HomeMy WebLinkAboutItem 5.02 Alcosta Sound Study (2) CITY CLERK
File # ~_j~--~r~..~~
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: August 17, 1999
SUBJECT: Written Communication: Let-tel: frOm City of San Ramon
Regarding Sound Study Request for Alcosta Boulevard
Report Prepared by: Lee S. Thompson, Public Works Director
ATTAC]tMENTS: l) Letter from Herb Moniz, City Manager, San Kamon
2) Original Letter from Jean Bolger Requesting Sound Study
3) Location Map
RECOMMENDATION://~ Receive report and provide direction, if needed
FINANCIAL STATEMENT: The estimated cost of an acoustical study is $5,000. The
construction cost for an approximately 1,200' soundwall is conservatively estimated at just over
$100,000. This estimate was made without any preliminary investigation and does not include the cost of
design, bidding, or obtaining easements.
DESCRIPTION: At the April 6th meeting, the City Council received a written request
from Mrs. Jean Bolger of 7609 Ashford Way requesting that the Cities of DUblin and San Ramon
undertake a joint acoustical study to determine whether a soundwall is warranted for Alcosta Boulevard
between Davona Drive and Bandon Drive. The Council requested that Staff contact the City of San
Ramon to determine its position regarding the study and possible construction of the soundwall.
Attachment 1 is the response received from the City of San Ramon. This letter essentially states that the
City of San l~amon does not perceive any responsibility toward a study or construction of a soundwall and
has, in fact, removed a project to construct such a wall from its Capital Improvement Program. It appears
from traffic volume data that has been COllecied'by tl:i'e-c'ii~; ~6/'~Si/fi'R-~6h-that ~he Average Daily Traffic
on Alcosta Boulevard increased about 12.4% between 198-9 and 1997 (approximately 1.5% per year). It
was further stated that this increase was "wkhin the range of typical patterns" and did not indicate a
sudden increase from new development.
While the City of San Kamon WoUld assist the City of Dublin by providing data toward a study or in
obtaining permits for construction, no financial assistance is being offered at this time.
Staff recommends that the City Council receive the information and provide direction as desired.
,/'~' COPIES TO: Herb Moniz, City of San Karnon
Jean Bolger, 7609 Ashford Way
ITEM NO. __~
g:Xagenmis cksoundwall2
, RECEIVED
.]u t 3 0 1999
CITY OF DUBLIN
CITY OF SAN RAMON 2222 CAMINo KnMO
RO. Box 5148
SAN RAMON, CALIFORNIA 94583-1350
P}iON£: (925) 275-2200
FAX: (925) 866-1436
E-MAIL: sanramon~,ci..~an-ramon.ca.u$
.Tune 25, 1999
Mr. Richard C. Ambrose, City Manager
City of Dublin
PO
Dublin, CA 94568
SUBJECT: Sound Study/Soundwall on the South Side of Alcosta Boulevard
REF: Letter from the City of Dublin to the City of San Ramon requesting SoundwaI1
Study
Dear R/ch:
Thank you for your letter of April 7, 1999 regarding the City of Dublin's desire to conduct a sound
study for the possible construction of a soundwall along Alcosta Boulevard between Davona Drive
and Bandon Drive, for the benefit of Dublin residents in that vicinity. At this time, we do not see a
role for the City of San Ramon in the preparation of the sound study, which you suggest, nor in the
construction of a soundwall in this location.
The City Council of the City of San Ramon on June 8, 1999 approved the Annual Program o£
Services for Fiscal Year 1999/2000. The Capital Improvement Pro,am is included as part of the
'Annual Program of Services. The City Council approval included a recommendation of the Finance
Committee that the Al_costa/Kimball Wall Project (CIP 8633) be removed from the Capital
Improvement Pro,am.
In your letter you state, "The request is based on increased traffic from new development, primarily
in the City of San Ramon." However, at th/s time we do not believe this statement is supported by
the factual situation. In fact, this statement is based on several assumptions, which may not be
valid:
· That ~raffic volumes in this area have increased significantly.
· That ambient noise levels in this area have increased significantly.
· That any tragic or noise increases are attributable to "traffic from new development".
· That this "new development" is primarily in the City of San Ramon.
We have reviewed the historical record of traffic volumes on Alcosta Boulevard in this area, and
find that volumes on that street have increased 12.4% from 1989 to 1997; from approximately
25,100 daily trips (Al)T) in 1989 to 28,200 ADT in 1997. This is an average annual increase of
1.5%. This rate of growth in traffic volumes is within the range of "typical" patterns, and does not
indicate a sudden increase attributable to new development". Further, the increase in traffic
volumes on Alcosta Boulevard during this period might be attributed to new development in both
Dublin (e.g. East Dublin) and San Ramon.
If the City of Dublin wishes to conduct a sound study, or construct a soundwall in this area, we will
assist you in obtaining any necessary permits, etc., from San Ramon. We will also make any of our
traffic counts or other data available for your use. We appreciate your efforts on behalf of your
resident, and offer our staff's assistance to help Dublin construct its residents' soundwall in the
most expeditious manner. Please feel free to call me when you initiate your sound study and/or
construction of a soundwall in this area.
Sincerely,
Herb Moniz
City Manager
G:\engXltr\99rambrose.001
- RECE VEB
Jean Bolger C~t! I ~,,'
7609 Ashford Way
Dublin, CA 94568
M~ch 5, 1999
Rich Ambrose
City Manager
100 Civic Plaza
Dublin, CA 94568
Herb Moniz
Ci~ Manager
2222 Cam/no Kamon
San Kamon, CA 94583
Re: Potential Sound Wall
Dsm- ~. Arnbrose and Mr. Moniz:
I m-n ~n-iting as a representative of all the residents who live directly behind the Union 76
gas station and 7-11 convenience store on .~costa Boulevard, which borders be~w~,een
Dublin and San Ramon. The residents of this community are concerned
wi~D the
increased noise level generated by new developments within this area.
As you are aware, there has been a significant mount of new development along the
southern end of .4Jcosta Boulevard, including but not limited to the m,o new housing
developments and shopping center near the corner of :~lcosta Boulevard and Village
Pm-k-~-ay. The increased noise level generated by these projects has created a significant
noise impact to the older residential neighborhoods tn the vicinity. It appears that the
City of San Ramon mitigated against these noise impacts through the addition of new
sound walls which ex-tend from the n6rrh bound entrance ofi-680 to Stage Coach Road.
As a result of this increased noise level, we would like to make a formal request that the
C~ of Dublin and the City of San Ramon join efforts to conduct an acoustical study on
the aforementioned area, to determine the feasibility of constructing a sound wall
ber~:een the 7-I1 and Union 76 properties and the older neighborhood in which We live.
We feel this sound wail should be similar in design and height to the walls constructed
for neighboring properties along A]costa Boulevard. We m-e confident that this study will
identify a dramatic increase in noise levels since the rime the wood fence was o~nalty
~ ~ ' = sound wail,
inr~,zlled behind the 76 station and the 7-11 propeffies. We are r~qu~sUn= a
because we feel the project planning of the new development occurring coupled wkh the
ex/~ing measures in place to alleviate sound between residential and commercial
development in this area, overlooked our neighborhood and the increased level of noise
~;nich resulted from these recent developments.
March 5, 1999
Page 2 ~
The construction of the new sound wall in this area, would aid in the redu&ion of the
current noise impact our neighborhood endures and further mitigate future cumulative
noise impacts from other potentially proposed developments within this area (i.e.
Dougherty Valley Development off Old Ranch Road and other proposed infill projects),
further, the addition of this leg ora sound wall would complete the recent beautification
of the lower end of Alcosta Boulevard.
We would tike to thank you in advance for the time and effort you will endure reviewing
this matter, and we look forward to discussing this matter further with both jurisdictions.
Please contact me, Jean Bolger, during the day at (925) 314-3307 or in the evening at
(925) 828-4980 to inform me of what role your jurisdiction will play in resolving this
maner.
$in:erely,
Cc: Dkector of the City of San Ramon Planning Department
Director of the City of Dublin Planning Department
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