Traffic Study Add Info
City of Yelm
Community Development Department
105 Yelm Avenue West
P.O. Box 479
Yelm, WA 98597
November 5, 2003
Steve Chamberlain
SCA Consulting Group
P.O. Box 3485
Lacey, WA 98509-3485
Re: Yelm Terra Traffic Impact Study
Dear Steve:
The Community Development Department has reviewed the Traffic Impact Study submitted for the preliminary subdivision of Yelm Terra, located on 105th Street in Yelm. The Department has
the following comments and questions which need to be addressed in an updated study prior to issuance of a SEPA threshold determination.
The study does not discuss how access to Mill Road by traffic generated by the subdivision is going to be restricted. Alternatives for accomplishing this need to be discussed as part
of the study.
The proposed one-way ingress (southbound only) from the subdivision to 3rd Street is not consistent with the City’s Development Guidelines and is not acceptable mitigation for traffic
impacts to 3rd Street.
The traffic facilities charge is based on peak PM trips of 1.01 per dwelling unit, which is 757.50 per lot, with a credit of 757.50 for the existing house on the property.
As discussed in the scoping meeting, the intersections of Mosman and 3rd and 3rd and Yelm Avenue need to be analyzed as part of the study, particularly since the entrance to the subdivision
from 3rd Street can not be one-way.
The study used a different traffic distribution than was provided by the City at the scoping meeting, probably due to the recommendation that 3rd Street be one-way.
The level of service at the intersection of 1st Avenue and Yelm Avenue is currently F, not D as noted in the study. This needs to be corrected or the difference explained in the study.
It unclear in the study whether the future LOS calculation assumes the projects listed in the six-year traffic improvement plan have been completed.
The study, which is required to be prepared by a licensed engineer, is not stamped nor is the author, other than the name of the firm, identified.
If you have any questions about the additional information required to continue the review process, please don’t hesitate to contact the Department at (360) 458-3825.
Sincerely,
Grant Beck, Director
Department of Community Development
c. Transportation Engineering NorthWest, LLC
16625 Redmond Way, Suite M
PMB 323
Redmond, WA 98052