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24. Force Main Design. - wsscwater.com

Part Two, Section 24. Force main design SEWER design GUIDELINES 2008 24. Force main design . a. Alignment - Horizontal and Vertical 1) Locate the Force main as if it is a water pipeline, see requirements under Part One (Water), with the following exceptions. a) When adjacent or parallel to a water pipeline, design the Force main in accordance with the requirements of the sewer pipelines, see Part Three, Section 3 (Pipeline Crossings and Clearances). Do not provide concrete encasement of the Force main . b) When the Force main alignment is running parallel to a sewer pipeline, see the following requirements: (1) Where the sewer is existing, design the Force main in accordance with the requirements of relief sewers under Part Two, Section 23 (Relief Sewer design ) and Part Three, Section 3 (Pipeline Crossings and Clearances). (2) Where the sewer is not existing, see Part Three, Section 3 (Pipeline Crossings and Clearances).

Part Two, Section 24. Force Main Design SEWER DESIGN GUIDELINES 2008 S-24.5 e. Hydraulic Design of Force Mains. 1) Guidelines for hydraulic design of force main are as follows: a) The design of a sewage force main must be coordinated with the design of the wastewater pumping station. ...

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24. Force Main Design. - WSSC Water

www.wsscwater.com

b) AWWA C900 PVC. May be used for force mains in diameters 12-inch and smaller as an alternative to DIP if the PVC pipe meets the external load and internal pressure requirements, as stated in this section. (1) Pipe dimension ratio for AWWA C900 PVC. The use of PVC for force mains is limited by

  Pressure, Water, Pipe, C900, Wssc water, Wssc

Unregulated Contaminant Monitoring Rule - wsscwater.com

www.wsscwater.com

Unregulated Contaminant Monitoring Rule 4 Manganese 26 µg/Lb 0.4 300 Manganese 4.5 µg/Lb 0.4 300 NOTES a Water treatment plant finished water sample b µg/L = parts per billion (ppb). The equivalent of one minute in 2,000 years or one penny in $10 million

  Rules, Monitoring, Contaminant, Unregulated, Unregulated contaminant monitoring rule, Wsscwater

3. Pipeline Crossings and Clearances. - wsscwater.com

www.wsscwater.com

Part Three, Section 3. Pipeline Crossings and Clearances COMMON DESIGN GUIDELINES 2015 C-3.4 a) If both pipelines are 36-inch and smaller diameter, provide a minimum of twenty (20) feet

  Design, Clearance, Crossing, Pipeline, Wsscwater, Pipeline crossings and clearances

Three Part, Section 4. Buoyancy of Pipelines ... - WSSC Water

www.wsscwater.com

Three Part, Section 4. Buoyancy of Pipelines COMMON DESIGN GUIDELINES 2008 C-4.5 Where: Wt = resultant buoyant force of the submerged pipe, pounds per linear foot wI = average unit weight of inundated backfill, pounds per cubic foot Bc = outside pipe diameter, feet HI = depth of inundated backfill above top of pipe, feet HIm = minimum depth of inundated backfill required …

  Guidelines, Water, Wssc water, Wssc

15. Pipe Slope and Manhole Distance. - WSSC Water

www.wsscwater.com

see Sketch "T" and Part Two, Section 16 (Manhole Channel Design) or design a manhole drop connection at the manhole, see Part Two, Section 16 (Manhole Drop Connections). 2) If the slope cannot be reduced, specify AWWA C900 PVC pipe, see the Specifications for 12-inch and smaller sewer pipelines.

  Water, Channel, Wssc water, Wssc

27. Thrust Restraint Design for Buried Piping.

www.wsscwater.com

Design for Unbalanced Thrust for Buried Water Conduits, Charles A. Manganaro, see pages 705 to 716, Journal AWWA, June 1968. (b) Do not use a design concept based on bearing capacity. (c) For blocks in cohesive soils, evaluate the soil resistance in terms of short and long term

  Bearing, Thrust

PIPELINE DESIGN MANUAL 2017 - WSSC Water

www.wsscwater.com

Apr 19, 2017 · requirements, appurtenances, specifications, materials, hydraulics, etc. This manual is a design guideline that shall be followed and used in conjunction with the WSSC Standard Details for Construction and the WSSC General Conditions and Standard Specifications. It is

  Standards, Specification, Construction, Water, Pipeline, Standard specifications, Wssc water, Wssc

12. Allowable Joint Deflections. - WSSC Water

www.wsscwater.com

14-inch and over 0.83 feet 02°-24' (2.4°) 480 feet 3) For maximum joint deflections for full-length PVC pipe with push-on type joints on pipelines which are 12-inches and smaller in diameter, see Table "3.1". The maximum deflection angle in Table "3.1" is used for design and is based on seventy (70%) percent of the recommended

  Water, Wssc water, Wssc

17. Manhole Channel Design. - WSSC Water

www.wsscwater.com

crowns of the different diameter pipes. For sewer pipelines larger than 27-inch diameter, with 12-inch and smaller laterals entering the manhole, design the laterals by matching the invert to or above the crown of the larger pipe to prevent flow from the larger pipe entering the smaller pipe. Determine hydraulic losses to verify the design.

  Water, Hydraulic, Pipe, Losses, Wssc water, Wssc, Hydraulic losses

3. Pipeline Crossings and Clearances.

www.wsscwater.com

utilities and structures (manholes, inlets, vaults, poles, etc.). 2) Provide the following minimum separation when a water/sewer pipeline is parallel or adjacent to existing or proposed buildings or dwellings: ... Any other critical utility identified on a case by case basis such as electrical ductbanks, etc. ...

  Utility, Vault

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