SR 520 Montlake Project

Noise Monitoring Weekly Report Summary for Monday, eptember 14, 2020 to unday, eptember 20, 2020

PUBLISHED SEPTEMBER 23, 2020

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: 402

WEEKLY TOTAL

Nights worked this week (under the MPPCNV) 2

Project related non-compliance this week 0

Nighttime noise issue comments to the project 0

Non-project-related noise exceedances this week 15

PROJECT TOTAL TO DATE

Total Nights Worked (under the MPPCNV) 104

Total Project related non-compliance 42

Total noise issue comments to the project 41

Total non-project related exceedances 1585

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

EXHIBIT 5. CON TRUCTION AREA AND NOI E MEA UREMENT LOCATION

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

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

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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, eptember 14, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 53.4 49.8 50.1 46.5 49.3 47.6 51.2 55.6 58.5 N/A N/A

ite 2 - 2015 E. Roanoke t 78 58.3 55.9 55.4 54.6 54.6 52.9 56.2 59.8 61.9 N/A N/A

ite 3 - 3810 E. McGilvra t 62 46.5 45.9 48.1 46.1 47.9 45.4 46.7 47.7 49.5 N/A N/A

ite 4 - 2800 Montlake Blvd E 66 62.9 62.0 60.2 59.6 59.2 58.6 62.6 67.3 68.3 N/A N/A

ite 5 - 2565 22nd Av E. 65 57.0 54.4 56.8 54.9 55.7 51.1 54.6 57.8 60.2 N/A N/A

ite 6 - 2160 E. Hamlin t 63 49.4 46.7 48.6 44.5 47.1 43.2 49.7 52.2 54.3 N/A N/A

ite 7 - 2209 E. Lake Wa Blvd 66 51.6 48.4 49.6 47.5 48.1 45.6 49.6 53.8 56.8 N/A N/A

ite 8 - Portable Between ites 4 and 6 63 51.5 48.4 48.1 46.3 47.5 45.2 51.5 53.7 55.0 N/A N/A

ite 9 - Portable Between ites 1 and 7 66 58.4 54.5 54.3 52.6 54.0 52.0 55.7 60.6 63.8 N/A N/A

ite 10 - Portable Between ites 1 and 7 66 59.9 54.8 55.4 51.0 54.3 53.9 55.7 61.7 64.9 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

The Design‐Builder w rked between 10:00pm and 7:00am t d bridge deck repair n the SR520 fl ating bridge.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site 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 3 f 10

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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, eptember 15, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 54.2 50.9 48.8 48.0 48.0 50.7 51.5 56.6 59.5 N/A N/A

ite 2 - 2015 E. Roanoke t 78 59.9 58.4 57.5 53.9 53.2 54.1 56.4 60.7 62.9 N/A N/A

ite 3 - 3810 E. McGilvra t 62 50.3 52.1 52.4 52.5 49.2 51.3 52.8 48.2 50.1 N/A N/A

ite 4 - 2800 Montlake Blvd E 66 63.0 61.4 59.4 59.1 57.9 60.1 62.2 67.3 68.5 N/A N/A

ite 5 - 2565 22nd Av E. 65 57.9 57.3 56.2 52.5 51.5 52.0 54.6 58.9 61.4 N/A N/A

ite 6 - 2160 E. Hamlin t 63 51.1 48.0 46.1 44.3 45.1 46.0 47.7 51.6 53.0 N/A N/A

ite 7 - 2209 E. Lake Wa Blvd 66 53.9 51.1 48.8 47.2 47.2 47.8 49.2 53.8 56.4 N/A N/A

ite 8 - Portable Between ites 4 and 6 63 53.3 52.4 51.2 50.4 49.2 47.2 50.3 53.6 54.8 N/A N/A

ite 9 - Portable Between ites 1 and 7 66 61.6 55.5 53.5 53.0 53.4 54.1 54.7 60.9 64.2 N/A N/A

ite 10 - Portable Between ites 1 and 7 66 59.8 56.5 53.1 52.1 54.1 56.3 55.0 62.4 65.6 N/A N/A

*Hourly-Average Leq (dBA)

Notes recorded by the on-site Independent Noise Monitor

Work:

The Design‐Builder w rked between 10:00pm and 7:00am t deliver equipment t the n rth pit with n w rk activities.

Public Comments:

N public c mments received related t nighttime n ise.

Exceedances:

Site 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 4 f 10

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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, eptember 16, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 54.9 51.4 51.3 49.6 47.7 45.8 50.9 56.3 59.9 N/A N/A

ite 2 - 2015 E. Roanoke t 78 58.0 58.8 54.5 53.6 51.5 51.9 55.9 60.2 62.5 N/A N/A

ite 3 - 3810 E. McGilvra t 62 46.7 45.9 45.8 46.1 45.8 45.5 46.5 48.8 51.4 N/A N/A

ite 4 - 2800 Montlake Blvd E 66 63.7 61.9 58.9 59.5 56.4 57.8 63.1 67.1 68.8 N/A N/A

ite 5 - 2565 22nd Av E. 65 56.4 59.0 52.7 51.8 49.5 49.8 53.9 58.4 60.9 N/A N/A

ite 6 - 2160 E. Hamlin t 63 55.3 51.7 50.4 49.1 46.3 45.9 49.5 51.7 54.1 N/A N/A

ite 7 - 2209 E. Lake Wa Blvd 66 52.5 50.5 49.3 47.2 45.7 44.0 48.7 53.6 56.9 N/A N/A

ite 8 - Portable Between ites 4 and 6 63 54.3 51.1 49.7 49.2 46.4 45.0 50.5 53.5 55.4 N/A N/A

ite 9 - Portable Between ites 1 and 7 66 59.0 55.8 60.0 52.9 53.0 50.0 55.3 60.5 65.1 N/A N/A

ite 10 - Portable Between ites 1 and 7 66 59.9 56.4 57.6 53.1 52.6 50.7 54.9 61.4 65.3 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 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 5 f 10

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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, eptember 17, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 54.4 51.5 47.8 47.0 46.5 50.0 50.9 55.9 58.4 N/A N/A

ite 2 - 2015 E. Roanoke t 78 62.6 58.7 53.2 51.0 51.0 52.9 56.1 61.0 61.6 N/A N/A

ite 3 - 3810 E. McGilvra t 62 48.3 46.1 45.7 45.8 46.0 45.8 46.8 48.9 51.1 N/A N/A

ite 4 - 2800 Montlake Blvd E 66 65.3 62.3 59.1 57.1 56.4 58.8 62.2 66.9 68.8 N/A N/A

ite 5 - 2565 22nd Av E. 65 60.8 56.3 51.3 49.2 49.2 51.0 54.2 59.1 60.0 N/A N/A

ite 6 - 2160 E. Hamlin t 63 51.3 46.8 46.7 48.0 45.2 44.1 48.2 52.5 52.5 N/A N/A

ite 7 - 2209 E. Lake Wa Blvd 66 54.9 50.2 46.1 44.8 44.5 45.5 48.9 53.4 55.8 N/A N/A

ite 8 - Portable Between ites 4 and 6 63 52.6 50.1 47.1 46.6 45.3 45.6 49.7 54.0 54.3 N/A N/A

ite 9 - Portable Between ites 1 and 7 66 58.9 55.7 51.2 50.1 50.2 51.2 54.0 60.8 64.8 N/A N/A

ite 10 - Portable Between ites 1 and 7 66 59.8 57.0 52.2 51.8 51.4 53.9 54.1 61.5 65.0 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 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 6 f 10

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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, eptember 18, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 54.8 52.6 50.8 48.1 46.1 44.5 46.9 50.6 52.5 55.9 58.4

ite 2 - 2015 E. Roanoke t 78 58.6 58.0 56.3 53.6 52.4 50.8 53.0 56.0 58.5 59.6 60.5

ite 3 - 3810 E. McGilvra t 62 46.5 45.5 45.2 44.9 45.1 44.9 45.2 46.7 49.6 46.2 47.6

ite 4 - 2800 Montlake Blvd E 66 64.2 63.2 61.0 59.3 57.3 56.0 58.8 62.3 65.5 65.9 66.7

ite 5 - 2565 22nd Av E. 65 57.0 56.2 54.4 51.7 50.7 49.0 51.2 54.0 56.7 57.8 58.6

ite 6 - 2160 E. Hamlin t 63 52.8 48.9 48.0 45.6 44.5 42.0 45.2 47.9 49.0 49.8 52.5

ite 7 - 2209 E. Lake Wa Blvd 66 53.3 51.3 50.1 46.7 45.1 43.1 45.9 49.1 50.7 53.2 55.3

ite 8 - Portable Between ites 4 and 6 63 54.2 51.2 49.2 46.0 45.4 43.1 46.2 49.3 50.8 51.6 53.8

ite 9 - Portable Between ites 1 and 7 66 60.0 57.9 55.5 52.8 50.3 49.0 52.1 56.6 57.8 62.2 62.0

ite 10 - Portable Between ites 1 and 7 66 60.4 58.7 55.7 54.2 50.1 49.2 52.2 57.1 58.5 61.5 64.0

*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 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

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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

aturday, eptember 19, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 56.1 54.1 51.7 50.6 47.2 47.0 46.0 49.6 52.5 54.4 57.8

ite 2 - 2015 E. Roanoke t 78 60.8 58.6 56.6 55.2 52.9 52.5 51.6 54.6 59.1 58.9 61.3

ite 3 - 3810 E. McGilvra t 62 47.4 45.0 42.5 40.3 36.3 38.4 36.6 42.5 47.1 41.0 53.7

ite 4 - 2800 Montlake Blvd E 66 67.0 64.7 62.2 60.0 58.0 56.6 57.8 62.6 70.5 64.9 67.7

ite 5 - 2565 22nd Av E. 65 60.4 57.9 55.4 53.3 51.2 50.4 49.8 52.8 57.5 57.1 60.4

ite 6 - 2160 E. Hamlin t 63 52.9 52.0 50.2 49.4 44.5 46.2 44.9 48.7 50.0 50.5 53.7

ite 7 - 2209 E. Lake Wa Blvd 66 55.1 53.1 50.9 49.0 46.2 45.5 44.4 48.0 52.4 53.1 56.1

ite 8 - Portable Between ites 4 and 6 63 55.0 53.0 51.4 50.7 46.7 47.6 46.5 50.9 52.3 52.9 55.4

ite 9 - Portable Between ites 1 and 7 66 62.4 60.5 57.3 56.5 51.4 50.3 49.0 53.4 56.5 59.9 63.9

ite 10 - Portable Between ites 1 and 7 66 63.1 61.0 57.6 56.1 52.6 51.4 50.5 54.2 58.0 60.7 64.7

*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 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

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 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

unday, eptember 20, 2020 ite ite limit* 10pm - 11pm 11pm - 12am 12am - 1am 1am - 2am 2am - 3am 3am - 4am 4am - 5am 5am - 6am 6am - 7am 7am - 8am 8am - 9am

ite 1 -2449 E. Lk WA Blvd 67 55.3 52.5 49.9 47.3 47.1 48.3 51.2 55.5 58.7 N/A N/A

ite 2 - 2015 E. Roanoke t 78 59.7 59.8 54.7 53.0 51.2 52.3 56.3 60.6 62.2 N/A N/A

ite 3 - 3810 E. McGilvra t 62 42.8 38.8 37.6 32.4 35.6 34.1 39.8 46.0 52.3 N/A N/A

ite 4 - 2800 Montlake Blvd E 66 63.9 67.2 58.4 56.8 56.0 57.5 61.9 67.6 68.7 N/A N/A

ite 5 - 2565 22nd Av E. 65 58.2 57.1 52.9 51.0 49.4 50.2 53.8 58.6 60.5 N/A N/A

ite 6 - 2160 E. Hamlin t 63 54.6 53.8 50.5 46.4 46.0 44.5 47.7 49.9 52.5 N/A N/A

ite 7 - 2209 E. Lake Wa Blvd 66 53.7 52.0 48.4 45.5 44.8 47.5 48.8 53.8 56.4 N/A N/A

ite 8 - Portable Between ites 4 and 6 63 55.1 53.4 49.4 46.2 45.8 45.5 49.7 52.5 55.0 N/A N/A

ite 9 - Portable Between ites 1 and 7 66 59.4 57.0 53.8 50.5 50.2 55.3 54.1 61.3 65.1 N/A N/A

ite 10 - Portable Between ites 1 and 7 66 59.5 56.6 54.4 51.9 51.9 52.0 55.0 61.4 64.7 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 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 9 f 10

R 520 Montlake Project

Major Public Project Construction Noise Variance

NOI E MONITORING - WEEKLY REPORT

Monday, eptember 14, 2020 to unday, eptember 20, 2020 10 p.m. to 7 a.m. (weekdays)/9a.m. (weekends)

Public Comment Log Date / Time To/From Issue Resolution

09/18/2020 ‐ 7:14 a.m T : H tline

Fr m: Resident acr ss P rtage Bay

Outside the MPPCNV Monitoring: Resident called the h tline c mplained

f a truck using their c mpressi n brakes ver P rtage Bay.

The incident was investigated by Chris Stack. He determined the vehicle wasn’t

ass ciated with ur pr ject.

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