514-1 Description.
Install a filter fabric.
514-2 Material.
Meet the filter fabric requirements as specified in Section 985.
514-3 Construction Methods.
514-3.1 General: Place the filter fabric ( fabric) in the manner and locations as shown in
the Plans, in accordance with the manufacturer’s directions, and as specified in these Specifications. Place the fabric on areas with a uniform slope that are reasonably smooth, free from mounds , windrows, and any d ebris or projections which might damage the fabric. Loosely lay the material. Do not stretch the material. Replace or repair any fabric damaged or displaced before or during placement of overlying layers to the satisfaction of the Engineer and at no expe nse to the Department. When overlapping is necessary, the Contractor may sew the seams to reduce overlaps as specified in 985 -3. Schedule work so that covering the fabric with the specified material does not exceed the manufacturer ’s recommendations fo r exposure to ultraviolet light or five days, whichever is less. If the Engineer determines the exposure time was exceeded, the Contractor shall replace the fabric at no expense to the Department.
514-3.2 Subsurface Drainage: When indicated in the Plans, place the fabric with the
long dimension parallel to the trench. Place the fabric to provide a minimum 12 inch overlap for each joint. Do not drop the filter material from heights greater than 3 feet.
514-3.3 Stabilization and Reinforcement: Overlap adjac ent strips of fabric a minimum
of 36 inches.
514-3.4 Riprap Filter: Overlap adjacent strips of fabric a minimum of 24 inches, and
anchor them with securing pins (as recommended by the manufacturer) inserted through both strips of fabric along a line throu gh the midpoint of the overlap and to the extent necessary to prevent displacement of the fabric. Place the fabric so that the upstream (upper) strip of fabric overlaps the downstream (lower) strip. Stagger vertical laps a minimum of 5 feet. Use full r olls of fabric whenever possible in order to reduce the number of vertical laps. Do not drop bedding stone or riprap from heights greater than 3 feet onto the fabric.
514-4 Basis of Payment.
No separate payment will be made for the work specified in thi s Section. The cost of furnishing, placing, and sewing or overlapping the fabric will be included in the Contract price for the items to which it is incidental . FY 2023-24 Return to Table of Contents SECTION 515 METAL PEDESTRIAN/BICYCLE RAILINGS, GUIDERAILS, AND HANDRAILS
515-1 Description.
Furnish and install metal pedestrian/bicycle railings, including bullet rails, guiderails and handrails in accordance with the Plans and Standard Plans . Obtain rail components from producers currently on the Department’s Production Facility Listing. Producers seeking inclusion on the list shall meet the requirements of Section 105.
515-2 Materials.
Meet the following requirements: Concrete ................................ .............................. Section 346 Anchor Bolts, Rods, Nuts and Washers* ............Section 962 Adhesive Anchors** ................................ ...........Section 937 Aluminum ................................ ........................... Section 965 Bearing Pads ................................ ............................. 932-2.5 Epoxy Mortar** ................................ .................. Section 926 Steel................................ ................................ .....Section 962 *Do not use expansion anch ors. **Use products listed on the Department’s Approved Product List (APL).
515-3 Construction Requirements .
515-3.1 General: Space posts to clear obstacles without exceeding maximum post
spacing and maintain a uniform spacing with reasonable consistency. Place splices in approximately the same place within a railing section. Railings must be free of burrs and sharp edges and all plug welds ground smooth.
515-3.2 Welds: Nondestructive testing of welds is not required , unless otherwise shown
in the Plans.
515-3.2 1 Aluminum Railing: Welds must be in accordance with Section 965.
Filler material for seal welds, plug welds and bend splices may be ER4303.
515-3.2 2 Steel Railing: Meet the requirements of Section 962, except weld
connections m ust be in accordance with AWS D1.1, Structural Welding Code, using E70XX weld material, unless otherwise shown in the Plans.
515-3.3 Coatings:
515-3.3 1 Aluminum Railing: Coating is not required, unless otherwise shown in
the Plans. Finished product mus t have a smooth uniform appearance. When a colored coating is required, use a fluoropolymer based powder coating system complying with American Architectural Manufacturers Association (AAMA) Specification No. 2605.
515-3.3 2 Steel Railing: Components must be hot-dip galvaniz ed after fabrication
in accordance with Section 962, unless otherwise shown in the Plans . When a colored coating is required, meet the requirements of 649 -4. FY 2023-24 Return to Table of Contents