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GRAIi�L BASL CLASS 'B M,4y BE U/R60 DEoENO/.vG nN
PAVEMENT SECTION (T YP
,V, 75
CONSTRUCT/ON NOTES
ALL WORK AND MATERIAL SHALL CONFORM TO THE "STANDARD AND
SPECIFICATIONS FOR MUNICIPAL PUBLIC WORKS CONSTRUCTION",
WASHINGTON STATE CHAPTER, APWA, LATEST EDITION, AND THE STANDARD
AND SPECIFICATIONS OF THE CITY OF RENTON, DEPARTMENT OF PUBLIC
WORKS.
CONTRACTOR SHALL VERIFY LOCATIONS OF ALL UTILITIES THAT MAY BE
AFFECTED BY THIS WORK AND SHALL NOTIFY APPROPRIATE UTILITY
COMPANIES TO FIELD LOCATE THEIR FACILITIES BEFORE CONTRACTOR
STARTS ANY EXCAVATION.
ALL WORK SHALL BE PERFORMED IN ACCORDANCE WITH THE WASHINGTON
STATE INDUSTRIAL SAFETY AND HEALTH ACT ( WISHA ).
INSPECTION WILL BE PERFORMED BY A REPRESENTATIVE OF THE CITY OF
RENTON. IT SHALL BE THE CONTRACTOR RESPONSIBILITY TO NOTIFY THE
CITY IN ADVANCE, A MINIMUM OF 48 HOURS, FOR INSPECTION.
ALL R/D FACILITIES WILL BE INSTALLED AND IN OPERATION PRIOR TO OR
IN CONJUNCTION WITH ALL CONSTRUCTION ACTIVITY UNLESS THAT
ACTIVITY EXCEEDS THE CAPACITY AND INTENT OF THE EROSION
SEDIMENTATION CONTROL FACILITIES OR UNLESS OTHERWISE APPROVED BY
THE CITY OF RENTON, DEPARTMENT OF PUBLIC WORKS.
THE SITE GRADING AND STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED
ACCORDING TO PLANS WHICH ARE ON FILE IN THE CITY OF RENTON
DEPARTMENT OF PUBLIC WORKS. ANY DEVIATION FROM THE APPROVED PLANS
WILL REQUIRE APPROVAL BY THE CITY ENGINEER OR HIS AGENT,
ALL PIPES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION
ACCORDING TO WASHINGTON STATE SPEC. 7-20.3(1). THIS SHALL INCLUDE
NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE
FOUNDATION MATERIAL AS WELL AS PLACEMENT AND COMPACTION OF
REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SO THAT THE ENTIRE
LENGTH OF THE PIPE WILL BE SUPPORTED ON A UNIFORMLY DENSE
UNYIELDING BASE. IF THE NATIVE MATERIAL MEETS THE REQUIREMENTS
FOR "GRAVEL BACKFILL FOR THE PIPE BEDDING" THE FIRST LIFT OF PIPE
BEDDING MAY BE OMITTED PROVIDED THE MATERIAL IN THE BOTTOM OF THE
TRENCH IS LOOSENED, REGRADED AND COMPACTED TO FORM A DENSE
UNYIELDING BASE. FILL MATERIAL PLACE ABOVE PIPE SHALL BE
COMPACTED TO 95 PERCENT DRY DENSITY.
ALL DISTURBED AREAS SHALL BE SEEDED AND STABILIZED TO PREVENT
ONSITE EROSION AFTER THE COMPLETION OF CONSTRUCTION.
ALL SEDIMENTATION/EROSION FACILITIES MUST BE IN OPERATION PRIOR
TO CLEARING AND SATISFACTORILY MAINTAINED UNTIL CONSTRUCTIONS ARE
COMPLETED AND POTENTIAL ONSITE EROSION HAS PASSED.
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