CONSTRUCTION SPECIFICATIONS – DAM MODIFICATIONS

BEAR ROCKS WMA DAM #1 (ID 06901) AND DAM #2 (ID 06902)

OHIO COUNTY, WEST VIRGINIA

CIVIL TECH PROJECT NO. 21136

SUBMITTED TO:

MR. ZACK BROWN

WEST VIRGINIA DIVISION OF NATURAL RESOURCES

WILDLIFE RESCOURCES SECTION

SOUTH CHARLESTON, WEST VIRGINIA 25303

SUBMITTED BY:

CIVIL TECH ENGINEERING, INC.

HURRICANE, WEST VIRGINIA

REVISION 0.0 -- ISSUED DECEMBER 2, 2024

REVISION 1.0 – ISSUED MARCH 17, 2025

REVISION 2.0 – ISSUED MARCH 27, 2025

TABLE OF CONTENTS

Page No.

1.0 GENERAL CONDITIONS 1

1.01 GENERAL DESCRIPTION OF WORK 1

1.02 DEFINITIONS 2

1.03 ACCESS TO SITE 3

1.04 CONTRACT DRAWINGS AND SPECIFICATIONS 3

1.05 GRADES, POSITION AND ALIGNMENT 5

1.06 SLIDES 6

1.07 CONTROL AND REVIEW OF WORK BY THE DESIGN ENGINEER 7

1.08 SANITARY FACILITIES 7

1.09 TEMPORARY UTILITIES 7

1.10 BORROW AREA 8

1.11 TEMPORARY HAUL ROADS 9

1.12 WASTE AREA 9

1.13 FIELD OFFICE 10

1.14 SUBCONTRACTORS 10

1.15 CONSTRUCTION SCHEDULE 10

1.16 SUBSURFACE INVESTIGATION 11

1.17 QUALITY ASSURANCE AND CONTROL 11

1.18 SUBMITTALS 12

1.19 ACCEPTANCE 12

1.20 SAFETY 12

1.21 ENVIRONMENTAL PROTECTION 13

1.22 MEASUREMENT AND PAYMENT 13

2.0 TECHNICAL SPECIFICATIONS 24

2.01 MOBILIZATION AND DEMOBILIZATION 24

2.02 CLEARING AND GRUBBING 24

2.03 STRIPPING 25

2.04 EXCAVATION 25

2.05 REINFORCED CONCRETE 28

2.06 REINFORCING STEEL 39

2.07 FILL AND BACKFILL 41

2.08 COARSE AND FINE FILTER AGGREGATE 47

2.09 RIPRAP 48

2.10 FLEXAMAT PLUS 49

2.11 EROSION AND SEDIMENT CONTROL 50

2.12 CONCRETE WINGWALLS and 42-INCH DIAMETER DR32.5 HDPE PIPE 54

2.13 DEMOLISH AND DISPOSE OF EXISTING WINGWALLS 56

2.14 SEEDING, FERTILIZING AND MULCHING 56

2.15 DAM 1 AND 2 PRINCIPAL SPILLWAY RISER MODIFICATIONS,

TRASH RACK, AND REPAIRS 57

2.16 DEWATERING AND WATER CONTROL 58

2.17 CRUSHED STONE AGGREGATE, NO. 1 STONE, FISHERMAN’S

TRAIL TYPE 1, TYPE 2, AND TYPE 3, AND CONCRETE STOP BLOCKS 60

2.18 ACCESS TRAIL 62

APPENDIX A

BORING LOGS & LAB TEST RESULTS

CONSTRUCTION SPECIFICATIONS – Dam Modifications - Revision 2.0

March 27, 2025

1.0 GENERAL CONDITIONS

1.01 GENERAL DESCRIPTION OF WORK

The work to be performed as required by these Contract Documents consists of the modification of Bear Rocks Dams #1 and #2 as required to bring the structures into compliance with Dam Safety Regulations and obtain Certificates of Approval for the dams from that agency. The dams are located in the Bear Rocks WMA in Ohio County, West

Virginia. Major work items include but are not limited to:

1. Mobilization/demobilization of personnel, equipment, and materials.

2. Erosion and sediment control measures.

3. Dewatering and water control.

4. Clearing and grubbing.

5. Stripping and stockpiling topsoil.

6. Raising Dam #1 Riser and installing a new trash rack.

7. Installing a new trash rack and repairing spalling damage on Dam #2 riser.

8. Excavation (Unclassified Soil and Bedrock).

9. Fill (cohesive and random) to raise the dam crests, fill the existing emergency spillway at Dam #1, construct the downstream embankments at a 2.5:1 (H:V) slope, and place soil cover.

10. Extending the existing slip lined principal spillway pipes, demolition of existing wingwalls, and construction of new wingwalls at both Dams #1 and #2.

11. Placement of riprap at the principal spillway outlets.

12. Construction of a filter drain between the existing and new downstream dam embankments at both Dams #1 and #2.

13. Construction of concrete cut off walls in the new (Dam #1) and widened (Dam

#2) emergency spillways.

14. Placement of Flexamat on the emergency spillway berms and at the downstream toe of Dam #1.

15. Construction of Fisherman’s Trail Type 1 and Type 3 on the upstream slope of

Dams #1 and #2, respectively.

16. Concrete stop blocks (complete).

17. Construction of Fisherman’s Trails Type 2 around the reservoir perimeter.

18. Construction of Access Trails.

19. Access road construction.

20. Spread Topsoil, Seeding, and Mulching.

21. Removal of erosion and sediment control measures after the site is revegetated.

1.02 DEFINITIONS

Wherever the words defined in this section or pronouns used in their stead occur in these

Specifications, they shall have the meanings here given.

A. The word "Owner" refers to the designated representative (s) of West Virginia Division of Natural Resources (WVDNR).

B. The word "Engineer" refers to the Owner's Representative(s) which includes the

Design Engineer or other designated Owner's Representative.

C. The word "Directed" shall mean in accordance with written instructions or directions given by the Engineer.

D. The words "Equivalent", "Equal", "Necessary", "Required", "Satisfactory", or

"Proper" shall mean equal, necessary, required, satisfactory, or proper in the opinion of the Owner or Owner’s Representative when applicable to work called for or indicated on the Contract Drawings or Specifications.

E. The words "Site", "Construction Area", and "Limits of Construction" shall mean that area upon, or in which, the operations are performed, together with such areas adjacent thereto, as may be designated for the Contractor's use by the Owner or Owner’s

Representative.

F. The words "Complete", "Completed", or "Completion" shall mean full and exact compliance and conformance with the provisions and requirements expressed or implied in these Specifications and the Drawings accompanying and forming a part of the same.

G. The words "Design Drawings" shall mean the applicable plans, sections, detail(s), and the written notes and requirements thereof.

1.03 ACCESS TO SITE

Access to the site from, or across, existing roads shall be provided by the Contractor. At the time of the pre-bid meeting, the Contractor shall obtain information concerning restrictions on the use of existing roads and/or other facilities and utilities and shall plan his operations accordingly. The Contractor shall stake and become familiar with the

Construction Limits as shown on the Drawings and shall stay within those limits at all times. Location of access roads shall be coordinated with the Owner or Owner’s

Representative and approval must be obtained prior to construction. Use of roads under

Construction for access to the sites shall be at the approval of the Engineer only. Any existing roadways which are not part of the construction project that are damaged by the

Contractor shall be returned to their original condition as approved by the Owner, or the

West Virginia Department of Transportation Division of Highways (DOH) if applicable, or the Engineer at no cost to the Owner.

1.04 CONTRACT DRAWINGS AND SPECIFICATIONS

The following documents and drawings are hereby made a part of this Contract:

Description Drawing No.

Cover Sheet

Existing Site Conditions 01

Baseline Layout Information – Rock Lake (Dam No. 1) 02

Temporary Erosion & Sediment Control Measures 03

Proposed Site Plan – Rock Lake (Dam No. 1) 04

Baseline A-A and Baseline B-B Profiles P1

Section 1-1 and Section 2-2 S1

Baseline A-A Sections Sta. 0+36 – Sta. 0+89 S2

Baseline A-A Sections Sta. 1+00 – Sta. 1+75 S3

Baseline A-A Sections Sta. 2+00 – Sta. 3+00 S4

Baseline A-A Sections Sta. 3+50 – Sta. 4+50 S5

Baseline A-A Sections Sta. 5+00 – Sta. 5+79.8 S6

Baseline B-B Sections Sta. 0+29.1 – Sta. 31+50 S7

Baseline B-B Sections Sta. 1+95 – Sta. 2+05 S8

Baseline B-B Sections Sta. 2+50 – Sta. 3+88.6 S9

Baseline Layout Information – Bear Lake (Dam No. 2) 05

Proposed Site Plan – Bear Lake (Dam No. 2) 06

Baseline C-C and Baseline D-D Profiles & Section 3-3 P2

Baseline C-C Sections Sta. 0+21.7 – Sta. 2+00 S10

Baseline C-C Sections Sta. 2+50 – Sta. 3+26.6 S11

Baseline C-C Sections Sta. 3+50 – Sta. 4+69.2 S12

Baseline D-D Sections Sta. 0+00 – Sta. 0+50 S13

Baseline D-D Sections Sta. 1+00 – Sta. 1+30 S14

Baseline D-D Sections Sta. 1+35 – Sta. 2+00 S15

Baseline D-D Sections Sta. 2+50 – Sta. 3+50 S16

Riser Details – Rock Lake (Dam No. 1) D1

Trash Rack Details – Rock Lake (Dam No. 1) D2

Trash Rack Details – Bear Lake (Dam No. 2) D3

Miscellaneous Details D4

Miscellaneous Details D5

Miscellaneous Details D6

Miscellaneous Details D7

Miscellaneous Details D8

Temporary Erosion & Sediment Control Measure Details E1

1.04.1 Scope of Drawings: The Drawings and the Specifications shall be considered as fixing the extent of the Work.

1.04.2 Dimensions: Where dimensions or other information are lacking on the Drawings, or conflicts occur, the Contractor shall not scale the Drawings or proceed with the work affected, but shall appeal to the Engineer, who will furnish the necessary information.

1.04.3 Copies of Drawings Furnished: The Owner will furnish all Drawings in digital CAD format for the Contractor’s use. Specifications will be furnished in pdf format

1.04.4 Changes to Drawings: The Owner reserves the right to make minor changes or modifications to the Drawings prior to or during construction of the Work shown thereon.

The Work shall conform to these and to such other drawings relative thereto as may be furnished by the Owner prior to the signing of the Contract and to such drawings in explanation of details or minor modifications as may be furnished from time to time during construction, including such minor modifications as the Owner may consider necessary due to conditions found during the execution of the Work.

1.04.5 Voided Drawings: The Contractor shall be required to furnish receipts for copies of revised Drawings and shall thereafter be responsible for errors made in using superseded

Drawings.

1.05 GRADES, POSITION, AND ALIGNMENT

The Owner will furnish monuments and bench marks as shown on the Design Drawings for construction control. The Contractor shall cooperate in preserving and maintaining all survey reference points or monuments and bench marks. The Contractor shall, utilizing his own licensed land surveyor or professional engineer, and instruments, make whatever measurements and alignments that are necessary to enable him to construct each element of the Work, in the correct position required, corresponding to the reference points and bench marks established by the Owner. The surveyor or professional engineer shall be licensed in the State of West Virginia. All stakes or monuments destroyed by the

Contractor shall be replaced by him at no expense to the Owner.

The Engineer may check the measurements and alignments made by the Contractor. If errors are discovered in the Contractors measurements and/or alignments, the Contractor shall pay all costs in making the check survey and correcting misalignment. Other than the monuments provided by the Owner as described above, the Contractor shall furnish all survey stakes, batter boards, templates, straightedges, and other devices necessary for laying out all parts of the Work. Elevation and horizontal tolerances for construction shall be as follows:

Elevation Horizontal

Earthwork, Riprap 0.1 ft. 0.1 ft.

Cast in Place Concrete 0.01 ft. 0.01 ft.

Piping 0.01 ft. 0.01 ft.

Monuments 0.01 ft. 0.01 ft.

The Contractor shall furnish a competent survey party working under the direction of a professional surveyor or professional engineer licensed in West Virginia to obtain as built measurements as the project progresses or as directed by the Engineer. Drawings of the work shall be provided by the Contractor at the location and scale as the design sections and with adequate detail to allow the Engineer to generate As-Built Drawings. As built information shall be provided and plotted in AutoCad format as an overlay on the original design sections for the Engineer’s use in checking pay quantities and preparation of As-

Built Drawings. These measurements may be used to estimate pay quantities as required by these Specifications under the measurement and payment section for an item of work, if approved by the Owner. Pay quantities shall be calculated by the Contractor as required by these Specifications for each item of work. Pay quantities must be approved by the

Engineer and Owner.

As a minimum, the survey crew will obtain cross sections, profiles, and elevations of the work at the following intervals:

1. Initial sections before beginning any construction work. These cross sections must correspond to the design sections, must be plotted over the original design sections in AutoCad format, and must be approved by the Engineer before any work is performed onsite.

2. Before and after any undercut required and approved by the Engineer.

3. Before and after completion of each above and below ground component of the work.

The location, interval, and alignment of cross sections, profiles, and elevation shots will be approved by the Engineer. Settlement monuments shall be installed by a registered professional surveyor as shown on the Plans at completion. Initial measurements shall be obtained using GPS survey techniques and OPUS observations on one monument. The other four monuments will be shot from the OPUS point as a base. The monuments shall be tied to State Plane Grid North using NAD83 and NAVD88 as control. Initial location and elevation data shall be obtained on the monuments by the Contractor. The initial survey measurements shall be reported to the nearest 0.01 horizontal and vertical.

Payment for surveying layout, as-built measurements, and calculation of pay quantities will be made on a lump sum basis under Pay Item 1.0.

1.06 SLIDES

In the event of slides in any part of the embankment or adjacent slopes constructed under this Contract, due to negligence by the Contractor, prior to final acceptance of the Work, the Contractor shall remove the material from the slide area and shall rebuild any such portion of the slope under the direction of the Engineer. The removal and disposal of material and the rebuilding of the embankment or slope shall be performed by the

Contractor without cost to the Owner.

1.07 CONTROL AND REVIEW OF WORK BY THE DESIGN ENGINEER

The presence of the Engineer or his representative at the site is to provide the Owner a continuing source of professional advice, opinions, and recommendations based upon the field representatives’ observations of the Contractor’s work and does not include any superintending, supervision, direction, or approval of the actual work of the Contractor or the Contractor’s workers. The Engineer or his representative will inspect the construction work as required by the Owner and the Dam Safety Section of the WVDEP. The Engineer or his representative will have the authority to halt construction when, in his opinion, the

Contractor’s work is not in conformance with these Specifications or the Design Drawings.

Approval of any item of work by the Engineer or his representative shall not relieve the

Contractor of his obligation to construct the work in accordance with the approved plans and specifications, or to provide a finished product which is functional and complies with the intent of the Drawings and Specifications.

1.08 SANITARY FACILITIES

The Contractor shall observe all rules and regulations of the West Virginia Department of

Health and shall take precautions to avoid creating unsanitary conditions. Necessary sanitary conveniences for the use of employees shall be provided and maintained by the

Contractor at such points and in such a manner as shall be approved by the Owner.

1.09 TEMPORARY UTILITIES

The Contractor shall provide all equipment, labor, and materials necessary to install temporary utilities such as telephone, electricity, water, or gas which are necessary for the execution of the Work and/or the installation of the Contractor’s construction facility, including but not limited to field offices.

1.10 BORROW AREA

Fill material required for the project will include: topsoil, cohesive fill, random fill, soil cover, riprap, fine filter, and coarse filter materials. The cohesive and random fill materials and topsoil/soil cover for use in seeding and mulching will be obtained from the excavations shown on the Design Drawings and from the onsite borrow area, if required and approved by the Engineer. Borrow areas have been shown on the Design Drawings in the event the shrink/swell qualities of the excavation are not as expected and/or available material is determined to be unsuitable. The borrow areas will only be cleared and grubbed if needed for borrow and approved by the Engineer. The filter materials and riprap will be obtained from an approved offsite commercial source. Cohesive fill material for use in constructing the upstream seepage barrier and cutoff will be comprised of ML, MH, CL, and/or CH soils. Random fill for use in raising the dam, and constructing the emergency spillway berms will consist of soil, or soil/rock mixtures derived from onsite excavations and the borrow area, if required.

The Contractor will obtain samples of excavated site material and borrow materials for pre-certification testing to verify compliance with these Specifications. Testing shall be performed by the Contractor using a testing laboratory which is approved by the Owner or

Owner’s Representative, and shall include Natural Moisture Content, Atterberg Limits, Sieve Analysis with 200 wash, and Standard Proctor for each type or mixture of material encountered which is proposed for use as fill. All testing must be approved by the Engineer and shall be performed in accordance with the QA/QC Plan. Should the material not be suitable for use in accordance with the Specifications, the Contractor shall, working with the Engineer, locate an alternate onsite source(s) of borrow, and will perform sampling and testing of each borrow source and material or mixture identified by the Engineer to verify compliance in accordance with these Specifications. All borrow must be approved by the

Engineer. The borrow site shall be cleared and grubbed in accordance with these

Specifications and topsoil shall be stripped as required by the Engineer prior to beginning borrow excavation. Disposal of stumps, limbs, trees, etc., shall be as required by these

Specifications. The topsoil shall be stockpiled onsite for reclamation at completion of the project.

Excavation within an alternate borrow area (if required) shall be performed under the direct supervision of the Owner's Engineer.

At completion of the borrow operations, if required, the site(s) shall be graded to drain at a stable slope. Final slopes shall be approved by the Engineer and shall be graded with maximum and minimum slopes of 2:1 (H to V) and 2%, respectively. The site(s) shall be covered with a minimum of 6 inches of topsoil and re-vegetated in accordance with the

Seeding and Mulching Specification contained herein unless the material is obtained from a commercial borrow source. Seeding and mulching of disturbed areas located below the normal pool level of the reservoir (if any) will not be required.

Borrow stripping and stockpiling topsoil, excavation, loading, hauling, and reclamation grading shall be included in Pay Item 5.0 Excavation. Material sampling and testing from excavation and/or borrow area for compliance with these Specifications shall be included in this pay item. No separate payment shall be made for this work.

The Contractor shall comply with all federal, state, and local regulations pertaining to the borrow area. The Contractor shall also be responsible for obtaining any and all permits and license for alternate borrow area(s) which are deemed necessary to complete the project or required by the Engineer to obtain suitable material for construction.

1.11 TEMPORARY HAUL ROADS

Temporary haul roads shall be constructed and maintained so that erosion and siltation at the site are minimized and dust is controlled in such a manner as approved by the Engineer.

A water truck should be available onsite for dust suppression. No oil or waste oil is allowed for use in dust abatement procedures. Water removed by dewatering activity shall be collected and pumped to a suitable location to prevent contamination of the receiving stream. Curing water will be suitable for use as dust suppression.

1.12 WASTE AREA

The waste areas will only be cleared and grubbed if needed for waste and approved by the

Engineer. Waste soil and grubbing waste that cannot be burned or chipped shall be dispensed in the “Waste” areas as shown on the Design Drawings or as approved by the

Engineer, if not shown on the Design Drawings. The Contractor shall provide all labor, equipment, and materials necessary to provide access to the waste area at no extra cost to the Owner. Waste area fill shall be placed in a controlled manner with slopes and configurations as shown on the Drawings. Fill shall be placed and compacted in accordance with the specifications for Random Soil Fill. Oversize waste materials including rocks, boulders, stumps, etc. shall be covered with a minimum of 24 inches of soil fill and topsoil for seeding and mulching. Waste fill will be incidental to the project and no separate payment will be made.

1.13 FIELD OFFICE

A field office will be required. Field office space shall be provided for the Contractor’s and Engineer’s use and will be approved by the Engineer.

1.14 SUBCONTRACTORS

A list of subcontractors which the Contractor proposes to use in execution of the work will be submitted to the Engineer prior to beginning work. Subcontractors must be approved by the Engineer. The Owner reserves the right to reject any and all subcontractors. If rejected, the Contractor will suggest alternate subcontractors which are acceptable to the

Owner. Subcontractors shall perform their work in accordance with these Specifications and the Design Drawings. The Contractor shall hold the Owner and Engineer harmless for damage(s) caused by the subcontractor(s) in execution of the work.

1.15 CONSTRUCTION SCHEDULE

The Contractor shall submit a schedule of work activities encompassing the project from beginning to end prior to commencing construction. The schedule shall include a detailed list of equipment and personnel which will be utilized on the project. The schedule should reflect any special procedures which are required to construct the Work specified herein or shown on the Design Drawings. The schedule shall be submitted to and subject to approval by the Engineer and Owner. The Contractor shall furnish written daily and weekly summary progress reports to the Engineer, including items such as work performed and completed, equipment used, labor used, down time on equipment, weather, planned work activities for the following week, and other items which are pertinent to the successful and timely completion of the project.

1.16 SUBSURFACE INVESTIGATION

A subsurface investigation has been performed for this project. The boring locations are shown on the Design Drawings. Copies of the boring logs and laboratory test results are appended to these Specifications. The results of the subsurface investigation are not a warranty of subsurface conditions and the Owner will not be responsible for the

Contractor’s interpretation of the boring and laboratory test results. The Contractor is responsible for reviewing the construction documents, visiting, and examining the site, determining the conditions under which the work is to be performed, and conducting such investigations as he deems necessary for bidding, planning, and execution of his work. The

Engineer and Owner will not be responsible for subsurface conditions and no construction claims will be considered due to subsurface conditions.

1.17 QUALITY ASSURANCE AND CONTROL

The Contractor will provide and pay for quality control testing services during construction of the project. Testing shall be performed by an independent laboratory approved by the

Engineer. Quality assurance services will be provided by the Engineer or Owner’s representative as discussed herein. The Contractor shall prepare a Quality Control plan for review and approval of the Engineer. This plan will include all testing required by these specifications or as directed by the Engineer. The plan will also include a submittal register and a spreadsheet showing the materials to be tested, the type and frequency of the required testing and have column(s) for the results of the tests. Quality Control Testing will be performed in accordance with the QA/QC plan and as approved by the Engineer. Test results will be furnished to the Engineer as soon as they become available. Testing will include all testing required by these Specifications and as a minimum but not limited to;

soil, rock, riprap, pipe backfill, and concrete. Where allowed by the Specifications, the

Engineer may accept supplier certification of compliance in lieu of specified testing when the supplier is qualified by the WVDOH.

The Engineer will provide quality assurance inspection services. Critical construction activities shall be monitored by a qualified representative of the Owners' Engineer constantly during construction. Non-critical construction activities shall be monitored at least once per day during construction activities. Additional site inspections shall be made by the Engineer at intervals based on construction progress. These inspections shall be made to further assess the Contractor's conformance with the approved Design

Drawings and Specifications, examine construction progress, and verify adequate quality control procedures are being followed. The Engineer reserves the right to perform his own quality control testing to verify the Contractor’s test results and conformance with the approved plans and specifications.

1.18 SUBMITTALS

All information required in these Specifications shall be submitted to the Engineer. A schedule will be established at the pre-construction meeting for submitting required information. However, in general, materials specification sheets, shop drawings, etc.

should be submitted to the Engineer for review at least 15 days prior to construction unless otherwise specified herein. Materials and/or shop fabricated items which are delivered to the site or are incorporated in the final work and do not meet the Engineers approval, regardless of submittal approval, will be modified or replaced with acceptable items at no cost to the Owner.

1.19 ACCEPTANCE

Acceptance of any item constructed or manufactured under this contract by the Owner, Engineer, or any quality assurance inspector shall not relieve the Contractor of his responsibility of constructing the facility complete and functional as specified herein and shown on the Design Drawings.

1.20 SAFETY

The Contractor shall comply with all applicable state, local and federal safety requirements during execution of the project. As a minimum, safety meetings and records thereof shall be conducted with the construction crew on a weekly basis. A report shall be filed with the Owner & Engineer describing any accidents or injuries immediately following the occurrence. The Contractor shall also report all injuries or accidents to the required state and federal government agencies within the required time. The Contractor shall be responsible for safety throughout all phases of construction. The presence of the Owner or

Owner's representative including the Engineer shall not relieve the Contractor of his responsibility for safety. The Contractor shall indemnify and hold the Owner, Engineer, and any other Owner’s representative harmless from any and all liability associated with injuries and/or safety violations onsite due to the negligence of the Contractor, Subcontractor, material suppliers, or others working on the project.

1.21 ENVIRONMENTAL PROTECTION

The Contractor will fully implement and comply with environmental permits obtained by the Owner for the project. Compliance monitoring and reporting shall be the responsibility of the Contractor. Permits obtained include Dam Safety and WVDEP Construction

Stormwater Permit. Copies of these permits will be furnished by the Owner when available.

The Contractor will be fully responsible for violations and citations issued by the regulatory agencies.

1.22 MEASUREMENT AND PAYMENT

A. Lump Sum Pay Items: Lump Sum Pay Items include but are not limited to;

1. Surveying (LS)

2. Quality Control Testing (LS)

3. Mobilization and Demobilization (LS)

4. Demolish and Dispose of Existing Wingwalls (LS)

5. Raise Riser at Dam #1 and Trash Rack (LS)

6. Trash Rack and Repair Spalling at Dam #2 Riser (LS)

7. Dewatering and Water Control (LS)

Lump sum pay will be measured based on the constructed unit installed complete and functional as required by these Specifications, shown on the Design Drawings, and approved by the Engineer.

Payment for these items will include all labor, material, equipment, taxes, permits, overhead, profit, and license to provide, construct, or install the item complete as required by these Specifications, shown on the Design Drawings, and as approved by the Engineer, agency/entity having jurisdiction, and the Owner.

B. Unit Price Items Bid as “Per Unit”: Unit Price Pay Items include but are not limited to:

1. Clearing and Grubbing (AC)

2. Excavation (CY)

3. Reinforced Concrete (CY)

4. Cohesive Fill (CY)

5. Random Fill (CY)

6. Coarse Filter (CY)

7. Fine Filter (CY)

8. Riprap (CY)

9. Flexamat Plus (SY)

10. Woven Belted Silt Fence (LF)

11. Temporary 15 Inch Diameter HDPE Pipe (LF)

12. Rock Check Dam with Sump (EA)

13. Silt Bag (EA)

14. Stabilized Construction Entrance (TN)

15. Temporary Drainage Ditch (LF)

16. Concrete Wingwall (EA)

17. 42 Inch Diameter HDPE DR32.5 Pipe (LF)

18. Seeding, Fertilizing, and Mulching (AC)

19. Crushed Stone Aggregate (TN)

20. No. 1 Stone (Stabilization) (TN)

21. Fisherman’s Trail Type 1 (LF)

22. Fisherman’s Trail Type 2 (LF)

23. Fisherman’s Trail Type 3 (LF)

24. Concrete Stop Blocks (EA)

25. Access Trail (LF)

Measurement of unit price items for payment is defined herein. Payment for these items will include all labor, material, equipment, taxes, permits, overhead, profit, and license to provide, construct, or install the unit of work complete as required by these Specifications, shown on the Design Drawings, and as approved by the Engineer, agency/entity having jurisdiction, and the Owner.

C. Controlling Specification Sections: The Specification Section listed in Section “F. Pay

Items” is the primary specification controlling the pay item listed. However, the listing of this section of the specification does not limit the application of other specifications which have control on the work being performed as directed by the Engineer. The work must be performed in complete accordance with all applicable sections of the specifications as required to fully comply with the Contract Documents and as approved by the Engineer.

D. Incidental Work: All work required by these Specifications, as shown on the Design

Drawings, and required by the Engineer or entity/agency having jurisdiction which is required to construct the project complete, and for which no pay item has been provided on the Contractor’s Bid, will be considered as incidental to the pay items and no separate payment will be made. This work will include but not be limited to; temporary facilities and controls, administration, supervision, submittals, coordination, meetings, repair of existing roadways, sampling, testing, and furnishing borrow, stripping, clearing, grubbing and reclamation of borrow sites, trench excavation, pipe bedding, and backfill, sub-grade preparation, etc. if required on the plans and approved by the Engineer.

E. Alternate Methods: Where alternate methods of construction or installation are allowed by the Engineer, in these Specifications, or on the Design Drawings for an item of work, payment will be made based on the item as bid.

F. Pay Items:

1.0 SURVEYING

1. Specification: SECTION 1.05 – Item cannot exceed 5% of the contract value.

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 50% of bid price with the 1st application for payment and 50% with the last application for payment. Payment for Surveying will also include labor, equipment, and materials to install five (5) settlement monuments as shown on the

Plans, obtain the initial set of GPS measurements including horizontal and vertical location, and reporting for the same. Payment for the final 50% of this item will not be made until as-built drawings are submitted by the Contractor and approved by the Engineer.

2.0 QUALITY CONTROL TESTING

1. Specification: SECTION 1.17 – Item cannot exceed 5% of contract value.

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 10% per application with remainder after completion of all required documentation and as-built drawings.

3.0 MOBILIZATION AND DEMOBILIZATION

1. Specification: SECTION 2.01 – Item not to exceed 10% of the contract value

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 50% of the bid price with the 1st application for payment and 50% with the last application for payment.

4.0 CLEARING AND GRUBBING

1. Specification: SECTION 2.02.

2. Unit of Measurement: ACRE (AC)

3. Payment: Payment will be made at the contract unit price bid per acre for clearing and grubbing as shown on the plans and approved by the Engineer. This item will include timber cutting and stockpiling, burning of organic materials; offsite disposal of garbage and items designated by the WVDNR. The plan area approved for clearing and grubbing will be measured in the field by accurate survey and reported to the nearest 0.1 Acres.

5.0 EXCAVATION

1. Specification: SECTION 2.04.

2. Unit of Measurement: CUBIC YARD (CY)

3. Payment: Payment will be made at the contract unit price for the actual volume of excavation as shown on the Design Drawings or as approved by the Engineer, should the volume vary from that shown on the Design Drawings. Excavation shall be measured and computed to the nearest cubic yard by the method of average cross-sectional end areas. The volume of unclassified excavation shall include; topsoil (stripping), soil, and rock material designated for removal regardless of size, character, or hardness. Excavated materials shall be segregated into piles of like materials (i.e. soil cover, cohesive, random, and rock fill) and stockpiled for later use in construction of the dam modifications as shown on the plans and approved by the Engineer. Stripping of topsoil from the excavation and fill areas as shown on the Plans shall be included in the excavation pay item and shall also be paid for at the unit price bid for Excavation. This pay item includes the following work as subsidiary and no separate payment will be made:

• Preservation, maintenance, raising, and repair of existing monitoring wells including PVC casing pipe, steel protective cover, concrete surface pad, and bentonite/concrete seal.

• Excavation, saw-cutting, and any hammering necessary to remove bedrock from the project excavations. Blasting is not allowed.

• Stockpiling and hauling topsoil for revegetation.

• Borrow excavation if required including stripping, loading, and hauling material to the dams if required shall be incidental to the fill pay items and no separate payment will be made.

• Foundation excavation and the removal of all loose rock, soil, and debris from the clay cut-off below the existing emergency spillway fill at Dam 1. This work shall include hand excavation and cleanup, as well as cleaning with compressed air or pressure washer as approved by the Engineer.

6.0 REINFORCED CONCRETE

1. Specification: SECTION 2.05.

2. Unit of Measurement: CUBIC YARD (CY)

3. Payment: Payment will be made at the contract unit price for the reinforced concrete required to construct the emergency spillway cutoff walls (Dam #1 and

Dam #2) as shown on the plans. Payment will be made for the volume of reinforced concrete shown on the Design Drawings or, as approved by the Engineer if the actual volume (measured by field survey) should vary from that shown on the

Drawings. This pay item will include as subsidiary; spillway cutoff wall excavation, dewatering, furnishing and installing rebar dowels, formwork, reinforcing steel and concrete, as shown on the Design Drawings. Cut off walls in rock shall be sawcut along neat lines before excavation or hammering to remove the material from the trench. Excavation means and methods must be approved by the Engineer. No extra payment will be made for concrete placed outside the neat lines shown on the Plans.

7.1 COHESIVE FILL

7.2 RANDOM FILL

1. Specification: SECTION 2.07.

2. Unit of Measurement: CUBIC YARD (CY)

3. Payment: The volume of cohesive and random soil fill required for the project shall be measured and computed to the nearest cubic yard by the method of average cross-sectional end areas. Payment shall be made at the contract unit price for the cohesive and random fill based on the total volume of fill placed as approved by the Engineer and determined by before and after surveyed cross sections. Soil cover shall be measured as random soil fill and payment will be made at the contract unit price for random fill.

8.1 COARSE FILTER

8.2 FINE FILTER

1. Specification: SECTION 2.08.

2. Unit of Measurement: CUBIC YARD (CY)

3. Payment: The volume of coarse and fine filter materials required for the project shall be measured and computed to the nearest cubic yard by the method of average cross-sectional end areas. Payment shall be made at the contract unit price for coarse and fine filter materials based on the total volume of aggregate placed as shown on the plans or as approved by the Engineer, if different from that shown on the plans, and determined by before and after surveyed cross sections. Dewatering will be considered incidental to this item and no separate payment will be made.

This item shall include as incidental all PVC pipe, both perforated and solid, fittings, and rodent barriers, and no separate payment will be made. Coarse and fine filter material placed around 42" dia. PSW pipes as bedding or backfill and including the filter diaphragm is incidental to that pay item.

9.0 RIPRAP

1. Specification: SECTION 2.09.

2. Unit of Measurement: CUBIC YARD (CY)

3. Payment: The volume of riprap required for both PSW outlet channels shall be computed to the nearest cubic yard by multiplying the plan area by the thickness of the riprap as shown on the Design Drawings. The plan area will be measured based on an accurate field survey of the completed work. Riprap needed for

Fisherman's Trail Type 1 is incidental to that pay item. Payment will include furnishing and placing riprap from a commercial source.

10.0 FLEXAMAT PLUS

1. Specification: SECTION 2.10.

2. Unit of Measurement: SQUARE YARD (SY)

3. Payment: Payment for Flexamat Plus lined berms, and the downstream toe of

Dam #1 including; all excavation and random fill/soil cover (if required) as subsidiary shall be made on a unit cost basis per plan view square yard (installed complete) as bid for the Flexamat Plus properly constructed in accordance with the plans and as approved by the Owner. Flexamat required for overlap or trenching shall be incidental to this pay item and no separate payment will be made.

11.1 WOVEN BELTED SILT FENCE

11.2 TEMPORARY 15 INCH DIAMETER HDPE PIPE

11.3 ROCK CHECK DAMS WITH SUMP

11.4 SILT BAG

11.5 STABILIZED CONSTRUCTION ENTRANCE

11.6 TEMPORARY VEGETATED DITCH

1. Specification: SECTION 2.11.

2. Unit of Measurement: EACH (EA), LINEAR FOOT (LF), TON (TN)

Payment: The method of measurement and payment for woven belted silt fence, temporary vegetated ditch, 15” diameter temporary HDPE pipe, and maintenance in conformance with the specifications and accepted by the Owner shall be on a per linear foot basis to include all necessary materials, supplies, labor and equipment for installation, maintenance, and removal including stakes and sediment removal and disposal. Payment shall include; excavation, fill, bedding, backfill, pipe, and erosion control matting.

The method of measurement and payment for rock check dams with sumps, and silt bag installation and maintenance in conformance with the specifications and accepted by the Engineer shall be on a per each basis for rock check dams with sumps and silt bags and shall include all necessary materials, supplies, labor and equipment for installation, maintenance, and removal including stakes and sediment removal and disposal.

The method of measurement for stabilized construction entrance” shall be per ton of 3”- 6” stone installed as shown on the plans and as approved by the Owner. The unit price shall include excavation, geotextile, purchase and placement of rock, and all equipment and labor necessary for installation, maintenance, and removal. The

SCE will be removed at completion of the project and the area restored to its original condition as approved by the WVDEP unless written permission for the

SCE to remain is provided by the WVDEP.

12.1 CONCRETE WINGWALLS

12.2 42-INCH DIAMETER DR32.5 HDPE PIPE

1. Specification: SECTION 2.12.

2. Unit of Measurement: EACH (EA) AND LINEAR FOOT (LF)

3. Payment: Payment will be made at the contract unit price bid per linear foot of 42-inch diameter DR32.5 HDPE Pipe required to extend the existing principal spillway pipes at Dams #1 and #2 as shown on the Design Drawings. Work shall include all material, labor, and equipment necessary to place and construct the new pipe complete. Work shall include but not be limited to; HDPE pipe, excavation of the pipe alignment and cradle, bentonite powder bedding, cohesive soil bedding and backfill, fine filter, coarse filter, electrofusion couplers, fittings, concrete saddles, fasteners, and non-shrink grout. Payment will be made based on the price as bid for each wingwall. This pay item will also include fabricating and installation of the new principal spillway wingwalls to be constructed at the outlet of the extended principal spillway pipes at both Dams #1 and #2 complete as shown on the Design

Drawings.

13.0 DEMOLISH AND DISPOSE OF EXISTING WINGWALLS

1. Specification: SECTION 2.13

3. Payment: Payment will be made based on the lump sum price as bid. This pay item will include saw cutting, breaking, and removal of rebar protrusions at the existing concrete wingwalls at Dams #1 and #2, and disposal of offsite at an approved landfill as approved by the Owner and Engineer.

14.0 SEEDING, FERTILIZING, AND MULCHING

1. Specification: SECTION 2.14.

2. Unit of Measurement: ACRE (AC)

3. Payment: Payment will be made at the contract unit price bid per acre for the disturbed area within the construction limits as shown on the plans and as approved by the Engineer. This item will include spreading topsoil, seeding, fertilizing, and mulching all areas disturbed by construction and within the construction limits as shown on the Design Drawings which are located above the lake pools. The plan area approved for seeding and mulching by the Engineer will be measured in the field by accurate survey and reported to the nearest 0.1 Acres.

15.1 RAISE RISER AT DAM #1 AND TRASH RACK

15.2 TRASH RACK AND REPAIR SPALLING AT DAM #2 RISER

1. Specification: SECTION 2.15

3. Payment: Payment will be made based on the lump sum prices as bid for Dam #1 and Dam #2 riser modification, repair, and trash racks. Pay item 15.1 will include raising the existing principal spillway riser at Dam #1 to the elevation shown on the

Design Drawings and fabrication and installation of the trash rack. Payment will include; rebar dowels, reinforced concrete as well as all riser and trash rack components. Pay item 15.2 will include fabrication and installation of a new trash rack at Dam #2 riser, and repair of spalling damage on the riser as shown on the

Design Drawings and approved by the Engineer.

16.0 DEWATERING AND WATER CONTROL

1. Specification: SECTION 2.16.

3. Payment: 25% of the bid price with the 1st application for payment and prorated thereafter based on progress as determined by the Engineer. Payment for de-watering and water control will be made on a lump sum basis. Payment shall include but will not be limited to; plan preparation, de-watering the work areas, pumping/siphon to lower and maintain the lowered lake levels, and temporary water control as required to construct the project complete, and prevent damage to the existing dams, spillway, appurtenances, and all work in progress. The reservoir levels will be lowered slowly as required to prevent instability (sliding) in the reservoir rim and upstream dam slope. The actual drawdown rate should be based on the performance of the dam and reservoir slopes. However, as a minimum, the drain rate should not exceed 1 ft. per day.

17.1 CRUSHED STONE AGGREGATE

17.2 NO. 1 STONE (STABILIZATION)

17.3 FISHERMAN’S TRAIL TYPE 1

17.4 FISHERMAN’S TRAIL TYPE 2

17.5 FISHERMAN’S TRAIL TYPE 3

17.6 CONCRETE STOP BLOCKS

1. Specification: SECTION 2.17.

2. Unit of Measurement: TON (TN) AND LINEAR FOOT (LF)

3. Payment: Payment for the Fisherman’s Trail at Dams #1 (Type 1), Dam #2 (Type

3) and the Fisherman’s Trail around the lake perimeters (Type 2) shall be made at the Contract Unit price per linear foot for the length as shown on the Design

Drawings or as approved by the Engineer if different from that shown on the Plans.

Payment shall include all labor, equipment, and material necessary to construct the trails complete as shown on the Design Drawings including but not limited to;

excavation, riprap, fabric, crushed stone aggregate, and asphalt paving as subsidiary to this pay item. Payment for Concrete Stop Blocks shall be per each installed complete as required by these specifications and as shown on the Plans.

Payment for the Crushed Stone Aggregate and No. 1 Stone shall be made at the

Contract Unit price per ton as bid and shall include furnishing and installing the

WVDOH Class 2 aggregate and No. 1 Stone for Stabilization on the existing access roads as approved and directed by the Engineer. Payment shall be made based on certified weight tickets as approved by the Engineer and shall include; grading, fine grading and compaction as subsidiary to this item.

18.0 ACCESS TRAIL

1. Specification: SECTION 2.18.

2. Unit of Measurement: LINEAR FOOT (LF)

3. Payment: Payment for the Access Trail shall be made at the Contract Unit price per linear foot as shown on the Design Drawings or as approved by the Engineer if different from that shown on the Plans. Payment shall include all labor, equipment, and material necessary to construct the trail complete as shown on the

Design Drawings including but not limited to; excavation, fill, and seeding as subsidiary to this pay item.

2.0 TECHNICAL SPECIFICATIONS

2.01 MOBILIZATION AND DEMOBILIZATION

2.01.1 Scope: The Contractor shall mobilize to the site and begin construction within 10 days after notice to proceed. This item shall include furnishing all labor, material, and equipment necessary to deliver and assemble at the site all equipment, tools, machinery, and supplies comprising the construction facilities. All equipment, tools, machinery, and supplies shall be removed from the site within 15 days after completion of the work. This item also includes the repair and maintenance of site access roads, existing utilities, and other site maintenance necessary for performance of the work, in addition to the project sign and rain gauge.

2.01.2 Measurement and Payment: Pay items are listed below and discussed in Section 1.22:

Pay Item 3.0 Mobilization/Demobilization (LS) (Limited to 10% of Total Bid)

2.02 CLEARING & GRUBBING

2.02.1 Scope: The Contractor shall furnish all labor, materials, and equipment necessary to clear, grub, and dispose of all trees, snags, logs, brush, stumps, shrubs, limbs, rubbish, and all roots from the construction area as shown on the Design Drawings or as required by the

Engineer. Clearing can only be performed during the period of November 15 thru March

31 unless approved by the Engineer and Owner.

2.02.2 Method: Clearing shall be performed prior to stripping to avoid contamination of the topsoil with woody debris and vegetation which is not suitable for seed bed preparation.

Stump removal shall include the removal of all lateral and tap roots measuring 1 inch in diameter, or larger as approved by the Engineer. Smaller roots remaining which become mixed with the fill materials shall be removed from the fill area using a root rake and hand labor when the material is spread and prior to compaction.

Clearing and grubbing debris shall be chipped or burned. Burning will be allowed with permission and proper permits from the regulatory authorities and the Owner. Material which cannot be chipped and/or burned, will be hauled to and buried in the waste area.

Disposal of clearing debris and burn pile ashes will be as approved by the Engineer.

Clearing debris may be windrowed along the edges of the project if approved by the

Engineer and if it does not interfere with access to or use of the dam, lakes, and Wildlife

Management Area. Clearing debris or ashes from burning cannot be disposed of in the fill areas.

2.02.3 Measurement and Payment: Pay items are listed below and discussed in Section 1.22:

Pay Item 4.0 Clearing and Grubbing (AC)

2.03 STRIPPING

2.03.1 Scope: The Contractor shall furnish all labor, materials, and equipment necessary to remove and stockpile topsoil from the construction areas. The Engineer may adjust the depths and limits of stripping to ensure the removal of all organic material. The stripped material shall be stockpiled and used for re-vegetation of the construction area as directed

2.03.2 Measurement and Payment: No pay item. Stripping is paid as Excavation and no separate payment will be made. Payment includes stockpiling and protection of the stockpile for later usage. Topsoil and other soils to be used to support surface vegetation and with a few particles smaller than 2" diameter as approved by the Engineer shall be placed as soil cover as shown on the Drawings and in accordance with Section 2.07

Random Fill.

2.04 EXCAVATION

2.04.1 Scope: The Contractor shall furnish all labor, equipment, and materials to perform the required excavation necessary to construct the project complete as shown on the plans and as required to provide fill materials for the project as approved by the Engineer.

Excavations shall be made to the lines and grades as shown on the Design Drawings or as specified by the Engineer and shall be maintained free draining at all times. Material excavated may be used as fill provided it meets, or can be conditioned to meet, the

Specifications presented herein for fill. Materials which cannot be placed at once in permanent position may be temporarily…