643Fence

643.1General Description

This work includes constructing fence and gates according to these specifications where shown on the plans or designated by the Engineer. Ensure that this work conforms with the lines and grades shown on the plans. The fence types covered by these specifications are: • Chain-link • Woven wire • Barbed wire • Field fence • Barrier fence 643.1.01 Definitions General Provisions 101 through 150. 643.1.02 Related References

General Provisions 101 through 150. 643.1.03 Submittals Furnish the Engineer, in duplicate, a materials certification for temporary barrier fence physical properties according to Section 106 of the specifications.

643.2Materials

Ensure that materials conform to the following specifications: Material Section Concrete (Class A or B) 500 Wood Fence Posts and Bracing 862.2.01 Metal Caps 862.2.01.A.5. Preservative Treatment 863.2.01 Chain Link Fence (Fabric, Posts, Gates, and Accessories) 894.2.01 Woven Wire Fence (Fabric, Gates, and Posts) 894.2.02 Barbed Wire (including Posts) 894.2.03 Ground Rods and Connections 894.2.04 1140 1140 1140 1140 1140

Material Section Field Fence 894.2.05

Use the fencing material shown in Subsection 894.2.01. Ensure that posts, fabric, wire, appurtenances, and gates when required, are the same or matching type for each project, unless otherwise directed.

Use wood or steel post types as shown on the plans. Ensure that each project fence and post is the same type and shape, unless otherwise specified.

Maximum Mesh Opening Size 1 ¾ in. (45 mm) x 2 1/8 in. (54 mm) Roll Width 4 ft. (1.2 m) Color International Orange Maximum Porosity 80% Minimum Yield Strength (MD) 750 lb./ft. (11 kN/m) 643.2.01 Delivery, Storage, and Handling Do not store barbed-wire, woven-wire fence fabric, steel posts, hardware, and other materials on the ground. Place them in floored buildings, on platforms, or on wooden timbers or poles. Ensure that the floors, platforms, or props are high enough to prevent the wire and steel posts from touching ground or surface water. Wire or steel posts that are damaged from improper storage between fabrication and final erection will be rejected.

643.3Construction Requirements

643.3.01 Personnel General Provisions 101 through 150. 643.3.02 Equipment General Provisions 101 through 150. 643.3.03 Preparation General Provisions 101 through 150. 643.3.04 Fabrication General Provisions 101 through 150. 643.3.05 Construction Construct fence (except for field fence) within the right-of-way line. Do not allow the permanent installation to encroach on adjacent property. 1141 1141 1141 1141 1141

Follow these general requirements when placing the fence:

(25 mm) from the ground surface, but no more than 6 in. (150 mm).

Stretch multiple strands of barbed wire on the posts with 6 in. (150 mm) or less vertical clearances between strands of barbed wire.

in the new and existing fences to the posts.

fasten new fencing to end posts to permit livestock to pass through or under the structure freely, unless otherwise directed or shown on the Plans.

Follow these steps to install posts and appurtenances:

2-3/8 in. (60 mm) tube-type line posts for all fence types at least 3 ft. (900 mm) deep instead of using concrete encasement.

according to this subsection.

Class A or B concrete.

3 (0.5 m3 ) or less. Firmly brace the posts and hold them in place until the concrete has set.

For chain-link fence, straight line 500 ft. (150 m) For chain-link fence, curved line 250 ft. *(75 m) For woven-wire fabric 330 ft. (100 m) Field fence 330 ft. (100 m)

greater stability when necessary or as directed by the Engineer.

the plans.

metal posts according to the manufacturer’s recommendations.

1142 1142 1142 1142 1142

Install fence fabric or barbed wire when posts are set and braced, except when posts are set in concrete footings. When posts are set in concrete footings, delay installing the fabric or wire to allow the concrete to cure at least 5 days. When barbed wire fence is required, install three strands unless otherwise indicated on the plans.

Ensure that the gate assemblies are the length, height, and type designated on the Plans. Install the gate to provide a 180-degree swing. Weld the gate frames into units. Properly coat them after welding according to Section 894. Stretch fabric that matches the fence fabric taut over the gate frame. Provide gate assemblies with a positive-type locking device, padlock, and keys.

Wherever a power line carrying more than 600 volts passes over the fence, install a ground rod.

soil conditions will permit.

ground rod.

To trespass on private property outside the right-of-way or easements provided on the plans, obtain permission from the property owner for the intrusion. Use field fence for replacing fence outside the right-of-way or for providing temporary fence at locations shown on the plans or directed by the Engineer. Field fence is considered permanent unless it is specified as temporary.

Construct the fence to prevent livestock from escaping. Schedule fence removal and new fence installation to provide continuous security of the livestock. If security is not maintained and animals or property are damaged or lost, compensate the owner or make repairs at no cost to the Department. Replace or repair damaged existing fences.

Install the barrier fence according to the manufacturer's instruction. Use suitable strength metal, wood, or composite posts. Ensure the posts are long enough to be embedded to a depth that will provide stability to the fence have sufficient rigidity to hold the fence in a vertical position. The maximum post spacing is 10 ft. (3 m). Attach the fence to the posts with nails, staples, or wire ties spaced every 6 in. (150 mm) along the posts. Do not allow the method of attachment to create a safety hazard. At the completion of the project, or as directed by the Engineer, remove all barrier fence including posts and incidentals. 643.3.06 Quality Acceptance Repair rusted wire or posts before Final Acceptance or remove and replace with new material at the Contractor’s expense. Do not replace the fence if rusting occurs as a result of ponding water after the fence is erected. 643.3.07 Contractor Warranty and Maintenance General Provisions 101 through 150. 1143 1143 1143 1143 1143

643.4Measurement

Fence will be measured by the linear foot (meter) along the bottom of the fence, from the outside of end posts for each continuous run of fence. Measurement for payment includes posts, post assemblies, pull, corner, and gate posts, and gates unless gates are a separate Pay Item. When gates are paid for separately, they will be measured as complete Units of the type and size specified and installed. Temporary barrier fence will be measured by the linear foot (meter) along the bottom of the fence outside of end posts for each continuous run of fence. 643.4.01 Limits General Provisions 101 through 150.

643.5Payment

The accepted quantities of fence, measured as indicated above, will be paid for at the Contract Unit Price per linear foot (meter) of the specified type and height of fence. Payment includes gates unless the gates are paid for separately. The accepted quantity of gates, when listed as a separate Pay Item, will be paid for at the Contract Unit Price for each type and size of gate specified, complete in place, including posts and hardware, locks, keys, and other incidentals shown on the plans. Payment includes clearing and grubbing, grading, excavating, backfilling, disposing of surplus materials, and furnishing materials and incidentals such as molten lead or cement filler on concrete walls, slabs, or solid rock to complete the work. When field fencing is temporary, payment includes removal. Materials salvaged from temporary field fence remain the Contractor’s property. The accepted quantities of temporary barrier fence measured as indicated above will be paid for at the Contract unit price per linear foot (meter) of fence. Payment to complete the item includes all necessary clearing, installation of fence including hardware and other incidentals, and removal of the fence. The barrier fence, posts, and all incidentals become the property of the Contractor upon removal. Payment will be made under: Item No. 643 Field fence, woven wire Per linear foot (meter) Item No. 643 Field fence, barbed wire (strand) Per linear foot (meter) Item No. 643 Field fence, special design Per linear foot (meter) Item No. 643 Chain-link fence (type___), (height___) in. (mm), wire gauge___ Per linear foot (meter) Item No. 643 Chain-link fence (type___), (height___) in. (mm), wire gauge___, with extension arms and barbed wire Per linear foot (meter)

Item No. 643 Woven-wire fence Per linear foot (meter)

Item No. 643 Barbed-wire fence (strand) Per linear foot (meter)

Item No. 643 Gate (fence type,___) (size___) Per each

Item No. 643 Barrier fence, height,____ ft. (m) Per linear foot (meter)

643.5.01 Adjustments

General Provisions 101 through 150.. 1144 1144 1144 1144 1144