HomeMy WebLinkAboutR-435441SEC 14, TWP 23N, R 5E7 W.M.
RRFA NEW FIRE STATION NO, 16
KING COUNTY WATER DISTRICT NO, 90
GENERAL NOTES 15815 SE 128TH STREET, RENTON, WA 98059
1. ALL CONSTRUCTION SHALL CONFORM TO THE REQUIREMENTS OF KING COUNTY WATER
DISTRICT NO. 90 (DISTRICT).
2. ALL CONSTRUCTION AND MATERIALS SHALL CONFORM TO THE REQUIREMENTS SPECIFIED IN
THE CONTRACT SPECIFICATIONS FOR THIS PROJECT.
3. THE LOCATION OF THE EXISTING UTILITIES SHOWN ON THE DRAWING ARE APPROXIMATE.
LOCATION AND PROTECTION OF UNDERGROUND UTILITIES SHALL BE IN ACCORDANCE WITH
CHAPTER 19.122 RCW. CALL 1-800-424-5555 AT LEAST TWO BUSINESS DAYS BEFORE
ANY EXCAVATION.
4. CAUTION - EXTREME HAZARD - CONTRACTOR IS CAUTIONED THAT OVERHEAD ELECTRICAL
SERVICE LINES ARE GENERALLY NOT SHOWN ON THE DRAWINGS. CONTRACTOR IS
RESPONSIBLE FOR DETERMINING THE EXTENT OF ANY HAZARD CREATED BY OVERHEAD
ELECTRICAL POWER AND SHALL FOLLOW ANY APPLICABLE PROCEDURES AS REQUIRED BY
LAW.
5. APPROXIMATE LIMITS WHERE WORK IS REQUIRED IS SHOWN ON PLANS. ACTUAL LIMITS WILL
BE FIELD PAINTED PRIOR TO CONSTRUCTION.
6. ALL SOILS, ORGANIC MATERIAL, AND ASPHALT PAVING THAT IS EXCAVATED IS TO BE
DISPOSED OF OFF -SITE.
7. CONTRACTOR REQUIRED TO PROVIDE A COMPETENT PERSON(S) TRAINED TO IDENTIFY
EXISTING OR PREDICTABLE HAZARDS RELATED TO TRENCH SAFETY, SOIL CONDITIONS, AND
SHORING REQUIREMENTS IN ACCORDANCE WITH WAC 296-155 PART N. REPRESENTATIVES
OF THE DISTRICT SHALL NOT BE REQUIRED TO PERFORM THE ROLE OF A COMPETENT
PERSON FOR THIS PROJECT. NO WORKERS SHALL ENTER A TRENCH OR OTHER EXCAVATION
FOUR FEET OR MORE IN DEPTH WITHOUT A TRENCH SAFETY SYSTEM IN PLACE.
8. VERIFY LOCATION AND DEPTHS OF EXISTING UTILITIES PRIOR TO CONSTRUCTION.
9. CONTRACTOR SHALL NOT OPERATE ANY VALVES OR MAKE ANY CONNECTIONS TO THE
EXISTING WATER SYSTEM WITHOUT PRIOR APPROVAL FROM THE DISTRICT. CONTRACTOR
SHALL GIVE THE DISTRICT A MINIMUM OF 72 HOURS NOTICE PRIOR TO CONNECTING TO
THE EXISTING WATER SYSTEM.
10. CONSTRUCTION SHALL NOT BEGIN WITHOUT WRITTEN APPROVAL FROM THE DISTRICT.
11. ALL BENDS SHALL HAVE RESTRAINED JOINTS OR EQUAL UNLESS OTHERWISE NOTED.
12. ALL PAVEMENT CUTS SHALL BE SAW CUT TO A NEAT LINE. ALL PAVEMENT EDGES SHALL
BE CUT AND TRIMMED SQUARE PRIOR TO FINAL ASPHALT PAVEMENT RESTORATION. ALL
PAVEMENT EDGES SHALL BE SEALED WITH AN APPROVED SEALANT AFTER FINAL PERMANENT
ASPHALT PATCH IS PLACED.
13. CONTRACTOR SHALL SUBMIT A CONCRETE BLOCKING AND SERVICE SHUTOFF TIMING PLAN
FOR REVIEW BY THE DISTRICT PRIOR TO COMMENCING LINE CONSTRUCTION. PLAN SHALL
INCLUDE THE TYPE OF BLOCKING PROPOSED AT EACH LOCATION (PRECAST VS.
CAST -IN -PLACE) AND THE DURATION OF SERVICE SHUTOFF FOR EACH SERVICE AFFECTED
BY CONNECTION WORK. NO SERVICE SHALL BE SHUT OFF FOR A DURATION EXCEEDING 8
HOURS.
14. CONTRACTOR REQUIRED TO FOLLOW ALL CONFINED SPACE ENTRY REGULATIONS PRIOR TO
ENTERING ANY CONFINED SPACE.
15. CONTRACTOR SHALL KEEP ONE-WAY TRAFFIC AT ALL TIMES PER DETAILS ON SHEET 13.
ALL SIGNS AND TRAFFIC CONTROL SHALL BE IN ACCORDANCE WITH THE MANUAL ON
UNIFORM TRAFFIC CONTROL DEVICES FOR STREETS AND HIGHWAYS.
RESTORATION NOTES
1. ALL WORK LOCATED OUTSIDE OF THE EDGE OF PAVEMENT SHALL BE RESTORED TO
EX. CONDITION OR BETTER WITH BACKFILL COMPACTED TO 90% MINIMUM STANDARD
PROCTOR AND HYDROSEEDED WITH NATIVE PLANT SPECIES OR SOD AS NECESSARY.
2. ALL RESTORATION WITHIN THE EDGE -OF -PAVEMENT SHALL BE COMPACTED TO 95%
MINIMUM STANDARD PROCTOR AND BE INSTALLED ACCORDING TO THESE PLANS.
3. TEMPORARY EXCAVATION COVER STEEL PLATES PERMITTED FOR USE.
RECOMMENDED CONSTRUCTION SEQUENCE
FOR EACH PHASE
1. LAYOUT TEMPORARY BYPASS
2. CONNECT TEMPORARY WATER SERVICES TO TEMPORARY BYPASS
3. PASS PURITY TESTING (TEMPORARY BYPASS SYSTEM)
4. CONNECT TEMPORARY WATER SERVICE LINES TO EX. METERS (EX. WATER
MAIN OUT OF SERVICE)
5. PIPEBURST EX. WATER MAIN WITH HDPE PIPE
6. INSTALL PERMANENT WATER SERVICE SADDLES ON HDPE PIPE
7. INSTALL PERMANENT FIRE HYDRANT ON HDPE PIPE.
8. INSTALL PERMANENT WATER SERVICE LINES
9. CONNECT PERMANENT WATER SERVICE LINES TO PERMANENT WATER SERVICE
SADDLES
10. PASS PURITY AND PRESSURE TESTING (PERMANENT SYSTEM)
11. CONNECT PERMANENT WATER SERVICE TO EXISTING WATER METER
(PERMANENT WATER SERVICE RESTORED)
12. PAVEMENT/SHOULDER RESTORATION WHERE NECESSARY
13. REMOVE TEMPORARY BYPASS SYSTEM AND INSTALL PER NEXT PHASE.
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1" = 500'
CONSTRUCTION NOTES
1. ALL MJ TO HDPE CONNECTIONS WILL REQUIRE THE INSTALLATION OF A FUSED MJ
ADAPTER TO THE HDPE PIPE. THESE FITTINGS ARE NOT SPECIFICALLY IDENTIFIED
ON THE PLAN SHEETS.
2. SALVAGE ALL SERVICEABLE ITEMS BEING REPLACED OR REDUNDANT TO THE
DISTRICT. DISPOSE OF ALL REMOVED ITEMS THAT ARE IN POOR OR BROKEN
CONDITION.
3. CONTRACTOR TO ENSURE WATER SERVICE IS AVAILABLE TO ALL CUSTOMERS
THROUGHOUT CONSTRUCTION. SERVICES TO CUSTOMERS MAY BE STOPPED ONLY
DURING CONNECTION TO EXISTING WATER METERS OR AS APPROVED BY THE
DISTRICT.
REQUIRED PIPE MATERIALS
• WATER MAIN PIPE: 8" HDPE IPS DR 11
10" HDPE IPS DR 11
• 1 " SERVICE SADDLE: ELECTROFUSION SADDLE
• 1 " SERVICE PIPE: HDPE DR 7
SHEET INDEX
SHEET NO
SHEET TITLE
C-500
WATER COVER
C-501
WATER PLAN
C-502
WATER PLAN
C-502A
WATER PLAN ALT 1
C-503
WATER DETAILS
C-504
WATER CONNECTION DETAILS
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ARCHITECTURE + PLANNING + DESIGN
6211 ROOSEVELT WAY
NORTHEAST
SEATTLE, WA 98115
tel: (206) 522-3830
fax: (206) 522-2456
1932 First Ave
Suite 500
Imm Seattle, WA 98101
p. 206.725.1211
f. 206.973.5344
engineering pllc www.lpdengine r`Vm
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Sheet Title:
WATER COVER
Scale: As indicated
Project No.: ZI -]z
Date : 08/21/2025
Sheet Number:
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R-435441