Update from Sound Transit
Neighborhood
and Residential Field Work
Over the next
several months Sound Transit representatives will contact property owners for
approval to access private property in order to conduct geotechnical drilling,
utility potholing and survey work. This information is needed to evaluate and
refine the final design of the planned Link light rail expansion.
After receiving approval from property owners in the
form of Right of Entry authorizations, work on private and public properties
will take place over the next six months or more along the Interstate 5
corridor between Northgate and Lynnwood.
Utility
Potholing
Potholing
involves drilling small holes to locate existing underground utilities. In this
round of potholing, crews will be drilling in areas to confirm that no
utilities exist underground in areas that will be excavated for the future
route or stations.
Geotechnical
Drilling
In order
to study soil and groundwater conditions, drilling or “borings” are necessary
to collect soil samples for analysis and install groundwater monitoring
devices. A drill rig and truck will perform borings that will remove soil and
install a monitoring device at each site.
Crews will be monitoring water levels by visiting
these sites to take measurements throughout final design of the project. Each
hole will be covered with a metal plate until they are refilled and patched to
match previous conditions as closely as possible. In accordance with all local
regulations, borings will be done carefully to avoid soil erosion and dirt or
mud from leaking into surface waters, wetlands and drainage systems. Each site
may take about three days to complete.
Land
Surveys
Civil
surveyors will gather topographical information and may leave temporary paint
markings, survey nails on the ground or ribbons in trees. Small holes may be
dug, but will be refilled. Survey flags may also be placed to indicate
boundaries and should remain in place until they are removed by staff.
Tree
Surveys
Survey
crews will evaluate existing trees in the Interstate 5 right of way and on
private property potentially acquired by the project to assess future tree removal.
Trees located where the route or stations exist will need to be removed to
build the project as well as trees that pose a risk to future train operations.
Your cooperation and assistance is appreciated as neighborhood and residential
field work is completed.
For
more information
For
more information about the Lynnwood Link Extension project, please contact
Roger Iwata at 206-689-4904 or roger.iwata@soundtransit.org.
You can also visit the Lynnwood Link Extension web
page.
To report urgent construction matters: please call
Sound Transit’s 24-hour construction hotline at 1-888-298-2395.
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