\ii Const ruct ion & Inspec tions Public Comment Meeting on the - - PowerPoint PPT Presentation

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Seattle Department of

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Construction & Inspections

Public Comment Meeting on the Major Public Project Construction Noise Variance Application for the WSDOT SR 520/1-5 Express Lanes Connection Project.

Thursday, August 1, 2019 5:30 - 7:30p.m.

Queen City Yacht Club

2608 Boyer Ave E, Seattle, WA

5:30 p.m. "Comment Sign-up" City of Seattle staff will be available before the meeting begins to provide and discuss background information on the proposed Noise Variance.

• For questions about the Major Public Project Construction Noise Variance process, look for Seattle Dept. of

Construction & Inspections staff (wearing SDCI ID-Badges).

• For questions about the SR 520/1
• 5 Express Lanes Connection Project, or WSDOT's noise variance application,

look for SR 520 project staff (wearing WSDOT nametags). 5:45 p.m. Welcome/Introductions (Penny Mabie). Presentations: Major Public Project Construction Noise Variance process & next steps

• (Dan Powers, SOC/, Noise Control Specialist)

Project overview

• (Suryata Halim and Lawrence Spurgeon, SR 520).

6:30 p.m. Public comment period begins (Penny Mabie). 7:30 p.m. Close.

Major r Public c Project t Construction n Noise e Variance e

Public Meeting

SDCI - August 1, 2019

AGENDA

• Major Public Project Noise Variance
• Exterior Sound Level Limits
• Granting a Noise Variance

– Part 1

• Granting a noise Variance

– Part 2

• Criteria for Approval
• Next Steps in the Process
• Public Comment
• Questions

MAJOR PUBLIC PROJECT NOISE VARIANCE

• This is a permit process for large public projects to:
• Offer flexibility in construction hours and activity
• Limit traffic impacts related to construction activity during

normal hours

• Reduce duration of the overall construction projects
• Manage noise impacts during evening hours

Dis istrict t of

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Sound nd Sou Source e Dis istrict t of

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ceiv ivin ing g Prop

• pert

rty y

Residential Commercial Industrial (dB(A)LEQ) (dB(A)LEQ) (dB(A)LEQ)

Residential 55 57 60 Commercial 57 60 65 Industrial 60 65 70

EXTERIOR SOUND LIMITS

EXTERIOR SOUND LIMITS

• Construction normally occurs 7am – 10pm (Mon-Fri)

and 9am – 10pm (Weekends & Legal Holidays)

• In general, the Seattle Noise Ordinance allows noise

to exceed sound limits by 25 decibels (averaged) during normal construction hours

• After 10pm, those exceedances go away
• This project has requested relief from noise limits

described in the noise ordinance and WSDOT will be presenting their project tonight

GRANTING A NOISE VARIANCE – PART 1

• SDCI Noise Abatement group may grant variances

necessary for nighttime construction activities such as:

• Allowing tower cranes and oversized equipment that

have limited access during normal working hours

• Utility work that requires shutting off essential services

to a business and/or households

• Standards for granting a noise variance state

(SMC 25.08.590):

• The noise occurring or proposed to occur does not

endanger public health or safety

• The applicant demonstrates that the criteria required for

the variance are met

GRANTING A NOISE VARIANCE – PART 2

• In reviewing all variance applications, the Noise

Abatement Group reviews the information provided that justifies the need for a variance:

• Whether the applicant’s information and analysis is

accurate and complete

• The type of sound levels proposed by the variance
• The proposed times and duration of the sound
• The topography and population density of the area
• Whether the public health and safety is endangered
• Whether proposed noise mitigation measures are

likely to be effective

CRITERIA FOR APPROVAL

• The City may grant a Major Public Project Construction

Noise Variance (MPPCNV) to provide relief from the exterior sound limits only to the extent the applicant demonstrates that compliance with the levels would:

• Be unreasonable in light of public/worker safety or cause

the applicant to violate other applicable regulations, including but not limited to regulations that reduce impacts on the transportation infrastructure or natural resources; or

• Render the project economically or functionally

unreasonable due to factors such as financial cost of complying for the duration of the major public project

NEXT STEPS IN THE PROCESS

• The comment period has been

extended to accept comments through August 2nd, 2019

• The decision will be published in The

Seattle Times and our Land Use Information Bulletin

• The appeal period takes place during

the first 10-days of the waiting period

PUBLIC COMMENT

Application #6733975-NV

• We want to hear your comments! Please choose
• ne of the following three options:

– Make a verbal comment tonight by signing up

• n the “Comment Sign-Up Sheet” located at

the sign-in table near the entrance. Tonight’s comment period will be starting after the presentations conclude. – Provide a written comment tonight by filling

• ut a comment card located at the back of the

room. – Send an Email to: PRC@seattle.gov

*As a reminder, the comment period ends on August 2, 2019

CONTACT US

SDCI Noise Abatement Group

• james.dasher@seattle.gov
• anthony.jagow@seattle.gov
• dan.powers@seattle.gov
• dan.goodman@seattle.gov

206-615-1190 www.seattle.gov/sdci

August 1, 2019

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SR 520/I-5 Express Lanes Connection Project

City of Seattle Public Meeting on WSDOT’S Major Public Project Construction Noise Variance application

Penny Mabie Meeting Facilitator Suryata Halim, P.E. SR 520 / I-5 Project Manager Lawrence Spurgeon SR 520 Program Environmental Manager

MPPCN MPPCNV V app ppli lica cation tion key ey st step eps

May 29, 2019 ✓ WSDOT hosted an informational public meeting July 2019 ✓ WSDOT submitted MPPCNV application to the Seattle Department of Construction and Inspections with a Noise Management and Mitigation Plan ✓ SDCI published WSDOT’s application online for public review and began 4-week public comment period August 2019 ❑ Tonight: SDCI hosts a public meeting on WSDOT’s application Summer/Fall 2019 ❑ SDCI publishes decision on SR 520 / I-5 Project MPPCNV application ❑ 10-day appeal period begins if variance is issued 2020:

14

❑ If needed, project contractor submits updates to the Noise Management and Mitigation Plan in advance of construction

SR SR 52 520 0 Res est t of

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the he Wes est t pr projec

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t over erview view

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Remaining SR 520 improvements in Seattle:

Note: Project dates are estimates and subject to change

SR SR 520 520/I /I-5 Exp 5 Expres ess s Lan Lanes es Con Connec nection tion Pr Project

• ject

Estimated start: 2020 with approx. 3-year construction duration

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B C

Key project features A new, reversible transit/HOV ramp between SR 520 and the I- 5 express lanes Restriped I-5 express lanes to retain the existing four lanes while adding a new transit/HOV lane A modified Mercer Street ramp, providing a reversible connection with the I-5 express lanes

SR SR 520 520 night nighttime time con constr struct uction ion wor

• rk

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Why is nighttime work necessary?

• SR 520/I-5 Project construction during nighttime hours is necessary in order to:

– Provide a safe work environment for the contractor and traveling public – Avoid adding to existing congestion on SR 520 and I-5 – Minimize impacts to the community and cost to taxpayers caused by extended project duration and significant daytime traffic impacts When would the variance be applicable?

• During nighttime construction hours of the SR 520/I-5 Project, defined as 10 p.m. to 7

a.m. on weekdays, and 10 p.m. to 9 a.m. on weekends and legal holidays

• The I-5 express lanes are closed nightly which allows for construction activities to
• ccur without impacting highway operations

SR 520 project work site at night

Wha hat t we he e hear ard d fr from th

• m the

e co commun mmunity ity

Questions and comments about key topics:

• Clarification of types of construction

activities anticipated for nighttime construction

• Noise-mitigation measures to reduce

nighttime construction-noise impacts

• How nighttime construction noise limits will

be monitored and enforced

• Construction noise impacts for residents in

the vicinity of the SR 520/I-5 interchange

• How WSDOT property under I-5 will be

used during construction

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May 29, 2019 SR 520/I-5 Project information session

What’s included in WSDOT’s application?

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• Project descriptions and proposed construction

activities

• WSDOT’s baseline noise measurements and

proposed nighttime noise limits for the SR 520/I-5 Project

• A Noise Management and Mitigation Plan.
• An overview of planned public outreach and

process to resolve noise complaints during SR 520/I-5 Project construction

• How construction noise will be monitored and

how the contractor will comply with MPPCNV requirements

SR SR 520 520/I /I-5 Pr 5 Project

• ject con

constr struction uction activities activities

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• WSDOT used anticipated nighttime

construction activities to conduct noise modeling for the project

• WSDOT’s application requests a

limited number of nights with impact work in order to complete critical activities such as: ‒ Excavation of work areas ‒ Roadway and structure demolition and removal

• WSDOT has developed a Noise Management and Mitigation Plan. If needed, the

project contractor will submit any updates to the plan prior to construction

• Nighttime construction activities are

not expected to occur continuously

• n all nights for consecutive weeks,

and it is likely there will be breaks in the activities

SR 520 project nighttime construction work

Proposed limits in WSDOT’s application

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• WSDOT’s application requests the

following for nighttime noise levels and activities within the project area:

– A limit of six decibels higher than the current hourly averages – A three-year variance, to cover the estimated 24-36 months of construction activities anticipated for the project

• Noise monitoring and compliance

requirements and procedures

Noise analysis and proposed limits in WSDOT’s application

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• WSDOT’s application proposes limits for nighttime noise levels and activities within the

project area: – A limit of six decibels higher than the existing hourly averages

• Noise monitoring and compliance requirements are included in the application

Baseline noise monitoring site locations

• Sound levels measured during the late night hours (midnight to 5 a.m.) provide the most

conservative representation of existing baseline conditions

• Noise measurement sites were selected based on their proximity to construction activities

Noise Noise mon monitor itoring ing an and d co complianc mpliance e

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WSDOT will: – Provide an on-site independent noise inspector who reports all non-compliance events directly to SDCI – Continue comprehensive and ongoing public involvement activities – Provide a 24-hour construction hotline The project contractor will: – Meet the requirements of the noise variance – Update the Noise Management and Mitigation Plan, if needed – Install noise monitor devices on site – Monitor noise continuously during nighttime construction activities The independent noise inspector will:

Example of noise monitor device

‒ Monitor project contractor compliance with the noise variance ‒ Respond to all noise complaints, and modify or stop project work if necessary

MPPCN MPPCNV V app ppli lica cation tion key ey st step eps

May 29, 2019 ✓ WSDOT hosted an informational public meeting July 2019 ✓ WSDOT submitted MPPCNV application to the Seattle Department of Construction and Inspections with a Noise Management and Mitigation Plan ✓ SDCI published WSDOT’s application online for public review and began 4-week public comment period August 2019 ❑ Tonight: SDCI hosts a public meeting on WSDOT’s application Summer/Fall 2019 ❑ SDCI publishes decision on SR 520 / I-5 Project MPPCNV application ❑ 10-day appeal period begins if variance is issued 2020:

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❑ If needed, project contractor submits updates to the Noise Management and Mitigation Plan in advance of construction

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PUBLIC COMMENT MEETING GROUND RULES

• Please focus your comments on the noise variance application for WSDOT’s

SR520/I-5 Project.

• If you wish to provide an oral comment, please sign-up on the comment

sign-in sheet located at the sign-in table near the entrance.

• Please remain quiet so that others can hear and please leave the room to

have side conversations. Please do not interrupt anyone while they are speaking.

• Please turn off or silence cell phones and other devices.
• We ask that items that could be disruptive to other attendees (e.g. stick

mounted signs, noisemakers, etc.) be stored outside the room/along the perimeter of the room during the meeting.