Spec_Storm_Sewer.pdf

Shultz + Associates Architects Airfiled Damage Repair Training Pad S+A Project No. 1431-7 North Dakota Air National Guard, Hector IAP NDANG Project No. KKGA162023 Fargo, North Dakota

MANHOLES AND STRUCTURES 33 05 13 - 1

SECTION 33 05 13

MANHOLES AND STRUCTURES

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Monolithic precast concrete manholes with transition to lid frame, covers, anchorage, and accessories.

1.02 RELATED REQUIREMENTS

A. Section 31 23 16.13 - Trenching.

B. Section 31 23 23 - Fill and Backfill.

C. Section 33 41 11 - Storm Sewer Piping.

1.03 REFERENCE STANDARDS

A. ACI 530/530.1/ERTA - Building Code Requirements and Specification for Masonry Structures and Related Commentaries; 2011.

B. ASTM C478 - Standard Specification for Circular Precast Reinforced Concrete Manhole

Sections; 2015.

C. ASTM C478M - Standard Specification for Circular Precast Reinforced Concrete Manhole

Sections [Metric]; 2015.

1.04 SUBMITTALS

A. Shop Drawings: Indicate manhole locations, elevations, piping sizes, elevations of penetrations, and resilient rubber connectors.

1.05 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with minimum three years documented experience.

1.06 FIELD CONDITIONS

A. Cold and Hot Weather Requirements: Comply with requirements of ACI 530/530.1/ERTA or applicable building code, whichever is more stringent.

PART 2 PRODUCTS

2.01 STORM SEWER MANHOLES

A. Manhole Sections: Reinforced precast concrete in accordance with ASTM C 478 (ASTM C 478M), with resilient connectors complying with ASTM C 923 (ASTM C 923M) and integral steps.

B. Casting: Lid and frame ASTM A 48/A 48M, Class 30B cast iron construction.

C. Joints: Shall be of the tongue and groove type and shall be designed to self-centering. Joints shall meet the requirements of ASTM C990 unless otherwise specified. Joints shall be an all weather butyl rubber gasket in flexible rope form, meeting or exceeding the requirements of federal specification 55.5-210A and AASHTO M-198. Where conditions warrant, an approved primer shall be used to obtain a sufficient seal as directed by the Engineer.

D. Connections:

1. Concrete to PVC pipe adaptors shall be used to connect PVC pipe to inlets. PVC manhole adaptor shall be GPK Products or approved equal.

E. Adjusting Rings: shall be either Reinforced Concrete grade rings conforming to ASTM 478 or injection molded High Density Polyethylene (HDPE) adjustment rings as manufactured by Ladtech, Inc. or approved equal. The HDPE rings shall be manufactured from Polyethylene plastic in accordance with ASTM D 1248 and shall be installed as per the manufacturer's recommendation with a bead of Butyl Sealant applied between the rings, cone and casting.

F. Lift Holes: shall be manufactured to provide a watertight seal.

1138955067N Highlight

NDANG Project No. KKGA162023 Fargo, North Dakota

MANHOLES AND STRUCTURES 33 05 13 - 2

G. Configuration

1. Shaft Construction: Concentric; lipped male/female dry joints; sleeved to receive pipe sections or as detailed on the drawings.

2. Shape: Cylindrical.

3. Clear Inside Dimensions: As indicated on plans.

4. Design Depth: As indicated on plans.

5. Clear Lid Opening: As indicated on plans.

6. Pipe Entry: Provide openings as indicated on plans.

7. Steps: As required by code.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify items provided by other sections of work are properly sized and located.

B. Verify that built-in items are in proper location, and ready for roughing into work.

C. Verify excavation for manholes is correct.

3.02 PREPARATION

A. Coordinate placement of inlet and outlet pipe or duct sleeves required by other sections.

3.03 MANHOLES

A. Place concrete base pad, trowel top surface level.

B. Place manhole sections plumb and level, trim to correct elevations, anchor to base pad.

C. Cut and fit for pipe.

D. Grout base of shaft sections to achieve slope to exit piping. Trowel smooth. Contour as required.

E. Set cover frames and covers level without tipping, to correct elevations.

F. Coordinate with other sections of work to provide correct size, shape, and location.

3.04 SCHEDULES

A. Storm Sewer Inlets and Manholes: Precast concrete sections, steps, inside dimension and depth indicated on plans.

END OF SECTION

NDANG Project No. KKGA162023 Fargo, North Dakota

STORM SEWER PIPING 33 41 11 - 1

SECTION 33 41 11

STORM SEWER PIPING

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Storm drainage piping, fittings, and accessories.

B. Connection of drainage system to Existing Sewer.

1.02 RELATED REQUIREMENTS

A. Section 31 23 16.13 - Trenching: Excavating, bedding, and backfilling.

B. Section 33 05 13 - Manholes and Structures.

1.03 REFERENCE STANDARDS

A. AASHTO M 252 - Standard Specification for Corrugated Polyethylene Drainage Pipe; 2009.

B. AASHTO M 294 - Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500 MM

(12- to 60-in.) Diameter; 2013.

C. ASTM C76 - Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer

Pipe; 2015.

D. ASTM C76M - Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer

Pipe (Metric); 2014.

E. ASTM C443 - Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber

Gaskets; 2012.

F. ASTM C443M - Standard Specification for Joints for Concrete Pipe and Manholes, Using

Rubber Gaskets (Metric); 2011.

G. ASTM D1785 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules

40, 80, and 120; 2015.

H. ASTM D2321 - Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications; 2014.

I. ASTM D3034 - Standard Specification for Type PSM Poly(Vinyl Chloride) (PVC) Sewer Pipe and Fittings; 2015.

1.04 DEFINITIONS

A. Bedding: Fill placed under, beside and directly over pipe, prior to subsequent backfill operations.

1.05 SUBMITTALS

A. Product Data: Provide data indicating pipe and pipe accessories .

B. Manufacturer's Installation Instructions: Indicate special procedures required to install Products specified.

1.06 REGULATORY REQUIREMENTS

A. Conform to applicable code for materials and installation of the Work of this section.

B. Coordinate the work with termination of storm sewer connection outside building, trenching, connection to foundation drainage system and municipal sewer utility service.

PART 2 PRODUCTS

2.01 SEWER PIPE MATERIALS

A. High Density Polyethylene Pipe (HDPE):

1. Dual Wall.

2. 12" through 60" shall meet AASHTO M 294, Type S or ASTM F 2306.

3. Pipe fittings: shall meet AASHTO M 252, AASHTO M 294, or ASTM F 2306.

4. Water tight joint: shall meet ASTM F 477 and ASTM D 3212.

1138955067N Highlight

1138955067N Highlight

NDANG Project No. KKGA162023 Fargo, North Dakota

STORM SEWER PIPING 33 41 11 - 2

5. Approved Products:

a. Hancor Blue Seal HDPE pipe with water tight joint.

b. ADS N12 WT IB pipe.

c. Or approved equal.

2.02 PIPE ACCESSORIES

A. Fittings: Same material as pipe molded or formed to suit pipe size and end design, in required tee, bends, elbows, cleanouts, reducers, traps and other configurations required.

B. Concrete Manhole Connections:

1. PVC: Sanded Manhole Adaptor, manufactured by GPK or approved equal.

2. HDPE: Waterstop WS-30 Adaptor, manufactured by Press Seal Gasket Corp. or approved equal.

2.03 CATCH BASIN AND AREA DRAIN COMPONENTS

A. Lids and Drain Covers: Cast iron, hinged to cast iron frame.

1. Catch Basin:

a. Lid Design: Checkerboard grill.

b. See plan detail.

B. Shaft Construction and Eccentric Cone Top Section: Reinforced precast concrete pipe sections, lipped male/female dry joints, nominal shaft diameter of 27 inches.

C. Base Pad: Precast concrete, levelled top surface to receive concrete shaft sections, sleeved to receive storm sewer pipe sections.

2.04 BEDDING AND COVER MATERIALS

A. Bedding: As specified in Section 31 23 16.13.

B. Cover: As specified in Section 31 23 16.13.

PART 3 EXECUTION

3.01 TRENCHING

A. Backfill around sides and to top of pipe with cover fill, tamp in place and compact, then complete backfilling.

3.02 INSTALLATION - PIPE

A. Verify that trench cut is ready to receive work and excavations, dimensions, and elevations are as indicated on layout drawings.

B. Install pipe, fittings, and accessories in accordance with manufacturer's instructions. Seal watertight.

C. Lay pipe to slope gradients noted on layout drawings; with maximum variation from true slope of

1/8 inch in 10 feet.

D. Connect to building storm drainage system, foundation drainage system, and utility/municipal sewer system.

E. Connect to municipal storm sewer system, through installed sleeves.

3.03 INSTALLATION - CATCH BASINS, TRENCH DRAINS AND CLEANOUTS

A. Form bottom of excavation clean and smooth to correct elevation.

B. Form and place cast-in-place concrete base pad, with provision for sanitary sewer pipe end sections.

C. Level top surface of base pad; sleeve concrete shaft sections to receive storm sewer pipe sections.

D. Establish elevations and pipe inverts for inlets and outlets as indicated.

E. Mount lid and frame level in grout, secured to top cone section to elevation indicated.

NDANG Project No. KKGA162023 Fargo, North Dakota

STORM SEWER PIPING 33 41 11 - 3

3.04 FIELD QUALITY CONTROL

A. Perform field inspection and testing in accordance with Section 01 40 00.

B. If tests indicate work does not meet specified requirements, remove work, replace and retest at no cost to Owner.

3.05 PROTECTION

A. Protect pipe and bedding cover from damage or displacement until backfilling operation is in progress.

END OF SECTION