2 Security Gates and Fencing Project Specifications.pdf

CITY OF FAIRFAX, POLICE STATION SECURITY FENCING

GENERAL SITEWORK REQUIREMENTS 01 0200 - 1

SECTION 01 0200 – GENERAL SITEWORK REQUIREMENTS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. The provisions of the Contract Documents apply to the work of this Section.

1.2 SITEWORK LAYOUT

A. Monuments and Benchmarks

1. Maintain all monuments, property corners, bench marks and other reference points.

2. If these are disturbed or destroyed during construction operations, have them replaced by a surveyor licensed in the Commonwealth of Virginia. This replacement shall be at no additional expense to the Contract.

B. Laying out the Work.

1. Obtain project control from Surveyor of Record provided by the City, Timmons Group, and set bench marks as may be required.

2. Protect these points throughout construction.

3. Layout work utilizing these reference points.

C. Record Drawings

1. Maintain a record of the horizontal and vertical locations of all underground utilities and piping, both newly installed and existing encountered.

2. Maintain a record of any variations of the work.

3. Identify and accurately locate capped utilities and other subsurface structural, electrical, or mechanical conditions.

4.

5. Maintain handwritten record drawings throughout construction, recording information as work is performed. Record Drawings shall be available for periodic inspection during the course of the project.

6. Submit final, complete handwritten record drawings at Substantial Completion.

7. Record Drawings shall be prepared and certified by the Surveyor of Record.

1.3 EASEMENTS (N/A)

1.4 MAINTENANCE OF TRAFFIC

A. Maintain vehicular and pedestrian traffic to the building and secured parking lot at all times. Comply with all applicable safety requirements. Gates shall be installed in sequence to facilitate traffic into and from the parking area.

GENERAL SITEWORK REQUIREMENTS 01 0200 - 2

1.5 CORRELATION OF CONSTRUCTION DOCUMENTS

A. Review construction documents thoroughly prior to the start of construction.

B. Report any conflict or discrepancy discovered in the Construction Documents to the Engineer prior to the start of construction.

C. Report any conflict or discrepancy discovered between the Construction Documents and state and local governmental regulations to the A/E prior to the start of construction.

1.6 PROJECT CONDITIONS

A. The conditions existing at the time of inspection for bidding purposes will be maintained by the City to the extent practical. However, minor variations may occur due to natural occurrences prior to the start of clearing work.

B. The location of existing underground utilities indicated is not guaranteed. Field locate all existing underground utilities in the area of work, regardless of whether or not they are indicated. Call “Miss Utility” prior to the start of demolition work for assistance in the location of existing underground utilities.

C. Should charted, uncharted or incorrectly charted utilities be encountered during demolition, contact the A/E immediately for instructions. Cooperate with City and utility companies to keep services and facilities in operation.

1.7 SCHEDULING

A. The parking lot must be always secured during construction. Plan workflow accordingly.

PART 2 - PRODUCTS

Not Applicable

PART 3 – EXECUTION

3.1 PROJECT CLEAN UP

A. Clean site as construction progresses. Do not allow trash or other waste materials to accumulate.

B. Prior to requesting the punch-list inspection, clean the site to the following requirements:

1. Wash all walks and pavements within project area. Power wash as required to bring surfaces to their original conditions prior to construction.

2. The remainder of the site shall be broom clean.

3. Remove all trash and debris.

3.2 EXISTING FACILITIES

A. Preserve existing signs, markers, guardrails, fences and other amenities, to be retained, in their original condition unless written permission is obtained for their removal and replacement.

B. Replace damaged facilities at no additional cost to the Contract.

GENERAL SITEWORK REQUIREMENTS 01 0200 - 3

END OF SECTION 01 0200

SELECTIVE SITE DEMOLITION 02 4113 - 1

SECTION 02 4113 - SELECTIVE SITE DEMOLITION

1.2 SUMMARY

A. This Section includes the following:

1. Demolition and removal of existing asphalt and/or concrete pavement, concrete and/or asphalt walks, curbs and gutters, and other exterior site items indicated or not indicated which interfere with the Work.

2. Removal and/or relocation of existing underground utilities.

3. Removal and replacement of fencing equipment.

4. Removal and relocation of existing light poles.

5. Removal and disposal of material from dump areas.

1.3 DEFINITIONS

A. Remove: Remove and legally dispose of items except those indicated to be reinstalled, salvaged, or to remain the City's property.

B. Remove and Reinstall: Remove items indicated; clean, service, and otherwise prepare them for reuse; store on site and protect against damage. Reinstall items in the same locations or in locations indicated.

C. Existing to Remain: Protect items indicated to remain against damage and soiling. When permitted by the A/E, items may be removed to a suitable, protected storage location and then cleaned and reinstalled in their original locations.

1.4 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain the City's property, remove demolished materials from the site with further disposition at the Contractor's option.

B. Storage of removed items or materials on-site will not be permitted.

C. Historical items, relics, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, antiques, and other items of interest or value to the City, which may be encountered, remain the City's property. Carefully remove and deliver promptly to the City.

1.5 SUBMITTALS

A. Prior to construction photograph or videotape, in sufficient detailed, existing conditions of adjoining construction and site improvements that might be misconstrued after construction as damage caused by the Work.

B. Record drawings at Project closeout.

C. See Section 01 0200.Proposed dust-control measures.

SELECTIVE SITE DEMOLITION 02 4113 - 2

D. Schedule of selective demolition activities indicating the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity.

2. Interruption of utility services.

3. Coordination for shutoff, capping, and continuation of utility services.

4. Detailed sequence of selective demolition and removal work to ensure uninterrupted progress of City's on-site operations.

5. Coordination of City's continuing occupancy of portions of existing building and of City's partial occupancy of completed Work.

6. Locations of temporary means of ingress and egress.

E. Inventory of items to be removed or turned over to City.

1.6 QUALITY ASSURANCE

A. Regulatory Requirements: All work shall comply with Federal, State and Local laws and regulations concerning hauling and disposal of demolition debris, including hazardous wastes, if any..

B. Conduct a pre-construction conference with the City and A/E prior to the start of work and obtain all necessary permits for this work, including a City License to conduct work within the corporate limits of the City.

1.7 PROJECT CONDITIONS

A. City assumes no responsibility for actual condition of items or structures to be demolished. Conditions existing at the time of inspection for bidding purposes will be maintained by the City to the extent practical.

However, minor variations may occur prior to the start of demolition work.

B. Should charted, uncharted or incorrectly charted utilities be encountered during demolition, contact the A/E immediately for instructions. Cooperate with City and utility companies to keep services and facilities in operation.

C. Do not interrupt existing utilities serving facilities occupied and used by the City and others, except when permitted in writing by the City. Provide acceptable temporary utility service as required to maintain City’s operations.

1.8 SCHEDULING

A. City will occupy the Police Station adjacent to the Work. Conduct selective demolition so that Police operations will not be disrupted. Provide not less than 72 hours notice to City of activities that will affect City's operations.

B. Arrange selective demolition schedule, approved by the City, so as not to interfere with City's on-site operations.

C. Notify and coordinate any required relocation and/or removal of existing underground utilities, poles, meters or other above ground appurtenances with the appropriate utility company (i.e. power, telephone, cable and natural gas/propane) prior to the start of selective demolition work.

1.9 USE OF EXPLOSIVES

A. Do not use explosives to perform selective site demolition work.

SELECTIVE SITE DEMOLITION 02 4113 - 3

(Not Applicable)

PART 3 - EXECUTION

3.1 EXAMINATION

A. Call “Miss Utility” prior to the start of demolition work for assistance in the location of existing underground utilities. Field locate all existing underground utilities in the area of work, regardless of whether or not they are indicated.

B. Verify that utilities indicated as removed, abandoned and/or relocated have been disconnected and capped.

C. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

D. Inventory materials to be removed and materials to be removed and reinstalled or turned over to the City.

3.2 PROTECTION OF PERSONS AND PROPERTY

A. Drain, purge, or otherwise removeall dangerous materials before proceeding with selective demolition operations.

B. Conduct demolition operations and remove debris to ensure minimum interference with roads, streets, walks and other adjacent occupied and used facilities.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from City. Provide alternate routes around closed or obstructed traffic ways if required by Police operations.

C. Conduct demolition operations to prevent injury to people and damage to adjacent buildings and facilities to remain. Ensure safe passage around selective demolition area.

1. Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by the City.

2. Protect existing site improvements, appurtenances, and landscaping to remain.

D. Barricade areas of demolition occurring as part of this work, and post with warning lights as required by the City.

E. Protect structures, buildings, utilities, walks, pavements, existing vegetation and other facilities to remain from damage caused by settlement, lateral movement, undermining, washout and other hazards created by demolition operations.

3.3 POLLUTION CONTROLS

A. Perform all work in accordance with the requirements of the latest edition of the Virginia Erosion and Sediment Control Handbook and those of the local Erosion Control official.

B. Clean adjacent structures and travel surfaces daily of dust, dirt, and debris caused by the Work. Return adjacent areas to existing conditon after selective demolition.

3.4 DEMOLITION OF EXISTING FACILITIES

A. Utilities

SELECTIVE SITE DEMOLITION 02 4113 - 4

1. Coordinate the removal and/or relocation of existing utilities with the appropriate utility companies as required for the Work.

2. Remove existing utilities as indicated and terminate in a manner conforming to the City building codes.

3. Provide adequate means of support and protection during demolition and other construction operations for existing utilities that are to remain in place. Repair utilities damaged by construction operations to the satisfaction of the utility and City.

B. Asphalt Pavement

1. Remove asphalt concrete pavement by sawcutting to the full depth of the pavement. Provide neat sawcuts at the limits of pavement removal indicated.

C. Concrete Pavement, Walks and Curbs

1. Remove concrete pavement and walks to the nearest joint. Sawcut concrete if joints are not present adjacent to the area of demolition.

2. Sawcut concrete along straight lines to a depth of not less than 2 inches. Break out remainder of concrete, provided that the broken area is concealed in the finished work, and the remaining concrete is sound. At locations where the broken face cannot be concealed, grind smooth or sawcut entirely through concrete.

D. Light Poles

1. Remove and relocate light poles as indicated. If light poles are owned by a public utility, coordinate the relocation with them.

E. Fencing

1. Remove and dispose of existing chain-link fencing and other fencing as indicated on the drawings.

3.5 DISPOSAL OF DEMOLISHED MATERIALS

A. Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

B. Do not burn demolished materials or debris.

C. Transport and legally dispose of demolished materials off City's property and to the proper landfill or landfill transfer station.

3.6 CLEANUP AND REPAIR

A. Upon completion of demolition work remove all tools, equipment and demolition materials from site.

Remove demolition work area protection and leave areas clean.

B. Repair any demolition performed in excess of that required. Return elements of construction and surfaces to remain to the condition existing prior to the start of construction. Repair adjacent construction or surfaces soiled or damaged by demolition work.

END OF SECTION 02 4113

ASPHALT PAVEMENT 32 1216 – 1

SECTION 32 1216 - ASPHALT PAVEMENT

1.2 SUMMARY

A. This Section includes the following:

1. Hot-mix asphalt paving over prepared subbase.

2. Hot-mix asphalt patching.

3. Hot-mix asphalt overlays.

4. Asphalt surface treatments

a) Coal tar sealant

1.3 SUBMITTALS

A. Job-Mix Designs: Certification, by Engineer provided by the City, of approval of each job mix proposed for the Work.

B. Material Certificates: Certificates signed by manufacturers certifying that each material complies with requirements.

C. Traffic maintenance and Work Area Protection Plan: Submit a plan indicating sequencing and measures to be used for the maintenance and protection of traffic during operations within or immediately adjacent to existing roadways open to vehicular traffic. The City of Fairfax must approve this plan prior to commencement of work

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Engage an experienced installer who has completed hot-mix asphalt paving similar in material, design, and extent to that indicated for this Project and with a record of successful in-service performance.

B. Asphalt paving materials and installation shall conform to the requirements of the latest edition of the City of Fairfax Public Facilities Manual (PFM).

1.5 PROJECT CONDITIONS

A. Environmental Limitations: Do not apply asphalt materials if substrate is wet or excessively damp or if the following conditions are not met:

1. Prime and Tack Coats: Minimum ambient temperature of 50 deg F (10 deg C), and when temperature has not been below 35 deg F (1 deg C) for 12 hours immediately prior to application.

2. Asphalt Base Course: Minimum surface temperature of 40 deg F (4 deg C) and rising at time of placement.

3. Asphalt Surface Course: Minimum surface temperature of 40 deg F (4 deg C) and rising at time of placement.

ASPHALT PAVEMENT 32 1216 – 2

1.6 TESTING AND INSPECTION

A. The Owner’s testing agency will observe the asphalt placement in the parking lots and on-site areas not in Right-of-Way.

2.1 ASPHALT-AGGREGATE MIXTURE

A. General: Provide plant-mixed, hot-laid asphalt-aggregate mixture complying with the requirements of the VDOT Road and Bridge Specifications and as recommended by local paving authorities to suit project conditions.

2.2 ASPHALT MATERIALS

A. Tack Coat: ASTM D 977, emulsified asphalt or ASTM D 2397, cationic emulsified asphalt, slow setting, factory diluted in water, of suitable grade and consistency for application.

B. Prime Coat: Asphalt emulsion prime conforming to VDOT requirements.

2.3 AUXILIARY MATERIALS

A. Paving Geotextile: Nonwoven polypropylene, specifically designed for paving applications, resistant to chemical attack, rot, and mildew.

3.1 EXAMINATION

A. Verify that subgrade is dry and in suitable condition to support paving and imposed loads.

B. Proof-roll subbase using heavy, pneumatic-tired rollers to locate areas that are unstable or that require further compaction.

C. Notify Architect in writing of any unsatisfactory conditions. Do not begin paving installation until these conditions have been satisfactorily corrected.

3.2 MAINTENANCE AND PROTECTION OF TRAFFIC

A. Utilize flagmen, barricades, warning signs and warning lights as required by the Virginia Work Area Protection Manual.

3.3 PATCHING AND REPAIRS

A. Patching: Saw cut perimeter of patch and excavate existing pavement section to sound base. Recompact new subgrade. Excavate rectangular or trapezoidal patches, extending 12 inches (300 mm) into adjacent sound pavement, unless otherwise indicated. Cut excavation faces vertically.

1. Tack coat faces of excavation and allow to cure before paving.

2. Fill excavation with dense-graded, hot-mix asphalt base mix and, while still hot, compact flush with adjacent surface.

ASPHALT PAVEMENT 32 1216 – 3

B. Leveling Course: Install and compact leveling course consisting of dense-graded, hot-mix asphalt surface course to level sags and fill depressions deeper than 1 inch (25 mm) in existing pavements.

1. Install leveling wedges in compacted lifts not exceeding 3 inches (75 mm) thick.

C. Crack and Joint Filling: Remove existing filler material from cracks or joints to a depth of 1/4 inch (6 mm).

Refill with asphalt joint-filling material to restore watertight condition. Remove excess filler that has accumulated near cracks or joints.

D. Tack Coat: Apply uniformly to existing surfaces of previously constructed asphalt or Portland cement concrete paving and to surfaces abutting or projecting into new, hot-mix asphalt pavement. Apply at a uniform rate of 0.05 to 0.15 gal./sq. yd. (0.2 to 0.7 L/sq. m) of surface.

1. Allow tack coat to cure undisturbed before paving.

2. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings. Remove spillage and clean affected surfaces.

3.4 SURFACE PREPARATION

A. General: Immediately before placing asphalt materials, remove loose and deleterious material from substrate surfaces. Ensure that prepared subgrade is ready to receive paving.

B. Sweep loose granular particles from surface of unbound-aggregate base course. Do not dislodge or disturb aggregate embedded in compacted surface of base course.

C. Prime Coat: For asphalt sections less than 4” thick, apply uniformly over surface of compacted-aggregate base at a rate of 0.15 to 0.50 gal./sq. yd. (0.7 to 2.3 L/sq. m). Apply enough material to penetrate and seal, but not flood, surface. Allow prime coat to cure for 24 hours minimum.

1. If prime coat is not entirely absorbed within 24 hours after application, spread sand over surface to blot excess asphalt. Use just enough sand to prevent pickup under traffic. Remove loose sand by sweeping before pavement is placed and after volatiles have evaporated.

2. Protect primed substrate from damage until ready to receive paving.

3.5 GEOTEXTILE INSTALLATION

A. In subsurface areas where required by Engineer provided by the City apply bond coat, consisting of asphalt cement, uniformly to existing surfaces at a rate of 0.20 to 0.30 gal./sq. yd. (0.8 to 1.2 L/sq. m). Such installation shall be reimbursed by a change order.

B. Place paving geotextile promptly according to manufacturer's written instructions. Broom or roll geotextile smooth and free of wrinkles and folds. Overlap longitudinal joints 4 inches (100 mm) and transverse joints 6 inches (150 mm).

1. Protect paving geotextile from traffic and other damage and place overlay paving the same day.

3.6 HOT-MIX ASPHALT PLACING

A. Machine place hot-mix asphalt mix on prepared surface, spread uniformly, and strike off. Place asphalt mix by hand to areas inaccessible to equipment in a manner that prevents segregation of mix. Place each course to required grade, cross section, and thickness, when compacted.

1. Place hot-mix asphalt base course in number of lifts and thickness indicated.

2. Spread mix at minimum temperature of 225 deg F (107 deg C).

B. Place paving in consecutive strips not less than 10 feet (3 m) wide, except where infill edge strips of a lesser width are required.

ASPHALT PAVEMENT 32 1216 – 4

1. After first strip has been placed and rolled, place succeeding strips and extend rolling to overlap previous strips. Complete asphalt base course for a section before placing intermediate or surface courses.

C. Promptly correct surface irregularities in paving course behind paver. Use suitable hand tools to remove excess material forming high spots. Fill depressions with hot-mix asphalt to prevent segregation of mix;

use suitable hand tools to smooth surface.

3.7 JOINTS

A. Construct joints between old and new pavement, or between successive days work, to ensure continuous bond between adjoining paving sections. Construct joints free of depressions with same texture and smoothness as other sections of hot-mix asphalt course.

1. Clean contact surfaces and apply tack coat.

2. Offset longitudinal joints in successive courses a minimum of 6 inches (150 mm).

3. Offset transverse joints in successive courses a minimum of 24 inches (600 mm).

4. Construct transverse joints as required by the VDOT Road and Bridge Specifications.

5. Compact joints as soon as hot-mix asphalt will bear roller weight without excessive displacement.

3.8 COMPACTION

A. General: Begin compaction as soon as placed hot-mix paving will bear roller weight without excessive displacement. Compact hot-mix paving with hot, hand tampers or vibratory-plate compactors in areas inaccessible to rollers.

1. Complete compaction before mix temperature cools to 185 deg F (85 deg C).

B. Breakdown Rolling: Accomplish breakdown or initial rolling immediately after rolling joints and outside edge. Examine surface immediately after breakdown rolling for indicated crown, grade, and smoothness.

Repair surfaces by loosening displaced material, filling with hot-mix asphalt, and rerolling to required elevations.

C. Intermediate Rolling: Begin intermediate rolling immediately after breakdown rolling, while hot-mix asphalt is still hot enough to achieve indicated density. Continue rolling until hot-mix asphalt course has been uniformly compacted to the following density:

1. Average Density: 95 percent of reference laboratory density according to ASTM D 1559.

D. Finish Rolling: Finish roll paved surfaces to remove roller marks while hot-mix asphalt is still warm.

Surface course average density shall be 95 percent of reference laboratory density.

E. Edge Shaping: While surface is being compacted and finished, trim edges of pavement to proper alignment. Bevel edges while still hot, with back of rake or smooth iron. Compact thoroughly using tamper or other satisfactory method. Edges adjacent to curbs and curb and gutter sections shall be flush with the edge of concrete.

F. Repairs: Remove paved areas that are defective or contaminated with foreign materials. Remove paving course over area affected and replace with fresh, hot-mix asphalt. Compact by rolling to specified density and surface smoothness.

G. Protection: After final rolling, do not permit vehicular traffic on pavement until it has cooled and hardened.

H. Erect barricades to protect paving from traffic until mixture has cooled enough not to become marked.

ASPHALT PAVEMENT 32 1216 – 5

3.9 INSTALLATION TOLERANCES

A. Thickness: Compact each course to produce the thickness indicated within the following tolerances:

1. Base Course: Plus or minus 1/2 inch (13 mm).

2. Surface Course: Plus 1/4 inch (6 mm), no minus.

B. Surface Smoothness: Compact each course to produce a surface smoothness within the following tolerances as determined by using a 10-foot (3-m) straightedge applied transversely or longitudinally to paved areas:

1. Base Course: 1/4 inch (6 mm).

2. Surface Course: 3/16 inch (3 mm).

3. Crowned Surfaces: Test with crowned template centered and at right angle to crown. Maximum allowable variance from template is 1/4 inch (6 mm).

C. Check surface areas at intervals as directed by Architect.

3.10 ASPHALT PAVEMENT OVERLAY

A. The Contractor shall mill and sweep the existing asphalt by a minimum depth of 1.5” in all areas of asphalt overlay prior to placement of overlay. The area of milling shall overlap the edge of overlay by a minimum of two feet to provide a clean and smooth transition to the existing asphalt.

B. The Contractor shall repair all soft areas, to include subgrade, prior to placement of asphalt overlay.

C. The Contractor shall place a tack coat (binder coat) to existing asphaltic surfaces that are to receive an asphaltic overlay.

3.11 FIELD QUALITY CONTROL

A. Testing Agency: City will provide a qualified independent testing agency to perform field inspections and tests and to prepare test reports.

1. Testing agency will conduct and interpret tests and state in each report whether tested Work complies with or deviates from requirements.

B. Additional testing, at Contractor's expense, will be performed to determine compliance of corrected Work with requirements.

C. Remove and replace or install additional hot-mix asphalt where test results or measurements indicate that it does not comply with requirements.

END OF SECTION 32 1216

CHAIN-LINK FENCES AND GATES (PVC CLAD) 32 3113.19 - 1

SECTION 32 3113.19 –CHAIN-LINK FENCES AND GATES (PVC CLAD)

1.2 WORK INCLUDED

A. Polyvinyl Chloride (PVC) clad chain link fence and gates

1.3 SUBMITTALS

A. Product Data: Submit manufacturer and related technical data and installation instructions for fencing, fabric, gates and accessories.

B. Shop Drawings: Submit shop drawings indicating location of gates and fence (with dimensions), height, post locations, details of post installation, gate swing, hardware and accessories.

C. Identify PVC touch up paint.

D. Samples: None required

E. Provide qualifications of gates and fence installer.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Engage an experienced installer who has completed chain-link fences and gates similar in material, design, and extent to those indicated for this Project and whose work has resulted in construction with a record of successful in-service performance.

B. Source Limitations for Chain-Link Fence: Obtain each color, grade, finish, type, and variety of component for chain-link fence from one source with resources to provide chain-link fence of consistent quality in appearance and physical properties.

C. Source Limitations for Gates: Obtain each color, grade, finish, type, and variety of components for gates from one source with resources to provide gates of consistent quality in appearance and physical properties.

1.5 PROJECT CONDITIONS

A. Field Measurements: Verify layout information for chain-link fences and gates indicated in relation to property survey and existing structures. Verify dimensions by field measurements.

2.1 GENERAL:

A. Subject to compliance with requirements, manufacturers offering products which may be incorporated in the work include, but are not limited to, the following:

1. PVC Coated Steel Fencing and Fabric:

CHAIN-LINK FENCES AND GATES (PVC CLAD) 32 3113.19 - 2

a) Colorguard Fence Products, Inc.

b) American Chain Link Fence Company

c) Semmerling Fence & Supply, Inc.

d) Anchor Fence, Inc.

2.2 FABRIC:

A. Steel Fabric: Comply with Chain Link Fence Manufacturers Institute (CLMFI) Product Manual. Provide one-piece fabric widths. Wire size includes zinc coating.

B. Size: 2-inch diamond mesh, 9-gauge (0.148-inch diameter) wire.

C. PVC Coating: ASTM F668, Class 2B (fused and adhered) PVC coating, black color. Bonded or extruded & glued fabric may not be used.

D. Chain link fence shall be finished with twist or barb selvage as a climb-over deterrent. Selvage shall be knuckled at the bottom.

2.3 FRAMING:

A. Strength requirements for posts and rails shall conform to ASTM F 669.

B. Pipe shall be straight, true to section, material and sizes specified.

C. Steel Framework, General: Posts, rails, braces and gate frames.

1. Type II Pipe: Manufactured from steel conforming to ASTM A 569 or A 446, grade D, cold formed, electric welded with minimum yield strength of 50,000 p.s.i. and triple coated with minimum 0.9 oz.

Zinc per square foot after welding, a chromatic conversion coating and a clear polymer overcoat.

Corrosion protection on inside surfaces shall protect the metal from corrosion when subjected to the salt spray test of ASTM B 117 for 300 hours with the end point of 5% Red Rust.

2. PVC-Coating finish: In accordance with ASTM F668, Class 2B (fused and adhered) apply supplemental color coating of 10 to 15 mils (0.254 – 0.38mm) of thermally fused PVC in color to match fabric.

D. End, Corner and Pull Posts:

1. For fabric height up to 6’ - 2.875” OD Type II steel pipe (5.79 lb/ft).

2. For fabric height over 6’ - 4” OD Type II steel pipe.(9.11 lb/ft).

E. Line Posts:

1. For fabric height up to 6’ - 1.90” OD Type II steel pipe (2.28 lb/ft).

2. For fabric height over 6’ - 2.375” OD Type II steel pipe (3.65 lb/ft).

F. Top & Bottom Rail:

1. Manufacturer’s longest lengths, with expansion-type couplings, approximately 6” long, for each joint.

Provide means for attaching rail securely to each gate corner, pull, & end post.

a) 1-5/8” NPS Type II steel pipe.

G. Intermediate and/or Center Rail:

1. Same material as top rail. Manufacturer’s standard galvanized steel cap required for each end.

CHAIN-LINK FENCES AND GATES (PVC CLAD) 32 3113.19 - 3

2.4 FITTINGS AND ACCESSORIES:

A. Material: Comply with ASTM F 626. Mill finished galvanized steel, to suit manufacturer’s standards.

1. Zinc Coating: Unless specified otherwise, galvanize steel fence fittings and accessories in accordance with ASTM A 153, with zinc weights indicated.

2. Supplemental Color Coating: In accordance with ASTM F668, Class 2B (fused and adhered), apply supplemental color coating of 10 to 15 mils (0.254 – 0.38mm) of thermally fused PVC in color to match fabric. Apply to exterior surfaces and, except inside cap shapes, to exposed interior surfaces.

Color to match chain link fabric.

B. Tension Wire: 7 gauge (0.177”diameter) metallic coated steel marcelled tension wire conforming to ASTM A 824 with finish to match fabric.

1. PVC-Coated finish: In accordance with ASTM F668, Class 2B (fused and adhered), apply supplemental color coating of 10 to 15 mils (0.254 – 0.38mm) of thermally fused PVC in color to match fabric.

C. Wire Ties:

1. 9 gauge [0.148” (3.76mm)] galvanized steel wire for attachment of fabric to line posts.

2. Double wrap 13 gauge [0.092” (2.324mm)] for rails and braces.

3. Hog ring ties of 12-1/2 gauge [0.0985” (2.502mm)] for attachment of fabric to tension wire

D. Post Brace Assembly:

1. Manufacturer’s standard adjustable brace at end of gate posts and at both sides of corner and pull posts, with horizontal brace located at mid height of fabric. Provide same material as top rail for brace, and truss to line posts with 0.375” diameter rod and adjustable tightener. Manufacturer’s standard galvanized steel cap required for each end.

E. Post and Line Caps: Weathertight closure cap required for each post. If top rail is required, use line post caps with loop.

F. Tension or Stretcher Bars: Hot-dip galvanized steel with minimum length 2-inchesless than full height of fabric, minimum cross section of 3/16-inch by ¾-inch and minimum 1.2 oz. zinc coating per sq. ft. of surface area. One bar is required for each gate and end post and two for each corner and pull post, except where fabric is integrally woven into post.

G. Tension and Brace Bands: Minimum ¾-inch wide hot-dip galvanized steel with minimum 1.2 oz. zinc coating per sq. ft. of surface area.

1. Tension bands: Minimum 14 gauge (0.074”) thick.

2. Tension and Brace bands: Minimum 12 gauge (0.105”) thick.

H. Nuts and bolts shall be galvanized but not vinyl coated. Provide touch up paint and color coat nuts and bolts to match fabric.

2.5 POST SETTING MATERIALS

A. Comply with the requirements for VDOT Std. Class A3 concrete.

2.6 GATES:

1. Gate specifications have been provided on the site plan and gates shall be Wallace Perimeter Security speed gates, or equal.

CHAIN-LINK FENCES AND GATES (PVC CLAD) 32 3113.19 - 4

3.1 INSTALLATION:

A. General: Install fence in compliance with ASTM F 567 and manufacturers recommendations. Do not begin installation and erection before final grading is completed, unless otherwise permitted. Apply fabric to outside of framework, unless otherwise indicated.

B. Locate terminal post at each fence termination and change in horizontal or vertical direction of 30º or more, or as indicated on plans.

C. Excavation:

1. Drill or hand excavate (using post hole digger) holes for posts to diameters and spacing indicated, in firm, undisturbed or compacted soil.

2. Holes in asphalt or concrete surfaces will be cut by core-drilling with a bit of diameter at least equal to the required hole diameter. Holes in concrete may be formed prior to placing concrete.

3. Excavate holes for each post to minimum diameter recommended by fence manufacturer, but not less than 4 times largest cross-section of post.

4. Excavate hole to depths approximately 6” lower than post bottom, with bottom of posts set not less than 36” below finish grade surface.

D. Setting Posts:

1. Space shall be 8-feet on center maximum, unless otherwise indicated.

2. Center and align posts in hole, 6-inches above bottom of excavation.

3. Protect portions of concrete posts above ground from concrete splatter. Place concrete around post and vibrate or tamp for consolidation. Check each post for vertical and top alignment, and hold in position during placement and finishing operations.

4. Extend concrete above grade and slope all around (dome) to allow for drainage away from post.

Uniformly and neatly texture the concrete surface with a broom finish. Remove any spilled or splashed concrete from the post and surrounding area immediately.

E. Top Rails:

1. Run rail continuously through line post caps, bending to radius for curved runs and at other posts terminating into rail end attached to posts or post caps fabricated to receive rail. Provide expansion couplings as recommended by fencing manufacturer. Rails shall be at the same elevation to the extent practical.

F. Center Rails:

1. Install in one place between posts and flush with post on fabric side, using rail ends and special offset fittings where necessary. Provide center rails for fence 12-feet or taller, or as indicated on drawings.

G. Bottom Rails:

1. Install in one piece between posts and flush with post on fabric side, using rail ends and special offset fittings when necessary.

H. Brace Assemblies:

1. Install braces so posts are plumb when diagonal rod is under proper tension.

I. Top and Bottom Tension Wire:

1. Install tension wires through post cap loops before stretching fabric and tie to each post cap with not less than same gauge and type of wire. Pull wire taut, without sags. Fasten fabric to tension wire, CHAIN-LINK FENCES AND GATES (PVC CLAD) 32 3113.19 - 5 using 11 gauge galvanized steel hog rings spaced maximum 24-inches on center Install where top and/or bottom rails are not specified on plans.

J. Fabric:

1. Burry the bottom 6-inch fencing fabric below grade. Pull fabric taut and tie to posts, rails and tension wires. Attach fabric with wire ties to line posts at 12 to 15-inches (381mm) on center and to rails, braces, and tension wire at 24-inches (600 mm) on center. Install fabric on security side of fence, unless otherwise indicated, and anchor to framework so that fabric remains in tension after pulling force is released.

K. Stretcher Bars:

1. Thread through fabric 4-inches on center ., and secure to end, corner, pull and gate posts with tension bands spaced maximum 15-inches on center .

L. Accessories

1. Tie Wires: Use U-shaped wire, conforming to diameter of pipe to which attached, clasping pipe and fabric firmly with ends twisted at least 2 full turns. Bend ends of wire to minimize hazard to persons or clothing.

M. Fasteners:

1. Install nuts for tension bands and hardware bolts on site of fence opposite fabric side. Peen ends of bolts or score threads to prevent removal of nuts.

N. Gates:

1. Install gates plumb, level, and secure for full opening without interference. Install ground-set items in concrete for anchorage. Adjust hardware for smooth operation and lubricate where necessary.

3.2 FINISHING

A. Remove and replace sections of fence and fittings with damaged PVC coating. Minor aesthetic damage may be touched up with a suitable spray on material provided by the manufacturer.

B. Clean up debris and unused material and remove from the site.

END OF SECTION 32 3113.19