Attachment_Number_0001_140P4321Q0044_CACO_Statement_of_Work_and__Specifications.pdf

STATEMENT OF WORK

Emergency Repairs for Visitor Safety

Nauset Bike Trail Salt Pond Visitor Center Parking Lot Sidewalks

CAPE COD NATIONAL SEASHORE

July 20, 2021

Scope The primary work of this project includes, but is not limited to, removal and replacement of asphalt and concrete pavements at various locations as described in this scope of work. The objective of this project will be to correct safety hazards and restore full functionality to the paved surfaces.

Minimize disturbance to the site to the greatest extent possible unless directed otherwise.

Provide all labor, materials, tools, and equipment required to complete this work.

General Tasks to be Performed:

All work will be performed in compliance with the Commonwealth of Massachusetts, Department of Public Works, Standard Specification for Highways and Bridges, latest edition (as amended)

All work performed under this contract shall be done in accordance with applicable local, State, and Federal codes, bylaws and ordinances in effect at the time of this work.

Do not disturb portions of site beyond areas in which the Work is indicated.

Comply with all legal load restrictions in the hauling of materials.

Perform tasks as shown on the Pavement Replacements Plan – Salt Pond Visitor Center, dated June 4, 2021 and the attached details.

Quantities are provided on the Pavement Replacements Plan referenced above.

Install and maintain all environmental protection/erosion control measures.

Specific Tasks to be Performed – Nauset Bicycle Trail:

Remove and replace 4200 square feet of bituminous bicycle trail pavement, 400 linear feet of root barrier, four paved asphalt swales (8 square feet each), 50 linear feet of thermoplastic center line pavement marking.

Sawcut and remove asphalt, gravel base and shoulder material to 12 inch depth, including pavement swales.

Sawcut and remove tree roots two feet back from edge of pavement to be reinstalled.

Add root barrier per detail.

Add new aggregate base course and compact.

Place new asphalt, including cape cod berm, to meet line and grade of adjacent pavements per details and as shown on the plans.

Install thermoplastic center line pavement marking to match existing.

Reuse existing topsoil in disturbed areas of root removal.

Install new pavement swales to match existing at locations where removed, adjust riprap to match line and grade of swales.

Regrade along edges of pavement and compact.

Repair/re‐grade/compact/sow seed mix on sides of trail.

Specific Tasks to be Performed – Salt Pond Visitor Center Parking Lot Sidewalks:

Remove and replace 1430 square feet of damaged concrete sidewalk pavement and reset 160 linear feet of concrete curbing at replaced sidewalk, assume 36 feet of new curbing.

Sawcut as necessary and remove concrete panels, asphalt and gravel base to 12 inch depth.

Sawcut and remove 12” wide parking lot pavement at curbing to be reset, Sawcut and remove tree roots twelve inches back from edge of pavement to be reinstalled.

Remove and reset or replace curbing.

Add new aggregate base course and compact.

Reuse existing soil in disturbed areas of root removal.

Place new concrete and asphalt pavements to meet line and grade of adjacent pavements per details and as shown on the plans, scoring and control joints to match existing.

Repair/re‐grade/compact/sow seed mix on sides of sidewalk.

Measurements Estimated dimensions and quantities are provided as a guide only. The contractor is responsible for verifying all measurements and dimensions. Take all measurements for quantities of materials and note existing conditions for the installation of new work. All ancillary work, cutting and /or removal of existing work necessary for the installation of new work shall be done as required as part of this contract.

Site Examination It is strongly suggested that offerors examine the work site to confirm existing conditions and required quantities prior to submitting a proposal on this project.

It is the responsibility of the contractor to examine the work site to confirm existing conditions and required quantities prior to submitting a proposal on this project. The contractor may arrange a site visit by contacting the Contracting Officer (CO) between 8:00 a.m. and 4:00 p.m. on non‐holiday weekdays.

Utilities and Services Provide and maintain sanitary facilities for workers.

The contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government. Notify Contracting Officer and utility companies of proposed locations and times for excavation. If damage occurs to an unknown utility, repair utility and immediately notify Contracting Officer.

Water Service: Water from existing water system is normally available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. If water is not available, the contractor shall supply temporary potable water adequate to the needs of the contract at no additional cost to the contract for project use.

Electric Power Service: Electric power from existing system is normally available for use during construction without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs.

Arrange with utility company and government for time when service can be interrupted, if necessary, to make connections for temporary services. If electric power is not available, the contractor shall provide temporary power at no additional cost to the contract for project use.

Submittals and Deliverables Submit safety plan that complies with OSHA standards within 3 business days after award.

Propose location of laydown and stockpile area for NPS approval. Laydown and stockpile shall be confined to any existing paved areas only.

Provide detailed proposed project design, layout, and schedule prior to commencing any work on site.

Product Data: provide manufacturers' literature on characteristics of materials, maintenance, parts list and warranties. Submit only pages which are pertinent. Mark each copy to identify pertinent products referenced to the specifications. Provide manufacturers’ literature, drawings, and technical data sufficient to fully define the material and to demonstrate full compliance with the contract specifications.

Manufacturer's Installation Instructions: Include special precautions from manufacturer.

Drawings: submit drawings as appropriate.

Materials: If requested, submit representative samples of all materials to be used in sizes adequate to define the purpose of the material and determine its suitability.

Manufacturer's certificate: certify that products meet or exceed specified requirements.

Perform the work of this contract.

Safety and Environmental Protection Requirement Maintain project area in a neat, orderly and safe condition at all times. All work areas shall be made secure and safe after hours, on weekends and holidays.

All park visitors and contractors are encouraged to conduct themselves in a manner befitting the dignified nature of the National Park. Regulations in 36 CFR parts 2 and 5 and prohibit littering, disturbing or damaging natural and cultural resources, engaging in recreational activities, engaging in disorderly activities and engaging in commercial activities.

Conduct all operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Park Superintendent.

All debris and removed material are the property of the contractor and shall be recycled or legally disposed of in a manner that is consistent with local and state regulations. All waste, trash and debris generated as part of this project must be secured from wind and rodent action.

Take all necessary precautions to prevent fire during construction. Provide and maintain suitable fire protection equipment. Protection equipment required: Furnish a minimum of one UL Class 2A, 2‐1/2 gallon water type stored pressure extinguisher, and one UL Class 10, Type I, 15 pound A:B:C carbon dioxide extinguisher at each work site.

No radios or smoking (including vaping) will be allowed on the job site.

Equipment when not in use shall be shut off to minimize noise and air‐pollution.

Hardhat use shall conform to the strictest safety rules and regulations of entities having jurisdiction.

The contractor’s representative shall have an updated First Aid card.

These are high‐use areas. The contractor is responsible for securing the site and the work of the contract. During the execution of this contract, the contractor shall conform to the rules and regulations as set forth by OSHA Safety and Health Standards. Provide barriers, temporary fencing, signage, etc.

wherever work could cause injury to workers or visitors and ensure that materials and equipment are secured from public access during off‐hours.

Provide and maintain environmental protection and erosion control during the life of the Contract to control pollution and/or siltation, or to correct conditions that develop during construction.

Unless otherwise indicated by the CO, the limit of work shall be 5’ outside the edge of the work to be performed.

Equipment shall not be allowed to operate outside the limits of work or to disturb existing vegetation.

Construction equipment shall be kept in good repair, without leaks of hydraulic or lubricating fluids.

The contractor must visually inspect all equipment prior to commencing work every day and at the mid‐ point in the workday for leaks. If such leaks or drips do occur, they shall be cleaned up immediately.

Confine equipment maintenance to one location. Control runoff in this area to prevent contamination of soils and water. No equipment repair will be allowed on the site.

It is the contractor’s responsibility to ensure that any disturbance or damage done during the course of this project to the existing utilities, landscape, building or government materials, shall be repaired or restored to its original condition by the contractor at the contractor’s expense prior to completion of the job.

No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park unless approved by the Government.

Work and Weather Limitations Regular work hours are between 8AM to 4PM Monday through Friday. Unless otherwise requested and approved in advance, no work shall take place after hours, on holidays or weekends. Requests must be made 48 hours in advance.

The contractor shall be responsible for storage of all materials and equipment; the Park must approve the contractor’s use of any space on the site in advance.

Proceed with project only when existing and forecasted weather conditions will permit work to be performed according to manufacturers' recommendations and warranty requirements. Ensure temperatures are over the minimum installation temperatures recommended by material manufacturers.

Security and Safety The contractor shall have unescorted access to the construction site. The contractor shall coordinate with the Contracting Officer’s Representative (COR) for access to all locations.

The COR or the COR’s alternate will not be required to be at the site location during all working hours.

Regulations

Occupational Safety and Health Administration (OSHA)

National Institute for Occupational Safety and Health (NIOSH)

Massachusetts General Laws and Department of Environmental Protection regulations and statutes

Town Board of Health Regulations

Materials No new fill from outside of the Park will be allowed, except for that purchased from Park‐approved locations. Conserve topsoil from removal actions for reuse along pavement edges.

All materials needed for the completion of the work of this contract shall be in compliance with the Commonwealth of Massachusetts, Department of Public Works, Standard Specification for Highways and Bridges, latest edition (as amended).

Concrete sidewalk pavement materials shall comply with Section 700: Incidental Work; Subsection 701.30, specifically:

Materials shall meet the requirements specified in the following Subsections of Division III, Materials:

Gravel Borrow, Type b...............................................................................................................M1.03.0 Cement Concrete (4,000 psi, ¾‐inch, 610).................................................................................M4.02.00 Preformed Expansion Joint Filler............................................................................................... M9.14.0

6” x 6” – W1.4 x W1.4 reinforcing mesh for concrete sidewalk shall comply with Section M8: Metals and Related Materials.

Concrete curb materials shall comply with Section 500: Curb and Edging, Subsection M4.02.00.

Asphalt pavement materials shall comply with Section 700: Incidental Work; Subsection 702.30, specifically:

Gravel Borrow, Type b...............................................................................................................M1.03.0 Asphalt Release Agents .............................................................................................................M3.01.6 HMA for Driveways, Sidewalks, Berm, and Curb........................................................................M3.11.6 Hot Mix Asphalt Production Facility...........................................................................................M3.12.0

Tack coat emulsified asphalt grade shall be as shown in AASHTO M 140 or M 208.

Thermoplastic bike trail pavement marking shall comply with Section M7: Paints, Protective Coatings and Pavement Markings. Color shall be yellow.

Erosion control bales, wattles, logs, and rolls

1. Straw bales. Furnish bales tied with either commercial quality baling wire or string.

Conform to the following:

a) Straw – see requirements for straw herein

b) Approximate length 3.5 feet

c) Shape rectangular

d) Approximate mass 70 pounds

2. Wood excelsior bales. Furnish bales of curled wood excelsior. Tie the bales with either a commercial bailing wire, plastic, or string. Conform to the following:

a) Approximate dimensions 16 by 18 by 36 inches

b) Approximate mass 70 pounds

3. Excelsior fiber wattles, logs or rolls. Furnish wattles, logs, or rolls of curled excelsior fiber rolled into a cylindrical shape and encased in a seamless photodegradable tubular netting. Conform to the following:

a) Diameter 12 inches min.

b) Mass 3 pounds per foot min.

4. Straw wattles, logs or rolls. Furnish straw wattles that are manufactured from weed free straw and wrapped in a tubular photodegradable plastic netting made from 85% high density polyethylene, 14% ethyl vinyl acetate and 1% color for UV inhibition. Conform to the following:

a) Diameter 9 inches min.

b) Netting strand thickness 0.030 inches

c) Netting knot thickness 0.055 inches

d) Mass of netting 0.315 to 0.385 ounces per foot

Silt fence – Conform to AASHTO M 288.

Straw Mulch shall be certified weed free straw from oats, wheat, rye, or other grain crops that is free from mold or other objectionable material. Furnish straw in an air‐dry condition suitable for placing with mulch blower equipment.

Seed mix shall be native grass species. Red fescue is acceptable. Some other native grasses are Little Blue Stem, Wild Rye, Poverty grass, and hairgrass. Contractor shall submit a sample for approval by Park staff prior to any seeding. Conform to the Federal Seed Act, the Federal Noxious Weed Act, and applicable State and local seed and noxious weed laws. Do not use wet, moldy, or otherwise contaminated or damaged seed. Furnish each seed type in separate sealed container. Clearly label each container with the following:

1. Name and type of seed;

2. Lot number;

3. Net mass;

4. Percent of purity, germination, and hard seed;

5. Percent of maximum weed seed content;

6. Seed Origin;

7. Noxious weeds present;

8. Other crop seed;

9. Inert matter;

10. Name and address of seed distributor; and

11. Mixture percent of each component.

Inoculate legume seed with approved cultures according to the manufacturer's instructions

Root barrier shall be made of 24” X 24” black injection molded polypropylene panels with added ultraviolet inhibitors. Each panel shall have four molded integral vertical root directing ribs protruding 1/2" spaced 6" apart, and equally spaced 3/8” horizontal anti‐lift ribs approximately 4” apart. Root barrier shall have an integrated zipper joining system for assembly by sliding one panel into another. As an advisory to the contract, UB 24‐2 as manufactured by DeepRoot® Green Infrastructure, LLC, 530 Washington Street, San Francisco, CA, www.deeproot.com (800.458.7668) meets the above‐listed criteria, or equivalent.

Demolition Before beginning any demolition or deconstruction work, inspect and examine the site to determine the extent of the work. Take necessary precautions to avoid damage to existing items, including trees, lawns, curbs and pavements, to remain in place, to be reused, or to remain property of Government.

Provide waste‐collection containers in sizes adequate to handle waste from construction operations.

Comply with requirements of agency(ies) with jurisdiction.

Unless otherwise indicated, disposal of removed materials shall be the contractor's responsibility. All debris and removed material are the property of the contractor and shall be recycled or legally disposed of in a manner that is consistent with local and state regulations.

Install erosion control measures for environmental protection and erosion/siltation control prior to commencement of work.

Installation Store materials so they remain clean and dry.

Remove pavements and base materials to full depth shown on details.

Remove curbing to be reset in a manner that doesn’t cause damage and allows for reuse. Confirm quantity of curbing that will need to be replaced.

After consultation with COR, carefully perform removal of roots at sections of damaged concrete sidewalk to be replaced.

At areas of root barrier along bike trail, sawcut and remove tree roots to a distance of 2 feet from edge of pavement. Conserve topsoil for reuse along edges of new pavements.

Tree roots shall be cut with equipment that minimizes cracking the wood and tearing the bark. Where tree roots must be cut, make only sharp, clean cuts to promote root callusing and regeneration. Root pruning tools shall include but are not limited to: handsaws; lopping shears; chisels; hand shears; chain saws; reciprocating saws; and, circular saws. Cuts shall be clean and perpendicular to the natural growth direction. Backfill within an hour of cutting roots and water the tree within 24 hours. If this is not achievable, cover roots with backfill on the same day. Cover exposed roots with wet burlap to prevent them from drying out from wind and sun.

Install root barrier per manufacturer’s directions as shown on detail, 12” from edge of paved surface.

Install with top 1” exposed to keep roots from growing over barrier.

Pavement installation shall be in compliance with the Commonwealth of Massachusetts, Department of Public Works, Standard Specification for Highways and Bridges, latest edition (as amended) and as modified by this scope of work. Meet line and grade of existing adjacent pavements to remain.

Concrete sidewalk pavement installation in parking lot shall comply with Section 700: Incidental Work;

Subsection 701.30, specifically:

701.40: Preparation of Underlying Surface 701.41: Cement Concrete Sidewalks, Wheelchair Ramps, and Driveways

Concrete curb installation in parking lot shall comply with Section 500: Curb and Edging; Subsections 501.62: Setting Curb and Edging, 501.63: Concrete Curb, Corners, and Edging, 501.65: Filling About Trench, 501.67: Pointing.

Asphalt pavement installation at bike trail shall comply with Section 700: Incidental Work; Subsection 702.40, specifically:

702.41: Preparation of Underlying Surface 702.42: Construction of Hot Mix Asphalt Sidewalks and Driveways

Apply tack coat to all existing asphalt surfaces and edges prior to installing new asphalt paving.

For thermoplastic center line pavement marking, clean the new bituminous bike trail pavement of all residue and curing compounds prior to application. Apply epoxy resin primer/sealer according to the thermoplastic manufacturer's recommendations. Allow the primer/sealer to dry. Apply pavement marking in new bituminous bike trail as a solid continuous center line to clean, dry surface, starting 12” from edge of detectable warning field to remain and extend 50 feet eastward. Apply thermoplastic when the pavement and air temperatures are above 50 ºF. Spray or extrude the thermoplastic at 430±5 ºF. Spray or extrude 90 mil minimum dry film thickness or at a rate of 17.8 square feet per gallon. Make line 4 inches wide. Immediately apply glass beads on the thermoplastic. Protect marked area from traffic until the marking is dried to no‐tracking condition. Remove all tracking marks, spilled marking material, markings in unauthorized areas, and defective markings.

Regrade along edges of pavement and compact. Spread conserved topsoil along edges of newly paved surfaces to a depth that, after settlement, provides the required depth and meets grade at pavement and undisturbed areas. Break clods and lumps with harrows, disks, or other appropriate equipment to provide a uniform textured soil. Remove and dispose of clods and stones larger than 1 inches, stumps, roots, and other litter. Construct longitudinal depressions at least 2 inches deep perpendicular to the natural flow of water without overly compacting the topsoil surface.

Seed and mulch all disturbed areas and topsoiled areas in accordance with best practices of the industry. Provide water in sufficient quantity and frequency to ensure full germination.

Workmanship The contractor is responsible for appropriate quality control and workmanship shall be the best of their respective kinds and in full accordance with applicable codes.

Make sure all work is flush, square, level and has proper reveals per manufacturer’s specs. If not sure, ask COR before starting.

When a manufacturer or a standard uses subjective words, e.g., “should, could, may”, etc., these words shall mean “shall, will, required”, etc. When the word “recommended” is used, it shall mean “required”. If there is a conflict between general and specific provisions, the specific shall govern.

Upon Notice to Proceed, the contractor shall make steady and uninterrupted progress toward the completion of the work of this contract.

Storage of Equipment and Materials The contractor shall be responsible for storage of all materials and equipment; the Park COR and / or Project Inspector must approve the contractor’s use of any space on the site in advance.

Upon completion of the work of this contract, the storage area shall be left broom clean by the contractor.

Clean‐Up After completion of the work, construction debris, excess material and equipment shall be removed from the site and legally disposed. Use a magnet of sufficient strength to ensure no metal is left behind. Upon completion of the work of this contract, work areas shall be left broom clean by the contractor.

Period of Performance Preconstruction meeting – Will be held within one week of contract award.

Notice to Proceed – Will be provided to the contractor after preconstruction meeting and upon receipt of all required documents.

Material Submittals – Due within 48 hours (or 2 business days) of Notice to Proceed Proposed completed work with all documentation submittals – 60 days after date on the Notice to Proceed.

Drawings and Details Appended below

M at ch L in e

Reset all curb where new sidewalk abuts parking lot

M at ch L in e

CONCRETE CURB

2’ -0

” M

IN