STORM DRAIN PIPE

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SECTION 33 41 00

PART 1 - GENERAL

1.01 SECTION DESCRIPTION

A. The Work of this Section includes:

1. Storm sewer pipelines

1.02 RELATED SECTIONS

A. Related Work Specified Elsewhere:

1. Section 01 57 13: Soil Erosion & Sediment Control

2. Section 31 23 33: Excavation, Backfill & Compaction

3. Section 32 12 23: Restoration of Paved Surfaces

4. Section 32 92 00: Finish Grading, Seeding, and Sodding

5. Section 33 44 14: Storm Inlets, Catch Basins, Endwalls, End Sections

6. Section 33 49 13: Storm Manholes

1.03 QUALITY ASSURANCE

A. Reference Standards:

1. American Association of State Highway and Transportation Officials (AASHTO):

M36 Specification for Corrugated Steel Pipe, Metallic - Coated, for Sewers and Drains.

M294 Specification for Corrugated Polyethylene Pipe, 12-to 60-inch Diameter.

2. American Society for Testing and Materials (ASTM):

A760 Specification for Corrugated Steel Pipe, Metallic-Coated, for Sewers and Drains.

C14 Specification for Concrete Sewer, Storm Drain and Culvert Pipe.

C76 Specification for Reinforced Concrete Culvert Storm Drain, and Sewer Pipe.

C507 Specification for Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer

Pipe.

3. Pennsylvania Department of Transportation:

Publication 408 Specifications

Standard Drawings, RC-30M

1.04 SUBMITTALS

A. Manufacturer's Literature:

1. Submit manufacturer's descriptive literature for the following items in accordance with Section 01 33 00:

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• Pipe

• Pipe fittings

• Joints

2. Submit manufacturer's instructions and recommendations for the following items in accordance with Section 01 33 00

• Assembly of joints

1.05 PRODUCT DELIVERY, STORAGE AND HANDLING

A. During loading, transporting and unloading, exercise care to prevent damage to materials.

B. Do not drop pipe or fittings.

C. Other Requirements:

1. Section 01 60 00 also addresses transportation and handling along with storage and protection of materials and equipment.

PART 2 - PRODUCTS

2.01 CORRUGATED GALVANIZED STEEL PIPE

A. Pipe, End Sections and Coupling Bands:

1. Section 601.2, Publication 408 Specifications.

2. AASHTO M36, Type I or ASTM A760, Type 1.

3. Metal sheet thickness and corrugation size as noted below unless otherwise indicated on

Drawings.

Pipe Diameter Wall Thickness Corrugation Size

12 in. 0.064 in. (16 gauge) 2 2/3 in. x ½ in. helical 15 in. 0.064 in. (16 gauge) 2 2/3 in. x ½ in. helical 18 in. 0.079 in. (14 gauge) 2 2/3 in. x ½ in. helical

2.02 NON-REINFORCED CONCRETE PIPE

A. Pipe:

1. ASTM C14, Minimum Class 3 unless otherwise indicated on Drawings.

B. Joints:

1. Bell and spigot, or

2. Tongue and groove

2.03 REINFORCED CONCRETE PIPE

A. Pipe and Fittings:

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1. PennDOT Type B unless otherwise indicated on Drawings.

2.04 ELLIPTICAL REINFORCED CONCRETE PIPE

A. Pipe:

1. PennDOT Type B unless otherwise indicated on Drawings.

3. Wrap the joint of the pipes with two layers of Geotextile, Class 1, as shown on PennDOT

Standard Drawings, RC-30M.

2.05 SMOOTH LINED CORRUGATED POLYETHYLENE PIPE

A. Pipe

1. Section 601.2(a)6.c., Publication 408 Specifications

2. AASHTO M294, Type S (Smooth-lined)

B. Joints

1. ADS N-12 WT IB or approved equal

PART 3 - EXECUTION

3.01 PREPARATION

A. Perform trench excavation to the line and grade shown on the Drawings and as specified in

Section 31 23 33.

B. Provide pipe bedding as specified in Section 31 23 33 for each type of pipe used. Place aggregate in a manner to avoid segregation, and compact to the maximum practical density so that the pipe can be laid to the required tolerances.

3.02 LAYING PIPE IN TRENCHES

A. Give ample notice to the Resident Project Representative in advance of pipe laying operations.

B. Lower pipe into trench using handling equipment designed for the purpose to assure safety of personnel and to avoid damage to pipe. Do not drop pipe.

C. Lay pipe proceeding upgrade with the bell or groove pointing upstream.

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D. Lay pipe to a true uniform line with the barrel of the pipe resting solidly in bedding material throughout its length. Excavate recesses in bedding material to accommodate joints, fittings, and appurtenances.

E. Lay each section of pipe to form a close concentric joint with the adjoining section and to avoid offsets in the flow line.

F. Clean and inspect each pipe and fitting before joining. Align pipe with previously laid sections.

G. Assemble joints in accordance with the pipe manufacturer's instructions. Pipe joints shall consist of a preformed rubber gasket or be mortared except for interlocking style pipe and pipe joined with bands.

1. For mortared joints, mortar the lower half of the joint before placing the succeeding pipe section to bring the inner surface of the abutting pipe flush. Before placing mortar, wet the pipe with as much water as it will readily absorb. Fill the outside of bell- and-spigot pipe joints with mortar, flush with the bell end. Fill tongue-and-groove pipe joints flush with the pipe's outside surface. On the inside of the pipe, fill the lower half of the joint flush with mortar, wipe clean, and finish smoothly. For pipes of 24-inch diameter and larger, fill the joints for the entire inside periphery in the same manner. Fill voids for lift holes with mortar after pipe is placed.

2. For elliptical concrete pipe, wrap the joint of the pipes with two layers of Geotextile, Class 1, as shown on PennDOT Standard Drawings, RC-30M.

H. Check each pipe installed as to line and grade in place. Correct deviation from line and grade immediately. A deviation from the designed grade as shown on the Drawings, or deflection of pipe joints, will be cause for rejection.

I. Place and compact sufficient backfill to hold each section of pipe firmly in place as the pipe is laid.

3.03 BACKFILLING TRENCHES

A. Backfill pipeline trenches only after examination of pipe laying by the Resident Project Representative.

1. If joints are mortared, backfilling may proceed immediately only if the operation will avoid joint damage, maintain pipe in proper alignment and grade, and provide satisfactory curing conditions for mortar.

B. Backfill and compact trenches as specified in Section 31 23 33.

END OF SECTION