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1" = 50 FT
STORM SEWER NOTE
THE STORM SEWER SYSTEM SHALL BE CONSTRUCTED PER
DESIGN SPECIFIED AND AS APPROVED BY THE CITY OF
CARMEL ON THE FINAL APPROVED CONSTRUCTION PLANS.
DESIGN SPECIFIED AND AS APPROVED BY THE CITY OF
CARMEL ON THE FINAL APPROVED CONSTRUCTION PLANS.
DEVIATIONS FROM THE APPROVED DESIGN SHALL ONLY BE
PERMITTED DUE TO SPECIAL CIRCUMSTANCES OR
DIFFICULTY DURING CONSTRUCTION AND WILL REQUIRE
PRIOR FIELD APPROVAL FROM A DESIGNATED
REPRESENTATIVE OF THE CITY OR CARMEL IN ADDITION TO
SUPPLEMENTAL APPROVAL BY THE DESIGN ENGINEER. AN
EXPLANATION OF ANY SUCH DEVIATION SHALL BE
INCLUDED AS A REQUIREMENT ON AS-BUILT/RECORD
DRAWINGS SUBMITTED FOR RELEASE OF PERFORMANCE
GUARANTEES. APPROVED DESIGN SLOPES IDENTIFIED AS
GENERATING VELOCITIES OF 2.5 FPS OR LESS AND 10 FPS OR
GREATER (AT FULL FLOW CAPACITY) SHALL REQUIRE
AS-BUILT CERTIFICATION AT THE TIME OF CONSTRUCTION,
PRIOR TO BACKFILLING THE PIPE. THE CONTRACTOR IS
INSTRUCTED TO AS-BUILT EACH SECTION OF STORM PIPE
AS IT IS BEING INSTALLED TO ENSURE COMPLIANCE WITH
THE DESIGN PLANS. AND AS APPROVED BY THE CITY OF
CARMEL.
FULL DEPTH
GRANULAR BACKFILL
CONTRACTOR SHALL VERIFY DEPTHS OF ALL EXISTING
ONSITE UTILITIES PRIOR TO CONSTRUCTION TO CONFIRM
THERE IS NOT ANY CONFLICTS WITH OTHER UTILITIES, STORM
SEWERS OR STREETS. CONFLICTS AFTER CONSTRUCTION
BEGINS ARE SOLELY THE CONTRACTOR'S RESPONSIBILITY.
NOTES:
ALL STORM STRUCTURES TO RECEIVE SOLID LID
CASTINGS ARE TO BE CONSTRUCTED TO PROVIDE
ONE 4" RISER RING NO MORE, NO LESS TO
ACHIEVE PLAN RIM GRADE.
ALL YARD INLETS ARE TO BE CONSTRUCTED AT
A TOLERANCE OF +0.00' TO -0.20' OF PLAN GRADE.
ALL STORM SEWER CASTINGS SHALL BE
LABELED
"DUMP NO WASTE-DRAINS TO WATERWAY"
ALL SSD'S (SUBSURFACE DRAINS) WILL NEED TO
BE DOUBLE WALL SMOOTH BORE PERFORATED
(HDPE) PIPE.
DEBRIS GUARDS ARE TO BE INSTALLED ON ALL
OPEN ENDED INLETS.
FOR STORM STRUCTURE SIZING AND CASTING
TABLE SEE DETAIL D-18 ON SHEET C801.
ALL STORM SEWERS WITHIN PUBLIC
RIGHT-OF-WAY SHALL BE RCP CLASS III.
FOR INSTALLATION OF STORM UNDER CITY
STREETS AND COVER REQUIREMENTS, SEE SHEET
No. C801 ON THE TRENCH DETAIL.
ALL TOP OF CASTING ELEVATIONS FOR STORM
SEWERS SHALL BE CONSTRUCTED WITH A
72/(5$1&(2))7
MINIMUM COVER FOR PIPE CROSSINGS OF CITY STREETS:
THE MINIMUM COVER FROM THE TOP OF THE INSTALLED
PAVEMENT TO THE TOP OF THE INSTALLED PIPE SHALL BE
THE PAVEMENT SECTION, THICKNESS (ALL BITUMINOUS AND
AGGREGATE MATERIAL ABOVE THE SUBGRADE) PLUS 1'-0",
BUT UNDER NO CIRCUMSTANCES SHALL THE COVER ALONG
ANY PART OF THE PIPE FROM THE FINAL PAVEMENT
ELEVATION TO THE TOP OF THE PIPE BE LESS THAN 2.5 FEET.
STORM SYSTEM
WITH THE EXCEPTION OF REAR YARD SSDs, STORM
SEWERS FOR THIS DEVELOPMENT WILL BE PUBLIC.