DeMeester Project
Missoula, Montana
Project included stabilization of a commercial property along the
Clark Fork river. The property had experienced significant loss due to
river undercutting. Provided subsurface investigation, hydrologic
research, environmental permit requirements, and slope stability
analysis. Provided conceptual designs for streambank stabilization
including gabion-faced mechanically stabilized retaining walls, and
riprap reinforcement. Design details included riprap sizing, erosion
control, and toe keyway.
Weeksville-West
Culvert Outfall Design
Plains, Montana
Project included energy-dissipation outfall structures for 36-inch
culverts installed under railroad tracks, and discharging into the
Clark Fork river. Performed research to determine design flood levels
and velocities. Design challenges included extremely tight working
conditions and steep slopes. Since there was not enough horizontal
length to provide rock chutes, our energy dissipation design
considered a corrugated end tee section, with riprap on either end.
Riprap was sized based on both effluent flows and design river
velocities. Erosion protection above culvert outlets included coconut
blankets and seeded topsoil.
