2013-12-03_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 12/3/2013
• Doc Name: Weeekly Construction Quality Assurance
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

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A Cat D8T and a Cat D6 dozer worked on constructing the south perimeter road near stations P2 +00 to P12 +00 and
cutting the neighboring slopes to grade. A Cat CS56 smooth drum roller compacted the slope and road surfaces
per method spec.
Fill material was generated from slope grading near Bench DD north of the Crib Wall for the ADR Road fill and the
Buttress fill area. Fill materials used at the PSSA toe berm mostly originated from cut removed near Bench A
(approximate stations A14-�00 to A16 +00). Fill material from above Bench A near station A4 +00 was placed near
station A5 +00 to A8 +00.
Clay (SLF) Processing:
Cameron Site: Clay processing ended at the Cameron site on Wednesday, November 13, 2013. The clay
processing equipment was moved to the Squaw Gulch Clay Borrow area. Approximately, 244,860 tons of clay / soil
liner fill (SLF) material was produced at the Cameron site. SLF produced from the operation remains stockpiled at
Cameron Site for later removal / use.
Squaw Gulch Clay Borrow Site: Clay processing equipment was setup at the Squaw Gulch Clay Borrow Site
and clay processing began on Saturday November 16, 2013. Approximately, 160 tons of soil liner fill material was
produced during this reporting period at the Squaw Gulch Clay Borrow Site.
Underdrain System:
Secondary Underdrain: Approximately, 300 feet of secondary underdrain was installed in the VLF near / above
station A6 +00.
Approximately a total of 3,854 feet of Secondary Underdrain has been completed. Note that this figure has been
reconciled from the previous week's report based on survey data.
Primary Underdrain: No work was performed on the Primary underdrain during this reporting period.
A total of 1,294.60 feet of Primary underdrain has been completed.
Tree /Slash Clearing Chipping:
Trees were removed along Phase 2 Diversion Channel alignment and were stockpiled in the area for later removal.
R) Underground Workings
Confirmatory drilling was performed during this reporting period on underground working No. 6087, 6282, and 6283.
All drill hole locations were established on a 4 -foot center isolating any voids found. Further remediation efforts will
be ongoing until remediated. Summary of the remediation efforts will follow when remediation is completed.
Remediation blasting occurred at UG 6003. Remediation to continue.
Underground workings No. U6280 and 6036 were prepared for concrete plug placement
28 unknown workings (UG #s U6361 through U6387) were located downslope from the Phase 2 Diversion Channel
and Access Road and 3 unknown workings were located near the south perimeter road (UG No. U6340, U6388 and
U6389). Remediation is pending.
Underground working No. U6335 was excavated to competent bedrock, then backfilled and compacted. The
working is considered remediated.
Q Highway 67
Class 6 material was placed at the edge of the pavement along the shoulders of the Realignment.
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