HomeMy WebLinkAboutC4.2 STORM DRAINAGE DETAILS ORIGINAL SURVEY ON FILE AT ACCURATE SURVEYORS
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&DETAIL 1 THIS SHEET 5WALE RATE AREA REQUIRED REQUIRED
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CONCRETE COLLAR NON-TRAFFIC AREAS PLAN VIEW z r° ••
g _ _ _ 2 t OVER EXCAVATE TO FREE DRAINING MATERIAL AND
BACKFILL WITH 2'ASTM C-33 SAND AND PIT RUN IF MINIMU M HIGH
J 12" 12" g^ 12" PER PLANS REQUIRED. (ISPWC SECTION 801) GROUNDWATER ELEV(FIELD o
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1. THE USE OF SILTY LOAM OR CLAY IS PROHIBITED FROM USE AS BASIN BOTTOM MATERIAL.
NOTE: 2. DO NOT COMPACT BASIN AREA WITH HEAVY EQUIPMENT. IF COMPACTION OCCURS, RIP TO 12"AND REGRADE. 'I
3. REFER TO SPECIFICATIONS FOR SWALE PERCOLATION TESTING REQUIREMENTS. o
WELL COVER IN SECTION 1 CONTRACTO PRESENCE OR SHALL F THE DESIGN ORM DFESS ONAL PRIOR TO CONSTEPTH TO FREE DRAINING ORUCTIONUNDWATER&PERCOLATION RATE IN THE 4. CONTRACTOR SHALL EXCAVATE A TEST PIT AT SWALE LOCATION TO CONFIRM THE DEPTH TO FREE DRAINING SOILS w
AND GROUNDWATER IN THE PRESENCE OF THE DESIGN PROFESSIONAL. Lu
SIDEWALK CONCRETE COLLAR TRAFFIC AREAS 2. IF GROUND WATER IS LESS THAN 1'-0"TO THE BOTTOM OF SEEPAGE BED, CONTACT DESIGN PROFESSIONAL 5. SAND WINDOW TO REMAIN UNVEGETATED. PROVIDE 2"DEPTH OF EXPOSED SAND OVER TOP OF FILTER FABRIC. w
IMMEDIATELY FOR REDESIGN. SEE SOILS REPORT FOR ADDITIONAL INFORMATION. 6. A MINIMUM OF 18"OF C33 SAND IS REQUIRED AT TOP OF SAND WINDOW. Copyright CO 2025
LOCKABLE WELL COVER,8"DIAMETER WATER 3. CONTRACTOR TO CONTACT DESIGN PROFESSIONAL IF SITE VARIATION DIFFER TO THAT WHICH IS SHOWN IN All rights reserved. Reproduction or use in any form o
HAPPROVED PLANS. or by any means without written permission of 2
TIGHT GALVANIZED STEEL COVER AND 4. REFER TO ACHD STORMWATER BMP 20 FOR ADDITIONAL INFORMATION &REQUIREMENTS. Breckon Land Design,Inc. and subject to 0
CANISTER.
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.. SECTION 2060) -ITI=ITI=ITI�I- ��TI=ITI=ITI=III=1il=PVC CAP, SOLVENT WELDED OR GASKETED 'I=1=I III II II=IIIII II II—IIIiIII Ii—I I ITI l lei l-I I=—ITI-1 --I I I=i—1 - 11I--11I1-TI1I I1 I1IT=-111-TI1I1IT11 I1--I1I1I1=I11 1'1�I II=11 1-
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� 1. WELLS ARE FOR OBSERVATION OF GROUNDWATER LEVEL NEAR STORM DRAINAGE FACILITIES. NOTES:
- 2. LOCATION OF GROUND OBSERVATION WELLS SHALL BE APPROVED BY CITY ENGINEER. C I UJ
3. REFER TO ACHD ISPWC SUPPLEMENTAL SD-627 FOR MORE INFORMATION. 1. ALL COMPACTION OF FACILITIES SHALL COMPLY WITH DIVISION 200 OF THE ISPWC z
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REVISIONS
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No. Date Description
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PROJECT NO.: O
0 25027
B DRAWN
SEEPAGE BED PIPE CR2 BY:
PERFORATION SCHEDULE CHECJB
KED BY:
0 10/21/25
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CIA SHEET NUMBER z
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