Auburn University
Auburn University
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Auburn University

G30 Site Civil/Mechanical Utilities

  1. General

    1. The Alabama Department of Environmental Management has designated Auburn University as an operator of a regulated small municipal separate storm sewer system (MS4) for regulation under the Phase II Stormwater Program. The University is responsible for compliance with National Pollution Discharge Elimination System (NPDES) General Permit ALR040000. Insure that all work performed is designed and constructed in such a way as to comply with all requirements of this Regulation.

    2. Care is required in preparation of documents to assure no overlapping and no gaps between the work for the various contracts. Each contractor shall be required to perform excavation, trenching, and backfill for his installations.

    3. For consideration of building connections, infrastructure will stop at the project limits as coordinated with the Director of Maintenance & Operations with the exception of electrical and telecommunication service. Electrical service infrastructure will be considered to terminate at the transformer. Telecommunications infrastructure must be coordinated with the Office of Information Technology.

    4. Utility Service Plans: Plans shall be approved by Auburn University’s utility
      infrastructure consultants.

    5. Utility locations must be coordinated with the Facilities Division Utilities Department prior to performing field work. A minimum of twenty-four (24) hours prior notice is requested for utility locations.

    6. Buried Piping

      1. All buried piping shall be bedded in a minimum of 6” of sand and have a minimum of 12” of sand backfill above top of pipe.

      2. Provide 18”-24” clear between pipes in trenches.

    7. Standard details and specifications must be obtained through the Director of Maintenance & Operations and Auburn University’s utility infrastructure consultants.

  2. Material

    1. Hydrants: Provide 3 nozzles. Location shall be coordinated with Auburn University Fire Protection Engineer.

    2. Manholes:

      1. Pre-cast or cast-in-place type. No block or brick masonry.

      2. Provide eccentric type.

      3. Provide with integral cast-in ladder.

      4. Provide with water proof seals between sections

      5. Provide cast-in pulling irons in electrical and telecommunication manholes.

      6. Covers shall have cast identification markings of "STORM DRAIN",
        "SANITARY", "STEAM", "ELECTRICAL", TELEPHONE", etc. as appropriate.

      7. Provide hand troweled inlets and inverts.

    3. Site Sanitary Sewage Lines: Ductile iron or concrete (8’ sections minimum), No PVC or PVC composites.

    4. Meters: Auburn University provides all meters. Meter to be installed by contractor.

    5. Utility Boxes: Provide with traffic rated covers.

    6. Valves:

      1. Domestic and Chilled Water: Resilient seat gate valve with non-rising stem.

      2. Hot water: Gate valve, non-rising stem, Viton seals.

      3. Underground Hot Water Valves: Adams MAK-16

      4. Valves shall be located (tied) to two permanent benchmarks (X, Y, & Z coordinates) on as-built drawings.

    7. Valve Boxes:

      1. Provide cast iron screw down neck type.

      2. Do not put concrete collar at top of neck in asphalt

    8. Fire Suppression Water Distribution Piping: Ductile iron, cement lined, with restrained mechanical joints.

    9. Site Water Distribution Piping:

      1. 4” and smaller: Copper; type k; no joints under building slabs.

      2. 5” and larger: Ductile iron, cement lined – restrained mechanical joints.

      3. PVC is not acceptable.

    10. Storm Drainage Pipe and Fittings:

      1. Reinforced concrete pipe class 3, 8 foot minimum length sections.

      2. Ductile iron.

      3. PVC, HDPE, corrugated steel and spiral rib steel are not acceptable.

      4. Wrap joints with filter fabric.

    11. Cleanouts: Provide combination cleanout plug/relief on first cleanout outside of building. Cleanout/relief shall be installed on storm and sanitary sewer lines.

    12. Meter/Back-flow Preventer Vaults: Provide drain (gravity) for vault.

  3. Piped Energy Distribution

    1. Chilled Water Distribution Piping: Pre-insulated concrete lined ductile iron with restrained mechanical joints, High Density Polyethylene (HDPE) jacket, closed cell foam insulation.

    2. Hot Water Distribution Piping: Pre-insulated standard weight steel with welded joints, HDPE jacket, closed cell foam insulation.

    3. Natural Gas Distribution Piping: High Density Polyethylene (HDPE) pipe installed per 49CFR Part 192, by a certified contractor.

    4. Chilled Water Temperatures: Supply: 40 degrees Fahrenheit; Return: no less than 55 degrees Fahrenheit.

    5. Hot Water Temperatures: Supply: 225 degrees Fahrenheit; Return: no higher than 165 degrees Fahrenheit.

  4. Sanitary Sewerage

    1. Package Pumping Stations: Use only with prior approval.

    2. Package Lift Stations: Use only with prior approval.

    3. Sanitary Sewer Manholes, Frames, and Covers:

      1. See G30- 2.2 for manhole requirements.

    4. Coordinate existing flow data with the University to ensure that the down stream system can handle the new flow.

  5. Site Drainage

    1. Plans shall be coordinated and approved by Auburn University’s stormwater infrastructure consultant.

    2. Slope sites to insure positive drainage without wet spots. Drain away from buildings, sidewalks and driveways.

    3. In stairwells, areaways and similar locations where leaf clogging of conventional drains would be expected, provide scupper or cast iron dome type drains.

    4. Reference City of Auburn standards for storm drainage construction where applicable.

    5. Drain grates shall be designed to prevent bike tires and high heels from falling in them.

    6. Install removable bars or grills at open ends of culverts, drains and pipes 10 inch diameter and larger to prevent access by children or animals.

    7. Inlets to be self-cleaning open throat along roadways. Nylon/plastic inlets are not acceptable.

    8. All site and storm water issues and design must be coordinated with and approved by the Auburn University infrastructure consultant.

    9. Design drainage structures and surface runoff to remove water efficiently from the site with proper retention as required. If needed water runoff to be retained on site with an engineered underground structure with appropriate release rates. No above ground ponds or weirs are allowed unless approved by Owner in writing.

    10. Curbs and Gutters

      1. Cast- in-place concrete shall be used unless other design is required to match existing conditions. Minimum 28-day strength shall be 4000 psi with 4% to 6% entrained air.

      2. Expansions Joints shall be specified and shown on the drawings.

      3. Curbs shall pitch to catch or release water as required by adjacent paving grades.

    11. Submit design calculations for the proposed flow of site and storm water drainage to Facilities Division for review.

    12. For yard inlets not subject to vehicular or pedestrian traffic use non-clogging grates. U. S. Foundry and Manufacturing Corporation numbers 6490 and 6492 are typical examples.

  6. Fire Protection

    1. Post indicator valves shall be no less than 40 feet from the building.

    2. Fire hydrant shall be no more than 100 feet from fire department connection.

    3. Fire flow testing is to be part of basic fire protection design services and not performed by Auburn University.
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