FENCES 624. 02 587 623.06 BASIS OF PAYMENT The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.BEAM GUARDRAIL W-BEAM SINGLE Linear Foot [Meter]
B.BEAM GUARDRAIL W-BEAM DOUBLE Linear Foot [Meter]
C.BEAM GUARDRAIL THRIE -BEAM SINGLE Linear Foot [Meter]
D.BEAM GUARDRAIL THRIE -BEAM DOUBLE Linear Foot [Meter]
E.BEAM GUARDRAIL TRANSITION SECTION Each
F.GUARDRAIL ANCHOR Each
G.GUARDRAIL END TREATMENT Each
H.BLOCKOUTS Linear Foot [Meter]
I.GUARDRAIL BRIDGE CONNECTION Each
624.01 Description
This work consists of constructing fence and gates. The Department defines the following styles of fence: Fence, Style WWF (Woven Wire Fence), Fence, Style SWF (Strand Wire Fence), Fence, Style CLF (Chain Link Fence), Fence, Style GDF (Glare Deflector Fence), and Fence, Metal Panel.
624.02 Materials
Provide materials in accordance with the following section and subsections: Material: Section or Subsection: Portland Cement Concre te Class A 701 Requirements for Paint Systems 730.02 Fence, Style WWF 732.06 Fence, Style SWF 732.06 Fence, Style CLF 732.07 Fence, Style GDF 732.08
624.04 Fences
588 Provide posts, hardware, and fittings in accordance with Section 732, "Materials for Guard Rail, Guide Posts, Bridge Rail, Miscellaneous Railing, and Fences ” if not shown on the Plans. Provide the same kind of material for posts, hardware, and fittings throughout the project, unless otherwise approved in writing by the Resident Engineer. Provide reinforcing steel in accordance with Section 511, "Reinforcing Ste el for Structures."
624.03 Equipment — Vacant
624.04 Construction Methods
A.General Perform clearing and grubbing to construct the fence in accordance with Section 201, "Clearing and Grubbing." Install the style, type, and class of fence as shown on the Plans. Install fence gates at locations shown on the Plans or as directed by the Resident Engineer. Upon receipt of the Notice to Proceed, existing fencing on the right -of-way becomes the responsibility of the Contractor. At inte rsections with existing fences or at locations with required fencing breaks, make post spacing adjustments. Ensure cross fencing connections include an end post placed perpendicular to the right -of-way fence or at the angle of the cross fence. Maintain co nstructed fences and gates.
1.Concrete If the Plans show embedding posts, braces, or anchors in concrete, install temporary guys or braces to hold the posts in position until the concrete sets. Do not install materials on posts, or strain guys and braci ng, until 5 days after placement of the concrete, unless otherwise approved by the Resident Engineer.
2.Driving Option As an option to setting fence posts in concrete footings or placing in tamped earthen holes, the Resident Engineer may approve driven line posts. For the driving option, protect the tops of wooden line posts and ensure the posts are sharpened by the supplier before treating with preservative. The Resident Engineer will reject wood posts with split or damaged tops. Do not field sharpen or taper dress the post tips. Use a fitted impact head for metal posts to minimize post deformation or damage to the galvanized or painted finish. After driving the metal posts, clean damaged tops and paint with a zinc-rich paint. The Resident Engineer wi ll reject metal posts with severely deformed or poorly painted tops. FENCES 624.04 589 (3) Offset Control Perform adequate plumb and offset (alignment) control to ensure a smooth profile and alignment. In shallow depressions, use longer posts and barbed wire fans to mainta in a smooth top-of-fence profile. If necessary, use strengthened fence construction and movable water gates for installations over deep ravines. Do not fill swales or ravines to facilitate fence construction. Maintain the existing drainage.
4.Installat ions in Rock For driven installations using mechanical or pneumatic equipment, the Department defines refusal as 1 in [25 mm] or less entry per minute of driving with a 60 lb [27 kg] hammer delivering at least 60 blows per minute. For installations in earth and in rock softer than medium sandstone, adhere to the following criteria: Ensure the driven posts reach the minimum embedment as shown on the Plans, or reach refusal. For refusal encountered at 24 in [0.6 m] or deeper, keep the post in place and to p cut to the profile control. For refusal encountered at depths less than 24 in [0.6 m], pull the post and install a concrete footing to the dimensions shown on the Plans for earth installations. Adhere to the following criteria for installations in surfac e-level, medium or harder sandstone: Drill a hole of the diameter and depth for footings in rock for the type of post shown on the Plans. Insert, plumb, and brace the post. Fill the hole with lean grout (thin hydraulic cement). For installations in medium to hard rock under a layer of earth, adhere to the following criteria: If rock is encountered at any depth less than the minimum driven embedment (as shown on the Plans), auger the earth. Consider as a regular concrete -embedded earth footing. Drill a hole of the diameter for footings in rock for the type of post shown on the Plans to a depth yielding the total minimum earth embedment, or the minimum rock embedment, whichever occurs first. Fill half of the rock hole with an approved type of lean grout and in sert, plumb, and brace the post. Fill the remainder of the rock hole with lean grout. Place concrete for the earth footing above the grouted rock hole. Provide driven posts in earth at least 24 in [0.6 m] where refusal is reached, or the minimum earth embe dment as shown on the Plans. The Resident Engineer will require the minimum rock embedment unless the total minimum earth embedment is reached first. With these conditions met, the Department will allow top cutting the post to profile control.
624.04 Fences
590 (5) Aligni ng Posts Set the tops of posts to the grade and alignment shown on the Plans. Cut only the post tops indicated in the plans, specified in this section, or approved by the Resident Engineer. After cutting wood posts, paint the tops with a preservation solut ion. Do not flame cut. Clean and paint cut areas on metal posts with a single coat of zinc -rich paint. Attach wire or fencing of the required size and type to the posts and braces as shown on the Plans. Install wire to the elevations shown on the Plans and stretch wire taut.
B.Fence, Style WWF (Woven Wire Fence) This style of fence consists of woven wire fabric with smooth, barbless, or barbed wire strands on a steel post system, wood post system, or both.
1.Alignment Install WWF to the general alignm ent, angles, corners and attachment types at culverts as shown on the Plans. In general, construct fences on the permanent right -of-way line. To construct the right -of-way fence, clear the work area of obstructions, level the ground, and remove minor irregularities.
2.Setting Posts Provide line posts of the size shown on the Plans and install on the permanent right -of-way line, to a line shown on the Plans, or on a line approved by the Resident Engineer, and in a true line on the property owner’s side. Embed posts in the ground to the depth shown on the Plans, tamping and firmly setting. Space line posts as shown on the Plans. Set additional posts at abrupt changes in grade, alignment, location, or at locations directed by the Resident Engineer. For s mall depressions, provide extra -length posts (fan posts) if not practical for the fence to closely follow the contour of the ground. At these locations, close the space below the bottom of the fence fabric with wire, stretched taut between posts, either o n horizontal lines or fanned at no greater than 6 in [150 mm] spacing, as shown on the Plans or as approved by the Resident Engineer. Stretch the wires taut, and fasten to the posts to prevent vertical movement of the wires. The Department will allow pour ing concrete for posts footings without forming if the excavation is stable and does not cave or slide. Form footings if directed by the Resident Engineer.
3.Placing Fencing Fasten barbed wire, barbless wire, or smooth wire to all fan, end, corner, gate or stretcher posts, and to line posts as shown on the Plans. Use tools designed for the purpose in accordance with the manufacturer’s recommendations. Apply the tension for stretching with mechanical fence stretchers or single -wire stretchers designed f or the purpose. Stretch strands taut to a tensile force of 300 lb [136 kg] as shown on the Plans, or to a tensile force recommended by the manufacturer. FENCES 624.04 591 Splice strand wire and wire fabric using a mechanical device of a type approved by the Resident Engin eer or make a wire splice by carrying the ends of wires 2 in [50 mm] past the splicing tools and wrap them around both wires backward from the tool for at least five turns. Attach wire to the private property side of the fence posts; on curves, place wire -fabric on the side of the post that will maintain the wire in a taut condition. Stretch woven wire fabric uniformly tight with an approved mechanical tensioning device conforming to its location on the posts as shown on the Plans. Place stays parallel, s traight, and uniformly spaced, as shown on the Plans. Staple each woven fabric wire and strand wire to wood posts or fasten with approved fittings to steel posts. Cut or splice woven wire at stretcher or wood posts to prevent buckling or undue stretching . Build attachment assemblies as shown on the Plans. For attachments to culvert or bridge end walls, drill the holes with a drill of the same size as the expansion device. Do not chip or break the concrete.
C.Fence, Style SWF (Strand Wire Fence) This s tyle of fence consists of smooth, barbless, or barbed wire strands on a steel post system, wood post system, or both. Construct Strand Wire Fence (SWF) in the same manner as WWF, in accordance with Subsection 624.04. B, "Fence, Style WWF (Woven Wire Fence)." Ensure the SWF has the type and number of strands of wire as shown on the Plans or as approved by the Resident Engineer. Install the fence on the permanent right -of-way line.
D.Fence, Style CLF (Chain Link Fence) This style of fence consists of chain link fabric fencing on a galvanized steel or aluminum alloy post system with or without barbed wire, smooth tension wire, or climb barrier systems.
1.Alignment Align CLF in accordance with Subsection 624.04.A, “General,” and Subsection 624.04.B(1), “Alignment.”
2.Setting Posts and Placing Fencing Perform alternate line post driving in accordance with Subsection 624.04.A, "General." Dig post holes to the minimum size and spacing shown on the Plans. Set posts plumb, centered in the hole, and to the lines shown on the Plans. Place posts in the concrete before the initial set. Ensure the post s are puddled and supported plumb until the concrete is fully set. Allow concrete to cure at least 5 days before stretching wire on the posts. Set post braces before placing wire. Attach wire to the private property side of the fence posts; on curves, pl ace wire on the side of the post that will maintain the wire in a taut condition. Stretch the wire slightly above the tension recommended by the manufacturer to address the effects of seasonal temperatures, and allow the wire to slack when the mechanical pullers are released. Attach pullers to the full width of the wire and make ties in at least seven locations on each post before releasing the wire. The Contractor may pull wire from both directions and joint by inserting one picket. Place smooth tensio n and barbed wire after placing the proper size of fabric.
624.05 Fences
592 (3) Concrete Wall for Fence Across ravines, where it would not be practical to set posts and follow the ground line with the fence, set posts in a concrete wall as shown on the Plans and at locatio ns directed by the Resident Engineer. If constructing a wall across a dry wash or periodically wet ravine, provide drainage. The Department will allow a partial wall on each bank with a water gate or fan in the center, or culverts through a solid wall.
E.Fence, Style GDF (Glare Deflector Fence) This style of fence consists of a mesh fence on ground -embedded posts, guardrail posts, parapet wall, or concrete median barrier.
1.Alignment In general, construct GDF in the median, between opposing lanes of t raffic, as shown on the Plans.
2.Setting Post and Placing Fencing Set posts and place fencing in accordance with Subsection 624.04.D ( 2), “Setting Posts and Placing Fencing.” For fence mounted on guardrail, bolt the fence post to the guardrail post using bolts as shown on the Plans. For fence mounted on a parapet wall or median barrier, cast or drill holes in the wall and fit them with pipe sleeves as shown on the Plans. The Department will allow threaded pipe f langes firmly attached to the top surface of the barrier wall as an alternate attachment method. Space terminal posts at intervals no greater than 100 ft [30 m], or as shown on the Plans. Truss diagonal braces from the brace end of the line post to the te rminal post, and fasten with a brace band. On curves, place the wire fabric on the side of the post that will maintain the wire in a taut condition. Install glare deflector fence fabric as shown on the Plans, and fasten to the line posts with wire ties a t 14 in [350 mm] intervals and to the top and bottom tension wire with wire ties or hog rings at intervals no greater than 12 in [300 mm]. Tighten the chain link glare deflector fence to provide a smooth, uniform appearance. Install stretcher bar -bands a t intervals no greater than 11 in [280 mm].
624.05 Methods of Measureme Nt
The Resident Engineer will measure the length of each continuous run of fence along the ground line of the fence from outside to outside of end posts. The Resident Engineer will not include the length of connections to cross fences in the measurement of fences. The Resident Engineer will measure gates as complete units of the size, type, and class required by the Contract. REMOVAL AND STORAGE OR RECONSTRUCTION OF FENCING AND GUARDRAIL 625.02 593 624.06 BASIS OF PAYMENT The Department will pay for each p ay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.FENCE, STYLE WWF Linear Foot [Meter]
B.GATE, STYLE WWF Each
C.FENCE, STYLE SWF Linear Foot [Meter]
D.GATE, GALVANIZED STEEL Each
E.FENCE, STYLE CLF Linear Foot [Meter]
F.GATE, STYLE CLF Each
G.FENCE, STYLE GDF Linear Foot [Meter] Include the cost of connections to cross fences to be included in the contract unit price for the relevant fence pay item. The Department will pay for the cost of Class A concrete and reinforcing steel used in the construction of concrete wall for fence, if required by the Contract, in accordance with Section 509, "Structural Concrete," and Section 511, "Reinforcing Steel for Structures." SECTION 625 REMOVAL AND STORAGE OR RECONSTRUCTION OF FENCING AND GUARDRAIL
625.01 Description
This work consists of removing and storing, or reconstructing, fencing and guardrail.
625.02 Materials
Provide salvaged materials in good condition from the existing installation for reconstruction. Replace other materials. Provide paint in accordance with Subsection 730.02, “Requirements for Paint Systems.” Unless otherwise required by the Contract, provide aluminum paint for refurbishing. Provide zinc -rich paint in accordance with Subsection 730.02, “Requirements for Paint Systems.”
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 601–606 of 935.