080917_revised_specs_combined.pdf

CHESAPEAKE AND OHIO CANAL

NATIONAL HISTORICAL PARK

REPAIR WATERED SECTIONS, LOCKS 5 - 22

CHOH

PMIS NO. 150819

FINAL CONSTRUCTION DOCUMENTS

NATIONAL PARK SERVICE

DENVER SERVICE CENTER

08/20/14 Revised 08/09/17

PROJECT TABLE OF CONTENTS PAGE 1

PROJECT TABLE OF CONTENTS

PAGES

SUBSURFACE EXPLORATION AND GEOTECHNICAL EVALUATION 1 - 249

DIVISION 01 -- GENERAL REQUIREMENTS

011000 CONTRACT MODIFICATIONS PROCEDURES --------------------------------- 1 - 6

011100 SUMMARY OF WORK ------------------------------------------------------------------ 1 - 3 012700 DEFINITION OF CONTRACT LINE ITEMS -------------------------------------- 1 - 9

013100 PROJECT MANAGEMENT AND COORDINATION --------------------------- 1 - 7

013216 CONSTRUCTION SCHEDULE ------------------------------------------------------- 1 - 9 013323 SUBMITTAL PROCEDURES --------------------------------------------------------- 1 - 8 MATERIAL SUBMITTAL LIST ------------------------------------------------------ 1 - 4

013233 PHOTO DOCUMENTATION FOR HISTORIC PRESERVATION PROJECTS 1 - 2

013513.22 ARCHEOLOGICAL PROTECTION ------------------------------------------------- 1 - 3 013523 SAFETY REQUIREMENTS ------------------------------------------------------------ 1 - 3

013591 HISTORIC PRESERVATION TREATMENT PROCEDURES ----------------- 1 - 7

014000 QUALITY REQUIREMENTS --------------------------------------------------------- 1 - 16 014200 REFERENCES ----------------------------------------------------------------------------- 1 - 8 015000 TEMPORARY FACILITIES AND CONTROLS ----------------------------------- 1 - 8

015719.12 NOISE & ACCOUSTICS MANAGEMENT ----------------------------------------- 1 - 2

015723 TEMPORARY STORM WATER POLLUTION PREVENTION -------------- 1 - 7

016700 PRODUCT REQUIREMENTS --------------------------------------------------------- 1 - 9 017340 EXECUTION ------------------------------------------------------------------------------ 1 - 6

017419 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL -------------- 1 - 7

APPENDIX A ------------------------------------------------------------------------------ 1 APPENDIX B ------------------------------------------------------------------------------ 1 - 5 017700 CLOSEOUT PROCEDURES ----------------------------------------------------------- 1 - 3

CLOSEOUT AND OPERATION & MAINTENANCE REQUIREMENTS - 1

DIVISION 02 – EXISTING CONDITIONS

024119 SELECTIVE DEMOLITION ------------------------------------------------------------ 1 - 3

DIVISION 03 -- CONCRETE

033000 CAST-IN-PLACE CONCRETE -------------------------------------------------------- 1 – 9 034100 PRECAST STRUCTURAL CONCRETE -------------------------------------------- 1 - 9

DIVISION 04 -- MASONRY

041000 MORTAR ------------------------------------------------------------------------------------ 1 - 2

044310 DRY STONE MASONRY RETAINING WALLS --------------------------------- 1 - 7

045000 STONE MASONRY----------------------------------------------------------------------- 1 - 6

045001 GROUTING OF EXISTING STONE MASONRY -------------------------------- 1 – 5

048200 REPOINTING OF EXISTING STONE MASONRY ------------------------------- 1 – 4

PROJECT TABLE OF CONTENTS PAGE 2

DIVISION 5

051200 STRUCTURAL STEEL FRAMING --------------------------------------------------- 1 – 7

DIVISION 6

061990 TIMBER MITER GATES COMPLETE ---------------------------------------------- 1 - 4

DIVISION 31 -- EARTHWORK

311000 SITE CLEARING ------------------------------------------------------------------------- 1 - 4 312000 EARTHWORK ---------------------------------------------------------------------------- 1 - 16 312319 DEWATERING --------------------------------------------------------------------------- 1 - 4

315000 EXCAVATION SUPPORT AND PROTECTION --------------------------------- 1 – 5

318000 CELLULAR CONCRETE MAT-------------------------------------------------------- 1 - 6

DIVISION 33 -- UTILITIES

334100 STORM UTILITY DRAINAGE PIPING -------------------------------------------- 1 - 5 334600 SUBDRAINAGE -------------------------------------------------------------------------- 1 - 4 334713 CANAL LINER ---------------------------------------------------------------------------- 1 – 9

-- End of Project Table of Contents --

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121212 CONTRACT MODIFICATION PROCEDURES

SECTION 01 10 00 – CONTRACT MODIFICATION PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. The work of this section consists of administrative and procedural requirements for contract modifications.

1.2 DEFINITIONS AND ALLOWANCES

A. Home Office Overhead: Those costs incurred in support of all of a contractor’s projects and not attributable to a specific job. The cost for home office overhead is only allowed as a percentage of all direct work excluding profit. The following items represent allowable home office overhead costs identified in Part 31 of the Federal Acquisition Regulation (FAR):

1. Rent

2. Utilities

3. Furnishings

4. Office equipment

5. Executive and management staff not exclusively assigned to the project

6. Support, accounting, and administrative staff

7. Preparation of cost proposals, estimating, and schedule analyses connected with

Modifications

8. Estimating and preconstruction services

9. Mortgage costs

10. Real estate and corporate taxes

11. Automobile maintenance and travel costs for home office personnel

12. Home office insurances i.e. structure, automotive, umbrella, flood, etc.

13. Depreciation of equipment and other assets

14. Home office supplies (paper, staples, etc.)

15. Legal services

16. Accounting and data processing

17. Professional fees/registration

B. General Conditions (Field Office Overhead): Management and administrative costs incurred on site for the designated project. Costs associated with the preparation of modifications will not be allowed. The costs for these items are to be included only in the general conditions of the modification estimate. Only in the case of a contract time extension are additional general conditions included in modifications. The following items, if applicable, are considered allowable costs for calculating General Conditions:

1. Project Manager, Assistant Project Manager

2. Superintendent, Assistant Superintendent

3. Quality Control, Safety Officer, Environmental Manager, etc.

4. Engineers

5. Travel, lodging, and per diem (as established by Federal Travel Regulations)

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6. Scheduling

7. Field Office Trailers and associated temporary utilities

8. Field office supplies

a. Mailing and couriers

b. Reproduction costs

c. Storage

d. Phones

e. Computers

f. Copiers

9. Personal vehicles i.e. Superintendent Pickup trucks

C. General Requirements: These are costs directly associated with the project and are necessary to perform the actual work of the modification. These costs shall be shown as direct costs in the estimate. The following items, if applicable, are considered allowable costs for calculating General Requirements:

1. Hoisting

2. Material handling

3. Temporary fencing

4. Port-a-lets

5. Trash removal, dumpsters

6. Barricades

7. Small tools

8. Safety supplies

9. Scaffolding

10. Daily cleaning

11. Traffic control

12. Temporary signage

13. Temporary heating and power

D. Personnel Costs: Costs included in the modification must only be for General Conditions staff and workers actually present and working on the project site. Modification costs for salaried workers are only allowed within the structure of a 40 hour week and no overtime or holiday pay will be allowed.

1. Worker Hourly Rates are costs directly associated with the individual worker and consist of the following:

a. Base Rate: This is the hourly rate paid directly to the worker

b. Labor Burden: Employer payments of all applicable burdens, this includes insurance and taxes that the business must pay on behalf of the worker to government entities and educational forums , such as:

1) Social Security

2) Medicare

3) Workers Compensation– Policy and company calculation to be made available.

4) FUTA– Cap Rate and percentage to be proportionally allocated over one year.

5) SUTA– Cap Rate and percentage to be proportionally allocated over one year.

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6) Union agreement costs – Other costs required under an enforceable collective bargaining agreement.

c. Fringe Benefits: Various non-wage compensations provided to employees such as:

1) Health Care Insurance Premiums

2) Cell Phone

3) Clothing

4) 401K and Pensions

5) Vehicle allowances

6) Gas allowance

7) Life insurance premiums

8) Disability insurance

9) Other Fringe Benefits required under an enforceable collective bargaining agreement

E. Bonuses or Deferred Compensation: No Bonus or Deferred Compensation will be allowed within any components of pricing including Home Office Overhead, General Conditions, General Requirements, Hourly Worker Rates, or the direct costs of work.

F. General Liability Insurance: An insurance policy that protects the contractor from claims resulting from bodily injury or property damage to a third party. Include this as a separate line item within all modification proposals and provide a current insurance quote upon request.

G. Performance and Payment Bonds: A performance bond is a surety bond issued by an insurance company or bank to guarantee satisfactory completion of a project. The Payment Bond guarantees that the contractor will pay the labor and material costs they have incurred. Banks and Insurance companies charge a premium for each individual project based on a sliding scale which relates to the size of the project. Include this as a separate line item in modification proposals and provide current company bonding rates upon request.

H. Builder’s Risk Insurance: This covers the contractor’s loss due to fire, high winds, or other natural forces. This is not reimbursed by the National Park Service (NPS) and shall not be included in modification proposals.

1.3 MODIFICATION PROPOSAL PRICING REQUIREMENTS

A. General:

1. Your proposal must be received in the format and within the time frame specified in the Request for Proposal letter. Costs or delays resulting from failure of contractor to submit within the time frame specified will not be compensable.

2. The proposal must be detailed with itemized lists of equipment, materials, labor, production rates, overhead, profit, and bond markup for each item. Labor costs must be itemized by craft and hourly rate, including Fringe Benefits and Labor Burden. If the costs of Fringe Benefits and Labor Burden are not itemized, it is assumed that that they are included in the hourly rate shown, or contractor is not requesting reimbursement. Contractor may utilize the government provided Contractor Estimate Form, or their own form, provided that it contains the same information and level of detail as the Gov’t provided form.

http://en.wikipedia.org/wiki/Employee http://en.wikipedia.org/wiki/Surety_bond http://en.wikipedia.org/wiki/Insurance http://en.wikipedia.org/wiki/Bank http://www.nps.gov/dscw/publicforms.htm#ct http://www.nps.gov/dscw/publicforms.htm#ct

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3. Requests for extensions of contract time as a result of this change must be justified with a Time Impact Analysis (TIA). Refer to Division 01 Specification, “Construction Schedule”, for time impact analysis requirements. TIA and associated costs must be received with the proposal by the date shown within the Request for Proposal letter.

Contractor’s failure to submit within the specified time frame will be construed as the Contractor waiving the right for additional time and no time extension will be allowed.

4. All supporting documentation used to justify the proposed modification will be made available to the Contracting Officer upon request.

5. Contractor must review and approve all subcontractor/supplier pricing in detail for proper format, scope, production rates, and pricing prior to submission to the NPS.

All delay costs associated with not reviewing and approving subcontractor/supplier pricing will be borne by the Contractor.

6. All pricing and production rates within the estimate must be based on fair and reasonable pricing and cannot include built-in contingency.

B. Labor:

1. Contractor shall estimate the cost of labor by itemizing each craft involved, indicating worker hourly rate (base rate + labor burden + fringe benefits) for each and itemizing the hours required for each craft that will be directly engaged in modification work.

Any work proposed that will require overtime work or premium pay shall be itemized separately. All rates shall be in accordance with the Davis-Bacon Act as incorporated herein. Labor Burden may include payroll taxes, Social Security, unemployment insurances, workers compensation insurance, FICA, FUTA, and other direct costs resulting from Federal, State or local laws.

2. Itemize labor costs for equipment operators separate from equipment costs.

3. The labor cost for foremen shall only be costs for related work required for the modification.

C. Materials:

1. The estimated cost for materials shall include quotes from multiple sources. Material prices must include all applicable fees and credits, including but not limited to, sales tax, freight and delivery charges, and tax rebates.

2. No markup shall be applied to any material provided by the NPS.

D. Equipment:

1. Equipment used for the project must be appropriately sized for the work being performed.

2. Do not include costs for “miscellaneous tools and equipment”, in your proposal for a replacement value of $500 or less. Costs shown in excess of $500 must be broken out separately.

3. Regardless of ownership, the rates to be used in determining equipment rental costs shall be the lowest cost from one of the following sources:

a. U.S. Army Corps of Engineers , Ownership and Operating Expense Schedule (use latest edition and applicable region)

b. Construction Blue Book

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c. Local equipment rental rates, documented by actual invoice charges, or itemized vendor quotes.

4. The estimated rental rates shall include the cost of all fuel, oil, lubrication, supplies, small tools, necessary attachments, ground engaging components, tires & tracks, routine repairs and maintenance (cost of major overhaul is not included), depreciation, storage, insurance, and all incidentals. Mobilization, if applicable, may be included for equipment solely used on the modification work but must be listed separately.

5. Estimate the full rate for equipment only for the duration that the equipment will be utilized to accomplish the work of the modification.

6. Standby unit rates used are to be in accordance with paragraph 1.3, D, 2, above. If the US Army Corp of Engineers is utilized then their standby rates prevail. If Bluebook or local equipment pricing is accepted, then ½ of the equipment costs minus any operating costs will be accepted.

7. If equipment is in standby mode due solely to a documented NPS delay, the established standby rate shall apply from the first day of the delay.

8. Equipment that is not used and on the jobsite for up to five consecutive days may be classified at standby rates, provided that the equipment is or has been used solely to perform work on the modification and will be necessary to complete additional modification work. Equipment that is still on the jobsite but not in use after five consecutive days will not be considered in the modification pricing.

9. Requests for compensation for equipment stand by time must be justified, documented and itemized separately.

10. The estimated timeframe (daily, weekly, monthly) for use of the equipment must reflect the lowest cost to the Government.

E. Establishment and Application of Overhead and Profit Percentages:

1. Home Office Overhead and Profit (OH&P) shall be applied to direct costs only. Profit shall not be applied to overhead amounts; and overhead shall not be applied to profit.

Home office overhead shall contain only allowable, allocable, and reasonable costs per the contract documents and FAR Part 31. Profit percentages are based on risk factors found in FAR Part 31which have been applied to the specific type of work included in this project. The following percentages establish the maximum allowable markups (OH&P) for contractor self-performed work:

Overhead………………10% Profit………………3.60%

2. Total aggregate limit of markup (OH&P) for contractor and subcontractors on modification work shall not exceed 25%. The NPS will not be responsible for allocation of percentages between contractor and subcontractors at any tier.

3. If contractors form a partnership, than the partnership may only receive home office overhead and profit in the same amount as an individual contractor (refer to par 1.3,E,1 above). It is the responsibility of the partners to decide on the division of revenue.

4. Combined Increases and Decreases: On proposals involving both increases and decreases in the Contract Price, the overhead and profit mark-ups are required on the net increases and deducted on net decreases.

5. At no time can profit be calculated on Overhead or itself, it must be calculated on direct costs of work only.

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PART 2 - PRODUCTS

PART 3 - EXECUTION

END OF SECTION 011000

CHOH - 150819 01 11 00 - 1

050611 SUMMARY OF WORK

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Work covered by the Contract Documents.

2. Contractor use of premises.

3. Public use of site.

4. Work Restrictions.

5. Soils Investigation Report.

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location: C&O Canal, between Locks 5 and 22, Maryland.

B. The Work consists of the following:

1. The Work includes the repair to various watered sections of the canal. Repairs include raising the towpath, installing fuse plugs, installing a liner system in various parts of the canal, replacing exiting bridges and waste weirs, repointing lock walls, replacing lock gates and rebuilding dry laid stone walls.

C. Project will be constructed under a single prime contract.

1.3 CONTRACTOR USE OF SITE

A. General: Contractor shall have limited use of the site for construction operations. Limit use of premises to areas within the Contract limits indicated. Do not disturb portions of Project site beyond areas in which the Work is indicated.

1. Limits: Confine constructions operations to the designated staging areas and within the designated construction sites.

B. Storage of Materials: Confine storage of materials to the designated staging areas and within the construction sites.

C. Preservation of Natural Features:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

2. Provide temporary barriers to protect existing trees and plants and root zones.

3. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Contracting Officer and remove agreed-on roots and branches that interfere with construction.

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4. Do not fasten ropes, cables, or guys to existing trees.

5. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

D. Driveways and Entrances: Keep driveways and entrances serving premises clear and available to

Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

1. Schedule deliveries to minimize use of driveways and entrances.

2. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

E. Construction Camp: Establishment of a camp within the park will not be permitted.

F. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

1.4 PUBLIC USE OF SITE

A. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public.

Towpath and road closures will be permitted, when required, upon specific approval of Contracting

Officer for a maximum of one (1) day.

1.5 WORK RESTRICTIONS

A. On-Site Work Hours: Work shall be generally performed during normal business working hours of

7 a.m. to 5 p.m., Monday through Friday, except when otherwise indicated. No weekend work, holiday or night work is permitted without 48 hour advance notice and written approval by the

Contracting Officer.

1. Weekend Hours: 7 am to 5 pm.

2. Early Morning Hours: No work shall commence before 7 am.

3. Hours for work which may cause excessive noise>: 7 am to 5 pm.

B. Existing Utilities

1. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

2. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

3. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

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C. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify Contracting Officer not less than two days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Contracting Officer’s written permission.

D. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor air intakes.

1.6 SPECIAL CONSTRUCTION REQUIREMENTS

A. Project Website: A project website administered by the NPS will be used for purposes of managing communication and documents during the construction stage.

1. See Section 01 31 00 “Project Management and Coordination” for requirements on using the Project Website.

2. During anticipated non-work days such as weekends and holidays, remove and store any traffic control devices within the staging area, to allow parking for park visitors.

B. The timeframe to perform the work at Level 20 is November 1 to April 1. All work requiring the canal to be dewatered must be completed by April 1 to allow the boat operations to commence.

C. Reassembly of retaining walls, with salvaged existing stone and compatible new stone, will reflect overall appearance of remaining intact walls, as determined by approved mock-up panel and affirmed by periodic progress inspections for duration of work. Where intact walls are knitted to rebuilt walls, the full field area must appear uniform and without apparent seams. Stonework transitions across a broad wall plane must be indistinguishable upon casual observation.

1.7 SOILS INVESTIGATION REPORT

A. A soils investigation report entitled has been prepared

B. A copy of the report is available to all plan holders with this package.

C. If conflicts occur between the report and drawings or specifications, the drawings and specifications govern.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01 11 00

01 27 00 - 1 CHOH - 150819

Revised 08/09/2017 DEFINITION OF CONTRACT LINE ITEMS

SECTION 01 27 00 – DEFINITION OF CONTRACT LINE ITEMS

PART 1- GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general, what is and what is not included in a contract line item, and the limits or cut-off points where one item ends and another begins.

B. If no contract line item exists for a portion of the work, include the costs in a related item.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 LIST OF CONTRACT LINE ITEMS

A. Contract Line Item No. 1 (Base Bid) – Repair MP 16.9 Breach

1. This item consists of furnishing all work and materials necessary to install the fuse plug as shown on the plans. Shall also include the installation and removal of temporary coffer dams and pedestrian bypass. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

B. Contract Line Item No. 2 (Base Bid) – Level 20 Bridge/Waste Weir

1. This item consists of removing the existing bridge, concrete abutment walls, waste weir, and adjacent stone walls, salvaging the existing stones, installing a new concrete foundation, abutment walls, steel beams, and wood laminated deck, installing a new cast in place waste weir including new hardware, rebuilding the ashlar stone retaining wall with concrete footing at the south east corner of the bridge, rebuilding the dry stack stone walls along the west bank of the channel that runs toward the Potomac River,

2. No measurement will be made on lump sum items.

3. Payment will be made at the contract lump sum price (LS).

C. Contract Line Item No. 3 (Base Bid) – Level 20 Canal Desilting

1. This item consists of furnishing all work necessary to remove accumulated silt from the canal prism, including stockpiling material for drying and hauling material off-site to a legal disposal site.

2. Measurement for payment will be per cubic yard.

3. Payment will made at the contract unit price (CY).

D. Contract Line Item No. 4 (Base Bid) – Level 20 Canal Liner

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1. This item consists of furnishing all material and work necessary for the construction of a clay liner system, including excavation, hauling waste material off-site, proof rolling, backfill, compaction, testing, and any other items necessary for a complete installation.

2. Measurement for payment will be the actual number of square feet of liner installed.

3. Payment will be made at the contract unit price (SF).

E. Contract Line Item No. 5 (Base Bid) – Level 20 Stream Diversion Piping

1. This item consists of furnishing all material and work necessary for the installation and removal of the temporary stream diversion through the work area, including relocating the piping as necessary to allow for the installation of the liner system and anchoring the piping.

2. No measurement will be made on lump sum items (LS).

3. Payment will made at the contract lump sum price.

F. Contract Line Item No. 6 (Base Bid) – Level 20 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site, including installation and removal of temporary coffer dams, construction access and pedestrian bypass. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering of the canal prism. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

G. Contract Line Item No. 7 (Base Bid)- Level 20 New Stones for Walls

1. This item consists of supplying new stones that are needed for the reconstruction of the dry stack stone retaining wall indicated on the plans.

2. Measurement for payment will be the actual cubic yards of stone installed in the wall.

3. Payment will be made at the contract unit price (CY). There will be no payment made for stone material delivered to the site but not used in the wall construction.

H. Contract Line Item No. 8 (Base Bid) – Level 20 Lean Concrete

1. This item consists of all work necessary to supply and install lean concrete between existing rock and the bottom of the bridge abutment footing indicated on the plans.

2. Measurement for payment will be the actual number of cubic yards of concrete installed.

3. Payment will be made at the contract unit price (CY).

I. Contract Line Item No. 9 (Base Bid) – Lock 19 Bridge #1 Replacement

1. This item consists of all work necessary to remove and replace the existing bridge superstructure and wood rails over the lock.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at the contract lump sum price.

J. Contract Line Item No. 10 (Base Bid) – Lock 19 Bridge #2 Replacement

1. This item consists of all work necessary to replace the existing bridge substructure and superstructure and wood rails over the bypass flume and install dry stack stone retaining walls at each corner of the bridge

2. No measurement will be made on Lump Sum items.

3. Payment will made at the contract Lump Sum price.

01 27 00 - 3 CHOH - 150819

K. Contract Line Item No. 11 (Base Bid) – Lock 19 Gates

1. This item consists of all work necessary to remove and install new lock gates at the east end of the lock structure.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at contract Lump Sum price.

L. Contract Line Item No. 12 (Base Bid) – Lock 19 Bridge New Stones

1. This item consists of supplying new stones that are needed for the reconstruction of the dry stack stone retaining wall indicated on the plans.

2. Measurement for payment will be the actual cubic yards of stone delivered to the project site.

3. Payment will be made at the contract unit price (CY).

M. Contract Line Item No. 13 (Base Bid) – Lock 19 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site.. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering as necessary. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at contract Lump Sum price.

N. Contract Line Item No. 14 (Base Bid) – Lock 19 Repointing

1. This item consists of repointing deteriorated mortar joints on the face of the lock walls.

2. Measurement for payment will be the actual number of lineal feet of joint.

3. Payment will be made at the contract unit price (LF).

O. Contract Line Item No. 15 (Base Bid) – Lock 18 New Gates

1. This item consists of removing and replacing the lock gates and mitre sill at the east and west ends of the lock.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at the contract lump sum price.

P. Contract Line Item No. 16 (Base Bid) - Lock 18 Repointing

1. This item consists of repointing deteriorated mortar joints on the face of the lock walls.

2. Measurement for payment will be the actual number of lineal feet of joint.

3. Payment will be made at the contract unit price (LF).

Q. Contract Line Item No. 17 (Base Bid) – Lock 18 Erosion Repair

1. This item consists of all work necessary to dismantle the existing stone armoring along the towpath and reinstalling stone to stabilize erosion adjacent to the towpath.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

R. Contract Line Item No. 18 (Base Bid) – Lock 18 New Stones for Erosion Repair

1. This item consists of supplying new stones that are needed for the repair of erosion adjacent to the towpath.

2. Measurement for payment will be the actual cubic yards of stone installed in the wall.

01 27 00 - 4 CHOH - 150819

3. Payment will be made at the contract unit price (CY). There will be no payment made for stone material delivered to the site but not used in the wall construction.

S. Contract Line Item No. 19 (Base Bid) – Lock 18 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering as necessary. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at contract Lump Sum price.

T. Contract Line Item No. 20 (Base Bid) – Lock 17 New Gates

1. This item consists of removing and replacing the lock gates and mitre sill at the east and west ends of the lock.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at the contract lump sum price.

U. Contract Line Item No. 21 (Base Bid) – Lock 17 Repointing

1. This item consists of repointing deteriorated mortar joints on the face of the lock walls.

2. Measurement for payment will be the actual number of lineal feet of joint.

3. Payment will be made at the contract unit price (LF).

V. Contract Line Item No. 22 (Base Bid) – Lock 17 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering as necessary. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at contract Lump Sum price.

W. Contract Line Item No. 23 (Base Bid) – Culvert 15 Liner System

1. This item consists of furnishing all material and work necessary for the construction of a liner system, including excavation, hauling waste material off-site, proof rolling, installation of stone bedding, geotextile, liner, backfill, compaction, testing, anchor trench and any other items necessary for a complete installation.

2. Measurement for payment will be the actual number of square feet of liner installed.

3. Payment will be made at the contract unit price (SF).

X. Contract Line Item No. 24 (Base Bid) – Culvert 15 Repointing

1. This item consists of repointing deteriorated mortar joints at the top of the stone arch barrel in the culvert at the location of the previous water leak. It also includes low pressure grouting of voids deep than six inches.

2. Measurement for payment will be the actual number of lineal feet of joint.

3. Payment will be made at the contract unit price (LF).

Y. Contract Line Item No. 25 (Base Bid) – Culvert 15 Temporary Controls

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1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site. Shall also include the removal of exiting coffer dams and piping. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering as necessary. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at contract Lump Sum price.

Z. Contract Line Item No. 26 (Base Bid) – Rock Run Culvert

1. This item consists of all work necessary to selectively remove the existing dry stack stone retaining wall, salvage existing stones, and rebuild the wall with a combination of new and existing stone to toothe into the existing wall.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at the contract lump sum price.

AA. Contract Line Item No. 27 (Base Bid) – Rock Run New Stones for Wall

1. This item consists of supplying new stones that are needed for the reconstruction of the dry stack stone retaining wall indicated on the plans.

2. Measurement for payment will be the actual cubic yards of stone installed in the wall.

3. Payment will be made at the contract unit price (CY). There will be no payment made for stone material delivered to the site but not used in the wall construction.

BB. Contract Line Item No. 28 (Base Bid) – Rock Run Concrete Patch Repair

1. This item consists of all work necessary to remove loose stone, install dowels, and install a formed concrete patch where the east side of the existing culvert wall has collapsed.

2. Measurement for payment will be the actual cubic yards of concrete installed.

3. Payment will be made at the contract unit price (CY).

CC. Contract Line Item No. 29 (Base Bid) – Rock Run Stone Filler Repair

1. This item consists of all work necessary to install a stone filler or Dutchman repair in the side of the existing culvert stone walls.

2. Measurement for payment will be the actual square footage of Stone Filler Repair

Installed.

3. Payment will be made at the contract unit price (SF).

DD. Contract Line Item No. 30 (Base Bid) – Rock Run Liner System

1. This item consists of furnishing all material and work necessary for the construction of a clay liner system, including excavation, proof rolling, backfill, compaction, testing, and any other items necessary for a complete installation.

2. Measurement for payment will be the actual number of square feet of liner installed.

3. Payment will be made at the contract unit price (SF).

EE. Contract Line Item No. 31 (Base Bid) – Rock Run Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site, including installation and removal of temporary coffer dams and pedestrian bypass. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering of the canal prism. Shall also include supplying adequate signage, 01 27 00 - 6 CHOH - 150819 and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

FF. Contract Line Item No. 32 (Base Bid) – Lock 7 Waste Weir

1. This item consists furnishing all material and work necessary to demolish the existing waste weir and install a new precast box culvert and slide gate. Shall include all excavation, concrete forming, reinforcement, backfill and any other items necessary for a complete installation.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

GG. Contract Line Item No. 33 (Base Bid) – Lock 7 Fuse Plug

1. This item consists of furnishing all material and work necessary to install a new fuse plug near Lock 7. Shall include all excavation, backfill, towpath material and any other items necessary for a complete installation.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

HH. Contract Line Item No. 34 (Base Bid) – Lock 7 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site, including installation and removal of temporary coffer dams and pedestrian bypass. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering of the canal prism. Shall also include supplying adequate signage, and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

II. Contract Line Item No. 35 (Option A) – Blockhouse Point Towpath Raising

1. This item consists of furnishing all material, equipment and labor to raise the towpath to the grades shown on the plans.

2. Measurement for payment will be the actual number of lineal feet of towpath raised.

3. Payment will be made at the contract unit price (LF)

JJ. Contract Line Item No. 36 (Option A) – Block house Point Reset Cap Stones

1. This item consists of all work necessary to retrieve, salvage, temporarily store, and reinstall existing mortared cap stones on the wall between the towpath and the Potomac River. Item also includes the purchase and installation of new capstones as required.

2. Measurement for payment will be per lineal foot.

3. Payment will be made at the contract unit price (LF).

KK. Contract Line Item No. 37 (Option A) – Block house Point Reconstruct Dry Laid Stone Wall

1. This item consists of all work necessary to dismantle the stone armoring, salvage existing stones and reinstall.

2. No measurement will be made on lump sum items (LS)

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3. Payment will be made at the contract lump sum price.

LL. Contract Line Item No. 38 (Option A) – Block house Point Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site, including staging areas, installation and removal of temporary erosion and sedimentation controls, supply of shuttle service to route visitors to Pennyfield Lock access area, signage to provide daily closure of towpath within the work area and all other items necessary to provide a safe work area.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

MM. Contract Line Item No. 39 (Option A) – Block House Point New Stones for Wall

1. This item consists of supplying new stones that are needed for the reconstruction of the stone armoring as indicated on the plans.

2. Measurement for payment will be the actual cubic yards of stone installed in the wall.

3. Payment will be made at the contract unit price (CY).

NN. Contract Line Item No. 40 (Option B) – Lock 16 New Gates

1. This item consists of removing and replacing the lock gates and mitre sill at the east and west ends of the lock.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at the contract lump sum price.

OO. Contract Line Item No. 41 (Option B) – Lock 16 Repointing

1. This item consists of repointing deteriorated mortar joints on the face of the lock walls.

2. Measurement for payment will be the actual number of lineal feet of joint.

3. Payment will be made at the contract unit price (LF).

PP. Contract Line Item No. 42 (Option B) – Lock 16 Cribbing Wall

1. This item consists of furnishing all work to remove an existing timber cribbing wall filled with stone and installing a new timber cribbing wall filled with stone.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

QQ. Contract Line Item No. 43 (Option B) – Lock 16 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site. Shall also include the construction and maintenance of ford to cross canal at location shown on the plans. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering as necessary. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

3. Payment will be made at contract Lump Sum price.

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RR. Contract Line Item No. 44 (Option C) – Lock 15 New Gates

1. This item consists of removing and replacing the lock gates and mitre sill at the east and west ends of the lock.

2. No measurement will be made on Lump Sum items.

3. Payment will be made at the contract lump sum price.

SS. Contract Line Item No. 45 (Option C)– Lock 15 Repointing

1. This item consists of repointing deteriorated mortar joints on the face of the lock walls.

2. Measurement for payment will be the actual number of lineal feet of joint.

3. Payment will be made at the contract unit price (LF).

TT. Contract Line Item No. 46 (Option C)– Lock 15 Cribbing Wall

1. This item consists of furnishing all work to remove an existing timber cribbing wall filled with stone and installing a new timber cribbing wall filled with stone.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

UU. Contract Line Item No. 47 (Option C)– Lock 15 Temporary Controls

1. This item consists of furnishing, installing and removing all temporary controls necessary to provide safe access to the work site and to secure the work site. Shall also include the installation and removal of temporary erosion and sedimentation controls. Shall also include the dewatering as necessary. Shall also include supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at contract Lump Sum price.

VV. Contract Line Item No. 48 (Option D)– Lock 14 Reconstruct Dry Laid Stone Wall

1. This item consists of all work necessary to dismantle the existing wall, salvage existing stones and reconstruct dry laid stone wall. Shall also include installing and removing all temporary controls necessary to provide safe access and to secure the work site, including supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

2. No measurement will be made on lump sum items (LS)

3. Payment will be made at the contract lump sum price.

WW. Contract Line Item No. 49 (Option D)– Lock 14 New Stones for Walls

1. This item consists of supplying new stones that are needed for the reconstruction of the dry stack stone retaining wall indicated on the plans.

2. Measurement for payment will be the actual cubic yards of stone installed in the wall.

3. Payment will be made at the contract unit price (CY). There will be no payment made for stone material delivered to the site but not used in the wall construction.

XX. Contract Line Item No. 50 (Option E)– Lock 13 Reconstruct Dry Laid Stone Wall

1. This item consists of all work necessary to dismantle the existing wall, salvage existing stones and reconstruct dry laid stone wall. Shall also include installing and removing all temporary controls necessary to provide safe access and to secure the work site, including supplying adequate signage and personnel to direct construction and pedestrian traffic along the towpath during construction operations.

3. Payment will be made at the contract lump sum price.

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YY. Contract Line Item No. 51 (Option E)– Lock 13 New Stones for Wall

1. This item consists of supplying new stones that are needed for the reconstruction of the dry stack stone retaining wall indicated on the plans.

2. Measurement for payment will be the actual cubic yards of stone installed in the wall.

3. Payment will be made at the contract unit price (CY). There will be no payment made for stone material delivered to the site but not used in the wall construction.

END OF SECTION 01 27 00

CHOH - 150819 01 31 00 - 1

050512 PROJECT MANAGEMENT AND COORDINATION

SECTION 01 31 00 - PROJECT MANAGEMENT AND COORDINATION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative provisions for coordinating construction operations on Project including, but not limited to, the following:

1. Construction Coordination.

2. Coordination Drawings.

3. Requests for Information (RFIs).

4. NPS/DSC SharePoint Project Website.

5. Project meetings.

6. Environmental Coordination.

B. Related Requirements:

1. Section 01 32 16 “Construction Schedule” for preparing and submitting Contractor’s construction schedule.

2. Section 01 73 40 “Execution” for procedures for coordinating general installation and field-engineering services, including establishment of benchmarks and control points.

3. Section 01 77 00 “Closeout Procedures” for coordinating closeout of the Contract.

4. Section 01 91 13 “General Commissioning Requirements” for coordinating the work with

Owner’s Commissioning Authority.

1.2 CONSTRUCTION COORDINATION

A. Coordination: Coordinate construction operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work. Coordinate construction operations, included in different Sections, which depend on each other for proper installation, connection, and operation.

1. Schedule construction operations in sequence required to obtain the best results where installation of one part of the Work depends on installation of other components, before or after its own installation.

2. Coordinate installation of different components with other Contractors to ensure maximum accessibility for required maintenance, service, and repair.

3. Make adequate provisions to accommodate items scheduled for later installation.

4. Where availability of space is limited, coordinate installation of different components to ensure maximum performance and accessibility for required maintenance, service, and repair of all components, including mechanical and electrical.

B. Prepare memoranda for distribution to each party involved, outlining special procedures required for coordination. Include such items as required notices, reports, and list of attendees at meetings.

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C. Administrative Procedures: Coordinate scheduling and timing of required administrative procedures with other construction activities and activities of other contractors to avoid conflicts and to ensure orderly progress of the Work. Such administrative activities include, but are not limited to, the following:

1. Preparation of Contractor's Construction Schedule.

2. Preparation of the Schedule of Values.

3. Installation and removal of temporary facilities and controls.

4. Delivery and processing of submittals.

5. Progress meetings.

6. Pre-installation conferences.

7. Project closeout activities.

8. Commissioning activities.

1.3 SUBMITTALS

A.…