Data Collection: The Consultant will review existing relevant culvert information, including channel morphology, characterization of bed substrate, channel type, and condition. USFWS has performed some data collection, the results of which are available here and can be emailed upon request. If necessary, the Consultant will delineate wetlands adjacent to the channel throughout the project area. Topographic survey will be performed to record existing site conditions, including channel cross sections upstream and downstream of the structure, channel profile (20-30x times bank full width upstream and downstream of project site, pool depths, and head of riffle), road elevations, infrastructure that may be affected by the change, and other site features relevant to the design.
