamberfoundation.org/hiring-our-heroes

g. Guide to Hiring Veterans:

https://obamawhitehouse.archives.gov/sites/default/files/docs/ white_house_business_council_-_guide_to_hiring_veterans_0.pdf

1.20 PROJECT SCHEDULE

The Contractor shall provide project schedule submittals in accordance with Contract Clause 52.236-15 SCHEDULES FOR CONSTRUCTION CONTRACTS and as specified in Section 01 32 01 PROJECT SCHEDULE.

1.21 SUMMARY OF WORK

The scope of the Base contract and each of twelve Options are described in the paragraphs below. They are not described in the Plans and should only be described elsewhere in Section 01 22 00 of these Specifications and in the Bid Schedule. If there are any conflicts between this Section of the Specifications and Section 01 22 00 or the Bid Schedule, then Section 01 22 00 and the Bid Schedule will govern.

1.21.1 Base Scope

The scope of the Base contract has been developed in anticipation that it can be awarded based upon available funds and that it contains the critical path activities required to meet the performance period of the contract.

Significant features of work included in the base contract are:

a. Construct a new Maintenance Building and demolish the old Maintenance Building. The new Maintenance Building will be a slab-on-grade, steel framed structure that is approximately 4,000 square feet in size. The Contractor will move entire contents of the old building, including equipment, furniture, materials, tools, etc., into the new building and make it fully operational before demolishing the old building.

b. Operation and maintenance of existing upstream lock dewatering system.

The Contractor will assume operation and maintenance of this dewatering

SECTION 01 00 00 Page 15 system from the Downstream Cofferdam contractor within three months of contract award. The system is comprised of two main, electrically powered pumps, a piping network, and a system of four settling ponds.

c. Landwall grating. The Contractor shall significantly modify an approximately 1,200 square foot grating system on top of the existing lock wall. New framework will be installed in the surrounding concrete and new sub-grating will be installed to provide a system to support wheel loads for a design crane. The existing grating will be re-furbished and re-installed on top of the sub-grating to preserve the existing architectural characteristics of the lock.

d. Partial Bridge Demolition. Two of the existing three abandoned bridges that cross the existing lock's lower approach will be fully demolished in this contract. The third bridge will have its landward span removed and concrete counterweights installed to keep its remaining span stable. A fourth abandoned highway bridge will be demolished in place as it spans the project's construction demolition landfill area. The most downstream existing lock bridge cannot be fully demolished until the waterline attached to it can be relocated. This waterline relocation is included in Option 11. The scope of the Base contract only includes the bridge demolition activities that the Contractor elects to employ prior to the relocation of the waterline. Therefore, the completion of the bridge demolotion activities after relocation of the waterline are included in the scope of Option 11.

e. Phase 1 Instrumentation - Landwall. New instruments and an automated data collection system will be installed on the existing lock's landwall just downstream of an existing instrumentation system. New instruments include bi-axial tiltmeters, joint meters, load cells on selected strand anchors, saw cuts, and Relative Block Movement Devices. This new system will be incorporated into an existing system on the upstream cofferdam that includes automated piezometers and inclinometers. The Contractor will be responsible for the operation and maintenance of this entire instrumentation system during the entire contract period.

f. Phase 1 Post-TensionedStrand Anchors. Mostly vertical strand anchors will be installed on top of the existing lock's landwall from Monoliths EL-12 through EL-18b.. Thirteen and fifteen inch diameter holes will have to be drilled an average of about 150 feet through concrete and rock to install these anchors. The anchors range from 30 to 61 strands.

g. Position crane and personnel hoist system. The Contractor will pick up an existing TEREX model 500 all-terrain crane from the Corps of Engineers' Olmsted construction project approximately 70 miles from the Kentuky Lock project. The contractor shall re-furbish the crane, transport it to the Kentucky Lock project site, and position it on on the existing lock's lower landwall. The Contractor shall also acquire a personnel hoist system to position at the same location.

h. Phase 1 Overburden Excavation. Overburden down to elevation 330 will be excavated and disposed in Disposal Area A or D. The downstream extent of this excavation zone will be governed by the limits of the Downstream Cofferdam contractor work limits.

SECTION 01 00 00 Page 16

1.21.2 Eleven Options Scopes

1.21.2.1 Option 1

Phase 2 Strand Anchors. These are the four vertical strand anchors that will be installed on top of the existing lock's lower landwall on Monolith El-25.

1.21.2.2 Option 2

Phase 3 Strand Anchors. Inclined strand anchors will be installed into the existing lock's landwall near elevation 330. They will be installed from Monolith EL-11 to EL-18a.

1.21.2.3 Option 3

Phase 4 Strand Anchors. These are the ten vertical and inclined strand anchors that will be installed below the monolith top elevation in Monoliths EL-22, EL-23, EL-24 and EL-25.

1.21.2.4 Option 4

Phase 1 Grouting. This ecompasses all of the grouting along the existing lock wall, from Monolith EL-18A to El-25. It includes the Specialized Treatment Zone from Monolith EL-21 to EL-25.

1.21.2.5 Option 5aa

Cutting Downstream Bulkhead Slots. The scope of this option solely includes all the vertical cuts in the concrete wall necessary to complete the scope of completing the stoplog slots in Option 5ab. Concrete cut in this Option shall not be removed but will be stablized as shown in Drawing 68N200-12. This cutting will be to the full height of the slots and will involve underwater cutting.

1.21.2.6 Option 5ab

Completing Downstream Bulkhead Slots. The scope of this option includes all activities necessary to complete the construction of these slots. This includes the removal of the concrete cut in Option 5aa and chipping concrete above and below water to form the slots. Government furnished embedded metals will then be positioned in the slots and held by concrete placements above and below water.

1.21.2.7 Option 6

Phase 2 Overburden Excavation. Overburden will be excavated from elevation 330 down to top of rock. The downstream extent of this excavation zone will be governed by the limits of the Downstream Cofferdam contractor work limits.

1.21.2.8 Option 7

Phase 1 Rock Excavation. This phase involves rock excavation under the footprint of the Phase 2 Overburden Excavation. In addition to production holes, line drilling and pre-splitting will be incorporated in some blast areas.

SECTION 01 00 00 Page 17

1.21.2.9 Option 8

a. Downstream Cofferdam Grouting. This will consist of two grout lines with primary holes on 20 foot centers and with holes angled at 10 degrees. Final hole spacing will be dependent on grout takes. The average depth of holes will be 145 feet.

b. Phase 5 Strand Anchors. Vertical strand anchors will be installed on top of the downstream cofferdam's concrete segmental wall.

c. Phase 2 Instrumentation - Downstream Cofferdam. New instruments and an automated data collection system will be installed on the downstream cofferdam. New instruments include piezometers, inclinometers, bi-axial tiltmeters, joint meters, load cells on selected strand anchors, saw cuts, and Relative Block Movement Devices. This downstream cofferdam system will be incorporated into the previously installed instrumentation system on the existing lock wall. The Contractor will be responsible for the operation and maintenance of this entire instrumentation system during the entire contract period.

d.. Dewatering System. The Contractor will perform the initial dewatering of the downstream cofferdam and then install a permanent dewatering system for the entire…