This paper looks at the method of assessing fish passage at culverts, common problems with the methodology, metrics and preliminary findings from over 4,000 assessments, particularly on why culverts fail to pass fish.
This guide document represents the culmination a planning framework conceptualized over many months of work developing Watershed Connectivity Remediation Plans in four target watersheds as part of the B.C. Fish Passage Restoration Initiative.
This report reviews that 255 detailed culvert assessment that were completed during the Broken Brooks project and remedial worked was undertaken on 46 barrier culvert sites.
This project assessed seventy-five culvert crossings in the Kakwa River watershed. Each crossing was assigned a score that related to eight elements pertaining to erosion and sediment delivery potential.
This manual provides information on surveying culverts for type, slope, outfall height, constriction, and other physical parameters.
This document describes the importance of proper culvert design and installation for fish passage, including scheduling installation and maintenance, types of culvert design, retrofits and on-site considerations. Causes of barriers to fish passage in culverts…
This document provides four categories for culvert design techniques: No Impedance, Geomorphic Simulation, Hydraulic Simulation and Hydraulic Design. Design examples and case studies are provided, alongside information on construction, maintenance and monitoring.
Alberta Transportation developed these guidelines to be a best practice approach to designing and constructing culverts throughout the province.
This guide is intended for people designing permanent road-crossing culverts to facilitate upstream fish migration. It provides guidance for projects involving new culvert construction and retrofitting or replacing existing culverts.
This document details Level 2 culvert inspections and the assessment of condition of various culvert components.
This protocol developed by the BC Ministry of Environment is a systematic watershed-based process used to determine and restore fish passage at culverted fish-stream crossings.
This document provides guidance on reducing impacts to wildlife and incorporating best management practices within transportation panning and development projects. It summarizes the current state of knowledge on road ecology and crossing system design.
These inspection procedures are intended for fish biologists to assess fish habitat constraints at culverts associated with road crossings. It encourages a watershed approach to evaluating fish habitat and restoring access.
This document establishes baseline design criteria for technical and nature-like fishways intended to improve passage for migratory fish and other aquatic organisms.
This document provides guidance on how to evaluate the variation of velocity within a culvert cross-section to facilitate fish passage design.
This guidebook helps forest and other resource managers and practitioners to plan and implement sound fish-stream crossing practices. It includes British Columbia-specific legislative reference material and the province’s strategic approach to addressing fish passage at…
These guidelines describe a specific methodology for determining the vertical stability of stream channels in the vicinity of existing road crossing.
This DFO document provides procedural and technical information to ensure that engineers and other design professionals properly incorporate fish passage into watercourse crossings.
This paper presents the solutions to a complex site-specific culvert project in Peel region. It breaks down the design parameters and site investigations required, the environmental constraints and the construction process.
This guide provides information on assessing fish passage effects for new development proposals and identifies regulatory tools that should be used to manage these effects.