Chapter 1 - Caltrans - State of California

Table B Predicted Noise Reduction For Soundwalls On U.S. 101 - Full Build
Receiver
A1
A2
A3
A4
A5
B
BM1
B1
B2
B3
B4
D
D1
D2
D5
Predicted
Worst-
Hour
Noise
Level
dBA -
Leq[H]
67
67
66
67
67
70
67
70
72
69
68
66
67
68
68
Soundwall
Number(s)
Soundwall
Location
Appendix F Noise Aerial Maps and Table
2.44-m (8 ft) 3.05-m (10 ft) 3.66-m (12 ft) 4.27-m (14 ft) 4.88-m (16 ft)
Noise
Level
(dBA)
Noise
Reduction
(dBA)
Noise
Level
(dBA)
Noise
Reduction
(dBA)
Noise
Level
(dBA)
Noise
Reduction
(dBA)
Noise
Level
(dBA)
Noise
Reduction
(dBA)
Noise
Level
(dBA)
Noise
Reduction
(dBA)
101 + 102 ES 66 1 65 2 65 2 65 2 - -
- R/W 66 1 65 2 65 2 64 3 64 3
101 + 102 ES 63 4 61 6 60 7 59 8 - -
- R/W 67 0 66 1 64 3 63 4 61 6
102 ES 62 4 60 6 59 7 58 8 - -
- R/W 66 0 65 1 64 2 62 4 61 5
102 ES 63 4 61 6 60 7 60 7 - -
- R/W 67 0 65 2 65 2 63 4 61 6
102 ES 63 4 62 5 61 6 61 6 - -
- R/W 66 1 65 2 64 3 62 5 61 6
103 + 104 ES 65 5 65 5 63 7 63 7 - -
- R/W 67 3 66 4 65 5 64 6 63 7
103 + 104 ES 63 4 63 4 61 6 61 6 - -
- R/W 65 2 64 3 63 4 62 5 61 6
103 + 104 ES 66 4 66 4 65 5 65 5 - -
- R/W 68 2 67 3 66 4 66 4 65 5
104 ES 67 5 66 6 64 8 63 9 - -
- R/W 70 2 68 4 67 5 65 7 63 9
104 ES 64 5 64 5 62 7 60 9 - -
- R/W 65 4 65 4 63 6 61 8 60 9
104 ES 65 3 63 5 62 6 60 8 - -
- R/W 66 2 65 3 63 5 62 6 60 8
-
ES 63 3 62 4 60 6 59 7 - -
105 R/W 62 4 61 5 61 5 60 6 60 6
-
ES 66 1 64 3 62 5 60 7 - -
105 R/W 63 4 62 5 61 6 60 7 60 7
-
ES 67 1 66 2 64 4 62 6 - -
105 R/W 63 5 63 5 62 6 62 6 61 7
- ES 67 1 66 2 65 3 64 4 - -
106 R/W 63 5 62 6 62 6 61 7 61 7
-
ES 71 0 70 1 68 3 66 5 - -
IS/EA VEN-SB US101 HOV Project 271