Dismal Road final specs 11-25-24.pdf

COMMONWEALTH OF VIRGINIA

DEPARTMENT OF ENERGY

MINED LAND REPURPOSING

ABANDONED MINE LAND SECTION

DISMAL ROAD LANDSLIDE

PROJECT

NOVEMBER 2024

DIAMOND CONSULTING SERVICES, LLC

TABLE OF CONTENTS

Item Description Page

Special Conditions

1. Mobilization

2. Site Preparation

3. Sign

4. Silt Fence

5. Parking Area Upgrading

6. Revegetation

7. Drainage Pipe Repositioning

8. Safety Conditions and Ground Control Plan

9. Cleanup and Repair of Damage

10. Fugitive Dust Control

11. Aggregate

12. Excavation

13. Segmental Retaining Wall

14. Subdrain

15. Chain Link Fence

16. Paving

17. Safety Fence

18. Portal Closure-Wire Cable Net

18. Appendix I

SPECIAL CONDITIONS

DISMAL ROAD LANDSLIDE PROJECT

SECTION 1

All of the following parts considered, as a whole shall comprise the complete specifications. They are complimentary and anything called for by one and not the others shall be considered binding as though called for by all.

1.1 Bid Package (General Clauses, General Conditions, Notice and Instructions to Bidders, etc.)

1.2 Special conditions (Pages 3 – 8) and Construction Specifications (Pages 9-36).

1.3 Construction Drawings (Sheets 1 – 7)

SECTION 2 DEFINITIONS

2.1 The word “Agency” shall mean the Commonwealth of Virginia, Virginia Energy, Mined Land

Repurposing.

2.2 Where the word “Contract” is used, it shall be understood to refer either to a purchase order placed by the Agency and accepted by the Contractor together with this specification and all other documents referred to in such purchase order; or to a formal contract executed by the

Agency and the Contractor, together with this specification and other documents referred to in such formal contract.

2.3 The word “Contractor” means the person, firm or corporation named as such in the contract and includes the plural number and the feminine gender when such are named in the contract as the

Contractor.

2.4 The word “Subcontractor” means only those having a direct contract with the Contractor and it includes one who furnishes material worked to a special design but does not include one who merely furnishes material not so worked.

2.5 Where the word “Work” is used, it shall be understood to mean and include any and all labor, supervision, services, materials, machinery, equipment, tools, supplies and facilities called for by, and to complete, the Contract.

SECTION 3 SCOPE OF WORK

3.1 The work to be performed under the terms of these Specifications consists of the construction of erosion and sediment control measures as directed, installation of a wire cable net portal closure, construction of and eventual removal of a safety fence, removal of old concrete block wall, repositioning a 15” CMP, installation of a Segmental Retaining Wall (SRW) and chain link fence, upgrade of parking area, paving and the revegetation of all disturbed areas on the site known as the DISMAL ROAD LANDSLIDE PROJECT for the Commonwealth of Virginia.

3.2 The intent of these Specifications is to prescribe the complete work to be performed. The specifications are written to permit and direct the work to be conducted by the Contractors forces. If there are any contradictions between the Specifications and Drawings, the Contractor shall bring these facts to the attention of the Agency and obtain the Agency’s decision as to the true meaning and intention.

SECTION 4 TIME SCHEDULE

4.1 The Work shall be executed with sufficient personnel, equipment and material to complete the work in a period of 120 calendar days.

SECTION 5 WORK BY CONTRACTOR

The Contractor shall:

5.1 Furnish all supervision, labor, materials, tools and equipment necessary to perform all work. The work shall consist principally of the following:

5.1.1 Construct erosion and sediment control measures as directed.

5.1.2 Installation of a wire cable net portal closure

5.1.3 Construction of and eventual removal of a safety fence

5.1.4 Removal of old concrete block wall

5.1.5 Construct the Segmental Retaining Wall, Chain Link Fence

5.1.6 Repositioning a 15” CMP

5.1.7 Revegetate all disturbed areas

5.1.8 Paving of affected areas

5.1.9 Upgrade of parking area

5.2 Be responsible for receiving, unloading, storing, protecting and handling all materials and equipment furnished by the Contractor or the Agency for the execution of all work under this

Specification.

5.3 Be responsible for demurrage or claims incurred because of negligence in expediting the unloading of materials or equipment.

5.4 Replace any defective material furnished by the Contractor or any defective work performed by the Contractor’s forces at the Contractor’s own expense.

5.5 Furnish to the Agency for approval before start of work, a Schedule of Work and procedure for construction of the work covered by the contract.

5.6 Be responsible for scheduling, expediting, directing, inspecting and coordinating the work so as to complete the work in the time agreed upon. The Contractor shall immediately notify the

Agency of any impending problems, which could delay the completion of the work.

5.7 Before starting the work, contact the Agency for proper clearance and be governed by the

Agency’s instructions.

5.8 Be responsible for locating, relocating and protecting from damage existing underground and overhead utilities when such utilities are clearly visible. Be responsible for verifying the location of all utilities, pipes, etc., before initiating the work.

5.9 Confine all workers to the construction area.

5.10 Provide drinking water and containers.

5.11 Provide watchmen, safety barricades, lights, signs and other items necessary for layout and installation of the work.

5.12 Furnish all labor, stakes, templates and tools and perform all field surveying and engineering to establish construction quantities and the lines and grades necessary for layout and installation of the work.

5.13 Be completely familiar with the location and accessibility of various construction and storage sites to determine the best material and equipment handling methods for the orderly completion of the work.

5.14 Have on the work site during construction a competent superintendent, duly authorized to represent and act for the Contractor in all matters pertaining to the work covered by this

Specification.

5.15 Not perform any additional or temporary work for the Agency’s account unless on specified written orders, signed by the Agency’s authorized representative and Contractor and only in the amounts of the various types of work specified in said orders.

5.16 Work in close cooperation with the Agency and others engaged in the project so that the work will be completed with dispatch and in an orderly manner.

5.17 Continuously maintain adequate weather and fire protection of all the Contractor’s work from damage and shall protect property from damage or loss arising in connection with this contract.

The Contractor shall make good any such damage or loss.

5.18 Comply with the provisions of the “Occupational Safety and Health Act of 1970, Public Law 91-

596, 29 CFR and 30 CFR; and the Safety Codes Commission of the Commonwealth of Virginia, issued by the Department of Labor and Industry under Title 40.1 of the Code of Virginia (1950), as amended. The Contractor shall be held liable to the Agency for any health and/or safety infractions, on the Contractor’s part, which cause the Agency or surface owner to receive a citation and/or fine from any local, state or federal agency. Actual costs involved will require satisfaction, by the Contractor, to the Agency or surface owner.

5.19 Maintain the site of work in an orderly manner. The Contractor shall provide personnel and supervision to continuously clean up the construction area under this jurisdiction. Should the

Contractor refuse or fail to clean up or remove debris when requested by the Agency, it is understood that the Agency may employ others to do this work, and without further authority withhold the cost thereof from any payment due the Contractor.

5.20 Dispose of all debris and waste resulting from work at a disposal site approved by the Agency.

The Contractor shall comply with all Department of Environmental Quality requirements concerning the use, handling and disposal of petroleum products, working in or near streams and wetlands, burning or releasing emissions into the air and disposal of solid waste and hazardous or toxic waste. The Contractor shall not put or spill any materials into any drainage system, which would pollute area streams or waterways. The Contractor shall be liable for any pollution caused directly or indirectly by the Contractor’s employees or those of any subcontractors.

5.21 Furnish all special apparatus, welding machines, air compressors, hoisting equipment, tools, implements, cartage, scaffolding, ladders, planks, acetylene gas, oxygen gas, expendable materials, temporary light and heat, construction materials, shims and all other materials that may be required for the proper completion of the work.

5.22 Furnish electrical power, gas, compressed air and any other utilities required for his own use during construction. The Contractor shall remove all temporary wiring, switches, lights, piping and connections to service facilities used during construction. Such connections shall not be made without approval of the Agency.

5.23 Provide temporary supports as may be required during construction including those necessary to ensure the stability of the proposed excavation or working under mine roofs.

5.24 Not be permitted to drive any crawler type equipment or rollers on any paved roads except on rubber tire floats or similar vehicles. The Contractor shall protect pavement when it is necessary to move such type equipment across any paved roadway.

5.25 Not be permitted to keep within buildings or structures any stock of gasoline, kerosene, diesel fuel or similar flammable material. Any such flammables shall be stored in areas arranged by the Contractor, in a manner approved by the Agency and in compliance with the Department of

Environmental Quality’s AST Regulations.

5.26 Be responsible for shoring as required to prevent damage to any adjacent structures, utilities or property.

5.27 Repair to the satisfaction of the Agency, at the Contractor’s own expense, any damage to adjacent structures, utilities or property.

5.28 Allow and provide the Agency access to the work for inspection whenever it is in preparation or progress, and provide proper facilities for such access and inspection.

5.29 The drawings and specifications illustrate the general character and scope of the work. Any additional detail and other information deemed necessary by the Agency will be furnished to the

Contractor when and as required by the work.

5.30 Where the word “similar” appears on the drawings, it shall be interpreted in its general sense and not as meaning identical, and all details shall be worked out in relation to their location and their connection with other parts of the work.

5.31 The specifications are divided into several parts for convenience only, since the entire specifications must be considered as a whole. The divisions of the specifications are not intended to control the Contractor in dividing the work among subcontractors or to limit the work performed by any trade. The Contractor shall be responsible for the coordination of the trades, subcontractors and venders engaged upon this work.

5.32 The Contractor shall verify measurements or dimensions shown on the drawings at the site.

Where there are discrepancies, the Agency shall be consulted.

5.33 The Contractor shall maintain at the site, one copy of all drawings, specifications, addenda, change orders and other modifications, in good order and marked to record all changes made during construction.

5.34 Before permitting any excavation, contractor must contact Miss Utility (“Virginia 811”) at 1-800-552-7001, to confirm the location of any below ground utility lines in the work area.

The affected utility companies will mark the location of the underground lines within 48 hours after being notified. If the work is to continue more than 15 days, they will return to remark the utility lines as requested. Further details about the Miss Utility program and its requirements are available at website http://va811.com.

5.35 Per the Davis-Bacon Act, the Contractor shall display the "Workers Rights" poster on site where employees can readily see it. Please see Appendix 1 of this package or https://www.dol.gov/sites/dolgov/files/WHD/legacy/files/fedprojc.pdf.

http://va811.com/ https://www.dol.gov/sites/dolgov/files/WHD/legacy/files/fedprojc.pdf

SECTION 6 WORK BY THE AGENCY

The Agency will:

6.1 Furnish the site in an “as is” condition.

6.2 Provide limited area, not necessarily adjacent to the site, for storage purposes and for the

Contractor’s offices, change houses, sanitary stations, and tool and storage sheds. The

Contractor shall make and maintain access to the facilities.

6.3 Furnish all design and detail drawings necessary to complete the specified work. One set of

Plans and Specifications will be sold to interested bidders. Additional sets of Plans and

Specifications will be issued to the selected Contractor as needed.

6.4 Designate the manner in which the work is to be performed in the field, as conditions warrant, if not detailed in the Specifications or shown on the Drawings.

6.5 Inspect the work during its progress. No work will be considered completed until approved by the Agency.

TECHNICAL SPECIFICATIONS

1. MOBILIZATION

1.A SCOPE

This item shall consist of the mobilization and demobilization of the Contractor’s forces and equipment necessary for performing the work required to complete the Contract.

1.B PROCEDURE

1.B.1 It shall include the purchase of contract bonds (if applicable), eVA, insurance, the project sign, transportation of personnel, equipment and operating supplies to the site, and other preparatory work at the site.

1.B.2 It shall not include mobilization for any specific item of work for which payment for mobilization is provided elsewhere in the Contract.

1.B.3 This item covers mobilization for work required by the Contract at the time of award. If additional mobilization costs are incurred during performance of the contract as a result of changed or added items of work for which the Contractor is entitled to an adjustment in contract price, compensation for such costs will be included in the price adjustment for the items of work changed or added.

1.C MEASUREMENT AND PAYMENT

1.C.1 Measurement: MOBILIZATION shall be Lump Sum for the job as shown in the project

Scope of Work.

1.C.2 Payment: MOBILIZATION shall not exceed 5% of the Base Bid amount. Exceeding this limit may be basis for rejection of the bid as nonresponsive. The Base Bid amount shall be the total of all sub-items on the Bid Schedule, less the amount for Mobilization.

1.C.3 Payment for MOBILIZATION shall be the Lump Sum amount listed on the Bid Schedule and shall constitute full compensation for all labor, equipment, materials and incidentals necessary to complete the work.

1.C.4 Payment for MOBILIZATION shall be made on the basis of 50% of the Lump Sum amount on the first invoice submitted and the remaining 50% on the final invoice.

2. SITE PREPARATION

2.A SCOPE

Site preparation shall include the complete removal and disposal of all trash, garbage, scraps and debris located within the project limits. Any trash and trees are to be disposed of off-site at a

County land fill or other permissible location. It shall also include the removal of the old concrete block wall to a new location specified by and owned by the landowner.

Any damage to existing water lines, drainage pipes, and sewer systems which are not being removed will be repaired by the Contractor at their expense.

2.B PROCEDURE

2.B.1 Project Limits: stakes, flags, and/or other suitable methods shall mark the limits of the areas to be worked. Site preparation shall be strictly limited to the areas shown on the drawings, unless otherwise directed by the Inspector. The Contractor shall incorporate any adjacent areas reasonably necessary to perform the work when directed to do so by the Inspector.

2.B.2 Soft Soil Conditions: If this type of material is encountered the Contractor shall remove soft soils or compressible materials present during construction of surface drainage facilities and segmental retaining walls.

2.B.3 Disposal: The materials which are cleared, grubbed, stripped or otherwise included as part of this work shall be disposed of at a County Landfill or other permissible location.

2.C MEASUREMENT AND PAYMENT

2.C.1 Measurement: SITE PREPARATION shall be on a per Job basis for all work accepted and approved by the Agency.

2.C.2 Payment: SITE PREPARATION shall be based upon the Lump Sum amount on the Bid

Schedule. Payment as specified shall be full compensation for all labor, materials, equipment and incidentals necessary to complete the work.

3. PROJECT SIGN

3.A SCOPE

A sign shall be erected at the project site’s most convenient point of public access and in plain view. The sign shall be erected prior to the construction phase and be maintained for the project duration. The sign shall be removed upon completion of all work.

The following are minimum sign specifications:

3.A.1 Size: The sign shall be no smaller than 4’ x 8’.

3.A.2 Material: The sign shall be on exterior type plywood of at least ½” thickness and mounted on posts appropriate for the specific site. Metal of at least 12-gauge thickness may be substituted for plywood.

3.A.3 Paint: The sign shall be painted with at least two coats of paint, one of which will be a primary coat. The paint shall be a quality enamel exterior type comparable to that used in the area for commercial exterior signs. Paint color shall be white background with black letters.

3.A.4 Posts: Posts shall be 4” x 4” x 10’ treated wooden posts. They shall be firmly set 3 feet into the ground. The sign shall be mounted on the posts so that the bottom of the sign is a minimum of 3 feet off the ground.

3.A.5 Design: Letters shall be plain block letters which are 3” high. The Project Name shall be 4” high letters. The sign shall read as follows:

Payment for the PROJECT SIGN shall be included in the payment for MOBILIZATION

4. SILT FENCE

4.A SCOPE

This item shall consist of furnishing, maintaining and removing temporary silt fence as detailed on the Drawings, and as directed by the Inspector.

4.B MATERIALS

4.B.1 Silt Fence filter fabric shall be Terra Tex SD-F made by Hanes Geo Components or equivalent, and shall be specifically recommended for this purpose by the manufacturer and shall meet or exceed the following specifications:

Property Value

U.V. Resistance (ASTM D-4355) 80 %

Grab Tensile (ASTM D-4632) 125 lbs

Permittivity (ASTM D-4491) 0.1 sec-1

Flow Rate (ASTM D-4491) 8 gpm/ft2

Silt Fence posts shall be either timber stakes (2” x 2” min.) or pressed steel stakes set plumb and to sufficient depth to provide a sound anchor for the supporting wire fence and/or filter fabric.

4.C INSTALLATION

All erosion and sediment control devices shall be placed as detailed by the Drawings and/or

Specifications prior to starting the excavation or construction activities. Additional silt fence locations may be specified by the Project Inspector to accommodate changing field conditions.

Silt fences shall be constructed at the locations and to the dimensions shown on the Drawings.

Vertical wood posts for either type of structure shall be protected by means of a metal cap or other device to prevent damage when hammers are used to drive the posts into the ground.

4.D MAINTENANCE

Silt fences shall be maintained in a functionally sound condition and accumulations of silt shall be promptly removed each day. Following the usefulness of each structure, it shall be removed and disposed of in an approved location.

4.E MEASUREMENT AND PAYMENT

4.E.1 Measurement: SILT FENCE shall be measured on a Lineal Foot basis for the length of silt fence actually installed, maintained and removed.

4.E.2 Payment: SILT FENCE shall be based upon the Lineal Feet accepted and approved by the Agency and the Unit Price listed in the Bid Schedule. Payment as specified shall be full compensation for all labor, materials, equipment and incidentals required to install, maintain and remove the items specified.

5. PARKING AREA UPGRADING

5.A SCOPE

This specification covers the construction activities, equipment, and accessories necessary to safely and properly grade and shape the parking area at the home of the resident.

5.B MATERIALS

5.B.1 The aggregate that will be utilized shall consist of #21B as specified in Section 203 of the

VDOT Road and Bridge Specifications.

5.C PROCEDURE

5.C.1 All work to be performed for parking area upgrading will be scheduled after conclusion of activities on other portions of the Project which may involve hauling, paving, or other work which might re-disturb the upgrading activities.

5.D MEASUREMENT AND PAYMENT

5.D.1 Measurement for Parking Area Upgrading shall be on a per Ton basis for the amount of aggregate delivered and installed. Weight tickets shall be submitted as documentation for payment. Tickets shall include the total weight of the truck empty and loaded and the net stone weight, the name of the project, date, and type of stone.

5.D.2 Payment for Parking Area Upgrading shall be on a Unit Cost basis for the amount of aggregate delivered and accepted by the Agency and the Unit Price listed on the Bid

Schedule. Payment shall be full compensation for all labor, equipment, materials and incidentals required to perform the work.

6. REVEGETATION

6.A SCOPE

This item covers the furnishing of all labor, equipment and material for preparing the seedbed, liming, fertilizing, tilling, seeding and mulching on the designated areas. Designated areas encompass all areas and access roads within the project limits, including the disposal area.

6.B SUBMITTAL

All seed, soil amendments and mulch shall be certified by the supplier that the materials to be used in revegetation operations meet the requirements of these specifications and governing authorities.

6.C MATERIALS

6.C.1 Lime: Lime material shall be ground agricultural limestone and shall conform to the minimum Calcium Carbonate Equivalent (C.C.E.) guaranteed by the supplier and approved by the Project Inspector.

6.C.1.a Application: Lime shall be applied as directed by the Project Inspector prior to final grading (tracking) for incorporation into the soil.

6.C.1.b Lime Rate: Lime shall be spread at two (2) tons per acre.

6.C.1.c Lime Analysis: Agricultural limestone applied for seeding shall have a minimum C.C.E. of ninety percent (90%). The supplier shall certify this analysis.

6.D SEEDING

All seeding work shall be performed by the Contractor or licensed subcontractor, approved by the Agency, with demonstrated experience and who has the necessary equipment to complete all operations required. It is anticipated that all areas shall be seeded by using a hydroseeder.

However, other mechanical equipment may be used if approved by the Agency.

6.D.1 Seeding Schedule

Upon completion of grading and liming operations, the areas shall be seeded. Areas eroded by rainfall or crusted over shall be repaired prior to seeding.

The Project Inspector shall approve all seeding operation time schedules. It is recommended that the seeding operations be confined between February 15th to June

15th, and September 1st to November 1st to obtain satisfactory results. The Project

Inspector or a person designated by the Inspector shall be present during all seeding operations.

There may be some occasions such as during winter or summer months, when some areas may require temporary seeding. The Project Inspector may require these operations when deemed necessary to prevent erosion and sedimentation. Temporary seed mixtures and rates shall be applied during these periods.

6.D.2 Permanent Seed Mixture

Permanent seed mixture and rates are specified below. The Project Inspector shall approve any substitution or adjustments.

Permanent Seed

Name Lbs. /Acre

Orchard Grass 25

Annual Ryegrass 10

Red Clover 5

Ladino Clover 5

Birdsfoot Trefoil 5

Redtop grass 3

TOTAL 53

Lawn mixture for all lawn areas

Spring Seeding

3-1 through 6-1

Kentucky Bluegrass 10

Annual Ryegrass 10

Hard Fescue 15

TOTAL 35

6.D.3 Temporary Seeding

Temporary seeding mixtures and rates are specified below. The Project Inspector shall approve any substitution or adjustments.

Summer Mixture

German Foxtail Millet 40

Annual Ryegrass 20

TOTAL 60

Winter Mixture

Annual Ryegrass 20

Cereal Rye 40

TOTAL 60

Permanent seed mixtures shall be applied at the first available seeding period on all temporary seeded areas.

6.E FERTILIZER

6.E.1 Type / Rate

Fertilizer shall be standard commercial product. The rate of fertilizer applied shall be

300 pounds per acre of 19-19-19 or equivalent. Fertilizer may be applied by mechanical spreader or hydraulically by a hydroseeder. Fertilizer and seed may be applied at the same time with a hydroseeder. Water used in a hydroseeder shall have a pH between 6.0 and 9.0.

6.E.2 Inoculant

All leguminous seed shall be inoculated with inoculant specified for use on that particular seed. The Manufacturer’s directions for inoculating seed shall be followed. Inoculants shall be applied at double the manufacturer’s rate. Inoculant shall be mixed with legume seed prior to mixing with other seeds. Pre-inoculated legume seed from a supplier may be used.

6.F MULCHING

6.F.1 Wood Cellulose or Paper Fiber

Wood cellulose or paper fiber mulch shall be applied at the rate of 2000 pounds per acre.

This mulch shall be applied along with seed and fertilizer mixtures.

6.F.2 Straw or Hay Mulch

Material for mulching shall consist of dry straw or hay, free of noxious weeds. The mulch shall be reasonably bright in color and shall not be musty, moldy, caked, decayed or very dusty. Erosion control blanket may be substituted for straw or hay mulch. Mulch shall be blown or spread to a uniform depth at a rate of 2 tons per acre.

6.G MAINTENANCE

Areas reseeded or replanted shall also include construction maintenance areas where vegetation is destroyed due to repair work. Progressive seeding of small project areas shall be required during the complete project. Maintenance work for revegetation shall be reviewed prior to each seeding operation throughout the project and corrective action on prior seeded/planted areas may be required.

The Contractor at his/her cost shall complete revegetation maintenance.

The Agency’s Project Inspector shall be required to sample and test the soil on any areas, which fail to support vegetation after one reseeding/replanting by the Contractor or at the end of the guarantee period which is later.

6.H MEASUREMENT AND PAYMENT

6.H.1 Measurement: REVEGETATION shall be based on a per acre basis.

6.H.2 Payment: REVEGETATION shall be the product of the number of acres seeded and the

Unit Price per acre listed on the Bid Schedule. The Unit Price shall include all labor, seed, lime, fertilizer, mulch, equipment and apparatus necessary to complete the work.

6.I REPAIRS

Other provisions of these Contract Documents not standing, disturbances outside the project limits caused by the Contractor shall be seeded in accordance with these specifications at the

Contractors expense, under the direction of the Project Inspector.

7. DRAINAGE PIPE REPOSITIONING

7.A SCOPE

This item shall consist of repositioning the 15” drainage pipe at the location as shown on the plans. Any damage to the existing drainage pipe will be repaired by the Contractor at their expense.

7.B MATERIAL

7.B.1 Bedding for the relocated pipe shall be VDOT #26 Crusher Run Aggregate, measured and paid for as part of the relocation.

7.C PROCEDURE

7.C.1 In order to achieve positive drainage from the segmental retaining wall 6” subdrains, it is necessary to drop the inlet elevation of the 15” CMP. This will require excavating out the pipe and lowering it, then recovering it. The repositioned pipe will be laid as per guidelines specified by the manufacturer. The minimum amount of cover will be 3’.

7.D MEASUREMENT AND PAYMENT

7.D.1 Measurement for DRAINAGE PIPE REPOSITIONING shall be in units of Lineal Feet, rounded to the nearest foot and measured along the slope length. The aggregate for the bedding shall be included as part of the relocation.

7.D.2 Payment for DRAINAGE PIPE REPOSITIONING shall be the product of the Unit Price entered on the Bid Schedule and actual lineal feet installed and accepted by the Agency.

Payment shall be full compensation for all labor, equipment, materials and incidentals required to perform the work.

8. SAFETY CONDITIONS AND GROUND CONTROL PLAN

8.A SCOPE

This item consists of the procedures and protocol to be followed to ensure the safety of the public and workers in or around the construction site.

8.B PROCEDURE

8.B.1 The Contractor shall examine the area around and below the project sites for unstable rock, debris and other hazards to safety. Where necessary, the

Contractor shall scale loose rock from the face of any highwall, if present.

8.C ROADWAYS

8.C.1. Access roads, to the extent possible, will be constructed a safe distance away from highwalls to minimize exposure to falling or sliding materials.

8.C.2 Spoil banks and highwalls adjacent to all active roads will be maintained in such a manner to protect persons from hazardous conditions.

8.C.3 During construction, roadways that are exposed to upslope dumping or pushing of material will be protected by effective means utilized to ensure the safety of vehicles traveling on the roadway.

8.D MAP

8.D.1 A map will be maintained at the construction site showing residences, businesses, public buildings, and public or private roads that may be affected by construction activities. All

“Red Zone” areas of the site created during construction or existing during operations will be clearly identified on the map by highlighting or no other less effective means.

Red zones are areas where construction activities are or will be conducted that may present a potential threat or hazard to the public safety and are shown on the plans as a thick red line. The entire project area is considered a Red Zone.

8.D.2 Temporary notations to include updates of gas wells, gas lines, and other changes that might affect the project sites will be updated on the map when they become known.

8.E. WORKING IN AND AROUND RED ZONES

8.E.1 Warning signs, flagging, or other no less effective means will be used to mark work areas that are designated red zones. The method used to mark these work areas will be distinctively different from other warnings and markings utilized at the construction site.

8.E.2 Berms, fencing, or other barrier protection will be used to contain material that creates a hazardous condition upslope from red zones. In locations where berms, fencing or other barrier protection cannot be used, spotters will be used to control work so that material is prevented from rolling, slipping, or sliding down slope. No work will be performed upslope in red zones without these precautions in place where the work being performed creates a hazard for dislodged material.

8.E.3 Work activity in red zone areas will be conducted in a safe manner using proper equipment for the work being performed.

8.E.4 Residents or occupants affected by red zones will be initially notified by personal contact if they are present, or by written notice conspicuously attached to the residence or building at least three hours and no more than 24 hours prior to beginning such work.

This notification is to include the type of work that is planned, the length of time the work is expected to last, and the safety measures that will be used.

8.E.5 The contractor is responsible and accountable for the implementation of the approved plan; for ensuring work in red zone area(s) is conducted in a safe manner using proper equipment; that employees be familiar with the ground control plan and project map, red zone areas, perimeter boundaries of the project; location of gas wells/pipelines, utility lines/poles/towers, or other structures which may be impacted by the construction activities; and that “Virginia 811” be called, where applicable, at 1-

800-552-7001.

8.E.6 In the event of an injury or fatality (from the project’s activities), proper notification shall be immediately made to Virginia Energy, Mined Land Repurposing and, as applicable, to the appropriate office of the Virginia Department of Labor and Industry - Occupational

Safety and Health Compliance (OSHA), the Mine Safety and Health Administration

(MSHA), and/or the State Fire Marshall.

8.F HAZARDOUS AND TOXIC MATERIALS

If hazardous or toxic materials (i.e. PCB’s Asbestos Containing Material (ACM), lead-acid batteries, etc.) are encountered during the work, the Contractor shall immediately notify the

Agency. The Department of Environmental Quality guidelines for handling and cleaning up the site shall be followed.

8.G MEASUREMENT AND PAYMENT

There will be no separate payment for this item. If necessary, in the event that the required action will not be incidental to existing pay items, appropriate change orders shall be executed.

9. CLEAN UP AND REPAIR OF DAMAGE

9.A SCOPE

This item shall consist of cleaning up the site prior to demobilization, repairing damage and guarantee of workmanship.

9.B CLEANING UP

After all construction work is complete, prior to final payment, all exposed areas shall be cleaned and left in a sightly condition. All unused material shall be removed from the site or otherwise disposed of as directed by the Agency. Any bare areas shall be seeded and treated in accordance with the applicable specification.

9.C REPAIRING DAMAGE

Any damage done to structures, fill, pavement or other areas shall be repaired at the Contractors expense before final payment is made. In the event such damage occurs as a result of instructions from the Agency, payment will be made at the price agreed to by the Contractor and

Agency.

Contractor should locate any buried power line, buried water line, buried drain pipe and buried septic lines located in the work area and exercise care in and around these lines.

Replacement of any destroyed, functioning power, water or septic line shall be at the contractor’s expense.

9.D GUARANTEE

The Contractor shall assume responsibility for all workmanship and materials for a period of time as described in the General Conditions.

9.E MEASUREMENT AND PAYMENT

No separate measurement and payment will be made for CLEANUP AND REPAIR OF

DAMAGE. This work shall be considered incidental to Mobilization.

10. FUGITIVE DUST CONTROL

10.A SCOPE

This item shall address the requirements of the Virginia Department of Environmental Quality, Air Division that pertain to fugitive dust control.

10.B PROCEDURE

10.B.1 The Contractor shall comply with all provisions and requirements of Regulations

120-04-0101 through 120-04-0107 for fugitive dust.

10.B.2 The Contractor shall water the roads as necessary to control fugitive dust.

10.B.3 Brush and small trees cleared as a part of site preparation may be buried in compliance with the above plan or hauled to an approval disposal site.

10.C MEASUREMENT AND PAYMENT

No measurement or payment shall be made for FUGITIVE DUST CONTROL. Compliance with this section shall be considered incidental to the work.

11. AGGREGATE

11.A SCOPE

This item shall consist of providing the necessary aggregate for the Segmental Retaining Wall.

11.B MATERIAL

11.B.1 Aggregate for the Segmental Retaining Walls shall be #57.

All aggregate is as specified in Section 203 of the VDOT Road and Bridge Specifications.

11.C PROCEDURE

11.C.1 All Aggregate shall be transported and handled to prevent dirt and debris from entering the stone and to prevent spalling and breakage of the stone.

11.D MEASUREMENT AND PAYMENT

11.D.1 Measurement for AGGREGATE shall be on a per Ton basis for the amount of aggregate delivered and installed. Weight tickets shall be submitted as documentation for payment. Tickets shall include the total weight of the truck empty and loaded and the net stone weight, the name of the project, date, and type of stone.

11.D.2 Payment for AGGREGATE shall be on a Unit Cost basis for the amount of aggregate delivered and accepted by the Agency and the Unit Price listed on the Bid Schedule.

Payment shall be full compensation for all labor, equipment, materials and incidentals required to perform the work.

12. EXCAVATION

12.A SCOPE

Work under this item consists of excavation behind the Segmental Retaining Wall and the area immediately behind the residence, as shown on the Drawings.

12.B CLASSIFICATION

12.B.1 Loose Excavation under this specification will consist of earth, sediment, trees, loose and fragmented sandstone material, soft or disintegrated shales, debris and similar materials which can be moved by equipment.

12.B.2 Any Hammering of rock that is necessary will also be considered as excavation.

12.C MATERIAL REMOVAL

Material shall be hauled off site to a landfill or the disposal area.

12.D DISPOSAL

12.D.1 Contractor should note that there could be power lines and poles, water and sewer lines and meters, in and around the work site, and that a safe working distance should be established prior to beginning any work.

12.E ACCESS ROADS

12.E.1 Existing Roads:

The Contractor shall not close any existing road, unless temporary access for affected landowners has been provided and approved by the Inspector.

12.F TEMPORARY DRAINAGE CONTROL

The Contractor shall construct and maintain all necessary temporary channels, diversions, pipes or other means required to pursue excavation and work in a timely manner. The Contractor shall not constrict natural drainage nor impound water on the project unless specifically required by the Drawings and/or Specifications or approved by the Agency. This shall be considered incidental to this portion of the work, with no additional compensation to the Contractor.

12.G MEASUREMENT AND PAYMENT

12.G.1 Measurement for EXCAVATION shall be Lump Sum for all earth, sediment, trees, loose and fragmented sandstone material, soft or disintegrated shales, debris and similar materials removed, transported and placed in accordance with the lines and grades shown on the Drawings.

12.G.2 Payment for EXCAVATION shall be based upon the Lump Sum for Items 12.B.1 and

12.B.2. Payment as specified shall be full compensation for all labor, materials, equipment and incidentals necessary to complete the work. No separate payment shall be considered for access roads, haulage, disposal, site preparation or any other incidentals.

13. SEGMENTAL RETAINING WALL (SRW)

13.A SCOPE

Work includes furnishing and installing concrete retaining wall units to the lines and grades designated on the construction drawings.

The contractor shall notify the Design Engineer so that inspections can be conducted at the following times during the construction process: (1) Completion of the footer (2)

Completion of the row of bottom blocks (3) At the mid-point/halfway point of the installation of the wall.

Work shall not progress beyond each one of the individual steps outlined above until such time that the Design Engineer has conducted the inspection and approved the construction.

13.B MATERIALS

13.B.1 Delivery, Storage, and Handling

Contractor shall check the materials upon delivery to assure proper material has been received.

Contractor shall prevent excessive mud, wet cement and like materials from coming in contact with the Segmental Retaining Wall (SRW) units.

Contractor shall protect the materials from damage. Damaged material shall not be incorporated in the project.

13.B.2 Wall Units

Units shall be Redi-Rock® 41” Series Limestone Face as produced by a licensed manufacturer, See Sheet # 6 for Detail.

Wall units shall be made with Ready-Mixed concrete in accordance with ASTM C94, latest revision, and per the following chart:

Climate

Air

Content

28 Day

Compressive

Strength, psi Slump*

Negligible 1½%-

4½% 4000 5” ±1 ½”

Moderate 3%-6% 4000 5” ±1 ½”

Severe 4½%-

7½% 4000 5” ±1 ½”

*Higher slumps are allowed if achieved by use of appropriate admixtures. Notwithstanding anything stated above, all material used in the wall units must meet applicable ASTM and local requirements for exterior concrete.

Exterior block dimensions shall be uniform and consistent. Maximum dimensional deviations shall be 1% excluding the architectural surface. Maximum width (face to back) deviation including the architectural surface shall be 1.0 inch.

Exposed face shall be finished as specified. Other surfaces to be smooth form type. Dime-size bug holes on the block face may be patched and/or shake-on color stain can be used to blend into the remainder of the block face.

13.B.3 Leveling Pad and Free Draining Backfill

Leveling pad shall be VDOT #26 crusher run aggregate as specified in Section 205.03 of the

VDOT Road and Bridge specifications. See detail sheet defining Leveling Pad options for drain placement in the bottom of the foundation leveling pad.

Free Draining Backfill material shall be VDOT #57 Washed Stone and shall be placed to a minimum of 1’ width behind the back of the wall and shall extend vertically from the Leveling

Pad up to the elevation as shown on the Cross Section drawings.

Note that leveling pad VDOT #26 crusher run aggregate is measured and paid for as part of the Segmental Retaining Wall.

Washed Stone VDOT #57 behind the wall is measured and paid for as part of Aggregate, Item #11.

The VDOT #57 Washed Stone aggregate for the Subdrain at the toe of the wall is measured and paid for as part of Aggregate, Item #11.

13.B.4 Drainage

Internal and external drainage shall be evaluated by the Professional Engineer who is responsible for the final wall design.

13.B.5 Filter Fabric used to wrap the underdrain and backfill shall be a non-woven geotextile meeting the following specifications:

Property Value

Grab Tensile Strength 120 + 10 lbs.

Grab Tensile Elongation 55 5 %

Mullen Burst Strength 210 25 psi

Trapezoid Tear Strength 50 5 lbs.

Puncture Strength 70 5 lbs.

13.C PROCEDURE

13.C.1 Contractor shall excavate to the lines and grades shown on the construction drawings.

Contractor shall use caution not to over-excavate beyond the lines shown, or to disturb the base elevations beyond those shown.

13.C.2 Native foundation soil shall be compacted prior to placement of the Leveling Pad material.

13.C.3 In-situ foundation soil shall be examined by the Agency to ensure that the actual foundation soil strength meets or exceeds assumed design strength. Soil not meeting the required strength shall be removed and replaced with acceptable, compacted material.

13.C.4 Leveling Pad shall be placed as shown on the construction drawings.

13.C.5 Leveling Pad shall be placed on undisturbed native soils or suitable replacements fills.

13.C.6 Leveling Pad shall be compacted to ensure a level, hard surface on which to place the first course blocks. Pad shall be constructed to the proper elevation to ensure the final elevation shown on the plans.

13.C.7 Leveling Pad shall have an 18-inch minimum depth. Pad dimensions shall extend beyond the blocks in all directions to a distance at least equal to the depth of the pad or as designed by

Engineer.

13.C.8 For steps and pavers, a minimum of 1” - 1 ½” of free draining sand shall be screened smooth to act as a placement bed for the steps or pavers.

13.C.9 The first course of wall units shall be placed on the prepared Leveling Pad with the aesthetic surface facing out and the front edges tight together. All units shall be checked for level and alignment as they are placed.

13.C.10 Ensure that units are in full contact with Leveling Pad. Proper care shall be taken to develop straight lines and smooth curves on base course as per wall layout.

13.C.11 The backfill in front and back of the entire base row shall be placed and compacted to firmly lock them in place. Check all units again for level and alignment. All excess material shall be swept from the top of units.

13.C.12 Install next course of wall units on top of base row. Position blocks to be offset from seams of blocks below. Blocks shall be placed fully forward so knob and groove are engaged.

Check each block for proper alignment and level. Backfill to 12-inch width behind block with

Free Draining Backfill. Spread backfill in uniform lifts not exceeding 9 inches. Employ methods using lightweight compaction equipment that will not disrupt the stability or batter of the wall.

Hand-operated plate compaction equipment shall be used around the block and within 3 feet of the wall to achieve consolidation.

13.C.13 Install each subsequent course in a like manner. Repeat procedure to the extent of wall height.

13.C.14 Allowable construction tolerance at the wall face is 2 degrees vertically and 1 inch in 10 feet horizontally.

13.C.15 All walls shall be installed in accordance with local building codes and requirements.

13.D MEASUREMENT AND PAYMENT

13.D.1 Measurement of SEGMENTAL RETAINING WALL shall be of a Square Foot of wall face area basis for all wall units installed. The measurement shall include units which are buried as part of the first course embedment and any units buried as the wall turns into a slope. Leveling pad VDOT #26 crusher run aggregate is measured and paid for as part of the Segmental Retaining Wall.

Washed Stone VDOT #57 behind the wall is measured and paid for as part of

Aggregate, Item #11.

The VDOT #57 Washed Stone aggregate for the Subdrain at the toe of the wall is measured and paid for as part of Aggregate, Item #11.

13.D.2 Payment of SEGMENTAL RETAINING WALL shall be result of the amount of wall installed and accepted by the Agency and the Unit Price per Square Foot entered on the

Bid Schedule. Payment shall be full compensation for all labor, equipment, materials and incidentals required to complete the work.

14. SUBDRAIN

14.A SCOPE

This item shall consist of furnishing subdrains behind the SRW.

14.B MATERIAL

The VDOT #57 Washed Stone aggregate (as specified in Section 203.02 of the VDOT Road and

Bridge Standards) for the Subdrain at the toe of the wall is measured and paid for as part of

Aggregate, Item #11.

The Pipe used in the subdrains shall be 6” diameter perforated HDPE or Schedule 80 PVC pipe.

Any required connectors/wyes will be included in this item.

14.C PROCEDURE

Trench excavation for the subdrain shall be completed to a sufficient length and width to allow for forms, bracing and supports if necessary to prevent sidewall collapse. The Contractor shall furnish and place such supports, should they be required by subsurface conditions, depth, inclement weather, etc., and subsequently remove such support material.

Excavation beyond the required lines and grades shall be corrected at the Contractors expense by filling any resulting voids with compacted soil or VDOT #26 crusher run aggregate.

Following excavation of the trench, the trench bottom shall be hand worked to a smooth and even surface, free of depressions or high spots, with a uniform gradient conforming to the notations on the Drawings. Any excess excavated material shall be hauled to the disposal area.

The pipe sections will be straight when viewed from above and shall be bedded on a uniform slope. The grade shall avoid low spots that might pocket water or sediment. All pipe connections shall be joined with a secure, watertight coupling. The location of the subdrains will be as shown on the Drawings.

14.D MEASUREMENT AND PAYMENT

Measurement for SUBDRAIN shall be on a Lineal Foot basis for all work accepted and approved by the Agency. Excavation measurement and payment is included in the

SUBDRAIN installation.

Payment for SUBDRAIN shall be the result of the Unit Price entered on the Bid Schedule and the actual quantity accepted and approved by the Agency. Payment shall be full compensation for all labor, material, equipment and incidentals necessary to complete the work.

15. CHAIN LINK FENCE

15.A SCOPE

This item shall consist of installing a 4’ high chain link fence on top of the Segmental Retaining

Walls as shown on the Drawings.

15.B MATERIAL

15.B.1 The material consists of 4’ high, galvanized steel, 11.5 gauge, with 2.375” mesh

15.B.2 The fence will have line posts spaced every 8’. Posts will be 1.625” diameter, 16 gauge, and will include dome caps. Terminal posts will be 2.375” diameter, 16-gauge galvanized steel and will include dome caps. Line and terminal posts length will be 6’6” minimum.

15.B.3 Grout will be fast acting grout, Quickrete or equivalent.

15.C PROCEDURE

15.C.1 Fence posts will be installed by anchoring the posts into the segmental retaining wall cap block and wall blocks with grout, as shown on the Drawings.

15.D MEASUREMENT AND PAYMENT

15.D.1 Measurement for CHAIN LINK FENCE shall be on a Lineal Foot basis for all work accepted and approved by the Agency.

15.D.2 Payment for CHAIN LINK FENCE shall be the result of the Unit Price entered on the

Bid Schedule and the actual quantity accepted and approved by the Agency. Payment shall be full compensation for all labor, material, equipment and incidentals necessary to complete the work.

16. PAVING

16.A SCOPE

This item covers both (1) the paving of existing access road and (2) the capping of all existing paved surfaces. All work is to be performed in accordance with the Virginia Department of

Transportation (VDOT) Road and Bridge Specifications, latest edition.

In order for the Agency to complete this project, the existing asphalt driveway must be accessed.

The existing paved area shall be repaired by capping the driveway with 3.0 inches (rolled to 2.0 inches) of Surface Mix Pavement. If the driveway is damaged to a condition beyond repair, the damaged pavement will be completely removed, coarse aggregate base installed as needed and re-paved to the original condition. Any drainpipe damaged shall be replaced with new pipe of the same type and size.

16.B MATERIALS

16.B.1 Coarse Aggregate Base shall be type I, size 21B aggregate. All materials shall conform to the requirements of the Virginia Department of Transportation Road and Bridge

Specifications, latest edition. The thickness of the base coarse aggregate shall be 4 inches for the paving of existing access road.

16.B.2 Asphalt Concrete Surface: Asphalt pavement surface shall be (Surface Mix) SM-9.5A conforming to the requirements of Section 211 of the Virginia…