Questions_9-13.pdf

9. Question: Sod – The specs call for 70% Kentucky 31 or approved other grass… Will Bermuda or Fescue be approved?

9. Answer: Of course Kentucky 31 is fescue and will be approved. Bermuda may be approved depending upon the time of year sod is placed. Bidders are advised that all stabilization shall be in accordance with the Tennessee Department of Environment and Conservation’s Sediment and Erosion Control Manual (latest edition).

10. Question: Fencing – The plans are showing a detail for the installment of the perimeter fence (Sheet C1.1, Detail A9) but I do not see any specification on the fence… What requirements should the fence meet?

10. Answer: See attached the fencing specification.

11. Question: Demo Fence – Will the section of fence that is called to be demo’d have a 2’ wide/4” thick concrete footer like the one we are installing? (Sheet C1.1, Detail A9).

11. Answer: Yes

12. Question: Will the contractor staging area be required to have a fence around the perimeter?

12. Answer: No

13. Question: Will a SWPPP (Storm Water Pollution Prevention Plan) be required?

13. Answer: No

051404 CHAIN LINK FENCE AND GATES 02831-1

SECTION 02831

CHAIN LINK FENCE AND GATES

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Fence framework, fabric, and accessories.

B. Excavation for post bases.

C. Concrete anchorage for posts and center drop for gates.

D. Manual gates and related hardware.

1.2 RELATED SECTIONS

A. Section 02200 - EARTHWORK.

B. DIVISION 3 - CONCRETE

1.3 QUALITY ASSURANCE

A. Manufacturer: company specializing in commercial quality chain link fencing with two years experience.

B. Installation: ANSI/ASTM F567.

1.4 SHOP DRAWINGS AND PRODUCT DATA

A. Submit shop drawings and product data.

B. Clearly indicate plan layout, grid, spacing of components, accessories, fitments, and anchorage.

C. Submit manufacturer's installation instructions and procedures, including standard details of fence and gate installation.

1.5 JOB CONDITIONS

A. Existing Conditions: Carefully maintain benchmarks, existing fences, roads, traffic, monuments, and survey control references.

PART 2 PRODUCTS

2.1 MATERIALS

A. General: Except as otherwise specified.

1. All fence materials shall be manufactured in the United States of America.

2. All fence framework shall be one of the following:

a. Type I: Schedule 40 steel pipe (ASTM F-1083) with 1.8 ounces of zinc coating per square foot of surface area conforming to ASTM A-120.

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b. Type II: High strength steel pipe conforming to ASTM A-569, external surface triple coated with 1.0 ounces of zinc per square foot, 30 micrograms of chromate per square inch and

0.5 mils of clear polyurethane, internal surface zinc-coated in accordance with ASTM A- 446 or with a zinc-rich organic coating havi ng an 87% minimum zinc powder loading.

3. All pipe dimensions specified are OUTSIDE DIMENSIONS, all weights specified are POUNDS PER LINEAR FOOT, and all dimensions, weights, and sizes specified shall be MINIMUM.

B. Materials Shall Be:

1. Fabric: No. 9 ASE gauge steel wire woven in 2 inch maximum size mesh, 7'-0" high, with twisted top and bottom selvage, coated with 1.2 ounces of zinc per square foot of wire surface.

2. Barbed wire: two strand twisted No. 12-1/2 ASW gauge steel wire with No. 14 ASW gauge steel barbs on 5 inch maximum centers, coated with 0.8 and 0.6 ounces of zinc respectively per square foot of wire surface.

3. Terminal (end, corner, and pull) posts: 3 inch OD pipe, Type I at .79 pound or Type II at 4.64 pound.

4. Intermediate Post: 1.9 inch OD pipe, Type I at 2.72 pound or Type II at 2.13 pound.

5. Gate posts for single gates, and for each leaf of double gates:

a. Gate leaves up to 6 feet wide: 3 inch OD pipe, Type I at 5.79 pound or Type II at 4.64 pound.

b. Gate leaves over 6 to 13 feet wide: 4 inch OD pipe, Type I at 9.1 pound or Type II at 6.56 pound.

c. Gate leaves over 13 feet wide: 6-5/8 inch OD pipe, Type I at 18.97 pound.

6. Top rails: 1.66 inch OD pipe, Type I at 2.27 pound or Type II at 1.86 pound.

7. Gates, sizes, and type as indicated: framed with 1.9 inch OD pipe, Type I at 2.72 pound or

Type II at 2.13 pound, with all corners welded and with fabric as specified, bracing, hinges and latches

a. Provide concrete pad at all double gate plunger-bar type latches.

8. Extension arms: 45 degree type for three strings of barbed wire, inclined outward from the area enclosed by the fence.

9. Braces: 1.66 inch OD pipe, Type I at 2.27 pound or Type II at 1.86 pound, spaced midway between the top rail and the ground, and extending form each terminal (end, corner, and pull) post and each gate post to the first line post or posts, as applicable.

10. Fittings: manufacturer's standard type malleable iron or steel, types as required for the complete satisfactory assembly of the fence.

PART 3 EXECUTION

3.1 INSTALLATION

A. Install fencing at the locations and of the arrangements indicated, in accordance with the manufacturer's standard recommendations, and as specified below.

B. Fencing shall conform to the general contour of the ground, with the bottom a uniform distance above the ground. The finished fencing shall be plumb, taut, true to line and ground contour, and complete in every detail.

C. Install posts on 10 foot maximum uniform centers, with 36 inch setting depth in underground concrete bases. Minimum diameter of concrete bases shall be: 9 inches for line posts; 12 inches for terminal posts; and 12 inches larger than post diameter for gate posts. Tops of concrete bases shall be flush with the concrete slab. Allow all concrete to cure for at least three days before installing fabric. All concrete shall have at least 3,000 psi compressive strength in 28 days.

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D. Before installing fabric, install all top rails, braces, truss rods, and other fittings. Install fabric taut, stretching it with suitable equipment which will not damage the fabric or posts.

E. Attach fabric to end, corner, pull, and gate posts with 1/4 by 3/4 inch tension bars through the end pickets of the fabric, and bands around the posts on 14 inch maximum centers.

F. Gates: Install each gate plumb, and make all adjustments required to obtain free and easy operation, without binding and unnecessary rattling, or swaying.

G. Install barbed wire taut, free from kinks, and attach it securely to extension arms and to end and corner posts.

END OF SECTION