Environmental Guide for Wildlife Mitigation


Environmental Guide for Wildlife Mitigation

Ontario Ministry of Transportation - 2015

Organization: Ontario Ministry of Transportation

Location: Ontario


Highways function to meet society’s social and economic needs for safe and efficient transportation, travel opportunities, and the movement of goods and services. In doing so, highways exert various effects on the surrounding landscape, some of which may be positive, or at least neutral, but many of which can be negative.
The purpose of this document (the Guide) is to advise highway proponents on potential wildlife mitigation strategies once a transportation facility has been identified as required or has been constructed, and the facility has already been routed or constructed to avoid, or minimize impact on, sensitive habitat areas.
Highway undertakings may consist of new highway construction as well as twinning, widening or rehabilitation of existing highways and bridges. All projects are undertaken through an Environmental Assessment (EA) Process. In planning, wildlife habitat avoidance should be considered to the extent possible in association with other environmental factors and competing resource trade-offs. In design, further refinements (e.g. horizontal and vertical alignment shifts) may be made along the alignment to avoid identified wildlife impacts.
Guidance in this document is based on an extensive literature review of the current scientific knowledge supplemented by professional experience. The increased recognition that highway design and landscape ecology are intertwined, has led to the heightened consideration of road effects on wildlife and corresponding wildlife mitigation strategies. Monitoring of the effectiveness of implemented strategies is important, but to date has been variable in extent and design. While the monitoring database is rapidly growing, there are still large gaps in knowledge especially for smaller animals such as amphibians and reptiles. As new information becomes available it will help guide planners and designers in highway design.
The Guide contains the following sections:
Section 2 – Road Ecology Concepts
Section 3 – Identifying Wildlife Conflict Zones
Section 4 – Wildlife Mitigation Measures for Highway Design
Section 5 – Quality Assurance and Monitoring
Section 6 – References


Document Type: pre-mitigation protocols mitigation design justification to mitigate maintenance practices other mitigation initiatives
Project Type: underpass fencing signage habitat creation/restoration traffic calming routine maintenance guidelines
Infrastructure Asset: existing roadway large underpass medium underpass new roadway small underpass
Fauna: amphibians fish/aquatic organisms large mammals medium mammals reptiles small mammals