SNiP 2.04.03-85 PDF

Full title and description

SNiP 2.04.03-85 — "Канализация. Наружные сети и сооружения" (Sewerage / Sewerage systems: external networks and structures). A Soviet-era construction standard setting technical, sanitary and design requirements for the planning, hydraulic calculation, structural design, installation and operation of external sewerage networks and associated facilities (collectors, stormwater systems, pumping stations, manholes, outfalls and related structures) for settlements and industrial sites.

Abstract

This SNiP establishes normative requirements and methods for design and layout of external sewerage: gravity and pressure sewers, stormwater collection and treatment elements, collectors, pumping stations and drainage outfalls. It covers hydraulic design (diameters, slopes, velocities), structural and geotechnical considerations for buried conduits and manholes, material selection, requirements for pumping stations and ancillary equipment, basic provisions for wastewater receiving, preliminary treatment and discharge, and provisions for operation and maintenance and environmental protection measures. The document was widely used as the primary regulatory reference for external sewerage design until its provisions were updated in later regulatory documents (SP series).

General information

• Status: Superseded / replaced by later SP documents (updated in the Russian system as SP 32.13330.x series).
• Publication date: Approved 1985 (SNiP designation -85); introduced into practice from 1 January 1986 (with subsequent amendments).
• Publisher: State Committee for Construction of the USSR (Gosstroy); developed by relevant Soviet design and research institutes (e.g., NIIOSP and specialized institutes and design organizations).
• ICS / categories: ICS 91.140 (installations and drainage systems) — drainage/sewerage and water-supply related categories.
• Edition / version: Original SNiP 2.04.03-85 (with Amendment No.1 and later references); later actualization incorporated into SP 32.13330.2012 and subsequent updated SP editions.
• Number of pages: Approx. 91 pages (published PDF editions vary by publisher and may include annexes; some reprints list up to ~100+ pages).

Scope

SNiP 2.04.03-85 applies to the design, reconstruction and technical specification of external sewerage systems of permanent purpose for settlements and economic facilities. The scope includes household and similar industrial wastewater, stormwater collection and disposal, combined systems where allowed, hydraulic and structural design of pipelines and collectors, design of inspection and ventilation wells, pumping stations and lift facilities, measures to protect receiving water bodies, and requirements for commissioning and operation. It does not replace specialized technological rules for process wastewater that require separate treatment or regulatory approvals.

Key topics and requirements

• Principles for planning and layout of external sewer networks (routes, connection to receiving systems, coordination with water supply and other utilities).
• Hydraulic design: calculation of flows, diameters, permissible and recommended slopes, minimum self-cleansing velocities, and velocity limits for different pipe sizes and use cases.
• Classification and design of stormwater systems and requirements for retention, preliminary treatment and dilution limits before discharge to receivers.
• Design of conduit structures: pipe materials, bedding/backfill, depth of laying, frost protection and anti-buoyancy measures.
• Manholes, inspection wells and access structures: spacing, structural requirements, ventilation and sealing details.
• Pumping stations and pressure mains: selection of pumps, redundancy rules, hydraulic regimes, control and automation recommendations, and layout of pump stations.
• Collectors and inter-collector systems: gravity vs. pressure collectors, branching rules and hydraulic balancing.
• Requirements for sewage treatment and discharge: basic criteria for effluent quality, pre-treatment where necessary, sludge handling basics and environmental safeguards.
• Operational and maintenance provisions: access, cleaning regimes, safety and inspection intervals; recommendations for reconstruction and tie-ins to existing systems.
• Interaction with other normative documents (SNiP/SO/СП and GOSTs) for materials, structural design and electro-mechanical equipment.

Typical use and users

Primary users are civil and sanitary engineers, urban infrastructure designers, consulting engineering firms, municipal utility planners, construction contractors, and technical audit/inspection bodies involved in design, construction or reconstruction of external sewerage networks. The text is used to prepare design documentation, technical specifications, estimate documentation and to guide construction and commissioning of sewerage works. Educational institutions and training programs for municipal engineering also reference it for historical/regulatory context.

Related standards

Closely related documents include SNiP and SP texts for internal and external water supply and sanitation (for example SNiP 2.04.01-85 for internal water supply and sewerage of buildings, SNiP 2.04.02-84 for water supply external networks), subsequent consolidated SP 32.13330.x series (the updated/revised set that replaced this SNiP), and various GOSTs specifying pipe, joint and material standards, pump and electrical equipment standards, and regional/local codes governing effluent limits and environmental protection.

Keywords

СНиП 2.04.03-85; SNiP 2.04.03-85; sewerage; external networks; stormwater; collectors; pumping stations; manholes; hydraulic design; wastewater; sewer design; canals; sewage treatment; Gosstroy.

FAQ

Q: What is this standard?

A: SNiP 2.04.03-85 is a Soviet-era construction standard titled "Канализация. Наружные сети и сооружения" that sets rules and technical requirements for design and construction of external sewerage networks and related structures.

Q: What does it cover?

A: It covers planning and layout, hydraulic calculations (flows, diameters, slopes), structural design of buried pipelines and manholes, pumping stations and pressure mains, stormwater collection and preliminary treatment, material and installation requirements, and basic provisions for operation and environmental protection.

Q: Who typically uses it?

A: Civil and sanitary engineers, designers of municipal and industrial sewerage systems, contractors, municipal utilities, and educators referencing regulatory practice for sewer design.

Q: Is it current or superseded?

A: The SNiP 2.04.03-85 text has been superseded by the later SP (Svod Pravil) series (notably the SP 32.13330.x family which actualized and replaced many former SNiP provisions). Designers should apply the currently in-force SP versions and any applicable local regulations when preparing contemporary projects.

Q: Is it part of a series?

A: Yes — it is part of the SNiP regulatory system for water supply and sanitation. It is related to companion SNiP documents on internal water supply and sewerage and external water-supply networks; its content was later incorporated and updated within the SP 32.13330 series.

Q: What are the key keywords?

A: Sewerage, external sewer networks, stormwater, collectors, manholes, pumping stations, hydraulic design, wastewater treatment, SNiP 2.04.03-85.