With support of the B.C. Ministry of Transportation and Highways, short and long-term effects of highway construction on Coquihalla River summer steelhead began in August 1985 and will continue to at least 1987. Intensive fish population and habitat investigations were focused on a 23 km section of the mainstem between Othello and Boston Bar Creek. Within this reach, several major diversions and other channel encroachments have occurred as a result of recent highway construction. Mitigation measures have been taken to reduce these impacts on steelhead habitat.
Ptolemy, R. A.. 1986. Assessment of Highway Construction Impacts and Fisheries Mitigation in the Coquihalla River Near Hope, British Columbia: Progress in 1985. B.C. Ministries of Transportation and Highways and Environment and Parks. Fisheries Improvement Unit. 04