HomeMy WebLinkAboutPermit L99-0026 - WA STATE DEPARTMENT OF TRANSPORTATION / NOISE VARIANCE I-5/SR-518 - SPECIAL PERMISSIONL99 -0026
WSDOT: NOISE
VARIANCE
I -5 /SR 518
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• WWashington State
Arr Department of Transportation
Sid Morrison
Secretary of Transportation
Northwest Region
15700 Dayton Avenue North
P.O. Box 330310
Seattle, WA 98133-9710
(206) 440-4000
August 18, 1999
Michael Jenkins
•Assistant Planner
City of Tukwila
6300 Southcenter Boulevard
Tukwila, WA 98188
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•
Temporary Noise Variance Request
State Route 518 B-Line Ramp Paving
Contract 5732 (OL 3058)
Noise Class Roster
Dear Mr. Jenkins:
Attached please find the "Noise Class" roster of state and contractor personnel who were
in attendance. The class was given August 16, 1999 in accordance with the City of
Tukwila stipulations for the subject project.
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Attachment
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Sincerely,
BRUCE P. F
Air Quality and Special Studies
Program Manager
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A F F I D A V I T
4/ e'GG4 hereby declare that:
O F D I S T R I B U T I O N
Notice of
LI Notice of
Public Hearing
Public Meeting
0 Board of Adjustment Agenda
Packet
0 Board of Appeal Agenda
Packet
Planning Commission
Packet
LiShort Subdivision
Packet
Agenda
Agenda
.D Notice of Application far
Shoreline Management Permit
QShoreline Management Permit
Determination of Non -
significance
fl Mitigated Determination of
Nonsignificance
C
Determination of Significance
and Scoping Notice
Notice of Action
Official Notice
was mailed to each of the following addresses on
Name of Project Signature
File Number Len --co;.4
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City of Tukwila John W. Rants, Mayor
Department of Community Development Steve Lancaster, Director
DETERMINATION
BY THE DIRECTOR OF THE DEPARTMENT OF COMMUNITY DEVELOPMENT
REGARDING A NOISE VARIANCE
Prepared June 21, 1999
FILE NUMBER:
APPLICANT:
REQUEST:
LOCATION:
ACREAGE:
COMPREHENSIVE
PLAN DESIGNATION:
ZONING DISTRICT:
SEPA
DETERMINATION:
PUBLIC NOTICE:
STAFF PLANNER:
ATTACHMENTS:
L99 -0026 (WSDOT Noise Variance for I -5 /SR -518 Interchange
Improvements)
Bruce Farrar, WSDOT Acoustical and Air Quality Engineer on
behalf of the State of Washington Department of Transportation.
Approve a 14 day, temporary noise variance to allow night paving,
reconstruction and safety improvements on two access ramps.
Construction would occur between July 1, 1999 and October 15,
1999.
Access ramps are located in the I -5 /SR -518 freeway interchange.
Not applicable.
This roadway is designated as a "Freeway" in the Transportation
Element.
Not applicable.
SEPA exempt.
None.
Vernon Umetsu, Associate Planner
A.
B.
C.
Washington State Dept. of Transportation Temporary Noise
Variance Request (including location map).
Modified Noise Variance Request (from 15 days to 14
days).
Estimated Noise Impacts at Selected Locations.
6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431-3670 • Fax (206) 431-3665
`-1 ram
L99 -0026: WSDOT Temporary Noisa variance for I -5 /SR -518 Access Ramp Improvements
Page 2
FINDINGS
BACKGROUND
The Washington State Department of Transportation (hereafter referred to as WSDOT) requests a
14 day, "temporary noise variance" to allow night paving, reconstruction and safety
improvements on two access ramps. Construction would occur between July 1, 1999 and
October 15, 1999.
Two previous "technical noise variances" to allow similar extensive road construction at night in
this immediate area were previously granted in 1994 and 1997. Noise levels at receiving
properties were higher than estimated in this variance application and were allowed to occur for
over four months. No noise complaints were received.
Construction noise is exempt from regulation between 7:30 A.M. and 10 P.M.' but otherwise
regulated by TMC 8.22. The proposed construction noise would occur during regulated hours
and exceed the allowed noise level of 50 dB(A) by 2 to 15 dB(A) at exterior areas.2.
Construction could only occur during regulated hours with a noise variance from the Director of
the Department of Community Development'. The requested "temporary variance" is a
ministerial decision not requiring a public hearing'.
VICINITY /SITE INFORMATION
1. Project Description: The applicant's request for a technical variance is shown in
attachments A, B and C.
WSDOT proposes to repave, reconstruct and add various safety improvements to three
access ramps at the I -5 /SR -518 freeway interchange. Ramp work will be almost all
confined by steep earth banks or concrete walls, as the ramps pass under various freeway
sections. Construction would require a weekend closure of the B -line ramp and nightly
closures of the B and G line ramps between July 1, 1999 and October 15, 1999.
Work at the B -line and G -line ramps are expected to generate worst case noise levels of
90 dBA @ 50 feet (Attachment B). This construction noise would encroach into the
night period when such noise is subject to maximum sound levels of 50 dBA (op. cite.).
Maximum sound levels at residential receiving properties are estimated at 52 -60 dBA for
'TMC 8.22.160(4).
2Assumes that SR -518 is an "industrial" area and recognizes all receiving areas as residential. Such a
situation allows a maximum 50 dB(A) noise level (TMC 8.22.040 and 050(1)).
3TMC 8.22.190(A) and 8.22.020(1).
4TMC 18.22.180.
\\ TUK2\ SYS\ HOME WERNON \99 \WSDTVAR \WSDTVAR.DOC
L99 -0026: WSDOT Temporary Noise v ariance for I -5 /SR -518 Access Ramp Improvements
Page 3
residences in the Crystal Springs Park area and 55 -65 dBA for residences along Macadam
Road South (Attachment B).
2. Existing Site Development: The access ramps are existing one and two lane underpasses
which descend from the at grade road to below grade segments.
3. Surrounding Land Use: Affected area land use is largely defined by the quadrants created
by the freeway interchange. Commercial uses dominate the northwest and southeast,
while single and multi - family residences dominate the southwest and northeast
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DECISION CRITERIA
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A "temporary noise variance" may be issued by the D.C.D. Director, acting as the g
"administrator," pursuant to TMC 8.22.180(B): "...at the reasonable discretion of the u. <`
administrator." The criteria to grant or deny a temporary noise variance is shown in bold and = w
followed by staff discussion. 1-
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1. No variance shall be granted pursuant to this chapter until the administrator has w o
considered the relative interests of the applicant, other owners or possessors or (sic)
property likely to be affected by the noise, and the general public. (TMC 0 to
8.22.180(C)) ;o I
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a. Construction noise is exempt from regulation except between 10 p.m. and 7 a.m. v �.
During those times, the proposed freeway construction noise impacts on 1 0:,
residential receiving districts is limited to 50 dB(A) per TMC 8.22.050(1)5.
b. "No sound source specifically exempted from a maximum permissible sound level
by this chapter shall be a public nuisance noise or public disturbance noise..."
(TMC 18.22.140). This applies to the proposed freeway construction during non-
regulated hours.
Noise Standards
Noise Impacts
c. EPA thresholds of acceptable noise were recognized and incorporated into the
"Tukwila Comprehensive Plan Environmental Impact Statement" (October,
1995:pg.47) as follows:
55 or less Levels are generally acceptable; no noise impact is generally
associated with these levels.
5This assumes that the freeway is an "industrial" "District of Sound Source." A commercial district is limited
to 47 dB(A) while a residential source is limited to 45 dB(A) (TMC 8.22.150(1)). No other adjustments per
8.22.150(2) or (3) seem to be appropriate.
\ \TUK2 \SYS\ HOME \VERNON \99 \WSDTVAR \WSDTVAR.DOC
L99 -0026: WSDOT Temporary Noise v ariance for I -5 /SR -518 Access Ramp Improvements
Page 4
55 -65 dB(A) Adverse noise impacts exist; this measurement represents the
lowest level possible without adverse significant impact.
65 -70 dB(A) Significant noise impacts exist; allowable only in unusual cases
where lower levels are not possible.
over 70 dB(A) Levels of unacceptability for public health and welfare
considerations.
d. In general, residential buildings with single pane glass windows readily reduce
outside noise by 20 dB(A). Residences with double pane glass can reduce noise
levels by 25 dBA. This would mean occasional maximum noise levels as follows:
On -site Receiving Area
Crystal Springs
Neighborhood
Macadam Road
Neighborhood
Outside Noise Level.
52 -60 dB(A)
55 -65 dBA
Inside noise level with single pane
windows (20 dB(A) reduction).
32-40 dB(A)
35 -45 dBA
Inside noise level with double pane
windows (25 dB(A) reduction).
27 -35 dB(A)
30 -40 dBA
c. The overwhelming majority of area residences were built prior to 1984, before the
requirement for double pane windows.
d. Maximum noise levels, if attained, would last for some fraction of an hour, 2 -3
times per night, based on similar road construction practices.
e. The proposed construction noise is exempt during the day. These noise levels
would impact receiving properties equally during the day, when residents are
more likely to be outside
f. The City of Tukwila has granted two technical noise variances issued (L94 -0068
and L96- 0080). Estimated noise levels at residential receiving sites were much
higher than projected here. No noise complaints were received.
Congestion Impacts
g.
The construction would require significant lane closures resulting in significant
and dramatic traffic congestion. Late night closure would minimize congestion
impacts.
h. Day -time congested traffic movement would expose vehicle occupants to very
high levels of noise from adjacent construction equipment, as they slowly traverse
the construction zone.
\ \TUK2 \SYS\ HOME \VERNON \99 \WSDTVAR \WSDTVAR.DOC
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L99 -0026: WSDOT Temporary Noise variance for I -5 /SR -518 Access Ramp Improvements
Page 5
2. The noise occurring or proposed to occur does not endanger public health or safety;
(TMC 8.22.180(C)(1))
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The anticipated maximum noise levels are below the EPA guidelines for avoiding , `11-:
significant human health impacts, as shown in a comparison of Finding l c and l d. '� L
3. The "...activity, use, process or equipment...in accordance with rules and v p
regulations, the does not annoy a substantial number or the people and does not co W
endanger public health or safety." (TMC 8.22.18.22.180(C)(2) and 190(B)) w I
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a. It is explicitly recognized that higher noise levels are a health hazard and that W o
some individuals are more sensitive to noise impacts than others. It may be g
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appropriate for the applicant to mitigate noise impacts on sensitive individuals to u 4
a greater extent than is done for the general public, when the basic 50 dB(A) noise I 0
standard is exceeded. Z x
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b. In general, a change of 10 dB(A) reflects a doubling of the perceived sound level. z I -
c. The alternative of daytime construction (when the proposed freeway construction 0 N'.
noise is exempt) would shift the noise levels from the night to the day, when .0 f-'
occupants at receiving sites are more likely to be outside and be more likely to = w
perceive significant impacts. The impacts of extreme traffic congestion may also I-
spill over to residential and commercial areas. • z
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d. Staff conditions to monitor and implement mitigation programs as needed have o i
been reviewed with the applicant. They have been accepted and incorporated into z
the construction documents.
CONCLUSIONS
A. The balance between the relative interests of the applicant, other property owners and the
general public seem to be served by granting the variance given the following:
a. maximum noise levels will be significantly reduced indoors to an acceptable EPA
noise level and be of a short duration and
b. not granting the variance would still subject the receiving properties to the same
level of noise impact between 7 a.m. and 10 p.m., result in an extreme level of
congestion between those hours, and the applicant has committed to a system of
24 hour complaint resolution.
B. The noise occurring with the variance is not anticipated to significantly endanger public
health and safety, based on estimated noise levels at the receiving properties, EPA
\ \TUK2\SYS\ HOME \VERNON \99 \WSDTVAR \WSDTVAR.DOC
L99 -0026: WSDOT Temporary Noise variance for I -5 /SR -518 Access Ramp Improvements
Page 6
estimates of significant noise levels, the applicant's previous ability to avoid noise
complaints and the proposed conditions of approval.
C. The above findings do not indicate an available, practical means to prevent, abate, or
control the noise level below what is proposed.
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DETERMINATION _1 o
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APPROVED subject to the following conditions: F'
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1. All residents and businesses within 500 ft. of the project site shall be mailed notice of 2
construction with pertinent information, as approved by the Director, at least two weeks � a
prior to the first night of construction. Notice shall be submitted to the Director at least 7 N d
days prior to being printed. I- i
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2. An advertised 24 hour complaint hot line shall be established and have immediate W O
connection to a WSDOT on -site inspector who has been instructed on this variance and 2 D.
has the authority to respond to complaints. Response shall include authority to evaluate v ° ca
the level of impact, take equipment out of service, and otherwise resolve the complaint ,o }— (see Condition 8). ' :w w
3. Maximum noise levels shall be as presented, +1- 2dB(A). L z
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4. All equipment shall be tested to ensure that maximum noise thresholds and characteristics 0 I
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Based on the above Findings and Conclusions, the proposed 14 day, temporary noise variance is
incorporated in the noise analysis are as anticipated.
5. Night construction activities shall be periodically monitored to ensure that the identified
maximum sound levels are not exceeded and are of a short duration.
6. All jack hammering will be done during day -time hours, except for chipping hammers
whose noise is rapidly attenuated.
7. All complaints shall be forwarded to the Director as soon as possible the following day.
7. All complaints shall be resolved within 24 hours of WSDOT receipt, based on the
provisions of this variance. City staff shall be available to assist in resolution.
8. Complaint resolution shall include, but not be limited to:
a. site visits and monitoring,
b. withdrawal of equipment not satisfying the identified maximum noise levels or
characteristics and
c. offering to move the residents to a City approved facility. A list of facilities shall
be submitted for City approval prior to night -time construction. Facilities shall be
safe, clean, and have general equivalence to a residence.
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L99 -0026: WSDOT Temporary Noise v ariance for 1 -5 /SR -518 Access Ramp Improvements
Page 7
9. Receipt of 10 or more complaints within a 48 hour period shall justify modifying or
revoking the provisions of this variance.
10. Take any alternative measures that the Director may prescribe to mitigate noise impacts
per TMC 18.22.190(A), based on the provisions of this variance.
Steve Lancaster
Director
•
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Washington State
�; Department of Transportation
Sid Morrison
Secretary of Transportation
Vernon Umetsu
Associate Planner
City of Tukwila
Suite 100
6300 Southcenter Boulevard
Tukwila, Wa. 98188
Dear Mr. Umetsu:
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Northwest Region
15700 Dayton Avenue North
P.O. Box 330310
Seattle, WA 98133 -9710
(206) 440-4000
March 29, 1999
RECEIVED
MAR 3 0 1999
COMMUNITY
DEVELOPMENT
SR 518 MP 3.54 Vic.
Ramp Paving
Projected Noise Levels
OL 3058
Per our phone conversation of March 26, 1999, I offer the following noise level
projections that will result from nighttime work relative to the subject project. The
projected noise levels are worst case peak levels (90dBA a 50 ft.) and will be the
exception rather than the rule.
Residences at Crystal Springs Park area: 52 - 60 dBA (exterior). Distance attenuation,
site geometry, and interruption of line of site between receivers and noise source will
mitigate much of the planned nighttime construction activity related noise.
Residences along Macadam Rd. South: 55 - 65dBA (exterior). Again, distance
attenuation, site geometry, and interruption of line of sight between receiver and noise
source will be mitigation influences.
If you need further information or have any questions or comments, please call me at :
206 -440 -4546.
BPF
Sincerely yours,
Bruce P. Farrar
Air Quality & Special Studies
Program Manager
VIWashington State
A Department of Transportation
Sid Morrison
Secretary of Transportation
Vernon Umetsu
Associate Planner
City of Tukwila
Suite 100
6300 Southcenter Boulevard
Tukwila, Wa. 98188
A-Trarpitcg'6,
Northwest Region
15700 Dayton Avenue North
P.O. Box 330310
Seattle, WA 98133 -9710
(206) 440 -4000
June 11, 1999
RECEIVED
JUN 14 1999
COMMUNITY
OL 3058
SR 518
Ramp Paving
Variance Night Change
Dear Mr. Umetsu:.
Per our phone conversation please allow me to submit a change to the original variance
request for the subject project (letter dated 4/5/99) from 15 nights to 14 nights. I
appreciate your help and advice on this matter. If you have any comments or questions
please call me at 206.440.4546.
Sincerely,
BPF
cc: File
Bruce P. F.'rar
Air Quality & Special Studies
Program Manager
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fig Department of Transportation
Washington State
Sid Morrison
Secretary of Transportation
Michael Jenkins
Assistant Planner
City of Tukwila
6300 Southcenter Boulevard
Tukwila, WA 98188
Dear Mr. Jenkins:
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Northwest Region
15700 Dayton Avenue North
P.O. Box 330310 ---,
Seattle, WA 98133-9710 `'
(206) 440-4000
March 5, 1999
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SR 518 MP 3.54 Vicinity
B -Line Ramp Paving
OL 3058
Temporary Noise Variance Request
The Washington State Department of Transportation (WSDOT) is planning to construct
paving, drainage, and guardrail at three locations as shown on the attached vicinity map
and as described below:
B -Line Ramp - EB SR 518 to NB SR 5
A portion of this ramp will be reconstructed by removing the existing asphalt
concrete pavement and base course, installing subgrade drains, and replacing the
full depth pavement section. The existing geometry, alignment and striping on the
ramp will not be changes. Additional Work will include saw cutting, planing,
installation of geotextile fabric, signing, guardrail, and miscellaneous traffic items.
The B -line ramp constitutes the majority of work for the entire project.
G -Line Ramp - NB SR 5 to WB SR 518
The existing left shoulder will be excavated and replaced with full depth asphalt
concrete pavement and the full width of the ramp will be overlayed with Asphalt
Concrete Pavement (ACP) for a portion of the ramp. The existing geometry,
alignment and striping will not be changed. This work will also include
sawcutting, planing, crack sealing, and miscellaneous traffic items.
LS -Line - EB SR 518 to NB SR 405
Existing guardrail will be repaired and brought up to current design standards from
Station 5 +892 to 6 +165.
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This project will need a weekend closure of the B -line ramp and nightly ramp closures of
both the B -line and the G -line ramps. We estimate that no more than 15 nights will be
necessary to perform the work, 12 nights for the B -line ramp and 3 nights for the G -line
ramp. We expect that allowable night time ramp closure hours will be from 8:00 PM to
5:00 AM. The types of construction equipment used for the night time work may include,
but is not limited to, backhoes, dump trucks, asphalt cutting saws, and pavers.
The WSDOT respectfully requests that the City of Tukwila consider and grant a noise
variance for 15 days from the constraints of Chapter 8.22.050 (A) per the provisions of
Chapter 8.22.180 and 8.22.190 of the Tukwila Municipal Code. The advertisement date
for this project is May 17, 1999. We estimate that the earliest start date will be July 1,
1999, and the latest ending date will be October 15, 1999.
If you should have any questions please call me at (206) 440 -4546 or Joanne Welty at
(206) 440 -4541.
Sincerely,
BRUCE P. FARRAR
Air Quality and Special Studies
Program Manager
Dave Lindberg / Eric Robinson MS 52
Earl Franzen MS 111
Day file
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PLANING BITUMINOUS PAVEMENT
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B -LINE RAMP
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SCALE IN METERS
DESIGNED BY E. ROBINSON
ENTERED BY P. McINNES
REGION
NO
10
STATE
WASH
CHECKED BY E. ROBINSON
PROJ. ENGR. D. LINDBERG
Jot WNW
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REGIONAL ADM. J. OKAMOTO
DATE
DATE
REVISION
BY
CONTRACT NO.
FED.AID PROJ.NO.
ENVIRONMENTAL AND ENGINEERING
SERVICE CENTER
�Washington State
�I/ Department of Transportation
SR 518
MP 3.54 VICINITY RAMPS
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PAVING PLAN
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OF
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