Standard Details what are standard details? "Standard Details" illustrate items of work that are commonly required during the construction of water and wastewater utilities. The details are compiled by the Montgomery Water Works Engineering Department and are intended for use in the preparation of construction contract documents. The specific requirements as outlined are applicable only to Montgomery Water Works and Sanitary Sewer Board (MWWSSB) projects. Requirements of other utilities and/or municipalities may differ. These details, and the ideas and design incorporated herein, are the property of the MWWSSB and are not to be used, in whole or in part, for any other project without the permission of the MWWSSB. NOTE: To download the TIF files, please click once with your right mouse button on the TIF image you wish to download and select "Save Target As..." from the menu. You will be prompted to indicate where you would like the file to be saved. Please note that TIF files can be rather large and may take a few moments to download. NOTE: Type "M" is Miscellaneous; Type "W" is Water Distribution; Type "S" is Sanitary Sewer. Type No. Description Date Posted PDF TIF M 100 Pipe Bedding Requirements 02-May-14 451 K 3 M M 105 Trench Backfill Above Pipe Zone 08-Jul-14 266 K 538 K M 110 Encasement with Stainless Steel Spacers 08-Apr-21 238 K 20 M M 115 Thrust Block Sizing Detail 05-Apr-05 143 K 396 K M 120 Reinforced Thrust Block Deadman 05-Apr-05 80 K 329 K M 125 Reinforced Thrust Block Deadman (Two Way Restraint) 05-Apr-05 84 K 331 K M 130 Typical Street Layout 05-Apr-05 84 K 236 K M 135 Bollard 05-Apr-05 77 K 302 K M 150 Standard Pier for DI Pipe 05-Apr-05 73 K 174 K M 165 Reinforced Thrust Block Deadman w/o Rods 08-Jul-14 250 K 508 K M 166 Cut-plug Thrust Block Deadman 20-Jul-18 208 K 368 K M 170 Vehicular Ditch Crossing 01-Feb-08 151 K 436 K M 175 All Weather Access Road 01-Feb-08 105 K 280 K W 200 Locked Tee Fire Hydrant Set 08-Jul-14 414 K 783 K W 205 Tapping Sleeve and Valve Fire Hydrant Set 08-Jul-14 449 K 852 K W 206 Class Pipe Tapping Sleeve and Valve Fire Hydrant Set 08-Jul-14 417 K 824 K W 210 Water Meter and Backflow Replacement 15-Apr-05 189 K 350 K W 211 1 1/2" - 2" Backflow Placement 02-May-14 260 K 3 M W 212 Builder's Water Service (TYP.) 02-May-14 270 K 3 M W 216 Tapped Tee - Typical 20-Jul-18 170 K 507 K W 220 Large Meter Set 20-Jul-18 213 K 535 K W 225 Large Double Check Backflow Vault 15-Apr-05 236 K 380 K W 226 Large Double Check Backflow Vault (without Detector Check) 15-Apr-05 227 K 375 K W 227 Large Double Check Backflow Vault with Siamese Connection & Detector Check 15-Apr-05 318 K 2 M W 228 Large Double Check Backflow Vault with Siamese Connection No Detector Check 15-Apr-05 305 K 1 M W 230 Fire Model Meter Set-Up 01-Feb-08 191 K 581 K W 235 RPBA Installation Detail (3/4" - 2") 15-Apr-05 324 K 392 K W 255 Air Release Valve <= 2" 15-Apr-05 104 K 346 K W 260 Air Release Valve > 4" 15-Apr-05 91 K 177 K W 270 Wedge Action Restraint Harness 15-Apr-05 122 K 370 K W 280 Large RPBA Set ( > 2") 15-Apr-05 204 K 157 K W 281 Large RPDA Set with Detector Assembly Greater than 2" 15-Apr-05 203 K 208 K W 290 Bevelled Gear Valve Pad 08-Jul-14 398 K 756 K W 295 Locating Wire & Warning Tape Layout 08-Jul-14 433 K 820 K S 300 Class I Precast Concrete Manhole 02-May-14 372 K 3 M S 301 Class II and III Precast Concrete Manhole 01-Jan-09 398 K 337 K S 302 Interior Drop Connection 02-May-14 381 K 3 M S 305 Manhole Base Section with PVC Drop Assembly 01-Feb-08 274 K 1 M S 310 Standard Sanitary Lateral 15-Apr-05 103 K 344 K S 315 Sanitary Sewer Lateral Abandonment 15-Apr-05 62 K 160 K S 340 Raised Manhole "Hinged" Frame and Cover 02-May-14 353 K 3 M S 370 Precast Concrete Grease Interceptor 07-Feb-07 306 K 1 M S 371 Grease Interceptor Sampling Well Alternative 07-Feb-07 338 K 2 M S 372 Small Precast Concrete Interceptor 02-May-14 400 K 3 M