Specification for Road Works
Series 500
Drainage and Service Ducts
DRAINAGE AND SERVICE DUCTS
Contents
Clause
Title
501
Pipes for Drainage and Service Ducts
2
502
Excavation for Pipes and Chambers
6
503
Bedding, Laying and Surrounding of Pipes
7
504
Jointing of Pipes
8
505
Backfilling of Trenches and Filter Drains
10
506
Connecting to Existing Drains Chambers and Channels
11
507
Chambers
11
508
Gullies and Pipe Junctions
14
509
Testing and Cleaning
15
510
Surface Water Channels and Drainage Channel blocks
16
511
Land Drains
16
512
Backfilling to Pipe Bays and Verges on Bridges
17
513
Permeable Backing to Earth Retaining Structures
17
514
Fin Drains
17
515
Narrow Filter Drains
23
516
Combined Drainage Channel Systems
25
517
Linear Drainage Channel Systems
26
518
Thermoplastics Structured Wall Pipes and Fittings
30
519
Concrete Bag work
37
520
The Cleaning of Existing Drainage Systems
37
March 2003
Page
1
Volume 1
Specification for Road Works
Series 500
Drainage and Service Ducts
DRAINAGE AND SERVICE DUCTS
501 Pipes for Drainage and for Service
Ducts
General
1 Where the term drain is used in this
Series it shall be deemed to include the terms sewer and piped culvert. The
Contractor shall design the piped culverts listed in Appendix 1/10 in accordance with the requirements of
Clause 106.
2 All drains constructed of pipes as well as piped culverts up to and including 900 mm internal diameter shall comply with this Series and any additional requirements in Appendix 5/1. Drains constructed using pipes exceeding 900 mm internal diameter as well as box and piped culverts shall comply with the
2500 Series. Unless otherwise described in Appendix 5/1 only one type of pipe shall be used within any individual drain or service duct