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SR 520 Montlake Project

Noise Monitoring Weekly Report Summary for Monday, December 28, 2020 to Sunday, January 3, 2021

PUBLISHED JANUARY 06, 2021

Monitoring times: Weekdays, 10 p.m. to 7 a.m.; weekends, 10 p.m. to 9 a.m.

How to use this report: This d cument summarizes the weekly nighttime n ise data f r the SR 520 M ntlake Pr ject. In it, y u’ll find:

• Page 1 ‐ Summary f n ise levels rec rded ab ve the limits all wed under the Maj r Public Pr ject

C nstructi n N ise Variance, f r this week and thr ugh ut the pr ject. This includes n n ‐pr ject‐related n ise exceedances

• Page 2 ‐ Map f the pr ject limits and l cati ns f the seven stati nary m nit r l cati ns

• Pages 3 – 9 ‐ Night‐by‐night n ise rec rdings f r each f the pr ject n ise m nit rs, al ng with a descripti n f the w rk that

night, c mments received fr m the public regarding Pr ject n ise, and explanati ns f r any n ise limit exceedances and acti ns

taken in resp nse

• Page 10 ‐ L g f public c mments regarding nighttime n ise issues and res luti ns f r the week

WSDOT is sharing this information as per the terms of the Major Public Project Construction Noise Variance (Permit #3030792).

MPPCNV start date: Friday, August 16, 2019

MPPCNV days to date: 507

WEEKLY TOTALS

Nights worked this week (under the MPPCNV) 0

Project related non-compliance this week 0

Nighttime noise issue comments to the project 0

Non-project-related noise exceedances this week 38

PROJECT TOTALS TO DATE

Total Nights Worked (under the MPPCNV) 1 3

Total Project related non-compliance 48

Total noise issue comments to the project 50

Total non-project related exceedances 1998

M ntlake Pr ject MPPCNV Weekly Rep rt Page 1 f 10

Noise Monitoring Locations: the map bel w sh ws the

w rk limits f the SR 520 M ntlake Pr ject and the

l cati ns f the seven stati nary n ise m nit ring sites EXHIBIT 5. CONSTRUCTION AREA AND NOISE MEASUREMENT LOCATIONS

M ntlake Pr ject MPPCNV Weekly Rep rt Page 2 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Monday, December 28, 2020 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 53.4 51.9 49.8 47.4 47.5 48.3 50.2 54.9 58.8 N/A N/A

Site 2 - 2015 E. Roanoke St 78 57.8 5 .1 52.8 51.2 51.9 52.5 55.3 58.8 0.7 N/A N/A

Site 3A - 3810 E. McGilvra St 2 4 .9 4 .1 44. 40.2 40.5 42.0 43.9 47.8 49.9 N/A N/A

Site 4 - 2800 Montlake Blvd E 4.1 2.0 59. 58.5 58.8 58.8 3.0 7.9 71. N/A N/A

Site 5 - 25 5 22nd Av E. 5 55. 54.0 51.0 49.4 49.7 50.5 52.9 5 .4 58.7 N/A N/A

Site - 21 0 E. Hamlin St 3 50.0 50. 49.4 4 . 47.7 48.3 48.9 53.5 55.8 N/A N/A

Site 7 - 2209 E. Lake Wa Blvd 52.2 50.5 47.9 45.7 45.3 4 .4 48.9 53. 57.2 N/A N/A

Site 8 - Portable Between Sites 4 and 3 51.1 51.0 48.9 47.0 47.5 49.1 50.3 54.3 55.5 N/A N/A

Site 9 - Portable Between Sites 1 and 7 58.3 5 .7 53.9 51.0 50.0 50.7 53.5 2.1 5.7 N/A N/A

Site 10 - Portable Between Sites 1 and 7 59.9 57.9 5 .3 53.4 52.3 52. 55. 2.2 .3 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4 and 10 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 3 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Tuesday, December 29, 2020 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 54.4 53.7 50.8 49.9 50.4 50. 53. 5 .9 0.5 N/A N/A

Site 2 - 2015 E. Roanoke St 78 0.5 0.0 5 .8 57.1 5 . 5 .4 58.9 1.8 3.9 N/A N/A

Site 3A - 3810 E. McGilvra St 2 49.0 50.3 4 .2 51.1 48.5 51.4 52.7 54.1 55.2 N/A N/A

Site 4 - 2800 Montlake Blvd E .0 70. 2.0 1. 0.7 0.7 .2 70.9 72.2 N/A N/A

Site 5 - 25 5 22nd Av E. 5 58.7 58.5 55.1 5 .1 55.0 55.5 58.0 0.3 2.4 N/A N/A

Site - 21 0 E. Hamlin St 3 53.0 52.3 50.9 49.5 51.0 49.9 53.1 55.5 57. N/A N/A

Site 7 - 2209 E. Lake Wa Blvd 54.3 54.5 50.8 49.5 49. 49.7 53.0 5 .5 0.0 N/A N/A

Site 8 - Portable Between Sites 4 and 3 55.2 5 .1 51.3 49. 51.8 50.3 54.1 5 . 58.9 N/A N/A

Site 9 - Portable Between Sites 1 and 7 0.0 59. 5 .5 54.0 53.5 54.1 57.2 2.9 7.9 N/A N/A

Site 10 - Portable Between Sites 1 and 7 0.5 59.5 55.7 54.4 53.4 54.4 57.7 3.4 8.0 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4, 9 and 10 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 4 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Wednesday, December 30, 2020 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 5 .5 53. 51.5 50. 49.5 49.2 52.0 54.5 58.8 N/A N/A

Site 2 - 2015 E. Roanoke St 78 0.2 58.0 55.4 5 .3 53. 57.2 5 .3 59.9 3.1 N/A N/A

Site 3A - 3810 E. McGilvra St 2 53.5 52.2 52.2 51.1 50. 52.5 52.0 52.5 52. N/A N/A

Site 4 - 2800 Montlake Blvd E 7.5 5.3 2.5 1.7 1.2 9.4 4.4 8. 70.0 N/A N/A

Site 5 - 25 5 22nd Av E. 5 59.2 57.4 54.9 55.4 52. 5 .8 55.1 57.7 1.3 N/A N/A

Site - 21 0 E. Hamlin St 3 58.0 55.4 52.9 51.7 51.4 51.5 53.9 55.8 5 .8 N/A N/A

Site 7 - 2209 E. Lake Wa Blvd 5 .5 53. 51. 50. 48.9 50.5 51.2 54. 58.5 N/A N/A

Site 8 - Portable Between Sites 4 and 3 58.1 55.5 52.3 52.0 51.8 53.0 54.9 55. 57.2 N/A N/A

Site 9 - Portable Between Sites 1 and 7 1.8 59.4 5 .8 55. 54.1 53.0 55. 1.9 .0 N/A N/A

Site 10 - Portable Between Sites 1 and 7 1.8 59.8 5 .9 55.3 53.1 52.1 55. 1.4 .5 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4, 9 and 10 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 5 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Thursday, December 31, 2020 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 57.0 54.3 54.7 55.9 0.5 49. 49.2 49.1 51.7 N/A N/A

Site 2 - 2015 E. Roanoke St 78 59.5 58.4 58.4 .4 4.7 53.8 53. 55.0 57. N/A N/A

Site 3A - 3810 E. McGilvra St 2 48.5 47.5 49.0 45.7 43.4 42.8 44.1 43.4 45.9 N/A N/A

Site 4 - 2800 Montlake Blvd E 5.9 5.2 .4 70.2 57.5 54.2 55.8 2.7 .8 N/A N/A

Site 5 - 25 5 22nd Av E. 5 57.7 5 . 5 .5 5.0 4.5 52.7 52.4 53.3 55.5 N/A N/A

Site - 21 0 E. Hamlin St 3 5 .0 55.9 5 .4 58.3 52.7 49.5 51.0 49. 51.1 N/A N/A

Site 7 - 2209 E. Lake Wa Blvd 5 .5 53.9 55.3 58.3 2.2 49.8 48.8 49.5 51.8 N/A N/A

Site 8 - Portable Between Sites 4 and 3 5 .9 55.9 5 .4 5 .8 52.5 49.9 51.4 50.8 52.5 N/A N/A

Site 9 - Portable Between Sites 1 and 7 72.5 59.5 0.2 0.4 8.2 55.9 52.8 54. 57.7 N/A N/A

Site 10 - Portable Between Sites 1 and 7 .4 1.1 1.0 0.5 8. 5 .9 53.5 54.8 58.1 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4, 5, 9 and 10 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 6 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Friday, January 1, 2021 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 53.9 51.5 50.2 50.0 45.7 47. 49.0 52.3 53.9 5 .1 5 .8

Site 2 - 2015 E. Roanoke St 78 57.9 5 .3 54.1 52.3 49.9 50.4 52.5 5 .0 58.8 59.7 0.3

Site 3A - 3810 E. McGilvra St 2 49.7 47.5 49.1 48.4 4 .7 49.5 48.3 48.8 51. 53.4 51.7

Site 4 - 2800 Montlake Blvd E 4.8 2.4 0. 58.3 57.2 57.5 58. 4.3 8.1 7. 8.0

Site 5 - 25 5 22nd Av E. 5 5 .8 54.9 52.7 51.3 48.4 49.4 51. 55.1 57.7 58.8 59.0

Site - 21 0 E. Hamlin St 3 55.5 53.2 52.1 50.5 47.8 48.4 51.0 51.9 54.9 5 .9 58.0

Site 7 - 2209 E. Lake Wa Blvd 53.4 51.7 51.1 48.4 45.3 45.7 48.5 52.5 54.1 55.7 5 .9

Site 8 - Portable Between Sites 4 and 3 5 .3 53.1 51.3 51.4 47.2 49.3 51.1 52.9 55.1 57.5 57.8

Site 9 - Portable Between Sites 1 and 7 59.1 57.2 55.9 54.2 50.5 51.5 52.4 58.4 0.1 1.4 3.5

Site 10 - Portable Between Sites 1 and 7 59.8 57.7 5 .1 53.9 50.5 49.1 51.8 58.7 0.2 1.4 3.9

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 7 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Saturday, January 2, 2021 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 58.9 57.2 52.9 50.3 49. 4 .7 48. 49.8 52.2 53.0 57.4

Site 2 - 2015 E. Roanoke St 78 4.7 2.8 57.9 54.1 53.1 51.5 52.7 54.9 57.3 58.7 0.8

Site 3A - 3810 E. McGilvra St 2 0.2 0.4 53.9 48.7 45.9 42.8 43. 45.2 49.1 49.3 52.2

Site 4 - 2800 Montlake Blvd E 8.3 .1 3.0 1.2 58.5 59.5 59. 2.7 .4 .0 7.8

Site 5 - 25 5 22nd Av E. 5 2.7 1.0 5 .3 52.3 51. 49.9 51.1 53.2 55.5 5 .7 59.7

Site - 21 0 E. Hamlin St 3 55.7 5 .7 52.9 51. 49.2 48.8 50.4 51.1 54.8 55.3 57.0

Site 7 - 2209 E. Lake Wa Blvd 58.9 57.5 53.3 50.5 48.2 4 .4 48.5 49.4 52.7 53.7 5 .9

Site 8 - Portable Between Sites 4 and 3 57.8 57. 51.8 50.0 50.8 48.5 50.3 51.8 53.9 55.0 57.3

Site 9 - Portable Between Sites 1 and 7 3.7 2.0 57.5 0.3 53.7 50.9 52.2 54.0 57.3 59.3 3.3

Site 10 - Portable Between Sites 1 and 7 4.7 2.2 58.4 5 .9 54.9 51.7 54.1 55.0 58.1 59.7 4.4

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 8 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 pm to 7 am (weekdays) / 9am (weekends)

The table bel w includes data gathered fr m n ise m nit ring equipment l cated at seven stati nary and three p rtable l cati ns thr ugh ut the M ntlake Pr ject area

Sunday, January 3, 2021 Site Site limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - am am - 7am 7am - 8am 8am - 9am

Site 1 -2449 E. Lk WA Blvd 7 54.9 54.0 55.8 50.0 50. 49.7 53.7 57.8 0.8 N/A N/A

Site 2 - 2015 E. Roanoke St 78 0.3 58. 59.7 57.0 55.3 55.7 59.1 2.1 3.3 N/A N/A

Site 3A - 3810 E. McGilvra St 2 52.5 52.1 54.0 51.2 50.2 51.2 53.5 53. 54.2 N/A N/A

Site 4 - 2800 Montlake Blvd E .2 5.2 3.5 0.0 59.5 1.3 .7 71.0 72.2 N/A N/A

Site 5 - 25 5 22nd Av E. 5 58.7 57.8 58.9 5 .0 54.7 55.1 57.9 0.1 1.2 N/A N/A

Site - 21 0 E. Hamlin St 3 54.2 53. 58.7 49.5 51.1 50. 54.0 57.0 59.4 N/A N/A

Site 7 - 2209 E. Lake Wa Blvd 55.5 54.2 5 .4 50.4 50.0 50.0 53.7 57. 0.1 N/A N/A

Site 8 - Portable Between Sites 4 and 3 5 .3 54.0 5 .2 48. 51.0 49.4 53.9 57.4 59.0 N/A N/A

Site 9 - Portable Between Sites 1 and 7 0.2 58.7 59. 5 .1 54.3 52.3 57.8 5.1 7.4 N/A N/A

Site 10 - Portable Between Sites 1 and 7 0.5 59.3 59.2 53.8 54.3 51.9 58.8 5.5 8.4 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

N nighttime c nstructi n w rk perf rmed.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site(s) 4, 9 and 10 are n t pr ject related. Exceedances are caused by public traffic driving by the n ise m nit rs.

Non-Compliance:

N ne.

Legend

Leq = Leq means the equivalent s und level, which is the c nstant s und level in a given time peri d.

N/A = Time Peri d n t applicable t MPPCNV

Red = N ise Level Exceedance, pr ject related

Blue = N ise level exceedance, n t pr ject related

~ = N Data Available

# = N c ntract w rk . P rtable m nit rs are n t being used (n t needed).

M ntlake Pr ject MPPCNV Weekly Rep rt Page 9 f 10

SR 520 Montlake Project

Major Public Project Construction Noise Variance

NOISE MONITORING - WEEKLY REPORT

Monday, December 28, 2020 to Sunday, January 3, 2021 10 p.m. to 7 a.m. (weekdays)/9a.m. (weekends)

Public Comment Log Date / Time To/From Issue Resolution

N n ise related c mplains.

M ntlake Pr ject MPPCNV Weekly Rep rt Page 10 f 10