Military Specification may need to be specified.
See referenced specification for types, grades, and
options available.
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ASTM F 883, with chain.
PART 3
EXECUTION
3.1
SITE PREPARATION
3.1.1
Clearing and Grading
Clear fence line of trees, brush, and other obstacles to install fencing.
Establish a graded, compacted fence line prior to fencing installation.
Compact fill used to establish fence line.
3.1.2
Excavation
Excavate to dimensions indicated for concrete-embedded items, except in
bedrock. If bedrock is encountered, continue excavation to depth indicated
or 450 mm 18 inches into bedrock, whichever is less, with a diameter in
bedrock a minimum of 50 mm 2 inches larger than outside diameter of post.
Clear post holes of loose material. Dispose of waste material [outside
limits of station] [on station, as directed].
3.2
FENCE INSTALLATION
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NOTE: Certain security applications require
conformance to an applicable OPNAVINST. Use
bracketed sentences as required by the applicable
OPNAVINST.
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Install fence on prepared surfaces to line and grade indicated. [Secure
fastening and hinge hardware in place to fence framework by peening or
welding. Allow for proper operation of components. Coat peened or welded
areas with a repair coating matching original coating.] Install fence in
accordance with fence manufacturer's written installation instructions
except as modified herein.
3.2.1
Post Spacing
Provide line posts spaced equidistantly apart, not exceeding 3 m 10 feet on
center. Provide gate posts spaced as necessary for size of gate openings.
Do not exceed 152 m 500 feet on straight runs between braced posts.
Provide corner or pull posts, with bracing in both directions, for changes
in direction of 0.26 rad 15 degrees or more, or for abrupt changes in
grade. Provide drawings showing location of gate, corner, end, and pull
posts.
3.2.2
Post Setting
Set posts plumb. Allow concrete [and grout] to cure a minimum of 72 hours
before performing other work on posts.
SECTION 02821N
Page 12
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