HomeMy WebLinkAboutC4.6_Street and Drainage Q O U
PROVIDE GRADE RINGS " _ 00
AS NEEDED 12" MAX 5 THICK CONCRETE a
SIDEWALK (TYP.) MONITORING WELL STRUCTURE TO 4" - 3/4" MINUS CRUSHED
HAVE HS 25 TRAFFIC = w
RATED TOP. GRAVEL (COMPACTION REQUIRED) (PER ACHD SD-627 ■� Z
18" DIA. CORRUGATED HDPE EXTEND GRAVEL AND PIT RUN 6" NOT TO SCALE L
18" DIA. BACKFILLL WITH NATIVE TOPSOIL WOVEN GEOTEXTILE FABRIC TYPE II PAST CURB. TYP. Z
OR PVC PIPE PERFORATED PER COMPACT IN 6 LIFTS TO 95�
CORRUGATED MATERIAL PER ISPWC SECTION 2050.2.3.A & ( )
CLEANOUT LIDS ELEV. "B" TOP HDPE OR PVC PIPE SCHEDULE BELOW.
OF STRUCTURE PROCTER DENSITY. ACHD SECTION 8200.23. HANES 7
STANDARD ROLLED
TO BE FLUSH NO PERFORATIONS GEOCOMPONENTS 'TERRATEX HPG-16' OR CURB & GUTTER (TYP.) AS PER =
WITH SIDEWALK APPROVED EQUIVALENT
OR LANDSCAPE ELEV "A" TOP OF OBSERVATION WELL PLANS 1 2 �Q
CURB OBSERVATION WELL SEE DETAIL THIS FINISH GRADE m
TREES & SHRUBS ANGULAR 3/4" SEE DETAIL THIS SHEET SHEET NOTE: ENTIRE ROAD SECTION TO a C° W Z Uj
ARE NOT PERMITTED TO 2" ROCK BE CLEAR OF SEEPAGE BED - SEE III III °° '` III' � W U)
ON TOP OF SEEPAGE7 CAP PIPE ELEVATION TABLE BELOW. _�
Uj
BED SEE ROAD SECTION SHEET 4.5 °0 3 Z
�� PLAN CONCRETE COLLAR cs � �
i i � � o\ coZ \ 3 L� < o
�� / / \ TOP WOVEN GEOTEXTILE FABRIC -
�A �A �A �A �A ELEVATION TYPE II MATERIAL PER ISPWC
/ "/
\ \ \ \ \
" " � - SECTION 2050.2.3.A & ACHD � ��18"��
TOP OF 5 MIN. o 0 0 0 0 0 0 �o 0 0 0 0 0 0 0 A A A A A�A F q " SECTION GEOCOMPONENTS TERRATEX 5
I�SEE o R 18 DIA. CORRUGATED HDPE 0 00
a BAFFLE PLAN 0 0 0 0 0 0 0 �_ 0 0 0 0 0 0 0 0 \� A� A� A� A� A�� �� OR PVC PIPE PERFORATED HPG_ z
WATERTIGHT 5'MIN. "E" INVERT \ �\ �\ �\ �\ �\ \ oo \ a \b PER SCHEDULE BELOW. EQUIVALENTR APPROVED g
K'
��J• CONNECTION 18" PIPE \��\��\��\��\�� ANGULAR 3/4"l o �
\ \ \ \ \ \\ > w ANAL
I \�/\�/\� DRAINAGE GEOTEXTILE TYPE 1. N G FO F�
J I \ J SECTION CONCRETE COLLAR Q
Q \ \ \ \ \\ m SIECTIONS82010.23)�OVERLAP HMINIMUM 0 U_ 10/23/2023
/ / / / /� " m LEGEND: 2 0 218
\ \ \ \ \ = Q OF 12 TOP & SIDES ONLY. HANES o zQ 6 u, p
W GEO COMPONENTS 'TERRATEX N04.5' N 1. WELL COVER, 8 DIAM. WATERTIGHT GALVANIZED STEEL � �
o ,
ANGULAR 3/4" � ANGULAR 3/4" �j��j��j��j��j��j�A o � OR APPROVED EQUIVALENT. o COVER AND CANISTER. 9� pQ
" cn " m 3 O F O F V
TO 2 ROCK TO 2 ROCK I \ \ \ \ \ ANGULAR 3/4 �5 �4s, 0 2. 2 OR 3 BOLT LID WITH HEAD AND SAE THREADS,
aoaa�� o ao�o�o�z �o �A��A��A��A�\� TO 2" ROCK 3 w �5 GASKETED. �H B. DVN
o - -� � I I rn -- �������� 0 R _j 0° 3. CONCRETE (COLLAR), CLASS 3000 (ISPWC SECTION 703).
w C> > - I
w w Q Q F m ° ° 4 4. " DIAMETER HOLES OR SLOTS CUT INTO PIPE AT 3"
w p ° ° ON CENTER. CHECKED BY:
`n`n I 5. TRACER WIRE SHALL BE PLACED ON OUTSIDE OF PVC DAVID A. BAILEY P.E.
�5 o 0 0 9
m a ° ° PIPE, MINIMUM 18 GAUGE, INSULATED, DRAWN BY:
" ASTM C33 FILTER SAND �_ ASTM C33 FILTER SAND BOTTOM ° ° SINGLE-CONDUCTOR COPPER WIRE, INSULATION COLOR
4 3 4 CHIPS z ° ° > SHALL BE GREEN WITH THREE 6" DIAMETER COILS. JBD
PIPE BEDDING ELEVATION
ASTM C33 FILTER SAND a a ° 6. PIPE SHALL BE PERFORATED PVC, ASTM D-3035, SDR
o ' o o ;= 35. WELLS BACKFILLED IN A PIT REQUIRE 6" PIPE.
° ° DRILLED WELLS MAY USE 4" PIPE.
DRAINAGE GEOTEXTILE TYPE 1. MAX HSGW 1 o 0 7. NONWOVEN FILTER FABRIC AROUND OPENINGS AND
ELEVATION \ ° ° \� BOTTOM, FABRIC OVER CHIPS/DRAIN ROCK.
(ISPWC SECTION 2050 & ACHD SECTION A-A o 0 0 0 8. POLYPROPYLENE FIVER REINFORCEMENT AT 1 X2 LBS/CY.
OF 12" TOP & SIDES ONLY. HANES A" LENGTH SEE TABLE
SECTION 8200.23 OVERLAP MINIMUM "B" WIDTH SEE TABLE o 0 0 9. BACKFILL MATERIAL TO MATCH STORAGE MEDIA FOR
" -
GEO COMPONENTS 'TERRATEX N04.5' -; OBSERVATION WELLS LOCATED WITHIN A BMP FACILITY.
OR APPROVED EQUIVALENT. GENERAL NOTES CROSS SECTION USE PIPE BEDDING CHIPS FOR OBSERVATION WELLS
1. CONTACT DESIGN ENGINEER IF GROUNDWATER IS ENCOUNTERED FOR SEEPAGE BED RESIZING. 7 _8 LOCATED OUTSIDE BMP FACILITIES.
2. ALL VAULTS, MANHOLES & SAND AND GREASE TRAPS MUST BE HS25 OR GREATER LOAD RATED. 180°
3. NOT USED. 5 EA. 3/8" DIA. NOTES:
4. ALL GEOTEXTILE SEAMS SHALL OVERLAP 1 FOOT MIINIMUM, UNLESS OTHERWISE DIRECTED PER MANUFACTURER. PERFORATIONS IN EACH WELL SECTION A. GROUNDWATER OBSERVATION WELLS ARE FOR z
5. 18" OF ASTM C33 FILTER SAND IS MINIMUM EXCAVATION. VALLEY OF MEASUREMENT OF GROUNDWATER LEVELS WITHIN
6. NOT USED. NOTE: ACHD WILL PROVIDE ELECTRONIC MARKERS TO CORRUGATED PIPE. OR NEAR STORM DRAINAGE FACILITIES.
7. ALL SERVICES CONFLICTING W/ SEEPAGE BED MUST BE CONSTRUCTED PER DETAIL 07 OF ACHD SECTION 8200. MARK CORNERS OF SEEPAGE TRENCHES. CONCTRACTOR „ B. THIS DETAIL IS FOR WELLS INSTALLED BY
TO COORDINATE W/ ACHD INSPECTION STAFF FOR 18 PIPE PERFORATIONS DRILLING OR BY EXCAVATED PITS. w
PLACEMENT OF THE MARKERS DURING CONSTRUCTION AND C. LOCATION OF GROUNDWATER WELLS SHALL BE
NOTE: PRIOR TO BACKFILL OF THE SEEPAGE TRENCHES. THE APPROVED BY ACHD
1. DRAINAGE CONTRACTOR SHALL INSTALL 2" SCH 80 WATER CLASS PIPE CONDUITS THROUGH THE SEEPAGE TRENCHES FOR WATER LINES, UNDERGROUND POWER LINES, GAS LINES AND TELEPHONE LINES. SEWER SERVICES SHALL BE PLACED IN LOCATORS ARE TO BE SUPPLIED BY ACHD AND ARE $20 D. OBSERVATION WELLS NOT ALLOWED IN CURB OR 0 Uj
6 DIA. SCH 80 WATER CLASS PIPE THROUGH SEEPAGE TRENCHES. THE PRECISE LOCATION, DEPTH AND SIZE SHALL BE DETERMINED BY THE ENGINEER. EACH; TO BE PAID PRIOR TO APPROVAL OF THE FINAL PLAT. VALLEY GUTTER SECTION. N o
�
2. NO GROUNDWATER WAS ENCOUNTERED IN TEST EXCAVATIONS ON THIS SITE, GROUNDWATER CAN BE EXPECTED GREATER THAN 16' BELOW EXISTING GROUND SURFACE. IF GROUNDWATER IS ENCOUNTERED DURING CONSTRUCTION, THE w o
CONTRACTOR SHALL NOTIFY THE ENGINEER IMMEDIATELY FOR REDESIGN OF SEEPAGE TRENCHES TO PROVIDE 3' MINIMUM CLEARANCE BETWEEN GROUNDWATER AND THE BOTTOM OF THE TRENCH. UNTIMELY NOTIFICATION OF THE ENGINEER MAY MONITOR WELL LOCATIONS Q: Z
RESULT IN ADDITIONAL COSTS TO THE CONTRACTOR. REFER TO GEOTECHNICAL REPORT PREPARED BY SITE CONSULTING, LLC DATED MARCH 19, 2019.
TWO (2) WELLS PER SEEPAGE TRENCH. I
3. ALL MONITOR WELLS SHALL HAVE A CONCRETE APRON POURED AROUND THE CAP. ONE (1) WELL 5' FROM END OF TRENCH V /I
4. CONTRACTOR TO HAVE PERCOLATION TEST PERFORMED BY SOILS ENGINEER AFTER SEEPAGE TRENCH IS FULLY EXCAVATED. IF THE PERCOLATION IS LESS THAN SPECIFIED BY THE SOILS REPORT (PREPARED BY SITE CONSULTING, LLC DATED ONE (1) WELL 50'+ FROM TRENCH, TYPICALLY ACROSS IN
STREET IN SIDEWALK r 1
MARCH 19, 2019) AND ENGINEER (2"/HOUR), CONTRACTOR MAY NEED TO BLAST OR BORE TO CREATE CONDUIT FOR DRAINAGE TO OCCUR OR REDESIGN THE SYSTEM TO ACHIEVE THE REQUIRED INFILTRATION. NOTIFY ACHD INSPECTION STAFF FOR SEE PLAN VIEW, SHEET 4.1-4.4 FOR WELL LOCATIONS v
VERIFICATION OF PERCOLATION RATE WHEN TRENCH IS FULLY EXCAVATED.
NOTE• z
SEE SHEET 4.1-4.4 FOR LOWEST TBC AT SEEPAGE BED ELEVATIONS [WHERE APPLICABLE] 0
TABLE OF DIMENSIONS "E"
DESCRIPTION LENGTH WIDTH DEPTH 18"
PIPE "TOP INVERT SEEPAGELBE'D "BOTTOM E " V100 (c
SEEPAGE BED
ft)
W
SEEPAGE TRENCH #1 149' 9' 10' 2695.24 2697.24 2687.24 5,347 Q
SEEPAGE TRENCH #2 73' 15' 10' 2694.31 2696.31 2686.31 4,394 SITE GEOTECHNICAL REPORT NOTES
SEEPAGE TRENCH '3 170 91 10' 2699.84 2701.84 2691.84 6,124 THAT SEVEN (7) WELL LOGS IN z
# VICINITY INDICATE PRESENCE OF 0
GROUNDWATER 30-60 FEET BELOW I I W
Ld
SEEPAGE TRENCH #4 123' 9' _T 10' 2626.24 2628.24 2618.24 4,417 GRADE. CONTACT DESIGN ENGINEER
IMMEDIATELY IF GROUNDWATER IS ' ^ -
ENCOUNTERED IN EXCAVATIONS. V
Q "
z o 0
m J
Q D W
V) >
Q W
W 0
CLEANOUT LIDS TO BE FLUSH J
WITH SIDEWALK OR LANDSCAPE. -V .J
SEE SHEETS 3.3 & 3.4 FOR TABLE OF SAND AND GREASE ����JJJJ
RIM ELEVATIONS TRAP DIMENSIONS
PROVIDE GRADE RINGS >
AS NEEDED 12" MAX INV. IN. TOP OF INV. OUT VAULT L r
DESCRIPTION ELEV 'C' BAFFLE ELEV 'D' ELEV 'E' SIZE r t■J
STRUCTURE TO -TOP S&G TRAP #1 2694.09 2695.99 2695.24 1000 GAL W W
HAVE HS 25 TRAFFIC OF STRUCTURE 0
RATED TOP. TOP OF BY PRECAST SUPPLIER S&G TRAP #2 2695.16 2695.06 2694.31 1000 GAL W J
ELEVL D S&G TRAP #3 2700.69 2700.59 2699.84 1000 GAL Z
20" S&G TRAP #4 2699.71 2699.61 2626.24 1000 GAL �■■� W n/
L.LL
OJT BOTTOM F r n U
F, OF BAFFLE N �/ I
J 4ti , Plans Are Accepted For Public
Street Construction
DATE:
By s-,amping and signing -,oe improvement plans, -,oe ,�eg;s-lerec 10-18-2023
TYPICAL ORIENTATION VARIES. Engineer ensures the District that the plans conform to all District PROJECT'
SAND/GREASE TRAP SEE PLAN VIEW, policies and standards. Variances or waivers must be specifical- C2023-002
(PER ACHD BMP 01) SHEET 4.1-4.4. ly and previously approved by the District in writing. Acceptance
-NTS- of the improvement plans by the District does not relieve the -SHEET
Registered Engineer of these responsibilities.
BY DATE:
ADA COUNTY HIGHWAY DISTRICT 4o6