Transportation
At HWA, we are committed to enhancing safety and mobility by providing innovative geotechnical solutions and our in-house Falling Weight Deflectometer allows us to provide quick, non-destructive testing to measure deflections along the pavement surface under the impact of controlled loading, assessing the strength and thickness of pavement layers quickly and accurately.
Find out more about our in-house Falling Weight Deflectometer
HWA conducted a geotechnical & pavement engineering investigation for SDOT’s proposed improvements along Harrison and Mercer streets in Seattle, WA. Improvements include transit speed and reliability treatments as well as the design of bus lanes, channelization and signal optimization for buses, transit signal priority, and bus stop location/consolidation. HWA performed pavement coring and Falling Weight Deflectometer testing to measure pavement deflections and subgrade conditions.
HWA was the lead geotechnical engineer for the Federal Way City Center Access – Phase 1 Project. The project included multi-modal improvements near I-5 and the S 320th St interchange. Key elements were extending and widening S 324th St, modifying on/off ramps, adding a multi-use trail, converting lanes to HOV, and replacing existing culverts with fish-passable culverts.
HWA managed a geotechnical pavement investigation for the 154th Ave Pavement Management Project in Redmond, WA, assessing pavement thickness, subgrade conditions, and structural integrity along 1,800 feet. Work included 20 pavement cores, FWD testing, and lab soil analysis.
HWA conducted a geotechnical & pavement engineering investigation for SDOT’s proposed improvements along Harrison and Mercer streets in Seattle, WA. Improvements include transit speed and reliability treatments as well as the design of bus lanes, channelization and signal optimization for buses, transit signal priority, and bus stop location/consolidation. HWA performed pavement coring and Falling Weight Deflectometer testing to measure pavement deflections and subgrade conditions.