ATT2_Specifications.docx

NATIONAL FORESTS IN NORTH CAROLINA

PISGAH NATIONAL FOREST

PISGAH RANGER DISTRICT

CRADLE VISITOR CENTER

ENTRANCE GATE CONSTRUCTION

Project

July 2014

National Forests in North Carolina

SPECIFICATION INDEX

DIVISION 1 - GENERAL REQUIREMENTS

DIVISION 2 - SITE WORK

DIVISION 3 - CONCRETE

DIVISION 4 - MASONRY

04410 Stone Masonry

DIVISION 5 - METALS

05520 Guardrails and Handrails

SECTION 01110

SUMMARY OF WORK

PART 1 GENERAL

1.01 PROJECT LOCATION

A. Location of work is approximately 10 miles north of Brevard NC on US 276.

1.02 DESCRIPTION

A. This work shall consist of the complete reconstruction of the access gate from its current 50% condition. Due to limited funds the National Forests in NC was unable to complete the entrance gate this past year. This contract includes completing the gate project 100% per drawings and specifications. The old gate foundation and columns shall be removed and disposed of properly under this contract.

B. The Contractor shall furnish all labor, materials, equipment, tools, supplies, supervision and transportation and perform all of the work required AS SHOWN ON THE DRAWINGS, SPECIFICATIONS and BID SCHEDULE.

1.03 STORAGE OF MATERIALS

A. The Contractor may store materials and equipment at the work site (parking lot) at his own risk. All materials must be kept in an area designated by the COR and be neat and orderly.

B. The Contractor shall install safety fences at the beginning of the project to discourage the forest visitors from entering the construction area.

1.04 EXISTING FACILITIES

A. There are sanitary facilities available at the project site.

B. There is no secondary electrical service at the project site. The Contractor must furnish his own electrical generators.

C. There is no potable water available at the project site. The Contractor must furnish his own potable water for construction purposes.

1.05 SAFETY

A. The construction fencing and MUTCD traffic devises shall be used to limit access to the construction areas by the general public while setting the overhead poles.

1.06 CONSTRUCTION SCHEDULING & CONSTRAINTS

A. A proposed schedule of work for the project construction shall be submitted to the COR for approval 10 days prior to starting construction.

B. The trail will be closed to the public during the life of the contract. The Contractor must maintain public access to the handicapped accessible viewing deck at all times.

SECTION 01330

SUBMITTALS

PART 1 GENERAL

1.01 REQUIREMENTS INCLUDED

A. Procedures

B. Manufacturer’s Instructions

C. Manufacturer’s Certificates

1.02 PROCEDURES

A. Submittals shall be furnished before fabrication or installation occurs. All submittals shall be evaluated and either approved or rejected by the COR within 14 days after their receipt. A minimum of three (3) copies of submittals shall be supplied to the COR.

B. If the Contractor intends to provide or install an item that is an "or equal" or differs from that which is specified or shown on the drawings, he/she shall submit all product data, revised drawings or new drawings to the COR. for approval.

C. The contractor shall submit four sets of the manufacturer's description of all "or equals" proposed in lieu of name brands specified. This description shall include:

1. Product name and model number

2. Manufacturer

3. Product description

4. Technical data

1.03 MANUFACTURER’S INSTRUCTIONS

A. The Contractor shall provide three (3) copies of all of the manufacturers installation and maintenance instructions (written and/or drawings) to the COR.

1.04 MANUFACTURER’S CERTIFICATES

A. The Contractor shall provide all guarantees, certificates of performance, material of workmanship or warranties provided by the manufacturer or required by the specifications to the COR.

Submittals include:

1. Treated Timber Pole treatment

2. Metal Paint

SECTION 01450

QUALITY CONTROL

PART 1 GENERAL

1.01 WORK INCLUDED

A. The work shall consist of providing quality control in conformance with the Inspection of Construction provisions of this contract to ensure compliance with the drawings, specifications and provisions of the contract. The Contractor shall provide all personnel, equipment, tests, and reports to meet the requirements of this specification.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.01 QUALITY CONTROL SYSTEM

A. The Contractor shall provide and maintain a quality control system that will ensure that all services, supplies, and construction required under this contract conform to the contract requirements. The Contractor shall perform, or cause to be performed, the sampling, inspection, and testing required to substantiate that all supplies, services, and construction conform to the contract requirements.

3.02 QUALITY CONTROL PLAN

A. The Contractor shall submit in writing the following:

1. Authorities and responsibilities of inspection and testing personnel.

2. Experience and qualifications of inspection and testing personnel to be assigned and location of any (for hire) testing facility to be used.

B. The Contractors proposed quality control plan shall be submitted to the COR for review prior to the Contractor commencing work. The COR shall approve or disapprove the plan within 5 working days. Construction work shall not begin prior to the Contractor's receipt of written approval of the quality control plan.

C. The Contractor shall submit to the COR in writing any proposed changes to the approved plan. Proposed changes shall not be put into effect until approved in writing by the COR.

3.02 SAMPLING & TESTING

A. The Contractor shall provide and maintain appropriate measuring and testing devices, equipment, and supplies to accomplish the required measurement, testing and inspection in a timely manner. The Contractor shall take samples and perform inspections and tests necessary to achieve the quality of construction required by the contract. Sampling and testing frequency for specific items shall be as defined in the specifications.

3.03 RECORDS

A. The Contractor shall maintain current records of all inspections and tests performed.

B. The Contractor shall certify in writing that all inspections were performed in accordance with specifications. All testing and inspection records shall be submitted to the COR upon completion of the project

3.04 CERTIFICATIONS & MEASUREMENTS

A. Offsite Produced Materials. The Contractor shall furnish certificates executed by the manufacturer, supplier, or vendor, stipulating that all offsite produced materials incorporated into the work meet the applicable requirements as shown on the drawings or specifications.

B. Quantity Measurement. The Contractor shall make all measurements for computation of quantities for all work items except those specified for payment by Designed Quantity (DQ). The Contractor shall compute the quantities for periodic progress payments; the COR will compute the quantities for final payment based on measurements taken by the Contractor. All measurements are subject to verification. The Contractor shall submit all field notes, calculation sheets, and other data used to determine quantities. The Contractor shall certify in writing as to the accuracy of the measurements and computations submitted.

3.05 BASIS OF PAYMENT

Quality Control shall be considered incidental to the bid items and no additional payment will be made.

SECTION 01720

CONSTRUCTION STAKING

PART 1 - GENERAL

1.01 WORK INCLUDED

A. This work shall consist of the construction staking of the banner locations, and other items in accordance with the drawings and specifications. The work includes the furnishing of all labor, equipment, instruments, materials, transportation and other incidentals necessary to complete the construction staking in accordance with these specifications and acceptable engineering practice.

PART 2 - PRODUCTS

2.01 GOV’T FURNISHED CONTROL

A. The Forest Service will assist in location the banner post on this project if the bid item is selected for award under this contract.

2.02 STAKES

A. Identification stakes and hubs shall be of sufficient length and width to provide a solid set in the ground and to provide space for marking above ground when applicable. Other dimensions and materials may be used, such as steel reinforcing bars, wire flagging and markers, and metal pins, if approved in writing by the COR.

PART 3 - EXECUTION

3.01 GENERAL

A. The Contractor shall be required to provide all necessary staking and control for all phases of construction. The contractor shall use the data and information shown on the project drawings to establish the location of all facilities to be constructed under this contract.

3.02 BASIS OF PAYMENT

Incidental to the applicable Bid Schedule Items.

SECTION 02220

SELECTIVE DEMOLITION

PART 1 GENERAL

1.01 WORK INCLUDED

A. This work shall consist of the removal and satisfactory disposal of both rock / concrete gate columns at the site & other items as shown on the drawings and specified here-in.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.01 REMOVAL OF STRUCTURES

A. The Contractor shall execute all demolition work in a way not to damage adjacent facilities designated to remain.

3.02 DISPOSAL

A. All demolition debris shall become the property of the Contractor and be removed from Government Land.

3.03 BASIS OF PAYMENT

Incidental to the applicable Bid Schedule Items.

SECTION 02315

STRUCTURAL EXCAVATION FOR MINOR STRUCTURES

PART 1 - GENERAL

1.01 WORK INCLUDED

A. This work shall consist of excavation to construct footers and slabs, disposal of excess excavation, drainage excavation, and excavation of unsuitable material if needed for the complete construction of the project.

B. Site grading shall consist of the excavation and disposal of the existing surfacing, bedding and sub-grade regardless of its nature to the depth necessary to accommodate the new concrete walkway and related structures.

PART 2 - PRODUCTS

2.01 FILL MATERIAL

A. Imported NC DOT approved ABC stone.

PART 3 - EXECUTION

3.01 EXCAVATION

A. Excavate foundation pits to a width and length that allows room for work. Provide a firm foundation of uniform density throughout its length and width. Do not place concrete until the depth of excavation and the foundation material have been approved in writing by the Contracting Officer.

3.02 UTILIZATION OF EXCAVATED MATERIALS

A. All excavated material shall be disposed off government land. Excavated areas shall be backfilled with suitable material when necessary to complete the work.

Incidental to applicable Bid Schedule Items.

SECTION 02370

EROSION AND SEDIMENTATION CONTROL

PART 1 – GENERAL

1.01 WORK INCLUDED

A. This work consists of temporary and permanent measures as shown on the drawings and as specified herein, to prevent and control soil erosion and sedimentation.

PART 2 – PRODUCTS

2.01 SILT FENCE

A. Silt fence shall be prefabricated with 1-1/2" square, hardwood posts, Mirafi Silt Fence, or approved equal.

B. Straw bales shall be approximately 36 inches in length, rectangular shape and weigh approximately 65 pounds.

PART 3 – EXECUTION

3.01 INSTALLATION

A. All erosion control devices shall be installed prior to commencing clearing & grubbing operations.

B. Install silt fence in accordance with manufacturer’s instructions. Caution shall be used when installing along streams and creeks. Install at locations as directed by the COR.

3.02 MONITORING

A. The Contractor shall monitor the performance of all erosion and sediment control practices and make minor adjustments as needed on a day-to-day basis. Silt fences shall be inspected after each rainfall and sediments deposits must be removed when they reach a maximum of 1/3 the height of the fence. Deteriorated or damaged fabrics must be replaced immediately.

B. Temporary controls shall be dismantled and disposed of after the disturbed soil has been re-vegetated.

PAY ITEM PAY UNIT

Temporary & Permanent Erosion and Sedimentation Control ………………..…………...…incidental to the bid items shown in the bid schedule.

SECTION 03100

CONCRETE FORMWORK

PART 1 – GENERAL

1.01 WORK INCLUDED

A. This section covers all concrete formwork, expansion joints, and related accessories.

PART 2 - PRODUCTS

2.01 FORMS

A. Forms shall be wood, plywood, hardboard, or metal and shall be approved by the COR.

B. Form oil shall be non-staining type.

2.02 EXPANSION, CONSTRUCTION and CONTROL JOINTS

A. Expansion and Construction joints shall be pressure treated #2 Southern Yellow Pine.

PART 3 - EXECUTION

3.01 FORM CONSTRUCTION

A. Forms shall be built tight, in proper alignment, and adequate to resist the stresses of concrete placement without deformation.

B. Forms shall be constructed to produce the required concrete surface.

3.02 JOINTS

A. Expansion and construction joints shall be formed to the full depth of the joint. Install three (3) ½” dia. X 24” long smooth dowels at each joint.

B. Control joints shall be saw cut at 6 feet maximum intervals along the entire length of the concrete walkway. Joints shall be a minimum of 1 inch deep.

3.03 BASIS OF PAYMENT

NOT A PAY ITEM. Incidental to 03300 Cast-in-Place Concrete.

SECTION 03200

CONCRETE REINFORCEMENT

PART 1 – GENERAL

1.01 WORK INCLUDED

A. This section covers all concrete reinforcement and its accessories.

1.02 REFERENCES

PART 2 - PRODUCTS

2.01 REINFORCING

A. Reinforcing steel shall comply with ASTM A615, Grade 40, unless otherwise shown on the drawings.

B. Reinforcing mesh shall comply with ASTM A185 and shall be six inch opening, 10 gauge.

PART 3 – EXECUTION

3.01 PLACEMENT

A. Reinforcement bars & mesh shall conform to the sizes & spacing as shown on the drawings.

B. Field bending & cutting shall be permitted if performed in accordance with ACI Code.

C. Reinforcement shall be free from dirt, oil, paint, grease mill scale and loose or thick rust when concrete is placed.

D. Woven wire mesh shall be hooked and/or supported during the placement of concrete slabs to ensure proper embedment as detailed.

E. Reinforcement shall be secured against displacement caused by construction loads or placing of concrete. All bar intersections shall be tied with annealed wire of not less than 16 gauge.

F. Depth of cover, radius of bends & deformations shall be in accordance with ACI 318.

NOT A PAY ITEM. Incidental to 03300 Cast-in-Place Concrete.

SECTION 03300

CAST-IN-PLACE CONCRETE

PART 1 GENERAL

1.01 WORK INCLUDED

A. This work includes furnishing and placing all cast-in-place concrete.

1.02 REFERENCES

A. The latest editions of the following specifications and recommended practices shall govern:

ACI 301 - Specifications for Structural Concrete for Buildings

ACI 305 - Hot Weather Concreting

ACI 306 - Cold Weather Concreting

PART 2 PRODUCTS

2.01 CONCRETE

A. Aggregate shall conform to the requirements of AASHTO M6 and AASHTO M80, and shall be well graded from fine to coarse within designated limits.

B. Portland Cement shall comply with ASTM C150, Type 1. Supplier shall provide mill certification of compliance with specification.

C. Water shall be clean, fresh, and free from injurious amounts of minerals or foreign substances.

D. Additives or air entrainment agents shall comply with ASTM C-260.

E. All concrete shall have a minimum compressive strength of 3000 psi at 28 days. Concrete shall be air-entrained and shall contain not less than 3% and not more than 6% entrained air determined by test procedure AASHTO T 152 . Slump shall not exceed 3 inches for vibrated concrete. The design of the concrete mixture shall be the responsibility of the Contractor.

PART 3 EXECUTION

3.01 PROTECTION

A. No concrete shall be discharged into live streams.

3.02 PREPARATION

A. The sub-grade and all formwork shall be inspected and approved by the COR prior to work beginning.

B. The Contractor shall give the COR a minimum of 24 hours written notice before placing concrete.

3.03 PLACING CONCRETE

A. "Ready-Mixed Concrete" may be employed if the time interval between mixing at the plant and discharge into the form does not exceed 1-1/2 hours. The batch ticket shall show the time the mix was batched.

B. All concrete shall be placed within 1-1/2 hours from the time of mixing. No concrete shall be placed after it has started its initial set or with a temperature above 90 degrees F.

C. Concrete shall be placed in such a manner as to avoid segregation of the mixture. Concrete shall be spread in horizontal layers when practicable and shall not be freely dropped more than five (5) feet. Depositing a large quantity of concrete and flowing or working it along the forms will not be permitted.

D. Mechanical vibrators shall be used for consolidation of concrete. Concrete shall be consolidated within 15 minutes after placement. A minimum of two vibrators, in working order, shall be on the job during concrete placement. If consolidation of concrete with mechanical vibrators is impractical, hand tamping, rodding and spading shall be permitted.

E. Concrete plant standards and truck mixer and agitator standards shall be as recommended by the National Ready Mix Association.

3.04 FINISHING & CURING

A. Finishing

1. All finishes shall be made without use of cement or other dusting materials.

2. Concrete shall be struck to proper grade and surface finished with float trowels.

3. At all exposed form surfaces, remove all ties, fill all form tie holes and imperfections (i.e., "honeycombing") with dry cement mortar, remove all lines, and then "sack" or finish to match adjacent surfaces.

4. Final finish shall be heavy broom perpendicular to the trail.

B. Curing

1. Concrete shall be protected against rapid drying & cured in accordance with ACI 308 Guide to Curing Concrete.

3.05 WEATHER LIMITATIONS

A. Cold weather concreting shall meet the requirements of ACI 306R-99.

B. Hot weather concreting shall meet the requirements of ACI 305R-99.

3.06 SAMPLING & TESTING

A. Sampling and testing shall not be required.

3.06 BASIS OF PAYMENT

PAY ITEM PAY UNIT

Cast in Place Concrete ……………………………...............................…....Square Feet

SECTION 04410

STONE MASONRY

PART 1 - GENERAL

1.01 WORK INCLUDED

A. This section shall consist of furnishing and installing all stone masonry as called for on the plans or specified herein. The stone masonry shall be installed on the prepared foundation in accordance with these specifications and in conformity with the lines, grade, sections, and dimensions shown on the drawings.

PART 2 - MATERIALS

2.01 STORAGE & DELIVERY

A. Stone shall be stored on wood supports clear of the ground. Edges and exposed faces shall be protected from damage and from staining. Stone shall be stacked in the same position as the intended position in finished work.

2.02 MATERIALS

A. The Contractor shall submit samples of stone for approval by the Contracting Officer. The cut stone shall match the existing stones in size and composition.

B. Mortar shall be non-staining Cement as approved by the COR.

C. Fine aggregate shall meet the requirements of ASTM C 144, natural, and pass the No. 6 mesh screen. Sand for pointing mortar shall pass the No. 12 sieve.

D. Water shall be of potable quality.

PART 3 EXECUTION

3.01 GENERAL

A. All masonry shall be constructed by qualified Masons with a minimum of 5 years experience.

B. Stone shall be laid in a pattern to match existing rockwork at the site.

C. Care shall be taken to prevent the bunching of small stones or stones of the same size.

D. The maximum and minimum projections of rock faces beyond the surface plane shall not vary from each other by more than 2 inches.

3.02 MORTAR BEDS & JOINTS

A. Each stone shall be set in a full bed of mortar and topped to an even bearing. Sawing through mortar joints to correct bearing or adjust joint shall not be allowed.

B. If a stone is loosened after the mortar has taken initial set, it shall be removed, the mortar cleaned off, and the stone re-laid with fresh mortar.

C. All joints shall be recessed and rubbed smooth to leave stones projecting with mortar recessed. Joints shall generally be 1/2” to 1” in thickness.

3.03 WEATHER LIMITATIONS

A. No placing of stone shall be done in freezing weather except by written permission from the COR and then only by the use of such methods as prescribed for preparing the materials and protecting the work after laying. Such permission and the use of the methods prescribe shall not, however, release the contractor from the obligation to build a satisfactory structure. All work damaged by cold weather shall be removed and replaced. In hot or dry weather the masonry shall be satisfactorily protected from the sun and shall be kept wet for a period of at least three days after completion.

B. Masonry which is less than three days old shall be protected from freezing by methods approved by the COR.

3.09 BASIS OF PAYMENT

PAY ITEM PAY UNIT

Column Rock (all 4 sides each solumn) ………………….…..…. Lump Sum

SECTION 05520

METAL BRACKET PAINTING

PART 1 GENERAL

1.01 WORK INCLUDED

A. This work consists of furnishing and installing guardrails and handrails & associated fittings as shown on the drawings and as specified herein.

PART 2 PRODUCTS

2.01 Brackets shall be as shown on the drawings.

2.02 PAINT

A. Primer (1 coat) shall be Pitt-Guard 95-245 Series by Pittsburgh Paints, or approved equal.

B. Paint (2 coats) shall be Pitthane 95-8600 semi-gloss by Pittsburgh Paints, or approved equal. Color shall match color on gate hardware.

PART 3 EXECUTION

3.01 SUBMITTALS

A. Contractor shall submit shop drawings for approval prior to fabrication.

3.02 INSTALLATION

A. shall be installed to the details shown on the drawings.

B. All pieces shall be cut square on bearings, closely fitted and plumb.

3.03 PAINTING

A. No exterior painting shall be done in rainy, damp, or frosty weather or until the surface is thoroughly dry.

No paint shall be applied when the temperature is below 40 degrees or when that temperature is likely to be reached within 48 hours.

B. All paint shall be applied in accordance with the manufacturer's recommendations unless otherwise directed.

C. All coats shall be thoroughly dried before applying succeeding coats with sanding between coats where necessary. Comply with manufacturer's recommendation for drying time between succeeding coats.

D. Finish coats shall be smooth, free of brush marks, streaks, laps, or pole of paints, and skipped or missed areas. Finished metal surfaces shall be free of skips, voids or pinholes in any coat.

E. Keep brushes, rollers, and spraying equipment clean, dry, free from contaminates, and suitable for the finish required.

3.04 BASIS OF PAYMENT

PAY ITEM PAY UNIT

Incidental to the bid items shown on the bid schedule …………….………………………..