HomeMy WebLinkAboutResolution 31-90 RESOLUTION NO. 31-90
RESOLUTION OF THE COUNCIL OF THE CITY OF ATASCADERO
ESTABLISHING A STANDARD
TRENCH DETAIL
WHEREAS, there is no existing trench detail standard for
the City of Atascadero; and
WHEREAS, trenching within City or Colony road rights-of-
way and easements is a common activity within the City; and
WHEREAS, the City has an interest in preserving the roadway
pavement surfaces in a condition suitable for the traveling
public; and
WHEREAS, the City staff is frequently called upon to convey
information concern the proper construction and finishing of
trenches; and
WHEREAS, the City staff must frequently refer to this
information in order to review construction plans.
NOW, THEREFORE, BE IT RESOLVED THAT:
The standard trench detail for the construction and finishing of
trenches within a roadway or easement shall be as delineated on
the attached drawing S-1 titled "Standard Trench Detail. " The
City Engineer is hereby authorized to make minor adjustments to
this Standard to accommodate changing materials specifications,
soil conditions or road characteristics.
On motion by Councilperson Lilley , seconded by
Councilperson Mackey , the foregoing resolution is passed on
the following roll call vote:
AYES: Councilmembers Shiers, Borgeson, Mackey, Lilley and Mayor Dexter
NOES: None
ABSENT: None
ADOPTED: 3/27/90
ATTEST:
LEE DAY A, Ci y Cl rk LI DE ER, Mayor
APPROVED AS TO FORM: APPROVED AS TO CONTENT:
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ARTH R R. MONTAND HENRY ENGE
City Attorney Director o Comm ity
Development
(ATTACHMENT TO RES. 31-90)
Revisions Approvals
DescriptionsBy DoteApproved Council Resolution No.
CUT EXISTING ROADWAY TO PROVIDE VERTICAL
SURFACES AND SQUARE CORNERS. CUT EDGES
WILL BE STRAIGHT AND NEAT IN APPEARANCE. PROVIDE MIN 6" BENCH
MINIMUM 2 INCHES INTO UNDISTURBED
ROAD BED (BOTH SIDES)
ASPHALT OTHERWISE
FINAL GRADE 112"I MATCH EXISTING.
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• � 4a 040Q0 ° OOO0 ° 0\ 0 �o°`0
pOOOO O °Os ` 0 O OOO
1' 95%RELATIVE COMPACTION
MIN 6" CLASS 2
24" AGGREGATE BASE
SEE NOTE BELOW SELECT BACKFILL FREE
CONCERNING TRENCH INSTALL FROM DEBRIS AND
IN EASEMENTS. MAGNETIC DELETERIOUS MATERIAL.
TRACER
TAPE
90% RELATIVE COMPACTION COMPACTED SAND
OR APPROVED
GRANULAR MATERIAL.
6 MIN :\ ~ 6' MIN
8" MAX•• 8 MAX
6" BELOW FL
A CITY ENCROACHMENT PERMIT AND
INSPECTION ARE REQUIRED FOR
GREATEST O.D. DIMENSION TRENCHING IN PUBLIC OR COLONY
AT PIPE JOINTS RIGHTS-OF-WAY.
NOTE: A MINIMUM OF 90% RELATIVE COMPACTION IS PERMITTED IN A NON-ROADWAY TRENCH
WHEN NO STRUCTURES ARE TO BE BUILT OVER THE TRENCH. 1F STRUCTURES ARE TO BE BUILT
OVER THE TRENCH, USE RELATIVE COMPACTIONS SHOWN ON THE TRENCH SECTION ABOVE.
CITY OF ATASCADERO SCALE
NO SCALE
ENGINEERING DEPARTMENT DRAWING No.
t" STANDARD TRENCH DETAIL S-1