W912P5-16-B-0004_TSpecs-Am3pgs.pdf

Downstream Cofferdam Kentucky Lock W912P5-16-B-0004 Amendment No. 0003 Livingston County 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.

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. 510N102A 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.

510N102A. 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 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. 510N102A. 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

SECTION 01 00 00 Page 7 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 Powerhouse Island

The Contractor is advised that land access to the downstream tip of the Powerhouse Island will require transit through a public parking area. This parking area is heavily used by the public during some time periods and by personal and commercial vehicles involved in construction activities for TVA on the island. Any and all transit of the Contractor's equipment and material delivery trucks through this parking lot will require the presence of at least two flagmen provided by the Contractor. The Contractor may close the landside row of parking places on the riverside half of the parking lot during his transit periods. If the Contractor elects to use this access route, a pre-condition survey of the route on all TVA roads and bridges will be required to be performed by the Contractor before its use.

Upon completion of its use by the Contractor, a post-condition survey of the route the by the Contractor will be required. Upon comparison of the two surveys, the Contracting Officer will determine if and how much repair work will be required of the Contractor to restore the route to its original condition. In addition, if the Contracting Officer determines that noticeable and unacceptable damage is occurring to the route during its use, he may direct that the Contractor immediately perform interim repairs. The cost of all measures described in this Paragraph will be considered incidental to the Superstructure Contract and will be the responsibility of the Contractor. It should be noted that the use of this route will require transit over a TVA bridge. The loading restrictions on all TVA bridges is HS-20. Access to the powerhouse island via the abandoned bridge from the east bank will not be allowed.

1.5.3 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, OPERATION OF EXISTING LOCK, AND REQUIRED

CONTRACTOR PROVIDED HELPER BOAT

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

SECTION 01 00 00 Page 8

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 95 00

FORMS AND ATTACHMENTS

PART 1 GENERAL

1.1 FORMS AND ATTACHMENTS

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

ATTACHMENTS:

1. Project Identification Sign

2. Safety Performance Sign

3 Contractor Performance Assesment Report (CPAR) Form

4 Tailwater Duration Data

5 Tailwater Frequency

6 Tailwater Plots 2010-2015

7. ENG Form 4025 Transmittal Form

8. Submittal Register

9. LRNP 385-1-2 Contractor Guidelines

10. Upstream Monoliths Water Control Final Configuration

11. 2015 USACE Kentucky Dam Mussel Survey Report

12. HQ Core Box

13. NQ Core Box

14. ENG Form 1836 Drilling Log

15. ENG Form 1836-A Drilling Log (Cont. Sheet)

16. ENG Form 4794-R) Riprap Gradation Curves

17. KY Lock Upstream Monolith Mix Designs

-- End of Section Table of Contents --

SECTION 01 95 00 Page 1

SECTION 01 95 00

FORMS AND ATTACHMENTS

PART 1 GENERAL

1.1 FORMS AND ATTACHMENTS

Listed below, and attached at the end of this section, are forms and attachments referred to in other parts of the set of technical specifications.

1. Project Identification Sign. See Section 01 00 00 GENERAL REQUIREMENTS.

2. Safety Performance Sign. See Section 01 00 00 GENERAL REQUIREMENTS.

3 Contractor Performance Assesment Report (CPAR) Form. See Section

01 00 00 GENERAL REQUIREMENTS.

4 Tailwater Duration Data. See Section 01 00 00 GENERAL REQUIREMENTS.

5 Tailwater Frequency. See Section 01 00 00 GENERAL REQUIREMENTS.

6 Tailwater Plots 2010-2015. See Section 01 00 00 GENERAL REQUIREMENTS.

7. ENG Form 4025 Transmittal Form. See Section 01 33 00 SUBMITTAL

PROCEDURES.

8. Submittal Register. See Section 01 33 00 SUBMITTAL PROCEDURES.

9. LRNP 385-1-2 Contractor Guidelines. See Section 01 35 26 GOVERNMENTAL

SAFETY REQUIREMENTS.

10. Upstream Monoliths Water Control Final Configuration. See Section

01 36 02 CONTROL OF WATER.

11. 2015 USACE Kentucky Dam Mussel Survey Report. See Section 01 57 19

TEMPORARY ENVIRONMENTAL CONTROLS.

12. HQ Core Box. See Section 02 32 00 SUBSURFACE DRILLING, SAMPLING, AND

TESTING.

13. NQ Core Box. See Section 02 32 00 SUBSURFACE DRILLING, SAMPLING, AND

TESTING.

14. ENG Form 1836 Drilling Log. See Section 02 32 00 SUBSURFACE DRILLING, SAMPLING, AND TESTING.

15. ENG Form 1836-A Drilling Log (Cont. Sheet). See Section 02 32 00

SUBSURFACE DRILLING, SAMPLING, AND TESTING.

16. ENG Form 4794-R) Riprap Gradation Curves. See Section 35 31 19 STONE

PROTECTION.

SECTION 01 95 00 Page 2

17. KY Lock Upstream Monolith Mix Designs.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section --

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FOR DUPLEX PRINTING

Kentucky Lock Addition Upstream Monolith

Concrete Mix Designs

The following concrete mix designs used were used for the construction of the Upstream Monoliths at the Kentucky Lock Addition and are provided for information only. The material sources used for these mixes met all contract requirements.

Mix No.: KY-1 (1 1/2"mix), Mass Mix for most of project.

Design Strength: 4000 psi at 90 days

Portland Cement: 315 lbs. 1.60 cf.

Class F Fly Ash: 150 lbs. 0.95 cf.

1 ½ inch Aggregate: 1170 lbs. 6.45 cf.

3/4" inch Aggregate: 1070 lbs. 7.05 cf.

Sand: 1220 lbs. 7.55 cf.

Water: 210 lbs. 3.52 cf.

Mix No: KY-2 (3/4” mix), Used at dental and medium congested area.

Design Strength: 3000 psi at 28 days

Portland Cement: 350 lbs. 1.78 cf.

Class F Fly Ash: 170 lbs. 1.04 cf.

Stone #1, (KYTC #67 Stone) 1812 lbs. 10.80 cf.

Sand: 1326 lbs. 8.14 cf.

Water: 234 lbs. 3.75 cf. (for a 0.45 WC ratio) Air Entrainment: 5 oz. 4-7% Mid-Range Water Reducer: 21 oz.

Water Cement Ratio 0.50 max Slump: 2”-4”

Mix No: KY-3 (#9 mix), Used for tight or heavily congested areas.

Design Strength: 4000 psi at 28 days

Portland Cement: 579 lbs. 2.95 cf.

Class F Fly Ash: 248 lbs. 1.52 cf.

Stone #1, (KYTC #9 Stone) 1163 lbs. 6.93 cf.

Sand: 1436 lbs. 8.82 cf.

Water: 331 lbs. 5.30 cf.

Air Entrainment: 8 oz. 4-7% Water Reducing Retarder: 12 oz.

High Range Water Reducer: 33 oz.

Water Cement Ratio 0.40 Slump: 4”-8” and river traffic at safe locations during blasting.

2. Detailed description of how explosives will be transported to the site, safely stored, secured, and managed once on site and on water, and incorporated into the work.

3. Detailed description of notifications and immediate actions that will be taken in the event of fire or collision on the drill barge or any accidents or fire involving explosives.

4. Detailed description of emergency notifications which includes the location and telephone numbers of hospitals, fire department(s),law enforcement, points of contact for the Contractor, TVA, U.S. Army Corps of Engineers, and Federal, Local and State officials as required) and immediate actions that will be taken in the event of loss, thief, accidents, or fire involving explosives. Provide name of individual(s) responsible for making the calls. The caller(s) shall verify to the Contracting Officer that the notifications have been made.

a. Where specifically warning signs are to be erected.

b. What specific audible signals are to be sounded (lengths and intervals).

5. Procedures for drilling and loading holes having cavities; detection and removal of misfires.

6. The plan or coordination process with P & L Railroad, Kentucky Department of Transportation, Tennessee Valley Authority, U.S. Army Corps of Engineers (Nashville District), Vulcan Materials Quarry (to prevent simultaneous shots), and other pertinent entities to prevent the delay of and provide for the protection of highway, railroad, and river traffic, and the protection of the environment during blasting operations.

The Contractor shall conduct a weekly "toolbox" safety meeting and furnish a copy of the notes of the meeting to the Contracting Officer.

The Government is not responsible for any incident or injury of the workers or the public, or damage of any property or the environment due to blasting activities. The Contractor is fully responsible for all incidents affecting and injury of the workers and the public, and damage of property and the environment due to blasting activities.

The Contractor shall notify the Resident Engineer a minimum of 30 days prior to blasting dates to allow navigation notices to be published.

The Contractor shall erect signboards of adequate size stating that blasting operations are taking place in the area and such signs shall be clearly visible at all points of access to the area. The Contractor shall utilize a reliable audible warning system to ensure that all personnel in the area are forewarned of the impending detonation of explosives.

A system of audible signals to warn impending blasts shall be established prior to blasting. Signboards and flags indicating areas where blasting operations are occurring. These signs shall be clearly visible and legible from all points of access to the blast area, including from the river and from the lake near the upstream approach to the lock. The signs shall clearly describe the audible signal system for warning of impending

SECTION 31 23 06 Page 21 blasts. Blast area signs shall clearly indicate the length and nature of audible blast warning and all clear signals. All warning systems shall comply with the most stringent requirements of regulating local, state and federal agencies.

The Kentucky Lock will be active throughout the entire duration of this contract. The Contractor shall provide safety boats and operators for the purpose of keeping the upstream and downstream approach channels clear of small craft during blasting operations. The Contractor shall provide whatever means necessary to protect the passing vessels from all construction operations. From the time that loading of holes has begun until the post-blast all clear signal has been given, no moving river traffic will be allowed within 1500 feet of the blast area. To allow for communication with river traffic, for each blast the Contractor shall keep the Corps of Engineers lockmaster informed as to the times that loading of blast holes has begun and the post-blast "all clear" signal has been given.

The blaster-in-charge shall determine when to sound the five-minute warning signal. Blasting will be performed only after ensuring that all people and equipment have been removed to a safe location, and lock personnel have been appropriately notified. Blasting can only be performed when a representative of the Government is present.

The Contractor shall keep the Government's representative and operations personnel from the lock and powerhouse continuously informed as to the schedule of blasting activities.

If poor handling practices or blasting malfunctions cause excessive losses of explosives - based on the Government's judgement - all blasting in affected excavations shall cease until the Contractor submits a new explosive loss prevention plan that is approved by the Government.

3.7.1 Warnings and Signals

The Contractor shall establish a method of warning all employees on the job site of an impending blast. The signal should consist of a five minute warning signal to notify all in the area that a blast will be fired in five minutes. A second warning signal will be sounded one minute before the blast. After the blast is over, there will be an all clear signal sounded, after the blast site has been inspected for misfires by the Blaster in Charge, so all in the area understand that all blasting operations are finished. No personnel other than the Blaster in Charge and Blasting Specialist shall enter the blast area until it has been determined to be all clear.

The Contractor shall erect highly visible signboards of adequate size stating that blasting operations are taking place and shall be at all points of access to the area. The signs shall clearly describe the audible signal system for warning of impending blasts. The placement location and

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