863.04 Poly (Vinyl Chloride) (PVC) Plastic Pipe.
Pipe Diameter inches {mm} Minimum Wall Thickness inches {mm} Pipe Requirements < 4 {101.6} Sch. 40 ASTM A 53, Grade B 4 – 12{101.6 – 304.8} 0.188 {4.78} ASTM A 252, Grade 2 >12 – 24 {>304.8 – 609.6} 0.250 {6.35} ASTM A 252, Grade 2 >24 {609.6} 0.375 {9.525} ASTM A 252, Grade 2 All pipe shall be coated inside and out with at least one shop coat of an approved primer paint. In addition, the external surface shall be treated with one coat of asphaltum paint, meeting the requirements of Federal Specification TT- C-494B Type II, Compo sition G. Fusion -Bonded Epoxy Coating, meeting the requirements of AWWA C213, may be used as an alternative to the shop coat primer and asphaltum paint. Other approved protection material may be used with prior approval by the Department. Hydrostatic press ure test is not required for this pipe.
862.02 Encasement Spacers.
Spacers shall be stainless steel or as approved by the Engineer. The spacer shall be sized for the carrier pipe and encasement pipe used.
862.03 Encasement End Seals.
Encasement end seals shall be synthetic rubber with a stainless steel zipper or closer. The seal shall be secured to the encasement with a stainless steel band clip or thumbscrew clip with a polyethylene strip placed under each clip. Proper flexibility between the carrier pipe and the encasement pipe shall be provided.
862.04 Vent Pipes.
Vent pipes shall be 2 inch welded steel meeting the requirements of Section 862.01.
862.05 High Density Polyethylene (HDPE) Pipe.
HDPE pipe and bends 4 inches {101.6 mm} and smaller shall meet the requirements of ASTM D1248, ASTM D 3350 (PE 3408 cell classification 335434C), and ASTM F 714. The HDPE pipe shall have a minimum wall thickness of SDR 11. WATER PIPE, FIRE HYDRANTS, VALVES, AND APPURTENANCES
863.01 Ductile Iron Water Pipe.
Ductile Iron pipe shall meet the requirements of AWWA C151 with a minimum working pressure of 150 psi {1030 kPa}. The pipe shall have an inner cement mortar lining meeting AWWA C104 and an outer bituminous coating. The push- on joints shall meet the requirements of AWWA C111. Restrained joints shall meet the requirements of AWWA C110. Lock joint pipe shall meet the requirements of AWWA C151. The pipe length shall be a minimum of 18 feet {5.5 m}.
863.02 Ductile Iron Fittings.
Ductile Iron fittings shall meet the requirements of AWWA C110, AWWA C153, or AWWA C151 when approved by the Engineer. Fittings shall have an inner cement mortar lining meeting AWWA C104 and an outer bituminous coating. Fittings shall have a min imum pressure rating equal to the adjoining pipe installed. For fittings sizes 4 inch {100 mm} through 12 inch {300 mm}, the minimum pressure rating shall be 250 psi {1720 kPa}.
863.03 Copper Water Pipe.
Pipe and fittings shall meet the requirements of ASTM B88 Type K.
863.04 Poly (Vinyl Chloride) (PVC) Plastic Pipe.
Pipe sizes 4 inch {100 mm} to 12 inch {300 mm} shall meet the requirements of AWWA C900 Class 235, DR 18 or heavier. Pipe sizes 14 inch {350 mm} to 48 inch {1200 mm} shall me et the requirements of AWWA C905 Pressure Class 235, DR 18 or heavier. Pipe and fittings sizes smaller than 4 inch {100 mm} shall meet
863.05 Polyethylene (PE) Tu bing.
the requirements of PVC 1120, PVC 1220, or PVC 2120 with a minimum cell classification 12454- B for ASTM D2241, SDR 26 or heavier or ASTM 1785 Schedule 40, 80, or 120. Joints and gasket material shall be as recommended by the pipe manufacturer. Solvent welding of field joints shall only be allowed for pipes 1.5 inches {38 mm} in diameter and smaller.
863.05 Polyethylene (PE) Tubing.
Pipe and fittings 2 inches {50 mm} and smaller shall be made of PE3408 meeting the requirements of ASTM D 2239, minimum SIDR 7, ASTM D3350 and AWWA C901.
863.06 High Density Polyethylene(HDPE) Pipe.
HDPE pipe and bends shall meet the requirements o f ASTM D1248, ASTM D3350(PE 3408), and ASTM F714. The HDPE pipe shall have a minimum wall thickness determined by the pressure rating required for use.
863.07 Cross -Linked Polyethylene (PEX Type A) Pipe.
Pipe 2 inches {50 mm} and smaller shall meet the requirements of AWWA C 904, Standard Dimension Ratio (SDR) 9, and standard Copper Tube Sizes (CTS). Fittings shall meet the requirements of AWWA C800 and for brass compression sleeve fittings. The pipe shall only be used below ground.
863.08 Gate Valve.
Gate valves shall meet the requirements of AWWA C509. Gate valves shall have o- ring seals. Gate valves shall have a non -rising stem that opens counterclockwise with a 2 inch {50 mm} square nut. Gate valves shall have mechanical joints meeting the requirements of AWWA C -111. The disc shall be SBR coated and the valve body shall be fusion bonded epoxy inside and out. Valves shall be furnished complete with necessary gaskets, bolts, and nuts as needed for mechanical joint ends. Gate valves shall be selected from t he Utilities’ approved material/manufacturer list.
863.09 Butterfly Valve.
Butterfly valves shall be rubber seated and meet the requirements of AWWA C504. The valve body shall meet the requirements of ASTM A126, Class B or ASTM A48, Class 40. Butterfly val ves shall open counterclockwise with a 2 inch {50 mm} square nut. Butterfly valves shall have mechanical joints meeting the requirements of AWWA C -111. The disc shall meet the requirements of ASTM A536 or ASTM A48, Class
40.The rubber mating seat shall be stainless steel. All butterfly valves shall be provided with o -ring seals, nonadjustable stuffing boxes and shall be self -sealing or self -adjusting to allow for replacing without removing the valve or the valve shaft. Butterfly valves shall be selected fr om the Utilities’ approved material/manufacturer list.
863.10 Valve Boxes and Stem Extensions.
Valve boxes shall be cast iron and provided with all valves that are installed vertically. Valve boxes shall have a minimum diameter of 5 1/4 inches{130 mm}. B ox covers shall be marked "water". Valve boxes shall be selected from the Utilities’ approved material/manufacturer list. Valve stem extensions shall be provided with all valves that are greater than 3 feet {900 mm} below the adjacent ground surface. The extension stem shall be of the same size as the valve stem and shall be provided with a stem guide.
863.11 Tapping Valve & Sleeve.
Tapping valves shall meet the requirements for gate valves as described in section 863.07. Tapping sleeves shall be ductile iron, cement mortar lined meeting the requirements of AWWA C104, and have a bituminous exterior coat.
863.12 Air Release Valve.
Air release valves shall be as detailed by project plans and specifications.
863.13 Corporation Stop and Curb Stop.
Corporation stops shall meet the requirements of AWWA C800. Curb stops shall have full port openings. Corporation stops and curb stops shall have compression type connections and shall be selected from the Utilities’ approved material/manufacturer list.
863.14 Fire Hydrant.
Fire hydrants shall meet the requirements of AWWA C502. Fire hydrant shall have a minimum working pressure of 175 psig {1200 kPa} and a minimum test pressure of 300 psig {2070 kPa}. Fire hydrants
864.01 Rail Elements.
shall have two each 2.5 inch {63 mm} nozzles and on e each 4.5 inch {114 mm} pumper nozzle. Fire hydrants shall have a 1.5 inch pentagon, one -piece operating nut that opens left. The fire hydrant main valve shall close with pressure. Fire hydrants shall have a 6 inch {150 mm} mechanical joint inlet. All operating parts, including the drain ring, operating nut, hold- down nut, upper valve plate, seat ring, drain lever, and nozzles shall be made of bronze. The bonnet assembly shall provide for an oil or grease reservoir and lubricating system that lubricant s all stem threads and bearing surfaces each time the hydrant is operated. The reservoir shall be completely sealed from the waterway and all external contaminants by two each o -ring stem seals. Fire hydrants shall be factory pre -filled with a lubricant suitable for a working temperature range of – 60 °F {-51.4 °C} to +150 ° F {65.6 ° C}. Fire hydrant shall be painted and seal coated as required by the project plans and specifications.
863.15 Flush Hydrant.
Flush Hydrants shall be the type shown on the plans or designated by the Engineer.
863.16 Line Stop.
A line stop to stop the flow of water in a portion of the main without interruption of water service shall be manufactured and installed by either T.D. Williamson, Inc., Severn Trent(Hydra -Stop), IPSCO, or an Engineer approved equal. The line stop and appurtenances shall be pressure rated for a minimum of 150 psi to safely cease the flow of water in the existing water main. The line stop shall be designed for the water main mat erial shown on the plans and field verified prior to installation. The thrust restraint shall be as detailed in the project plans. The Contractor performing the installation of the line stop shall have successful experience in water main tapping and line stopping. SECTION 864 GUARDRAIL AND BARRIER RAIL MATERIALS
864.01 Rail Elements.
a.Beam Plate Guardrail .
1.Steel . Steel rail elements and accessories shall conform to the requirements given in AASHTO M 180. Zinc coating shall be Type II, 4.00 ounces per square foot {1220 g/m²}, minimum triple spot test. Chemical composition for Type 4 beams shall conform to one of the following based on ladle analysis. CHEMICAL COMPOSITION TYPE 4 BEAMS Blend C Mn P S Si Cu Cr Ni Zr No. 1 0-12 Max. 0.20 to 0.50 0.07 to 0.15 0.05 Max. 0.25 to 0.75 0.25 to 0.55 0.30 to 1.25 0.65 Max. - - - No. 2 Shall conform to the requirements of ASTM A 606 for Type 4, high strength - low alloy - hot rolled sheet or strip. Members or accessories for beams meeting ASTM A 606 which require welding shall meet the requirements of ASTM A 588 for Grade A or B Material . In addition, for Type 4 beams after fabrication, all steel shall be blast cleaned or pickled to remove all mill scale. Blast cleaning shall conform to Steel Structures Painting Council Surface Preparation Specification No. 10 Near -White Metal Blast Clea ning (SSPC -SP10). All pickling acid shall be thoroughly rinsed off. All fabricated steel parts shall be handled with care to avoid gouges, scratches, and dents. The steel shall be kept clean of all foreign material, such as paint, grease, oil, chalk marks, crayon marks, concrete spatter, or other deleterious substances. Natural oxidation of the steel will not be considered foreign material. Storage in transit, in open cars and trucks, for an extended period will not be permitted. Steel parts stored outside in yards or at job- sites shall be positioned to allow free drainage and air circulation.
2.Aluminum . Aluminum alloy rain element shall be aluminum alloy 2023 T -3 conforming to the requirements of ASTM B 209. The rail shall be of such thickness as will mee t strength requirements of AASHTO M 180 for the strength class designated; however, in no case will the tensile strength of the full size
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 798–799 of 934.