HomeMy WebLinkAbout110.1 VARIES: 4.5' MIN.
LANE LINE
MARKING SAWCUT AFTER BACKFILL
DEPTH OF EXISTING PAVEMENT
2" - 6" HMA � � �
{5EE NOTE 2) �� EDGE OF PAVEMENT, EDGE
� OF CURB & GUTTER, OR
MIN. MIN. CENTER OF LANE MARKING
2" HMA (SEE NOTE 2) 6" CRUSHED SURFACING TOP COURSE
(CSTC) (9-03.9(3)) PER WSDOT STANDARD
2" SAWCUT AND REMOVE SPECIFCATIONS, COMPACTED TO 95%
OR PLANE, SEAL WITH MODIFIED PROCTOR
AR-4000W
CSTC, BANK RUN GRAVEL FOR TRENCH BACKFILL
(9-03.19), GRAVEL BORROW (9-03.14(1)) PER
WSDOT STANDARD SPECIFICATIONS OR NATIVE
MATERIAL IF APPROVED IN WRITING BY ENGINEER
BASED ON GEOTECH REPORT, COMPACTED TO
WIDTH OF TRENCH AS REQUIRED BY SIZE OF � 95� MODIFIED PROCTOR.
PROPOSED IMPROVEMENT (SEE WSDOT
STANDARD SPECIFICATION 2-09.4) PLUS AN PIPE ZONE BEDDING MATERIAL AND COMPACTION AS
ALLOWANCE FOR ANY SHORING. SHORING, IF REQUIRED BY THE WSDOT STANDARD 5PECIFICATIONS
NEEDED, SHALL MEET THE REQUIREMENTS OF FOR THE TYPE OF IMPROVEMENT INSTALLED, EXCEPT:
WSDOT STANDARD SPECIFICATION 7-08.3(1)B �� * FOR STORM AND WATER PIPE, PER STD PLAN 220.0
* FOR SANITARY SEWER, PER STD PLAN 405
TRENCH WIDTH * FOR JOINT UTILITY TRENCH, SAND WITH 95�
PASSING A #4 SIEVE AND LESS THAN 5� PASSING
A #200 SIEVE
NOTES:
1. WHEN EXISTWG PAVEMENT IN A LANE REQUIRING A FULL WIDTH REPLACEMENT IS BROKEN OR DETERIORATED
TO A PAVEMENT CONDITION INDEX RATING OF 70 OR LESS, THE EXISTING PAVEMENT IN THAT LANE, AND
FOR THAT DISTANCE SO CLASSIFIED, SHALL BE REMOVED AND REPLACED WITH HMA MATCHING THE DEPTH
USED IN THE EXISTING STREET OR THE DEPTH PER CITY STANDARD, WHICHEVER IS GREATER.
2. PRINCIPAL/ MINOR/COLLECTOR, ARTERIAL, & INDUSTRIAL ACCESS STREETS - MATERIAL AND THICKNESS
SHALL BE HMA CL �" PG 64-22 AND MATCH EXISTING THICKNESS AND IN NO CASE LESS THAN 6".
RESIDENTIAL ACCESS STREETS - HMA CL �" PG 64-22. THE THICKNESS SHALL BE THAT OF THE EXISTING
PAVEMENT SECTION AND IN NO CASE LESS TNAN 4".
3. WHEN THE "SAWCUT AFTER BACKFILL" ENCROACHES INTO AN ADJACENT LANE, CURB & GUTTER OR
SHOULDER, THE AFFECTED LANE SHALL BE PLANED AND OVERLAID WITH HMA FULL WIDTH, THE CURB &
GUTTER SHALL BE REMOVED AND REPLACED, OR THE SHOULDER SHALL BE PLANED OR REMOVED AND
OVERLAID WITH HMA.
4. IF TRENCH UNDERMINES EXISTING SIDEWALK AND/OR CURBS, THEN THE SIDEWALK AND/OR CURB SHALL BE
REPLACED FROM EXPANSION JOINT TO EXPANSION JOINT.
5. IF TRENCHING THROUGH EXISTING DRNEWAY OR SIDEWALK RAMP, THE DRIVEWAY OR SIDEWALK RAMP SHALL
BE REPLACED TO MEET ADA STANDARDS.
TYPICAL LONGITUDINAL PATCH
S"PD. PLAN - 110.1
�• PUBLIC WORKS FOR FLEXIBLE PAVEMENT OR P1'R �;1;D
DEPARTMENT RIGID PAVEMENT WITH OVERLAY �� ,�
!.� �