UPDATED - Feb. 1, 2013
Crews conduct geotechnical drilling near
SR 520 in Seattle
In early 2013, crews are continuing the on-land portion of geotechnical investigations, which gather valuable information for our engineers and potential contractors as they design stormwater facilities and evaluate potential construction staging areas. The current investigations will provide additional data to the project team as WSDOT prepares to move forward with future construction of the West Approach Bridge North (WABN). The WABN phase of construction for the SR 520, I-5 to Medina: Bridge Replacement and HOV Project will replace one of the most vulnerable corridor elements, and is scheduled to begin in summer 2014.
How loud will the work be?
The drill rig will sound similar to background noise from the highway. Residents may also hear a hammering sound during soil sampling. When in use, the noise generated by the soil sampling equipment may reach up to 70 decibels, which is similar to the sound of highway traffic when standing approximately 50 feet away.
Where will the work take place?
See below for a vicinity map of the work area in Seattle, located in the Montlake area near SR 520.
Geotechnical Monitoring
Crews are continuing to collect data from geotechnical monitoring wells in the Seattle area of the SR 520, I-5 to Medina: Bridge Replacement and HOV Project. These wells are part of an ongoing geotechnical study of soil and groundwater conditions. The information gathered helps us better understand the composition and characteristics of the ground in this area, which is vital to continuing structural engineering design and completing future construction of SR 520 improvements in the area.