Plans_100-B-0024.pdf

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BURLINGTON

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PROJECT

SITE

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LAKE

CHAMPLAIN

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VERMONT

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VICINITY MAP

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LOCATION PLAN

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BURLINGTON

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SHEET NO. TITLE

G-001 COVER & INDEX OF DRAWINGS

C-101 GENERAL PLAN

C-102 GENERAL NOTES

C-501 DETAILS

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BURLINGTON HARBOR

BOLLARDS REMOVAL

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BOLLARDS REMOVAL

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STAGING AREA

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STAGING AREA SITE PLAN

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BIKE PATH

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RAILROAD

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LAKEVIEW TERRACE

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NORTH AVENUE

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WARD STREET

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STRONG STREET

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STAGING

AREA

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1. ACCESS TO THE STAGING AREA IS FROM THE NORTHERN PART OF LAKE STREET, CROSSING THE RAILROAD TO THE BIKE PATH (A.K.A ISLAND LINE TRAIL) AND NORTH ALONG THE BIKE PATH TO THE STAGING AREA.

2. A PORTION OF THE OUTLINED STAGING AREA WILL BE ALLOCATED TO THE CONTRACTOR TO PERFORM THE CONSTRUCTION/DEMOLITION ACTIVITIES.

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MAIN STREET

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LAKE STREET

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PARK ST

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W912DS-13-B-0024

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1. ALL SOIL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE INSTALLED IN ACCORDANCE WITH THE STANDARDS FOR TURBIDITY CONTROL, SOIL EROSION AND SEDIMENT CONTROL IN VERMONT, AND WILL BE IN PLACE PRIOR TO ANY DISTURBANCE OF EXISTING CONDITIONS, AND MAINTAINED UNTIL THE PERMANENT WORKS ARE COMPLETE AND ACCEPTED.

2. ANY DISTURBED AREA THAT WILL BE LEFT EXPOSED FOR MORE THAN THIRTY (30) DAYS AND NOT SUBJECT TO CONSTRUCTION ACTIVITY SHALL IMMEDIATELY RECEIVE TEMPORARY TURBIDITY CONTROL, SOIL EROSION AND SEDIMENT

CONTROL WORKS.

3. PERMANENT TURBIDITY CONTROL, SOIL EROSION AND SEDIMENT CONTROL WORKS SHALL BE INSTALLED WITHIN TEN (10)

DAYS AFTER FINAL PROJECT WORKS ARE COMPLETE.

4. FOR THE STAGING AREA ON SHORE AND IMMEDIATELY FOLLOWING INITIAL DISTURBANCE, ALL CRITICAL AREAS SUBJECT TO EROSION WILL RECEIVE A TEMPORARY SEEDING IN ACCORDANCE SOIL EROSION AND SEDIMENT CONTROL STANDARDS IN

VERMONT.

5. PERMANENT SEEDING AND STABILIZATION TO BE IN ACCORDANCE WITH THE "STANDARDS FOR PERMANENT VEGETATIVE COVER FOR SOIL STABILIZATION COVER". SPECIFIED RATES AND LOCATIONS SHALL BE ON THE APPROVED SOIL EROSION AND

SEDIMENT CONTROL PLAN.

6. THE SITE SHALL AT ALL TIMES BE GRADED AND MAINTAINED SO THAT ALL STORM WATER RUNOFF IS DIVERTED TO SOIL

EROSION AND SEDIMENT CONTROL FACILITIES.

7. ALL SEDIMENTATION STRUCTURES (SILT FENCE, INLET FILTERS, AND SEDIMENT BASINS) WILL BE INSPECTED AND

MAINTAINED DAILY.

8. STOCKPILES SHALL NOT BE LOCATED WITHIN 50’ OF A FLOODPLAIN, SLOPE, DRAINAGE FACILITY, OR ROADWAY. ALL STOCKPILE BASES SHALL HAVE A SILT FENCE PROPERLY ENTRENCHED A MINIMUM OF 12-INCHES DISTANT FROM THE TOE OF

SLOPE.

9. A STABILIZED CONSTRUCTION ACCESS SURFACE WILL BE INSTALLED AND CONNECTED TO THE ACCESS LOCATION TO THE

STAGING AREA.

10. BEFORE DISCHARGE POINTS BECOME OPERATIONAL, ALL STORM DRAINAGE OUTLETS WILL BE STABILIZED AS REQUIRED.

11. PAVED ROADWAYS MUST BE KEPT CLEAN AT ALL TIMES.

12. ALL DEWATERING OPERATIONS MUST BE DISCHARGED DIRECTLY INTO A SEDIMENT FILTER AREA. THE FILTER SHOULD BE

COMPOSED OF A FABRIC OR APPROVED MATERIAL.

13. ALL SEDIMENT BASINS WILL BE CLEANED WHEN THE CAPACITY HAS BEEN REDUCED BY 50%. A CLEAN OUT DETAIL WILL BE

PREPARED, SUBMITTED FOR APPROVAL AND A MARKER INSTALLED ON THE SITE.

14. DURING AND AFTER CONSTRUCTION, THE CONTRACTOR WILL BE RESPONSIBLE FOR THE MAINTENANCE OF TURBIDITY

CONTROL, SOIL EROSION AND SEDIMENT CONTROL WORKS.

15. THE COUNTY SOIL CONSERVATION DISTRICT MAY REQUEST ADDITIONAL MEASURES TO MINIMIZE ON-SITE OR OFF-SITE

TURBIDITY, SOIL EROSION AND SEDIMENT CONTROL PROBLEMS DURING CONSTRUCTION.

PRIOR TO ANY LAND DISTURBANCE, AND A PRE-CONSTRUCTION MEETING HELD.

16. THE COUNTY SOIL CONSERVATION DISTRICT MUST BE NOTIFIED, IN WRITING, AT LEAST 72 HOURS PRIOR TO ANY LAND OR

WATER DISTURBANCE, AND THE SCHEDULING OF A PRE-CONSTRUCTION MEETING.

17. APPLY TEMPORARY STABILIZATION MEASURES AS REQUIRED.

18. APPLY PERMANENT STABILIZATION MEASURES AS REQUIRED.

19. SILT FENCE SHALL BE INSTALLED SO WATER CANNOT BYPASS THE FENCE AROUND THE SIDES. THE SILT FENCE SHALL BE CONSTRUCTED TO ENCLOSE ALL CONTRACTOR AREAS. SILT FENCE SHALL REMAIN IN PLACE FOR THE DURATION OF THE PROJECT UNLESS OTHERWISE INSTRUCTED BY THE COUNTY SOIL CONSERVATION DISTRICT. SILT FENCE POSTS SHALL BE 8’-0"

O.C. OR CLOSER.

GENERAL PROVISIONS, SECTION 108 OF THE FY2004 ENERGY AND WATER APPROPRIATIONS ACT STATES “THE SECRETARY IS AUTHORIZED TO REMOVE AND DISPOSE OF OIL BOLLARDS AND ASSOCIATED DEBRIS IN BURLINGTON HARBOR, VERMONT.”

WORK COVERED BY THIS PROJECT CONSISTS OF FURNISHING ALL LABOR AND EQUIPMENT, AND PERFORMING ALL WORK REQUIRED TO DEMOLISH THREE MOORING DOLPHINS, (ALSO KNOWN AS BOLLARDS #3, #4, AND #5) AND ASSOCIATED PIPELINES FROM ABOVE AND BELOW THE LAKE SURFACE TO WITHIN 1FT OF THE LAKE BOTTOM AND CAP WITH CONCRETE. THE DOLPHINS ARE LOCATED OFFSHORE OF BURLINGTON VERMONT. THE CONTRACTOR SHALL TRANSPORT TO AND DISPOSE ALL MATERIAL OFF SITE AT AN APPROVED CERTIFIED WASTE DISPOSAL FACILITY. WORK WILL INCLUDE ALL BEST MANAGEMENT PRACTICES FROM THE LOCAL REGULATORY AGENCIES, INCLUDING THE USE OF FLOATS AND SILT CURTAINS TO KEEP SEDIMENT AND PETROLEUM CONTAINED.

THE LIGHTHOUSE ASSOCIATED WITH BOLLARD #3 WILL BE REMOVED IN ONE PIECE AND PLACED AT A LOCATION TO BE SELECTED BY THE CONTRACTING OFFICER REPRESENTATIVE AT THE STAGING AREA NEAR THE SHORE LINE. THE CONTRACTING OFFICER WILL IDENTIFY THE LIMITS OF ACCESS TO THE STAGING AREA AND LIMITS OF THE STAGING AREA SUBJECT TO THE APPROVAL OF THE LOCAL REPRESENTATIVES OF BURLINGTON. PRIOR TO THE COMPLETION OF THE CONTRACT, THE LOCAL REPRESENTATIVES OF BURLINGTON WILL COORDINATE THE RELOCATION SITE OF THE LIGHTHOUSE AS NEEDED BY THE CITY OF BURLINGTON.

THE BOLLARDS ARE SIMILAR TO THE CONSTRUCTION OF CAISSONS WITH VARIOUS EXISTING PIPES AT THE "THREE WATER SITES" AS SHOWN ON THE DRAWINGS. THROUGHOUT DEMOLITION, CARE WILL BE TAKEN TO CONTAIN ALL HYDROCARBONS WITHIN THE SILT CURTAIN WORKING AREA. PART OF REQUIREMENTS ADDRESSING ENVIRONMENTAL ISSUES IS SUBMITTAL OF A SPILL PREVENTION AND RESPONSE PLAN. BEST MANAGEMENT PRACTICES ADDRESSING THE ENVIRONMENTAL ISSUES SHALL BE REQUIRED TO DEMOLISH THREE MOORING DOLPHINS, (ALSO KNOWN AS BOLLARDS #3, #4, AND #5) AND ASSOCIATED PIPELINES AND CAP WITH

TREMIE CONCRETE A MINIMUM OF 6‐INCHES ABOVE CUT OFF OF PIPES & SHEETING:

A SILT CURTAIN (WATER SURFACE TO LAKE BOTTOM) WILL ENCLOSE THE WORKING AREA

STABILIZING REMOVAL OF DEBRIS PILED AROUND THE BASE OF THE BOLLARD WILL BE DONE TO PREVENT COLLAPSING OF

THE BOLLARD WALLS DURING DEBRIS REMOVAL AND CAPPING PROCEDURES.

AT THE START OF ANY PROCEDURE, THE TURBIDITY OF WATER ESCAPING THE SILT CURTAIN SHOULD BE CHECKED HOURLY

FOR FIRST 3 HOURS. CLEAR LAKE WATER OUTSIDE THE PERIMETER OF THE SILT CURTAINS THEREAFTER WILL BE REQUIRED

AT THE END OF EACH DAY’S OPERATION.

A THIRD LINE OF CONTROL WILL CONSIDER SUPPORT CRAFTS TO PERFORM OIL SKIMMING IN THE EVENT OF AN OIL SLICK

OUTSIDE THE TURBIDITY BARRIER.

THE CONTRACTOR SHALL DEVELOP A PROCEDURE TO DETERMINE THE SOURCE OF AND MINIMIZE ANY OIL SHEEN, IF OBSERVED DURING CONSTRUCTION. THIS PROCEDURE SHALL MEET FEDERAL, VERMONT, AND LOCAL ENVIRONMENTAL

REGULATIONS.

THE PROJECT SHALL INCLUDE ANY ADDITIONAL NEPA WORK AND DOCUMENTATION THAT IS DETERMINED TO BE NECESSARY FOR

THE DEMOLITION AND IMPLEMENTATION OF THE PROJECT.

REMOVAL OF THE EXISTING PIPE CONTENTS WILL BE REQUIRED WITH THE EXCEPTION OF THE RUPTURED PIPE(S). THE CLEANUP OF THE CONTENTS OF THE EXISTING RUPTURED PIPES WILL BE PERFORMED WITHIN A FEW FEET OF THE EXISTING BOLLARD. THE

PROPOSED TREMIE CONCRETE CAP WILL BE USED TO SEAL OIL PIPES LEFT IN PLACE.

THE INTERIOR MATERIAL OF THE BOLLARD WILL BE REMOVED TO NEAR THE LEVEL OF THE EXISTING LAKE BED. ONCE ANY SUSPENDED SEDIMENT RESETTLES, THE DEMOLITION OF THE SHEET PILE/EXTERIOR OF THE BOLLARD WILL OCCUR. THE LAST OF THE DEMOLITION WORK WILL REQUIRE PLACING TREMIE CONCRETE CAP OVER THE AREA OF THE BOLLARD. NO EXCAVATION OF THE

LAKE BED WILL BE PERMITTED.

THE CONTRACTOR WILL BE REQUIRED TO FULFILL ALL SPILL RESPONSE REQUIREMENTS INCLUDED UNDER SECTION 7‐105 IN THE

VERMONT HAZARDOUS WASTE MANAGEMENT REGULATIONS (VHWMR).

IF THE CONTRACTOR REQUIRES A SPILL CLEANUP CONTRACTOR, A LIST OF AVAILABLE CONTRACTORS CAN BE FOUND AT:

http://www.anr.state.vt.us/dec/wastediv/spills/spills_program.htm.

IF LAND DISPOSAL OF THE WASTE WITHIN THE STATE OF VERMONT IS PROPOSED BY THE CONTRACTOR, THE CONTRACTOR WILL FOLLOW ALL VERMONT HAZARDOUS WASTE MANAGEMENT REGULATIONS (VHWMR) WHICH INCORPORATE THE FEDERAL 40 CFR PART 268 LDR REQUIREMENTS BY REFERENCE THROUGH VHWMR SECTION 7‐106(A). IN ADDITION TO WASTES SUBJECT TO THE FEDERAL LDR REQUIREMENTS, VHWMR SECTION 7‐106(B) ALLOWS THE VERMONT AGENCY OF NATURAL RESOURCES SECRETARY TO RESTRICT THE LAND DISPOSAL OF ANY WASTE IN VERMONT IF SUCH DISPOSAL PRESENTS AN UNDUE RISK TO HUMAN HEALTH AND THE ENVIRONMENT OR IS INCOMPATIBLE WITH VERMONT’S GROUNDWATER PROTECTION RULE AND STRATEGY.

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AND EXTEND MINIMUM 1' BEYOND ITS EXTERIOR.

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EROSION AND SEDIMENT CONTROL NOTES

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DEMOLISH 3 MOORING DOLPHINS NOTES

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