DUNE RESTORATION PLANT LEGEND & DUNE PROTOTYPES AS SHOWN 11/7/12 1 DUNE HUMMOCK PROTOTYPES 2 DUNE RESTORATION KEYPLAN FOR ZONES A-K SCALE: 1 " = 10 ' 0 10 SCALE: 1" = 10'-0" DUNE RESTORATION NOTES: 1) SEE SHEETS L-2 TO L-4 FOR TYPICAL DUNE RESTORATION SECTIONS AND SHEETS L-5 TO L-10 FOR THE ENTIRE BEACH. 2) ALL PROPOSED PLANTING WILL BE IRRIGATED WITH A TEMPORARY IRRIGATION SYSTEM THE IRRIGATION SYSTEM WILL PROVIDE THE MINIMUM AMOUNT OF WATER REQUIRED TO SUSTAIN GOOD PLANT HEALTH DURING THE PLANT ESTABLISHMENT PERIOD, AND IS EXPECTED TO BE DISCONTINUED APPROXIMATELY 2-3 YEARS AFTER INSTALLATION. 3) THE EXISTING ROCK REVETMENT DEPICTED ON THE DUNE PROTOTYPE SECTIONS ON SHEETS L-2 AND L-3 IS NOT PRESENT IN ALL LOCATIONS ALONG THE BEACH. SEE ENGINEERING PLANS FOR THE LIMITS OF THE EXISTING ROCK REVETMENT. 4) THE DUNE PROTOTYPE SECTIONS ON SHEETS L-1 ARE INTENDED TO DEPICT THE APPROXIMATE RELATIONSHIPS BETWEEN THE PROPOSED DUNE HUMMOCKS AND THE EXISTING ROCK REVETMENT, AND THE ACTUAL ELEVATIONS AND EXTENT OF ROCK MAY VARY. AS SHOWN, A 2' MINIMUM BASE LAYER OF SAND WILL BE PLACED OVER THE REVETMENT WHERE IT EXISTS, AND 2-3.3' HIGH DUNE HUMMOCKS WILL BE CREATED OVER THIS BASE LAYER OF SAND. 3 PLANT LEGEND SCALE: 1 " = 500 ' 0 500 SCALE: 1" = 500' N PACIFIC OCEAN POINT LECHUZA BROAD BEACH ROAD BROAD BEACH RESTORATION PROJECT California State Lands Commission 60% SUBMITTAL 6935-02 L-1 20 of 42 B C D E F G H I J K A SHEET INDEX L-1: NOTES & LEGENDS L-2: TYPICAL SECTIONS L-3: TYPICAL SECTIONS L-4: TYPICAL SECTIONS L-5: GRADING & PLANTING ZONES A-B L-6: GRADING & PLANTING ZONES C-D L-7: GRADING & PLANTING ZONES E-F L-8: GRADING & PLANTING ZONES G-H L-9: GRADING & PLANTING ZONES I-J L-10: GRADING & PLANTING ZONES K
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DUNE RESTORATION
PLANT LEGEND & DUNE PROTOTYPES
AS SHOWN 11/7/12
1DUNE HUMMOCK PROTOTYPES
2DUNE RESTORATION KEYPLAN FOR ZONES A-K
SCALE: 1 " = 10 '
0 10
SCALE: 1" = 10'-0"
DUNE RESTORATION NOTES:
1) SEE SHEETS L-2 TO L-4 FOR TYPICAL DUNE RESTORATION SECTIONS AND SHEETS L-5 TOL-10 FOR THE ENTIRE BEACH.
2) ALL PROPOSED PLANTING WILL BE IRRIGATED WITH A TEMPORARY IRRIGATION SYSTEM THEIRRIGATION SYSTEM WILL PROVIDE THE MINIMUM AMOUNT OF WATER REQUIRED TOSUSTAIN GOOD PLANT HEALTH DURING THE PLANT ESTABLISHMENT PERIOD, AND ISEXPECTED TO BE DISCONTINUED APPROXIMATELY 2-3 YEARS AFTER INSTALLATION.
3) THE EXISTING ROCK REVETMENT DEPICTED ON THE DUNE PROTOTYPE SECTIONS ONSHEETS L-2 AND L-3 IS NOT PRESENT IN ALL LOCATIONS ALONG THE BEACH. SEEENGINEERING PLANS FOR THE LIMITS OF THE EXISTING ROCK REVETMENT.
4) THE DUNE PROTOTYPE SECTIONS ON SHEETS L-1 ARE INTENDED TO DEPICT THEAPPROXIMATE RELATIONSHIPS BETWEEN THE PROPOSED DUNE HUMMOCKS AND THEEXISTING ROCK REVETMENT, AND THE ACTUAL ELEVATIONS AND EXTENT OF ROCK MAYVARY. AS SHOWN, A 2' MINIMUM BASE LAYER OF SAND WILL BE PLACED OVER THEREVETMENT WHERE IT EXISTS, AND 2-3.3' HIGH DUNE HUMMOCKS WILL BE CREATED OVERTHIS BASE LAYER OF SAND. 3
PLANT LEGEND
SCALE: 1 " = 500 '
0 500
SCALE: 1" = 500'
N
PACIFIC OCEAN
POINT LECHUZA
BROAD BEACH ROAD
BROAD BEACH RESTORATION PROJECT
California State Lands Commission
60% SUBMITTAL
6935-02
L-1
20 of 42
B
C
D
E
F
GH
IJK
A
SHEET INDEXL-1: NOTES & LEGENDSL-2: TYPICAL SECTIONSL-3: TYPICAL SECTIONSL-4: TYPICAL SECTIONSL-5: GRADING & PLANTING ZONES A-BL-6: GRADING & PLANTING ZONES C-DL-7: GRADING & PLANTING ZONES E-FL-8: GRADING & PLANTING ZONES G-HL-9: GRADING & PLANTING ZONES I-JL-10: GRADING & PLANTING ZONES K
LOT 30760 TO LOT 31016 (DOUBLE ROW, WITH REVETMENT)
RESTORE EXISTING DUNE HUMMOCKS, CREATE SECOND SEAWARD ROW
-30
-20
-10
0
10
20
30
40
-30
-20
-10
0
10
20
30
40
0 50 100 150 200 3000-50
RESTORE EXISTING
DUNE
+12
1
10
EXISTING ROCK
REVETMENT
EL
EV
AT
IO
N (M
LL
W)
250
POST NOURISHMENT TOE
+17 MLLW DUNE FOUNDATION
JOIN EXISTING DUNES
NOURISHMENT VOLUME BELOW +17 MLLW:
APPROX. 92 CY/FT
-100-150
HIGH TIDE
LOW TIDE
DUNE VEGETATION (APPROX. 40% COVERAGE)
LOT 30708 TO LOT 30756 (DOUBLE ROW, WITHOUT REVETMENT)
RESTORE EXISTING DUNE HUMMOCKS, CREATE SECOND SEAWARD ROW
-30
-20
-10
0
10
20
30
40
-30
-20
-10
0
10
20
30
40
0 50 100 150 200 3000-50
RESTORE EXISTING
DUNE
+12
1
10
EL
EV
AT
IO
N (M
LL
W)
250
POST NOURISHMENT TOE
+17 MLLW DUNE FOUNDATION
JOIN EXISTING DUNES
NOURISHMENT VOLUME BELOW +17 MLLW:
APPROX. 92 CY/FT
-100-150
HIGH TIDE
LOW TIDE
DUNE VEGETATION (APPROX. 40% COVERAGE)
EXISTING GRADE
PROPOSED GRADE (FOREGROUND)
PROPOSED GRADE (BACKGROUND)
LEGEND
BROAD BEACH RESTORATION PROJECT
California State Lands Commission
60% SUBMITTAL
6935-02
1" = 20' 11/7/12
DUNE RESTORATION:
TYPICAL SECTIONS
NOTE: SEE SHEET L-4 FOR DUNE RESTORATION KEY MAP AND NOTES, DUNE
HUMMOCK PROTOTYPES, AND PLANT LEGENDS. SEE SHEETS L-5 TO L-7 FOR