Study:
172 Avenue NE Corridor
Area:
NE 111 Street to NE 128 Street
Funding:
$260,000
Funding source: City of Redmond
This corridor study began project development of the
172 Avenue NE extension project, as indicated in the
Transportation Master Plan (TMP). The study focused
on two main pieces of work:
1. Evaluation of impacts of the planned 172 Avenue NE
extension between NE 122 Street and NE 124 Street. This
portion of the study also includes an evaluation of an
alternative to the extension -
improvements to NE 122
Street/162 Place NE from 172 Avenue NE to NE 124 Street.
2. Evaluation of traffic calming treatments suitable to
the 172 Avenue NE corridor from NE 111 Street to NE 128
Street, and development of roadway cross sections for 172
Avenue NE and NE 122 Street.
Several development applications were in process for
the areas along NE 122 Street and 172 Avenue NE. In
order to condition these developments effectively, and to
determine access requirements for parcels adjacent to the
unimproved portion of 172 Avenue NE, a determination on the
extension of the roadway was needed. In addition, all
segments of the 172 Avenue NE corridor are currently
experiencing speeds close to or more than 10 MPH over the
posted speed limit. The operational objectives of the
traffic calming design and cross section development are to
reduce traffic speeds, discourage regional through traffic,
and protect neighborhood character. Design places
primary emphasis on traffic calming, emergency service access,
and enhancing multi-modal opportunities.
King County staff will be working with Redmond staff to
coordinate improvements proposed within King County - both in
the neighborhood north of NE 124 Street, and at other
intersection locations in the area. Staff is also
coordinately closely with work done as part of the recent
North Redmond Neighborhood Plan.
Work entailed robust environmental impact evaluation
and public involvement, including a project-level SEPA
determination, and several public meetings and stakeholder
interviews. The outcome of this work effort helped provide
preliminary design of a preferred set of improvements,
planning level cost estimates, and identification of impacts
and proposed mitigation.
At the end of the study, staff returned to Council with
recommendations for moving forward with a preferred set of
improvements and an implementation plan. It is
anticipated that development will construct and/or contribute
funding towards many of the identified improvements.
Regardless of the ultimate decision on the extension of 172
Avenue NE from NE 122 Street to NE 124 Street, it was
anticipated that the City will proceed with traffic calming
improvements on the sections of the 172 Avenue NE corridor
between NE 111 Street and NE 122 Street.
The first public meeting to discuss the project was held on
April 27.
For the traffic calming and cross section development
portion of the study, the 172 Avenue NE corridor was broken into
four
sub-areas. Each sub-area reflects different
characteristics of the corridor. Input from residents
adjacent to each sub-area was specifically requested in
regards to the traffic calming treatments.
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