A primary focus of our company is conducting and integrating instream flow studies on regulated rivers for a variety of ecosystem functions, including fish habitat, water temperature, geomorphic thresholds, shallow groundwater resources, riparian vegetation, herpetofauna, RHJV bird species, and other focal species. In parallel with the ecological need evaluations, we also focus on developing innovative ways to refine operations such that impacts to water supply, power generation, and other water management functions are minimized.
Our riparian botanists work with hydrologists, engineers, and fluvial geomorphologists to develop riparian restoration approaches that focus on both artificial propagation (riparian plantings) as well as natural regeneration. Artificial propagation approaches include floodplain elevation design, soils management, irrigation design, and implementation efficiency design. Natural regeneration approaches focus on surface and groundwater hydrology management, topographic design (floodplains and other surfaces), soils management, and seed dispersal timing processes.
In conjunction with our instream flow management on regulated rivers, we conduct sediment supply, transport, and storage evaluations that informs coarse and fine sediment management to improve physical processes and habitat while maintaining flood control. Typical products include coarse sediment management plans (gravel sources and augmentation into the river), and watershed rehabilitation recommendations and/or sedimentation basins to reduce fine sediment supply.
Our company conducts broad scale restoration planning that integrates ecological management objectives (aquatic habitat, riparian vegetation, upland vegetation, fluvial geomorphology, wildlife) with restoration implementation. Typical products include restoration plans that provide the historical-to-contemporary evolution of the watershed, a strong scientific rationale for restoration actions, and a clear path to design and implementation of those restoration actions.
Formed in January 1995, McBain and Trush is a professional consulting corporation applying fluvial geomorphic and ecological research to river preservation, management, and restoration. Our primary interests are: (1) maintaining, or attaining, river ecosystem health in regulated rivers; (2) assessing impacts of land use activities on stream ecosystems, and (3) recommending management strategies that improve those ecosystems.