HomeMy WebLinkAboutapproved Site plan 5.8.2026X 1/�,63 I
/ J
\ \ \ \ \ \ X 24,87
\ `x X 22,5x 24 27
\� \ \ \
X 75 \\ \� �� \\ \ \ X 119,96 2��,49 I
\ \ dA o \� \ \ �\ X 20,71 Cv �\ X 2 4, 51
22,14 \� X 24,23
CP
1211 /
x 2,61 v X v5,�3 vv vv vv v ` �v vX 22.27 /
x 2-3' 24,12 X 2511
v Xv 3,89 v vv ` vv ` �� �` vv `� /--
24,86
\ \ \ \
24,5
Xv 40 -EXIST. STAIRS
x �-9)85x 1Q�1 �� BE F�EPLACED-
\ Ix 61
L38 v vv / 6'08
\ X 3,46 \\ 6 59 \ X 6,94 x 7-3-3--
X_ 7_2 6 ->
x 4 60 db�eRETE x 5 ,
412 RETAINING WALL \
)1,68 3,79 - - -
l _-
X 311 --�,
BEACH
X 2�29 2
1 3 6 \
0
0
I
IN
10 5 0
PLAN
10
1 inch = 10 ft.
4
X 24,46 X 24,57
"0 4
')E
23,14
CONCRETE
RETAINING WALL
4,1\7 X 3 4 ,,
4 x 23 93 X_1-8�27V
2
- _X_ � 4- 4-6
' - x 16,E _-14
--------- 22 -
'
---- 2 - X 15,07 /
-10
r 1C� �-
X 23 24
X 24,72
BENCHMARK USGS
TRIANGULATION DISC
EL=24.6' (NAVD'88)
,21 �
/
23,58
X 4,92 X 5 0\7 \
\ Il
CONCRETE ` 1
RETAINING WALL ` �,49
15 c) T
42
3 40 X 3,44 X 3,88 �\
CONCRETE
RETAINING WALL
223457
(__
X 6 20 t,04 X 5�22
6 6
--------X_ 6�3
'94 X 4,51
X 4,75
X 2,32 X 2,91
X 2,96
5,53
4,26
X 3,32
3,31
STOP x 0,85 52 x 1 87-------'�-� 92
o Fe Hw EL.= 1.5 ,
2 5 �u03
197 .83
WW UC. No. D
30
x n<BREAKWATER DPW ���
STONE
0 10 20 30 40 50 60 70 80 90 100
PROFILE A -A
1 " = 10'
STRAP STRINGER -
MEMBERS TOGETHER
@ 6' OVERLAP. w/
2%4" TREAD CLEAT
METHOD
BANK/ DUNE
BEACH
GROUND
STAIR FRAME END
(NO SCALE)
4" X 6" POSTS
4' MIN. EMBEDMENT ON BANK
SLOPEPOSTS DOWN SLOPE
FROM WALL = 6 FT.
EMBEDMENT
5/8"0 BOLTS / WASHERS
ALL FRAME TO POST
CONNECTIONS S(SEE
PROFILE DETAIL FOR SPLIT
CAP STRINGER SUPPORT
4" x 6" POSTS
I
I
I
VIEW
FOR CONINUOUS
STRINGER PROVIDE A
BOLTED 2"X12" "SCAB"
SEGMENT, MIN 2 FT.
OVERLAP
STAIR CONSTRUCTION NOTES
1. ELEVATIONS REFER TO NAVD88. BENCHMARK IS THE USGS DISK AT THE TOP OF THE STAIRS
2. SITE PLAN IS BASED UPON A TOPOGRAPHIC SURVEY PREPARED BY JOHN DEMAREST, PLS
3. ALL WORK SHALL BE UNDERTAKEN IN ACCORDANCE WITH ANY ORDER OF CONDITIONS ISSUED BY THE
YARMOUTH CONSERVATION COMMISSION
4. THE EXISTING STAIRS SHALL BE FULLY REMOVED BY HAND METHODS AND REPLACED IN THE EXISTING
PROJECTION AREA.
5. THE PROPOSED STAIRWAY FRAME SHALL BE CONSTRUCTED OF STANDARD DIMENSIONED
CONSTRUCTION LUMBER AS INDICATED ON THE TYPICAL DETAIL. THE FRAME TIMBER STOCK SHALL MEET
THE YARMOUTH CONSERVATION COMMISSION REQUIREMENTS FOR PRESERVATIVE TREATMENT: ALL
MEMBERS IN GROUND CONTACT SHALL BE RATED FOR IN -GROUND USE. UNTREATED WOOD SHALL BE
INSPECTED AT LEAST TWICE PER YEAR TO EVALUATE AREAS OF DECAY.
6. HARDWARE: PREFERRED HARDWARE, STRAPS AND JOIST HANGERS FOR COASTAL EXPOSURE & ACQ
APPLICATION IS STAINLESS STEEL. HARDWARE IS RECOMMENDED TO MEET THE AWPA EXPOSURE
SPECIFICATION AC257 FOR ANTI -CORROSION PROTECTION. BOLTS SHALL BE HOT -DIP GALVANIZED STEEL.
ALL BOLTS SHALL BE THRU-BOLTS WITH NUTS AND WASHERS. USE OF LAG BOLTS OR "TIMBERLOCK"
SCREWS SHALL BE USED WHERE THRU-BOLT LIMITATIONS APPLY AND ONLY UPON OWNERS' ENGINEER
APPROVAL. ROUTINE INSPECTION OF THE STRUCTURE AND FASTENER CORROSION CONDITION IS
RECOMMENEDED DUE TO WOOD PRESERVATIVE EFFECTS AND COASTAL EXPOSURE.
7. HANDRAIL MAY BE OF A SOFTER WOOD OR COMPOSITE VARIETY SUBJECT TO OWNER'S APPROVAL.
8. SUBSTUTUTION OF COMPOSITE MATERIALS FOR ANY TIMBER COMPONENTS IS SUBJECT TO APPROVAL
BY THE OWNER AND ENGINEER.
9. MATERIAL DELIVERY, REFUSE AND DEBRIS COLLECTION, WORK ACCESS SHALL BE FROM THE UPPER
BANK ALONG THE EXISTING STAIR ROUTE UTILIZING AS MUCH AS POSSIBLE THE EXISTING AND
COMPLETED PORTIONS OF THE STAIRWAY. MINIMIZE GROUND AND VEGETATION DISTURBANCE.
10. OWING TO MINOR TOPOGRAPHIC VARIATIONS EVALUATION OF THE NEED FOR MINOR PRUNING WILL
BE REVIEWED AT TIME OF CONSTRUCTION. THE STAIRWAY STRINGERS SHALL BE BEST FITTED TO THE
SLOPE ONCE THE POSTS ARE SET IN GENERAL CONFORMANCE WITH THE PLAN HOLDING TO THE RATIO OF
AN APPROX. 7 IN. RISER HEIGHT AND APPROX. 11.5 INCH TREAD WIDTH. FINAL TREAD AND RISER COUNT
CAN BE DETERMINED ONCE THE STRINGER IS SET.
11. EACH DAY THE SITE SHALL BE CLEANED OF DEBRIS SUCH AS DISCARDED WOOD MATERIAL. THE OLD
STAIR COMPONENTS AND NEW MATERIAL CUT-OFFS SHALL BE DISPOSED OFF SITE.
12. POST SUPPORT INSTALLATION SHALL BE ACCOMPLISHED BY SUITABLE POST HOLE CORER,
COMPACTED IN PLACE, OF A MINIMUM OF 4 FT. MIN. EMBEDMENT AS MEASURED FROM ANY POINT ON THE
SLOPE. POST BACKFILL SHALL BE HAND TOOL COMPACTED IN 4 INCH LIFTS SUBJECT TO INSPECTION FOR
PROPER FIXITY. CROSS BRACE LOWER POSTED SEGMENT EXCEEDING 2 FT. EXPOSURE. EXCESS SOIL
SHALL BE REMOVED OR DISTRIBUTED INTO THE SURFACE VEGETATION. CYLINDRICAL CONCRETE POST
FOOTINGS ARE NOT ADVISED. CONSULT ENGINEER FOR ANY ALTERNATE POST SUPPORT. THE BOTTOM
POST BENT SHALL BE A MIN OF 5 FT. EMBEDMENT.
13. ANY AREA DISTURBED BY CONSTRUCTION FOOT TRAFFIC OR OTHERWISE OBSERVED AS
DISTRESSED OR ELIGIBLE SHALL BE PLANTED WITH SWITCH GRASS PLUGS OR OTHER COASTAL HARDY
GRASS PLUGS UPON COMPLETION OF THE STAIR WORK WEATHER PERMITTING.
14. IF GRADE CLEARANCE ALLOWS, INSTALL A 2 IN. STOCK PLANK AS A "BACKSTOP" AT GRADE SPIKED
TO THE UPHILL SIDE OF THE POSTED BENTS ON THE BANK SLOPE AT INTERVALS TO SLOW INCIDENTAL
RUNOFF BENEATH THE STAIRS.
15. IF AUTHORIZED, SEGMENTS OF LATH -TYPE SAND DRIFT FENCE MAYBE LASHED TO THE STAIR POSTS
SEAWARD OF THE RETAINING WALL.
1 /2 " THROUGH BOLT
WITH 1 INCH WASHER FOR
STRINGER SCAB
MAINTAIN EXISTING
GRADE CLEARANCE
FOR STRINGERS
m
(2) 2" x 12"
(NOMINAL)
STRINGER UN -CUT
( CLEATED) TREAD
SPAN IS 24
INCHES. A CUT
CENTER STRINGER
IS OPTIONAL
2" x 12" STRINGER
2" x 4" CLEATS
1 /2" BOLTS W/
1" WASHERS
STAIR STRINGER DETAIL
(NO SCALE)
TREAD
�11.5"�
RISER
7" (TYP.)
1" NOSING
STAIR TREAD
O O 2" STOCK
�2"x4'
\ TREAD
SUPPORT
1
5
#�OBE�T
PERM.RY'
CIVIL
' fi,p.35ABti
REV 5/8/2. CORRECT NOTES 10 & 15.
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