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MODEL TOXICS CONTROL ACT NOTES AND SPECIFICATIONS:
1. THE CONTRACTOR IS RESPONSIBLE FOR COMPLIANCE WITH ALL PLAN AND SPECIFICATION
PROVISIONS RELATED TO MODEL TOXICS CONTROL ACT APPROVAL OF CONTAMINATED MATERIALS
HANDLING ON THE VULCAN /SEAHAWKS PROPERTY WEST OF THE BNSF. ALL HANDLING AND
DISPOSAL OF CONTAMINATED MATERIALS SHALL BE IN CONJUNCTION WITH SPECIFICATIONS IN
[REFER TO SPECIFIC SEAHAWKS SPECIFICATIONS]. APPROVAL OF ANY STOCKPILING OR
DISPOSAL ON THE VULCAN /SEAHAWKS SITE SHALL BE PROVIDED SOLELY BY THE DESIGNATED
VULCAN /SEAHAWKS REPRESENTATIVE.
2. THE CONTRACTOR SHALL PROVIDE SPECIFIC HANDLING AND DISPOSAL PLANS FOR
CONTAMINATED SOILS CONSISTENT WITH BID SPECIFICATIONS TO THE CITY OF RENTON
CONSTRUCTION MANAGER AT LEAST TO FIVE DAYS PRIOR TO CONSTRUCTION.
1231 FRYAR AVENUE
SUMNER.WASHINGTON 80390
T.253.863.5120 F 263 083.0918
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POSSIBLE CONSTRUCTION SEQUENCE FOR
STORM SYSTEM IMPROVEMENTS,
1. INSTALL TESC IMPROVEMENTS.
2. INSTALL CONSTRUCTION ACCESS EAST OF RIPLEY LANE,
AND WEST OF RIPLEY LANE.
3. CONSTRUCT SOIL CONTAINMENT AREA FOR INITIAL SOILS
TESTING OF JACKING AND RECEIVING PITS.
4. INSTALL DEWATERING SYSTEM, FOR JACKING PIT AND EAST
OF RIPLEY LANE EXC.
5. CONSTRUCT TEMP DETOUR ROAD EAST OF RIPLEY LANE
(SEE SHT C7) EAST ROAD DETOUR DETAIL.
6. CONSTRUCT JACKING PIT (EAST OF KC 84-SS).
7. EXPOSE PILE CAPS- KC 84 "SS.
8. CONSTRUCT RECEIVING PIT (WEST OF BNSF).
9. INSTALL 45" DIA STEEL CASINGS (4) AND CARRIER PIPES.
10. RESTORE WEST Y2 OF RIPLEY LANE.
11. REMOVE TEMP DETOUR ROAD, EAST OF RIPLEY LANE.
CONSTRUCTION SEQUENCE- EAST OF BNSF
(AFTER CASINGS INSTALLED):
1. CONSTRUCT TEMP DETOUR ROAD WEST OF RIPLEY LANE
(SEE SHT C7) WEST ROAD DETOUR DETAIL.
2. INSTALL 4- 36 INCH DIA SD, EAST OF JACKING PIT AREA.
3. EXCAVATE CHANNEL.
4. CONSTRUCT LOG WEIRS.
5. CONSTRUCT STREAM CHANNEL AND BANK ARMOR.
6. INSTALL SLOPE PROTECTION / LANDSCAPE,
7. REMOVE TEMPORARY DETOUR ROAD, WEST.
8. RESTORE RIPLEY LANE ROADWAY/ SHOULDER
(SEE DETAIL PROVIDED) ON SHT DT5.
9. INSTALL GUARD RAIL.
CONSTRUCTION SEQUENCE- WEST OF BNSF*
(AFTER CASINGS INSTALLED):
1. INSTALL DEWATERING SYSTEM FOR OUTLET STRUCTURE W/
GROUNDWATER TREATMENT UNIT.
2. CONSTRUCT TEMPORARY STORMWATER BYPASS (0 TO 35
CFS) FROM 36 INCH DIA STORM DRAIN TO 60 INCH DIA
STORM DRAIN.
3. INSTALL TEMPORARY SANITARY SEWER PUMPS (75 GPM) IN
SSMH 6 AND 4 INCH DIA FORCEMAIN TO SSMH 7.
4. INSTALL 2 CONCRETE DEADMAN ANCHORS ON EXISTING
12"W.
5. INSTALL 2- 12" GATE VALVES, BLOW -OF" ASSEMBLIES,
AND CAPS. SHACKLE GATE VALVES TO DEADMAN ANCHORS.
6. SHEET/ SHORE EXCAVATION FOR OUTLET STRUCTURE.
7. EXCAVATE/ HAUL OFFSITE EXCAVATED MATERIAL, SEE
SPECIFICATIONS.
8. CONSTRUCT OUTLET STRUCTURE.
9. CONSTRUCT 4- 36 INCH DIA STORM DRAIN FROM
RECEIVING PIT TO OUTLET STRUCTURE.
10. CONSTRUCT SANITARY SEWER IMPROVEMENTS.
11. PLACE SITE EMBANKMENT, EAST OF OUTLET STRUCTURE.
12. CONSTRUCT 12 -INCH DIA WATER MAIN IMPROVEMENTS.
13. LANDSCAPE -GRADE AREA DISTURBED BY CONSTRUCTION,
INSTALL CURB/ PAVERS AND HYDROSEED AREA.
*THE CONTRACTOR SHALL SCHEDULE HIS WORK ACTIVITIES,
WEST OF BNSF, SO THAT NO CONSTRUCTION ACTIVITY
OCCURS BETWEEN AUGUST 4 AND SEPTEMBER 1, 2008.
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POSSIBLE CONSTRUCTION SEQUENCE FOR 12 INCH
SANITARY SEWER RELOCATION:
1. INSTALL TEMPORARY 4" (MIN) SANITARY
SEWER FORCEMAIN BETWEEN EXISTING
SSMH'S 6 AND 7, OUTSIDE OF ACTIVE
CONSTRUCTION ZONE.
2. INSTALL TEMPORARY SANITARY SEWER
PUMPS (2) IN SSMH 6 WITH AUXILIARY
POWER. PUMPING RANGE, 0 -75 GPM.
INSTALL SEWER PLUG IN 12 -INCH
SANITARY SEWER SOUTH OF SSMH 6.
3. REMOVE EXISTING 12 INCH SANITARY
SEWER AS REQUIRED FOR 4 -36 INCH
STORM SEWER PIPELINES.
4. INSTALL NEW SSMH 6A WITH EXTERNAL
DROP CONNECTION ON EXISTING SANITARY
SEWER.
5. REMOVE /ABANDON EXISTING SSMH 6A.
6. CONNECT 6" SEAHAWK SIDE SEWER TO
NEW SANITARY SEWER MANHOLE 6A.
7. REMOVE /ABANDON EXISTING 12 -INCH DIA
SANITARY SEWER AS REQUIRED TO
CONSTRUCT 145 FEET OF NEW 12 -INCH
DIA SANITARY SEWER FROM NEW SSMH
6A TO SSMH 6.
8. TEST /FLUSH NEW SECTION OF 12 -INCH
DIA SANITARY SEWER.
9. REMOVE SEWER PLUG, TEMPORARY SEWER
PUMPS IN SSMH 6, ACTIVATE NEW SEWER
PIPELINE.
10. REMOVE TEMPORARY SEWER FORCEMAIN.
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Planning /Building /Public Works Dept.
RIPLEY LANE N. STORM SYSTEM IMPROVEMENT PROJECT 1 wie 3/2
CONSTRUCTION SEQUENCING NOTES
MODEL TOXICS CONTROL ACT
NOTES AND SPECIFICATIONS
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