Guide for Preparing Hydrology Reports for Water Crossings

Guide for Preparing

Hydrology Reports for Water Crossings

This document is a guidance tool developed to identify the MTO procedure for completing a hydrotechnical design report, commonly referred to as a "Hydrology Report". It provides the detailed documentation requirements for Hydrology Reports prepared for MTO and the rationale for requiring this information. It also provides definitions of the terminology and technical procedures referred to in the document.

The document is divided into three sections, Introduction, Instructions and Reference. The Introduction section provides tools that describe the site and assists in the understanding of MTO requirements. The Instructions section is the main section of the document providing the details of MTO documentation requirements. The Reference section provides additional information and linkages to other MTO Drainage documents.

It is important to note that technical details or policy statements provided in this document are for clarification only. They are not to be considered as substitute for the original documents or policies. It is the designer's responsibility to refer to the original technical manuals, standards and policies for instruction and guidance.

For more information on this guidance tool, go to the section "About this Document".

There are a number of ways to navigate this document. For new users, the "Quick Reference Guide" gives a quick review of document content and provides links to the different sections that address the drainage issues identified. The "Document Map" shows the different components and can also be used for navigation. The index to the left is always available for navigating between the different sections at any time.

To determine when a Hydrology Report is required and the level of detail of the report, at the different structural planning stages refer to the section "MTO Approvals".

To obtain a summary of all the drainage issues that may be required go to the "Checklists".

Please note: Before proceeding, read the section "Review These Points Before Proceeding" for important information.

The MTO Drainage Management Manual is referenced throughout this guide. It is available in digital format through the MTO Online Library Catalogue. To locate the document, search by the title. Hard copies can be purchased from Publications Ontario Online.

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| Welcome | Document Map | About this Document | Quick Reference Guide | Checklists |
| MTO Approvals | Background Information | Drainage Issues | Hydraulic Design |
| Mitigating Impacts | Construction and Operation | Computational Methods |
| MTO Drainage Policy | Glossary | Disclaimer | Authors & Contacts |