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OBSERVATION
WELL #1 Q
ACROSS STREET DIVERSION STRUCTURE
IE
WITHIN SIDEWALK WITH HIGH ® - P JOINTS TO HAVE MAX 2" GAP SPACING
OR MIN 50' FROM BASIN FLOW BYPASS IN ACCORDANCE WITH LATEST ADA � O
ASTM #8 OPEN-GRADED REQUIREMENTS NOTES:
aw FRACTURED AGGREGATE IN CURB/EDGE RESTRAINT PER 1. USE OF PERMEABLE INTERLOCKING CONCRETE PAVERS (PICP) IN PUBLIC STREETS REQUIRES ACHD
Q OPENINGS ISPWC SD-701 R, SD-702R, APPROVAL PRIOR TO DESIGN OR SHALL MEET THE REQUIREMENTS OF ACHD POLICY SECT 8202.
x x x x Q x_ —x x INTERLOCKING CONC. PAVERS MIN. SD-703, OR DETAIL BELOW AGREEMENT FOR PROTECTION AND MAINTENANCE OF PICP IS REQUIRED.
GATE G, m 3 1/8" (80 MM) PER
E.G �Q ` ASTM C 936 2. INTERLOCKING CONCRETE PAVEMENT INSTITUTE (ICPI) CERTIFIED INSTALLER IS REQUIRED. INSTALLER TO
TOP OF BANK o PROVIDE CERTIFICATIONS PRIOR TO PLACEMENT.
ASTM #8 OPEN—GRADED
st OUTLET PROTECTION PER FRACTURED AGGREGATE BEDDING 3. PICP SHALL MEET REQUIREMENTS OF ACHD SECTION 8010 INFILTRATION REQUIREMENTS. rof4
rBOTTOM
ISPWC SD-628 (TYP) COURSE1 1/2" TO 2" THICK
F BASIN W MAINTENANCE ACCESS \ r��; ' 4. 0% CROSS SLOPE ON PAVER SURFACE AND SUBGRADE.
RAMP 15% MAX SLOPE ASTM #57 OPEN—GRADED /�/�/FRACTURED AGGREGATE BASE \�\ BASE SECTION PER CURB DETAIL 5. MAXIMUM LONGITUDINAL GRADE IS 2.0%.COURSE 4" THICK6. FOR USE WITH ATTACHED SIDEWALK OR ALLEYS ONLY.
Y Y Y J J
ASTM #2 OPEN-GRADED
BERM SHALL INCLUDE FRACTURED AGGREGATE SUBBASE \\j\\\j/ 7. AGGREGATES SHALL MEET ASTM STANDARDS AND ICPI PERMEABLE INTERLOCKING CONCRETE PAVEMENT
h CLAY MATERIAL TO THICKNESS PER DESIGN \//\\/�y/\\ //\\//\\�\�/ (PICP) MANUAL, CURRENT EDITION.
W W PREVENT WASHOUT W W W SLOPES 3:1 OR GREATER REQUIREMENTS \/�\//\\j\\/ram `��j\\j�\/\\ ,�0,
,
W W r MUST PLACE FENCE. PERFORATED PIPES) \\//\\//\\//\\// /\\//\\//\\//\\ NONWOVEN FILTER FABRIC 8. OBSERVATION WELL PER ISPWC SD-627. OBSERVATION WELLS ARE REQUIRED AT THE LOW POINTS, N
3:1 REQUIRES ACHD WITH APPROVED DISCHARGE POINT. z PER SECT 8200, ENCLOSE THE PAVER SECTION AND OUTSIDE. OUTSIDE WELL TO EXTEND MIN 1' BELOW SEASONAL HIGH /��1�
v PRIMARY v SIDES AND ENDS OF OPEN— GROUNDWATER. OUTSIDE WELLS ARE NOT REQUIRED IN ALLEYS.
v r W W To
m APPROVAL; 2:1 MAXIMUM REQUIRED IF INFILTRATION RATE GRADED BASE, 6-IN MIN OVERLAP
w W W W W r OF NATIVE SOILS <0.5 IN/HR ;� 9. PAVER PRODUCTS PER ACHD APPROVED LIST. SEE DEVELOPMENT SERVICES FOR CURRENT LIST.
UNCOMPACTED/SCARIFIED
ARMORED SPILL CHANNEL, SOIL SUBGRADE 10. REVERSE PAN VERTICAL CURBING SHALL ONLY BE PLACED ALONG MEDIAN ISLANDS AND COLLECTOR
1__�ANGULAR RIPRAP, 6"-12" ROADWAYS THAT DO NOT CONTAIN FRONT-ON-HOUSING. REVERSE PAN ROLLED CURBING SHALL ONLY BE
4" MIN TOPSOIL OR AMENDED NOMINAL SIZE WITH USED FOR SECTION USED ALONG ROALAD
ONGOALD EWAY YWAYS SECTIONS THAT CONTAIN FRONT-ON-HOUSING. RIBBON CURBING SHALL ONLY BE
NATIVE MATERIAL WITH NONWOVEN FABRIC PER
VEGETATION. SEE NOTES BELOW N.T.S.
ISPWC SECT 206 & 2050. 11. UTILITY WORK, INCLUDING JOINT TRENCH AND ALL UNDERGROUND UTILITIES, SHALL BE COMPLETED PRIOR
MIN 0.5-FT DEPRESSION, TO EXCAVATION OF SUBGRADE AND PLACEMENT OF BALLAST SECTION AND PICP.
10-FT WIDE
PLAN VIEW
N.T.S.
CURB/EDGE
RESTRAINT OBSERVATION WELL PAVER SURFACE 0% CROSS SLOPE
FREEBOARD: PER ABOVE PER ISPWC SD-627 8"Wx18"D RIBBON
p CURB EDGE RESTRAINT
= 100—YR W.S.E. — 0.5' FOR WATER DEPTH <3'
r r. OR 2'X8" RIBBON CURB
1.0' FOR WATER DEPTH >3'
. � � `. .. .... .. .. PER
- . .•. :.• . •:. EDGE RESTRAINT
SECTION AS ISPWC SID-703
INDICATED ABOVE
0% SUBGRADE CROSS SLOPE a
�Sr�r i r��i rrrrr rr rrrrr rr rrr rr rrr r rr`rr`rr rr rrr
., �`� ��� �``r�����r�r��� r r��ryr����������������:r`ri;• MIN. 3' SEPARATION FROM SEASONAL
HIGH GROUND WATER
Sri ri�ri rrr r r ri rr`r r rr`ir`ir`ir`r`i ��r��%�
NATIVE SOIL
trr �iri`rirr, rrrrr rrr,
��r��r��r��r��r��r��r�� �`rr�rA-
r r rr rr, NATIVE ri`rr`ri`ri`ri`rTri`ri � �.(ir �
4" MIN TOPSOIL 0R �T� r� rrr /��r% 17
MATERIAL i �/r`�r/`r�` �//`/>��r� z�
AMENDED NATIVE MATERIAL �iy`r .,r�r,�``i`r�``r�y�r�i;�i`i�r�`i ;�`i�`r,�`r
SEASONAL HIGH GROUNDWATER
WITH VEGETATION.
SEE NOTES BELOW
SECTION
N.T.S. STREET OR ALLEY SECTION
NOTES: N.T.S.
1. SEE STORMWATER BASIN STANDARDS DETAIL 4, SHEET 2
2017 INFILTRATION BASIN STANDARD DRAWING 2017 PERMEABLE INTERLOCKING STANDARD DRAWING 2017 PERMEABLE INTERLOCKING STANDARD DRAWING
ACHD S ORMWATER GUIDELINES DESIGN BMP P 1 O ACHD S GUIDELINES ORMWATERDESIGN CONCRETE N C R ETE PAVERS (PICP) N0' BMP P 3 4 ACHD S GUIDELINES ORMWATERDESIGN CONCRETE N C R ETE PAVERS (PICP) N
W 0' B M P 34
ITH FOREBAY
SHEET 1 OF 2 SHEET 2 OF 2
AND Stormwater Design Guidlines - BMP 10 2 AND Stormwater Design Guidlines - BMP 34
1 Scale: NTS Scale: NTS
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Revisions
1. 5/30/25-CITY FP COMMENTS
AL
568
..^^ 05/30/2025
qTE OF 0
f9 'S W.G
Project No.: 123200
5
Date of Issuance: 4.15.2025
Project Milestone: Permit Set
Drainage & Utility Plan
Details
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