Photo courtesy of Washington state DOT Slide Zone Slope above the Stillagaumish River had been timbered several times, which weakened soil stability. Related Links: Lidar Mapping Offers Exacting Detail, a Better Landslide Awareness Tool Landslide Mitigation Measures Fail To Save Plan To Build Bypass Bridges in Oregon New unstable-slope rules, updated in 2011 by the Washington State Dept. of Natural Resources, and unheeded warnings about logging as far back as 1988, could not prevent the March 22 landslide near Oso nor keep victims out of its deadly path.The event has killed at least 24, with 22 missing, as of April
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.