Drainage Management

Drainage management supports highway management in four areas:

• Highway Design,
• Highway Construction,
• Corridor Management, and
• Highway Maintenance.

To address drainage and hydrology considerations in highway design and corridor management, the Ministry of Transportation (MTO) has developed a number of documents and tools. These tools are intended to assist consultants, design engineers, drainage professionals and MTO staff to identify MTO drainage policy, MTO design procedures, and MTO requirements. Below are links to the tools that are available online.

• MTO Drainage Management Manual, DMM, (1997) - available in digital format through the MTO Online Library Catalogue. To locate the document, search by the title.
  Hard copies can be purchased from ServiceOntario Publications.
• Highway Drainage Design Standards 2008 (This link will take you to the MTO Online Catalogue. To find this document enter Drainage and Standards in the search box.)
• Guide for Preparing Hydrology Reports for Water Crossings
• Stormwater Management Requirements for Land Development Proposals
• MTO Gravity Pipe Design Guidelines: Circular Culverts and Storm Sewers - available in digital format through the MTO Online Library Catalogue
• Municipal Drains — Outlet Liability Assessment Factors for MTO Highway Rights of Way
• Drainage Directives
• Evaluation of Drainage Management Software
• Glossary