-
From: Pollak, Steve C TRAN:EXTo: Sirett, Steve TRAN:EXCc:
Wiseman, Jeff TRAN:EX; Tekano, Murray TRAN:EX; Dowdle, Mike L
TRAN:EX; Wu, Ben S TRAN:EX; Beattie,
Brent C TRAN:EX; Harbicht, Terry N TRAN:EX; Gerraghty, David E
TRAN:EX; Pilkington, Ian TRAN:EX;Valentinuzzi, Joe A TRAN:EX; Elke,
Wayne D TRAN:EX; Dacho, Frank H TRAN:EX; Blixrud, Rick G
TRAN:EX;Evans, Michelle D TRAN:EX
Subject: April 17, 2014 Reassessment at Keremeos Slide, Hwy #3,
10 km West of KeremeosDate: Wednesday, April 23, 2014 2:36:23
PMAttachments:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pdf
8005_Keremeos_Options_8_to_11_Sketches_Apr_23_2014.pdf8005_Keremeos_Options_8_to_11_Rockfall_Simulations_Apr_23_2014.pdf
Hi Steve
Further to our teleconference on April 15, 2014 and as
requested, a re-assessment of theKeremeos slide area was performed
by Rockwork Engineering using a helicopter on April 17, 2014. We
offer the following updated information on rock fall history,
potential rock fall sources andoptions for rock fall control. The
preferred option is presented herein.
In addition to Options 1 to 7 presented in an email dated March
7, 2014 we present four additionalOptions 8, 9, 10 and 11.
Options 8 and 9 were considered in response tothe do nothing to
the road suggestion at the April 15, 2014 meeting. Option 10 is
presented as areduced toe excavation option limiting the length of
excavation from 700 m to 200 m.
Rock Fall History:
Rock falls continue to occur at this site. The rock fall history
has been updated as follows:
December 6, 2003 a 4 m3 rock fall resulted in 4 vehicles damaged
January 27, 2014 a 500 m3 rock fall resulted in 2 vehicles damaged
January 28, 2014 a 20 m3 rock fall on road during cleanup before
berm constructed on
January 30 February 19, 2014 small number of rocks on road March
5, 2014 small number of rocks contained by temporary berm April 16,
2014 small number of rocks contained by temporary berm
The above rock fall history does not include several rock fall
events that were contained on thetalus slope and did not reach the
highway.
.
Page 1 TRA-2014-00126
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PentictonHighlight
PentictonHighlight
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Potential Rock Fall Sources: During the April 17, 2014
reassessment of the Keremeos slide area, potential rock fall
sources wereidentified as shown on the attached photo sheets.
Sources include the talus slope and the rockslope above the talus.
The source area of the most recent rock fall event on April 16,
2014 isprobably near the bottom of a large 250 m3 fractured mass
where there are recent signs of activitywhich have resulted in some
loss of toe support. This fractured mass and various other
potentialrock fall sources adjacent to and below the January 27,
2014 source area are identified on theattached photo sheets.
Options for Rock Fall Control: The following options for rock fall
control were developed with associated cost estimates. Options1 to
7 were previously presented on March 7. We present four additional
Options 8, 9, 10 and 11.
Cost estimates do not include re-paving whichis estimated at
Option 1 Remove temporary berm, no change to slope or highway
costdoes not include cost of restoring site to original
configuration)
Option 2 Construct bench B on slope, no change to highway
cost
Option 3 Excavate toe of slope and deepen ditch to 2 m where
possible (200 m long),highway is 4 lanes cost
Option 4 Excavate toe of slope, deepen ditch to 3 m and remove
one lane (200 m long),highway reduced to 3 lanes -- cost
Option 5 Excavate toe of slope, deepen ditch to 1.5 m, remove
one lane (200 m long) andconstruct wall (100 m long), highway
reduced to 3 lanes cos
Option 6 Excavate toe of slope, deepen ditch and construct wall
without removing a lane(200 m long). There is very little room to
place a wall between S6 and S8 resulting inminimal catchment width
without removing a lane cost
Option 7 Excavate talus to the top of the talus slope (130 m
high) by excavating about52,000 m3 to a depth of 4 m between
sections S6 and S8 (100 m long), and excavate toe ofslope about
10,000 m3 between S5 and S10 (200 m long). Removal of talus to the
top isestimated to cost The result is
and the total cost is estimated to be about
Option 8 No excavation, no change to lane configuration,
construct 2 block high LockBlock wall (100 m long) cost only 2 m3/m
catchment storage,insufficient for significant rock fall event,
full impact on wall may break the wall)
Option 9 No excavation, no change to lane configuration,
construct 3 block high Lock
Page 2 TRA-2014-00126
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s13s13
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PentictonHighlight
PentictonSticky NoteWas anything done? Why or why not?
-
Block wall (100 m long) cost only 3 m3/m catchment
storage,insufficient for significant rock fall event, full impact
on wall may break the wall)
Option 10 Toe excavation for 200 m length, no change to lane
configuration, construct 3block high Lock Block wall (100 m long)
cost only 3 to 6 m3/mcatchment storage, insufficient for
significant rock fall event, full impact on wall may breakthe
wall)
Option 11 Toe excavation, deepen ditch to 1.5 m, move out 4
lanes, build outsideretaining walls if necessary, and construct 4
block high rock fall protection wall (100 m long) cost With paving
costs, the current updated estimated cost is
Also attached are sketches showing Options 8 to 11 and the
results of rock fall simulations tosupport the above descriptions
of Options 8, 9, 10 and 11. Simulations for Option 11 are similar
toresults obtained for Option 5. Regards, S. Pollak, P.
Eng.Rockwork EngineerMinistry of Transportation and
InfrastructureRockwork EngineeringUnit #310 1500 Woolridge
StreetCoquitlam, BCV3K 0B8CanadaOffice: 604-527-2282 (forwarded to
cell)Cell:
Page 3 TRA-2014-00126
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s17 s17
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Photos #1: Overall view showing site areaRef# 10952 SCP April
17, 2014
3.045
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 1 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
To Princeton To Keremeos
January 27, 2014 rock fall source area (500 m3)
Highway #3
RHRS section 137074, A slope 426 points, offset 2.619 to 3.045
km
2.619
Talus slope
Rock slope
Temporary berm at proposed wall
Potential rock fall sources include rock slope and talus
slope
On slope stabilization is not considered safe or practical
Page 4 TRA-2014-00126
-
Photo #2: Overall view showing site areaRef# 10952 SCP April 17,
2014
3.045
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 2 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
RHRS section 137074, A slope 426 points, offset 2.619 to 3.045
km
2.845
Existing temporary berm 200 m long and 1.5 m high, constructed
on January 30, 2014
Proposed rock fall protection wall location 100 m long and 1.5 m
to 3 m high
Optimum storage capacity is 250 to 500 m3
2.9193.019
Page 5 TRA-2014-00126
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Photo #3: View showing existing termporary bermRef# 10952 SCP
April 17, 2014
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 3 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
Existing paved shoulder width 1.0 to 1.2 m
Temporary berm in westbound fast lane (200 m long and 1.5 m
high)
3.045
2.845
Page 6 TRA-2014-00126
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Photo #4: View showing upper site areaRef# 10952 SCP April 17,
2014
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 4 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
January 27, 2014 rock fall source area
Upper rock slope
Lower rock slope
Potential rock fall sources
Page 7 TRA-2014-00126
-
Photo #5: View showing upper rock slope areaRef# 10952 SCP April
17, 2014
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 5 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
January 27, 2014 rock fall source area
Upper rock slope
Fractured mass 250 m3
Potential rock fall sources
Page 8 TRA-2014-00126
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Photo #6: View showing potentially unstable areas in upper rock
slope adjacent to source areaRef# 10952 SCP April 17, 2014
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 6 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
January 27, 2014 rock fall source area
Loose blocks 1 m3 each
Fractured mass 250 m3
Probable source of April 16, 2014
rock fall contained by berm
Potential rock fall sources
Page 9 TRA-2014-00126
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Photo #7: View showing large fractured massRef# 10952 SCP April
17, 2014
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 7 of 7Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Reassessment_Photos_April_17_2014.pptx
April 17, 2014
Photo #8: View showing large fractured massRef# 10952 SCP April
17, 2014
Fractured mass 250 m3Fractured mass 250 m3
Potential rock fall sources
Page 10 TRA-2014-00126
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From: Valentinuzzi, Joe A TRAN:EXTo: Harbicht, Terry N TRAN:EX;
Beattie, Brent C TRAN:EX; Kneale, Tom TRAN:EXSubject: FW: Calculate
Excavation Volumes for Options 3, 4 and 5 -- 10 km west of Keremeos
Jan 27, 2014 rock fall siteDate: Wednesday, March 5, 2014 10:22:45
AMAttachments: Scan_20140304.pdf
image001.png
FYI..Joe J.A.Valentinuzzi, P.Eng, Manager Highway Engineering
ph(250)-828-4256 cell(250)-371-7060 email
[email protected]
please consider the environment before printing this e-mail
From: Valentinuzzi, Joe A TRAN:EX Sent: Wednesday, March 5, 2014
10:20 AMTo: Elke, Wayne D TRAN:EXCc: Irvine, Grant M TRAN:EX;
Ralston, Rod S TRAN:EXSubject: FW: Calculate Excavation Volumes for
Options 3, 4 and 5 -- 10 km west of Keremeos Jan 27,2014 rock fall
site Wayne, I thought you would be the most appropriate person to
work on thesevolume calculations for Rockwork before they decide on
what design they wantto go with. Talk to Rod about background on
this one.
but call me any time if you have questions; You can also call
StevePollack for any info may still need. Thank you.Joe
J.A.Valentinuzzi, P.Eng, Manager Highway Engineering
ph(250)-828-4256 cell(250)-371-7060 email
[email protected]
please consider the environment before printing this e-mail
From: Pollak, Steve C TRAN:EX Sent: Tuesday, March 4, 2014 3:49
PMTo: Valentinuzzi, Joe A TRAN:EXCc: Ralston, Rod S TRAN:EX;
Dowdle, Mike L TRAN:EX; Beattie, Brent C TRAN:EXSubject: Calculate
Excavation Volumes for Options 3, 4 and 5 -- 10 km west of Keremeos
Jan 27, 2014rock fall site Hi Joe We would like to have proposed
excavation volumes based on typical sections attached.
Page 20 TRA-2014-00126
s22
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Volumes are required for two lengths of highway: (refer to
sections S1 to S15 previously defined)
200 m long Sections S5 to S10 700 m long Sections S1 to S15
We need excavation volumes for each of the following options
(see attached sketches): Option 3 Excavate toe of slope and deepen
ditch to 2 m (200 m and 700 m long)Option 4 Excavate toe of slope,
deepen ditch to 3 m and remove one lane (200 m and 700 m
long)Option 5 Excavate toe of slope, deepen ditch to 1.5 m, remove
one lane (200 m and 700 m long)and construct wall (100 m long)
Please use the following assumptions:
Excavation commences at elevation 500 m for sections S3 to S15.
Excavation commences at elevation 480 to 490 m for sections S1 to
S2. Excavated slope angle is 37 degrees and shoulder is 1.25:1.
Wall is between sections S6 and S8.
So I need 6 separate volumes. Please call to discuss any other
details
Thanks, Steve
Page 21 TRA-2014-00126
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Page 32 TRA-2014-00126
-
Highway#3,10kmwestofKeremeosrockfallsiteofJanuary27,2014Proposedoptionsforimprovedrockfallprotection,updatedMarch7,2014
Location:LKISegmentNumber:2210
RFILandmarkNumber:7080LKISegmentName:PrincetontoKeremeos
RFILandmarkName:LuckyRCampgroundLKIkm:55.5to55.6
RFIOffset(km):2.900to3.045
Option#
Description#Hwylanes
SlopeExcav
Volume(m3/m)
Highwayand/orDitchExcav
Volume
TotalExcav
Volume(m3/m)
#ofBlocks
/m
#ofMats/m
ExcavCost$/m3
Costper
Block$
Costper
Mat$
Walllength
m200 700 Benefit
1 Removetemporaryberm 4 0 0 0 0 0 0 0 0 0 None2
Constructbenchontalusslope 4 30 0 30 0 0 10 0 0 0 Marginal
3Excavatetoeofslopeand
deependitch4 100 1 101 0 0 10 0 0 0 Marginal
4Excavatetoeofslopeand
deependitchandremovelane3 100 20 120 0 0 10 0 0 0 Partial
5Excavatetoeofslopeand
deependitchandremovelaneandconstructwall
3 100 21 121 4 0.3333 10 300 1400 100 Full
6Excavatetoeofslopeand
deependitchandconstructwall4 100 0 100 4 0.3333 10 300 1400 100
Impractical
**7Excavatetalustotopoftalus
slopeandexcavatetoeofslope4 520+100 0 520+100 0 0 10 0 0 0
Marginal
BenchA500mlongBenchB700mlong
Lockblockdimensions:1500mmx750mmx750mmBenchC600mlong
Matdimensions:3mx2.7mx0.3m
Slopeexcavationassumes37degreebackslope*200mlengthBenchB
Ditchexcavationassumesshoulderat1.25:1*700mlengthBenchA,BandC
*Lengthofhighway:200mbetweenS5andS10,700mbetweenS1andS15
**Addlaneremovalandwall forfullbenefit,tota
for200mlengthofhighway
*Costforselectedlengthofhighway(200
mor700m)
Page 33 TRA-2014-00126
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H0174 (2005/02) Page _ , _ of _ ,_ Page 39 TRA-2014-00126
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From: Elke, Wayne D TRAN:EXTo: Sirett, Steve TRAN:EXSubject:
Accepted: H3 Rock Slide - Conceptual Design Review
Page 40 TRA-2014-00126
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Page 41 TRA-2014-00126
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Page 44 TRA-2014-00126
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From: Elke, Wayne D TRAN:EXTo: Pollak, Steve C TRAN:EXCc:
Beattie, Brent C TRAN:EXSubject: Hwy 3 - Keremeos Rock Fall Option
3Date: Wednesday, March 12, 2014 2:31:00 PMAttachments: Cross
Sections Option 3.pdf
Wayne ElkeConsulting Services ManagerHighway Engineering,
Southern Interior Region231 - 447 Columbia StreetKamloops, B.C. V2C
2T3Phone: 250-828-4716CellFax: 250-828-4274
Page 45 TRA-2014-00126
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From: Elke, Wayne D TRAN:EXTo: Pollak, Steve C TRAN:EXCc:
Beattie, Brent C TRAN:EXSubject: Hwy 3 - Keremeos Rock Fall Option
5Date: Wednesday, March 12, 2014 2:31:00 PMAttachments: Cross
Sections Option 5.pdf
Wayne ElkeConsulting Services ManagerHighway Engineering,
Southern Interior Region231 - 447 Columbia StreetKamloops, B.C. V2C
2T3Phone: 250-828-4716Cell:Fax: 250-828-4274
Page 46 TRA-2014-00126
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From: Elke, Wayne D TRAN:EXTo: Pollak, Steve C TRAN:EXCc:
Beattie, Brent C TRAN:EX; Valentinuzzi, Joe A TRAN:EX; Sirett,
Steve TRAN:EXSubject: Hwy 3 - Keremeos Rock FallDate: Monday, March
24, 2014 3:00:00 PMAttachments: Cross Sections Option 3 WITH
RETAINING WALL.pdf
Steve Attached are cross sections showing the lock block wall as
per option 5 but with a four lanehighway template. I shifted the
highway towards the river to gain the distance needed for theother
lane. The cross section shows that I can build the fourth lane by
building a three lock blockhigh wall (from station 7+00 to station
9+60) or construct the fill slope with the excavation materialfrom
the project. To build the fill slope requires about 20,000 m3 of
material and the totalexcavation from the project is about 85,000
m3. If you look at the section I may be able to reducethe
excavation at some of the stations. I will discuss with more detail
at the meeting tomorrow. Wayne ElkeConsulting Services
ManagerHighway Engineering, Southern Interior Region231 - 447
Columbia StreetKamloops, B.C. V2C 2T3Phone: 250-828-4716Cell:Fax:
250-828-4274
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From: Pollak, Steve C TRAN:EXTo: Sirett, Steve TRAN:EXCc:
Swales, Dave L TRAN:EX; Dowdle, Mike L TRAN:EX; Seelig, Peter
TRAN:EX; Cossenas, Aristo TRAN:EX; Wu,
Ben S TRAN:EX; Beattie, Brent C TRAN:EX; Harbicht, Terry N
TRAN:EXSubject: Jan 30 Assessment of Keremeos Slide, Hwy #3Date:
Thursday, January 30, 2014 1:56:40 PM
Hi Steve
As discussed with you on site, I would like to summarize results
of our helicopter assessment of therock fall site and future plans
as follows.
An aerial assessment was done today between about 11 am and 12
pm when cloud cover lifted. Theredoes not appear to be any major
residual stability problem in the area of the Jan 27 rock fall.
Thisassessment confirms the photographic analysis that was carried
out previously. There has been no rockfall activity since Jan
28.
Given the latest assessment results and lack of any visible rock
falls, there is no reason to delayopening the highway to traffic.
It may be prudent to continue with the proposed risk
reductionmeasures as planned, including temporary berm, two lanes
closed, spotter and flag people. As coldtemperatures and inactive
slope continue, a reduction in the number of on site personnel may
beconsidered starting tomorrow at the discretion of the
District.
The previously established traffic shutdown criteria appear to
be reasonable:
- basketball size triggers half hour closure- 2 m3 on the
pavement triggers closure and re-assessment
Re-staffing the site is reasonable should warmer temperatures be
expected that could trigger moreactivity. After a day or two of
above freezing weather and noticeable thawing of the slope without
rockfall activity, re-opening to 4 lanes should be considered.
Steve
> On Jan 29, 2014, at 6:25 PM, "Pollak, Steve C TRAN:EX"
wrote:>> I just got an update from Steve. The road will
remain closed tonight. Work at highway level hasstopped and will
continue tomorrow. This is just a precaution for worker safety, no
rock fall activity hasoccurred.>> Steve>>> On Jan
29, 2014, at 4:44 PM, "Pollak, Steve C TRAN:EX"
wrote:>>>> Hi Steve>>>> Further to Brent
Beattie's initial assessment on January 28 of the January 27, 2014
rock fall site,Rockwork Engineering performed additional assessment
work using images of the site taken before andafter the event. The
site is located about 9 km west of Keremeos (RFI landmark 7090,
Lucky RCampground, offset 2.900 to 3.045 km and LKI km 55.5 to
55.6). My understanding is that twovehicles were damaged in the
event consisting of up to about 500 m3 on the pavement, but no
seriousinjuries resulted. A second rockfall of about 20 m3 occurred
on January 28 around 2 pm after cleanupoperations had started.
There has been no more rock fall activity since January
28.>>>> Photographic analysis suggests that the rock
fall source area has generally cleaned itself out andappears to be
in a better stability condition than before the event. While some
residual rock fall activitymay result in the future, it is
generally expected to consist of isolated low volume events with a
similarlikelihood of occurring as from surrounding areas.
Page 48 TRA-2014-00126
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>>>> To confirm our photographic analysis, on
January 29 we attempted to perform an aerial assessmentof the rock
fall source area, but the site was not accessible by helicopter due
to poor weatherconditions. A limited highway level assessment was
proposed today using binoculars, but low cloudprevented that. A
follow-up aerial attempt is scheduled for tomorrow morning with a
forecastedimprovement in weather.>>>> Given the
generally difficult site access and slope conditions, weather and
potential worker safetyconcerns, an on-slope stabilization attempt
is not recommended and not considered practical ornecessary at this
time.>>>> The highway has remained closed since January
27 with limited additional rock fall activity. On thebasis of
engineering assessment results, it was determined that the rock
fall site has reached a degreeof stability that would allow interim
re-opening of the highway to two lanes this evening with
thefollowing risk reduction measures in place:>>>> -
Westbound two lanes remain closed>> - Construct a temporary
rock fall protection berm in the WB fast lane, 150 to 200 m long
and 1 to 2m high or as can reasonably be achieved using available
material nearby.>> - Spotter person with radio and air
horn>> - Flagpersons with the ability to close the highway if
spotter sees rock fall activity>>>> There is a slight
possibility that tomorrow's scheduled aerial assessment may require
changes to theabove measures. If additional rock falls occur in the
meantime overnight, it may be wise to close thehighway again until
further assessment is done.>>>> As winter weather
conditions consisting of cold temperatures and snow now exist at
the site, thereis a possibility that the source area stability has
increased. The stability condition may change over thenext few days
as temperatures fluctuate and freeze-thaw may occur. Within 1 to 2
days it may bepossible to remove the berm and fully re-open the
highway to 4 lanes, if for example warmertemperatures do not result
in significant additional rock fall activity.>>>> Any
previously established safe work procedures are not superseded by
any of the above.>>>> Steve
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Page 52 TRA-2014-00126
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From: Elke, Wayne D TRAN:EXTo: Pollak, Steve C TRAN:EXCc:
Valentinuzzi, Joe A TRAN:EX; Beattie, Brent C TRAN:EXSubject: RE:
Calculate Excavation Volumes for Options 3, 4 and 5 -- 10 km west
of Keremeos Jan 27, 2014 rock fall siteDate: Wednesday, March 12,
2014 11:36:00 AMAttachments: BasePlan with sections Acad
2010.dwg
BasePlan with sections lines.pdfXS - l1p1-design option3.dwgXS -
l1p1-design option3.dxfXS - l1p1-design option5.dwgXS - l1p1-design
option5.dxfimage001.png
Steve I had to create an alignment in order to calculate volumes
as per pdf attached. Section S1 = station 4+90Section S5 = station
7+80Section S10 = station 9+80Section S15 = station 11+90 Option 3
Station 7+80 to Station 9+80 excavation = 62,614 m3Station 4+90 to
Station 11+90 excavation = 159,072 m3 Option 4 Station 7+80 to
Station 9+80 excavation = 55,021 m3Station 4+90 to Station 11+90
excavation = 131,917 m3 Option 5 Station 7+80 to Station 9+80
excavation = 20,230 m3Station 4+90 to Station 11+90 excavation =
50,479 m3 I attached the cross section for option 3 and 5 Wayne
ElkeConsulting Services ManagerHighway Engineering, Southern
Interior Region231 - 447 Columbia StreetKamloops, B.C. V2C
2T3Phone: 250-828-4716Cell:Fax: 250-828-4274
Page 53 TRA-2014-00126
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From: Pollak, Steve C TRAN:EX Sent: Friday, March 7, 2014 8:44
AMTo: Elke, Wayne D TRAN:EXCc: Valentinuzzi, Joe A TRAN:EX; Dowdle,
Mike L TRAN:EX; Beattie, Brent C TRAN:EXSubject: RE: Calculate
Excavation Volumes for Options 3, 4 and 5 -- 10 km west of Keremeos
Jan 27,2014 rock fall site Hi Wayne Can I have an ETA on the volume
calculations? Thanks, Steve From: Valentinuzzi, Joe A TRAN:EX Sent:
Wednesday, March 5, 2014 10:22 AMTo: Pollak, Steve C
TRAN:EXSubject: FW: Calculate Excavation Volumes for Options 3, 4
and 5 -- 10 km west of Keremeos Jan 27,2014 rock fall site Steve,
fyi..Joe J.A.Valentinuzzi, P.Eng, Manager Highway Engineering
ph(250)-828-4256 cell(250)-371-7060 email
[email protected]
please consider the environment before printing this e-mail
From: Valentinuzzi, Joe A TRAN:EX Sent: Wednesday, March 5, 2014
10:20 AMTo: Elke, Wayne D TRAN:EXCc: Irvine, Grant M TRAN:EX;
Ralston, Rod S TRAN:EXSubject: FW: Calculate Excavation Volumes for
Options 3, 4 and 5 -- 10 km west of Keremeos Jan 27,2014 rock fall
site Wayne, I thought you would be the most appropriate person to
work on thesevolume calculations for Rockwork before they decide on
what design they wantto go with. Talk to Rod about background on
this one.
but call me any time if you have questions; You can also call
Steve
Page 54 TRA-2014-00126
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Pollack for any info you may still need. Thank you.Joe
J.A.Valentinuzzi, P.Eng, Manager Highway Engineering
ph(250)-828-4256 cell(250)-371-7060 email
[email protected]
please consider the environment before printing this e-mail
From: Pollak, Steve C TRAN:EX Sent: Tuesday, March 4, 2014 3:49
PMTo: Valentinuzzi, Joe A TRAN:EXCc: Ralston, Rod S TRAN:EX;
Dowdle, Mike L TRAN:EX; Beattie, Brent C TRAN:EXSubject: Calculate
Excavation Volumes for Options 3, 4 and 5 -- 10 km west of Keremeos
Jan 27, 2014rock fall site Hi Joe We would like to have proposed
excavation volumes based on typical sections attached. Volumes are
required for two lengths of highway: (refer to sections S1 to S15
previously defined)
200 m long Sections S5 to S10 700 m long Sections S1 to S15
We need excavation volumes for each of the following options
(see attached sketches): Option 3 Excavate toe of slope and deepen
ditch to 2 m (200 m and 700 m long)Option 4 Excavate toe of slope,
deepen ditch to 3 m and remove one lane (200 m and 700 m
long)Option 5 Excavate toe of slope, deepen ditch to 1.5 m, remove
one lane (200 m and 700 m long)and construct wall (100 m long)
Please use the following assumptions:
Excavation commences at elevation 500 m for sections S3 to S15.
Excavation commences at elevation 480 to 490 m for sections S1 to
S2. Excavated slope angle is 37 degrees and shoulder is 1.25:1.
Wall is between sections S6 and S8.
So I need 6 separate volumes. Please call to discuss any other
details
Thanks, Steve
Page 55 TRA-2014-00126
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From: Pollak, Steve C TRAN:EXTo: Sirett, Steve TRAN:EXCc:
Wiseman, Jeff TRAN:EX; Dowdle, Mike L TRAN:EX; Wu, Ben S TRAN:EX;
Beattie, Brent C TRAN:EX; Harbicht,
Terry N TRAN:EX; Gerraghty, David E TRAN:EX; Pilkington, Ian
TRAN:EXSubject: RE: H3 Rock Slide - Report -- 10 km west of
Keremeos at rock fall site of Jan 27, 2014Date: Friday, March 14,
2014 3:11:52 PM
Hi Steve We can quickly respond with some information for your
report. Rockfall Hazard: The site is located within RHRS section
number 137074 which is from 2.619 and3.045 km east of the Lucky R
Campground (landmark #7080). The centreline of the January 27,2014
rock fall is located within the RHRS section at 3.002 km. This RHRS
section is rated an Ahazard which has a high potential for rock
fall, with a hazard score of 426 points and a risk score of126
points. It is ranked among the top 10% of slopes identified in the
Province and is a goodcandidate for rock fall hazard reduction.
Rockfall History: We have had no rock fall records from the
maintenance contractor for this area. However, the maintenance
contractor may have more information about any unrecorded rock
fallsthat do not meet recording criteria. At this site, the
historical activity has consisted of lowfrequency, high volume rock
fall events which have had high consequences. There have been
atotal of 6 vehicles damaged here, which is a relatively high
number for historically few rock fallevents. On December 6, 2003 a
4 m3 rock fall resulted 4 vehicles damaged. On January 27, 2014
a500 m3 rock fall resulted in 2 vehicles damaged. From January 28
to March 12 a total of 6 morerock falls were either on the pavement
or contained behind a temporary berm on the pavement. Therefore a
total of 8 recorded rock fall events have occurred with potentially
seriousconsequences. Increased Rockfall Activity: As a result of
the January 27, 2014 event there has been an increase inrock fall
activity in this area, and rock falls are continuing to occur. Not
all the rock fall debrisreached the highway, and some of the
remaining debris may continue to ravel down to road level.
Future Risk: Increased rock fall frequency increases the risk of
more vehicle accidents. Rock fallsare originating from well beyond
the highway right-of-way at high elevation, about 400 to 500 mabove
the highway.
Page 56 TRA-2014-00126
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Funding for Proposed Remediation: Normally Rockwork Engineering
funds rock slope stabilizationin high hazard areas. However, the
remedial solution for this site involves some slopereconstruction
that is typically not a function that is funded or carried out
under the ProvincialRockwork Program. Our funding is dedicated to
on-slope stabilization work such as scaling, bolting,blasting,
slope mesh etc. We also fund barriers and catch fences for rock
fall control. RockworkEngineering is willing to fund the
construction and material costs of the proposed rock fallprotection
wall, because this is a fairly common remedial measure that we have
used and fundedin the past. Any slope excavation or lane removal
work is outside of the normal mandate forRockwork, so funding for
this work would have to come from another source. Funding for
guardrailand drainage work would also need to be obtained
elsewhere. Regards, S. Pollak, P. Eng.Rockwork EngineerMinistry of
Transportation and InfrastructureRockwork EngineeringUnit #310 1500
Woolridge StreetCoquitlam, BCV3K 0B8CanadaOffice: 604-527-2282
(forwarded to cell)Cell:
From: Sirett, Steve TRAN:EX Sent: Friday, March 14, 2014 8:38
AMTo: Pollak, Steve C TRAN:EXCc: Wiseman, Jeff TRAN:EXSubject: H3
Rock Slide - Report Hi Steve Got your message, figured I would just
send a quick email as you may be off today. I am going to need to
put together a brief report on the slide and option to justify the
funding. Iwas hoping you could provide me some information on a few
items:
Rank of this area on the rock fall hazard(I know you had said
this was a high ranked area) I will need to explain what has
changed here since last spring that warrants us to now
undertake these improvementso Data on previous rock fall in this
location?? If available. I will also talk to our MCo Why the site
is now unstable enough to warrant a potential wall and reduction of
a
lane?
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o Risk going forward if we do nothingo Any additional pertinent
info??
I have enough information on the different options to put those
into the report but if you couldprovide technical background on the
above topics and anything else you think may be beneficial tobe in
there. I will be sure to have you review the report before sending
it up the ranks. Thanks and have a good weekend! Steve
SirettDistrict Program Manager - Okanagan ShuswapMinistry of
Transportation & Infrastructure#300 1358 St. Paul StreetKelowna
BCV1Y 2E1
Office: 250-712-3666Cell:
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From: Pollak, Steve C TRAN:EXTo: Elke, Wayne D TRAN:EXCc:
Dowdle, Mike L TRAN:EX; Valentinuzzi, Joe A TRAN:EX; Beattie, Brent
C TRAN:EXSubject: RE: Hwy 3 - Keremeos Rock Fall Option 5Date:
Thursday, March 13, 2014 3:01:17 PM
Hi Wayne We need to make some adjustments to reflect
constructability. Between STA 8+40 to 9+10 the cutline goes too
high when we use a 37 degree cut angle. This is a problem for
construction and longterm stability because the upper slope in this
area will be disturbed too much. So for STA 8+40 to STA 9+10 we
need to increase the cut angle to 38 degrees. Please update
sections and excavation volumes accordingly. Thanks, Steve From:
Elke, Wayne D TRAN:EX Sent: Thursday, March 13, 2014 1:33 PMTo:
Pollak, Steve C TRAN:EXCc: Dowdle, Mike L TRAN:EX; Valentinuzzi,
Joe A TRAN:EX; Beattie, Brent C TRAN:EXSubject: RE: Hwy 3 -
Keremeos Rock Fall Option 5 Steve File showing the wall going to
station 9+30 Wayne ElkeConsulting Services ManagerHighway
Engineering, Southern Interior Region231 - 447 Columbia
StreetKamloops, B.C. V2C 2T3Phone: 250-828-4716CellFax:
250-828-4274 From: Pollak, Steve C TRAN:EX Sent: Thursday, March
13, 2014 1:20 PMTo: Elke, Wayne D TRAN:EXCc: Dowdle, Mike L
TRAN:EX; Valentinuzzi, Joe A TRAN:EX; Beattie, Brent C
TRAN:EXSubject: RE: Hwy 3 - Keremeos Rock Fall Option 5
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The wall stops at STA 8+90 for some reason. Can it be shown to
go all the way to 9+30 ? Thanks, Steve From: Elke, Wayne D TRAN:EX
Sent: Thursday, March 13, 2014 1:13 PMTo: Pollak, Steve C
TRAN:EXCc: Dowdle, Mike L TRAN:EX; Valentinuzzi, Joe A TRAN:EX;
Beattie, Brent C TRAN:EXSubject: RE: Hwy 3 - Keremeos Rock Fall
Option 5 Steve Attached are the files with the changes. Wayne
ElkeConsulting Services ManagerHighway Engineering, Southern
Interior Region231 - 447 Columbia StreetKamloops, B.C. V2C
2T3Phone: 250-828-4716Cell:Fax: 250-828-4274 From: Pollak, Steve C
TRAN:EX Sent: Thursday, March 13, 2014 12:19 PMTo: Elke, Wayne D
TRAN:EXCc: Dowdle, Mike L TRAN:EX; Valentinuzzi, Joe A TRAN:EX;
Beattie, Brent C TRAN:EXSubject: RE: Hwy 3 - Keremeos Rock Fall
Option 5 Hi Wayne The wall goes between STA 8+30 and 9+30 Wall is
missing at STA 8+80 Change the title of the plan view, remove
Landslide and replace with Rockfall. Please send me updated plan
and sections. Thanks, Steve
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From: Elke, Wayne D TRAN:EXTo: Pollak, Steve C TRAN:EX; Beattie,
Brent C TRAN:EX; Sirett, Steve TRAN:EX; Valentinuzzi, Joe A
TRAN:EXSubject: RE: Hwy 3 - Keremeos Rock FallDate: Monday, April
14, 2014 1:02:00 PM
Everyone The pdfs are in the following folder for the three and
four lane options. Estimate for the optionshould be in the folder
at the end of the day.
The excavation for the three lane option is about 76,500 m3 but
that is using mostly a 5m wideditch 1.5m deep. The quantity could
be less if the ditch width is reduced at some of the stationsbut
that will be a geotechnical call. The excavation for the four lane
option is about 78,000 m3 but that is using a average 3m wideditch
2m deep. Embankment needed could be up to 40,000 m3 depending on
R/W and pole lines.If a wall is required because of R/W and hydro
lines the embankment needed will be less and therewould be a cost
for the wall. Wayne ElkeConsulting Services ManagerHighway
Engineering, Southern Interior Region231 - 447 Columbia
StreetKamloops, B.C. V2C 2T3Phone: 250-828-4716Cell:Fax:
250-828-4274
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From: Blixrud, Rick G TRAN:EXTo: Valentinuzzi, Joe A TRAN:EX;
Dacho, Frank H TRAN:EXCc: Evans, Michelle D TRAN:EX; Ralston, Rod S
TRAN:EX; Elke, Wayne D TRAN:EX; Irvine, Grant M TRAN:EX;
Sirett, Steve TRAN:EXSubject: RE: Hwy 3 RockfallDate: Wednesday,
March 26, 2014 4:13:29 PMAttachments: image001.png
As discussed, Joe, please carry on and we will seek emergency
response or other funds to cover thecosts....Rick Thanks,Rick
Blixrud,Deputy Regional Director Southern Interior Region, Ministry
of Transportation and Infrastructure 342 - 447 Columbia Street,
Kamloops (250) 828-4843 (250) 828-4204 e-mail:
[email protected] From: Valentinuzzi, Joe A TRAN:EX Sent:
Wednesday, March 26, 2014 3:54 PMTo: Blixrud, Rick G TRAN:EX;
Dacho, Frank H TRAN:EXCc: Evans, Michelle D TRAN:EX; Ralston, Rod S
TRAN:EX; Elke, Wayne D TRAN:EX; Irvine, Grant MTRAN:EX; Sirett,
Steve TRAN:EXSubject: Hwy 3 Rockfall FYI, we are in the process of
designing remedial works for the project andthis will require a
site ground survey. We have contracted out the survey workthrough
our existing As-And-When contract with Focus Corp. This project
ispresently unfunded and therefore we will risk manage the survey
costs untilfunding can be found sometime in the near futureJoe
J.A.Valentinuzzi, P.Eng, Manager Highway Engineering
ph(250)-828-4256 cell(250)-371-7060 email
[email protected]
please consider the environment before printing this e-mail
Page 62 TRA-2014-00126
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From: Harbicht, Terry N TRAN:EXTo: Pollak, Steve C TRAN:EX;
Swales, Dave L TRAN:EXCc: Tekano, Murray TRAN:EX; Beattie, Brent C
TRAN:EX; Gerraghty, David E TRAN:EX; Dowdle, Mike L TRAN:EX;
Wu, Ben S TRAN:EX; Sirett, Steve TRAN:EX; Wiseman, Jeff TRAN:EX;
Dacho, Frank H TRAN:EX; Blixrud, Rick GTRAN:EX; Evans, Michelle D
TRAN:EX; Valentinuzzi, Joe A TRAN:EX
Subject: RE: Revised -- Highway #3, Keremeos Slide, 10 km West
of Keremeos of January 27, 2014, Project 11404-8005Date: Thursday,
February 20, 2014 8:40:00 AMImportance: High
I was on site yesterday afternoon with Dave Swales on my way
back to Kamloops from a rockfallinspection at Vaseaux Lake.
While we were on siteyesterday, we observed several large
boulders falling and bouncing around the top of the talusfan. The
boulders were probably in the 1 to 1.5m diameter range, size wise,
as we could both seeand hear them at road level. They did not make
it down to the highway, and there were alsoseveral large dust
clouds flying around up on the rock faces above the talus slope,
indicating fallthat we were not seeing
Terry N. Harbicht, P. EngManager, Geotechnical and Materials
EngineeringSouthern Interior RegionMinistry of Transportation and
Infrastructure447 Columbia Street, Kamloops, BC, V2C 2T3Telephone:
Office (250) 371-3956, Fax (250) 828-4083, Cell (250)
319-0015email: [email protected]: Pollak, Steve C
TRAN:EX Sent: Tuesday, February 18, 2014 10:54 AMTo: Swales, Dave L
TRAN:EXCc: Tekano, Murray TRAN:EX; Beattie, Brent C TRAN:EX;
Harbicht, Terry N TRAN:EX; Gerraghty, DavidE TRAN:EX; Dowdle, Mike
L TRAN:EX; Wu, Ben S TRAN:EX; Sirett, Steve TRAN:EX; Wiseman,
JeffTRAN:EX; Dacho, Frank H TRAN:EX; Blixrud, Rick G TRAN:EX;
Evans, Michelle D TRAN:EX; Valentinuzzi,Joe A TRAN:EXSubject:
Revised -- Highway #3, Keremeos Slide, 10 km West of Keremeos of
January 27, 2014,Project 11404-8005 Everyone, I made a mistake on
the proposed bench lengths, my calibration factor was out. Revised
benchlengths, volumes and cost estimates are as follows:
Bench A 500 m long, volume 15,000 m3, cost
Bench B 700 m long, volume 21,000 m3, cost
Bench C 600 m long, volume 18,000 m3, cost
Please see attached revised sketch and photo sheets. Sorry about
that.
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Thanks, Steve From: Pollak, Steve C TRAN:EX Sent: Monday,
February 17, 2014 7:15 PMTo: Swales, Dave L TRAN:EXCc: Tekano,
Murray TRAN:EX; Beattie, Brent C TRAN:EX; Harbicht, Terry N
TRAN:EX; Gerraghty, DavidE TRAN:EX; Dowdle, Mike L TRAN:EX; Wu, Ben
S TRAN:EX; Sirett, Steve TRAN:EX; Wiseman, JeffTRAN:EXSubject:
Highway #3, Keremeos Slide, 10 km West of Keremeos of January 27,
2014, Project 11404-8005 File: 32350-33/30.263 Hi Dave As
requested, we have reviewed all of the available information and
offer the following assessmentof the stability of the site
following a rock fall that occurred on January 27, 2014.
Initialassessments were performed by Southern Interior Regional
Geotech on January 28 and byRockwork Engineering on January 29.
Analysis of recent photos was also done. While follow-upassessments
may be made at a later date, at this time further on-site
assessment is not consideredto be beneficial. Initial Rock Fall and
Subsequent Activity: The January 27, 2014 event resulted in full
closure of thehighway and subsequent re-opening to two lanes with
spotters on January 30 followingconstruction of a temporary berm in
the westbound fast lane. Two additional rock falls haveoccurred
after the initial rock fall, resulting in two brief highway
closures to permit cleanup. Anumber of other rock falls occurred
that were contained behind the berm or did not affect thehighway.
While there may be indications of a gradual reduction in rock fall
activity since the initialJanuary 27 event, the site remains more
active in general now than it has in the last 10 years. Itmay be
too early to say whether the rock fall activity has now reduced to
a normal level. Location: The site is located along Highway #3
between Princeton and Keremeos by the LKI and RFIas follows: LKI
Segment 2210LKI Segment Name: Princeton to KeremeosLKI km 55.5 to
55.6 RFI Landmark No. 7080RFI Landmark Name: Lucky R CampgroundRFI
offset: 2.900 to 3.045 km
Page 64 TRA-2014-00126
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Rockfall Accident History: Historically a rock fall occurred on
December 6, 2003 consisting of 4 m3on the highway and resulting in
damage to four vehicles. We have had no other rock falls
reportedfor this site between 2003 and 2013. Rock falls in 2014
have occurred on January 27, February 12and February 14. The
January 27 event consisted of 500 m3 on the highway and resulted
indamage to two vehicles. The remaining events occurred with a
temporary berm in place on thewestbound fast lane and did not
result in accidents. Other on-slope activity was observed to
becontained on the slope or behind the berm. Rockfall Hazard Rating
System (RHRS): The site is identified as section# 137074 in RHRS
with apreliminary A rating a detailed rating numerical score of 426
points. This score indicates thissection of slope has a high rock
fall hazard on a Provincial basis. Weather Conditions Affecting
Rockfalls: The weather at the time of the initial rock fall event
onJanuary 27 was generally dry with temperatures fluctuating around
freezing. A small amount ofmoisture visible near the top of the
source area had dried by the next day. Since the initial
event,temperatures dropped below freezing and snow precipitation
occurred. No additional rock fallactivity occurred when the slope
was frozen, until temperatures rose again to around freezing
onFebruary 12 and again on February 14. It appears that weather
currently may be a factor in therock fall frequency at this site.
It is possible that more activity may occur as temperatures
continueto fluctuate and/or rainfall occurs. Assessment of Rock
Fall Source Area: There are short term and long term considerations
inassessment of the rock fall source area. In the short term, rock
falls are expected to consist ofsmall volume events which may
continue to affect the highway, mainly depending on the
sourceheight. In the long term, rock falls may be larger volume and
are more likely to affect the highway. Rock Fall Source
Stabilization: Stabilization of the rock face in the rock fall
source area is notconsidered a viable or safe option. Access to the
site would require a large and costly stabilizationeffort above the
source area, which would have to commence over 500 m above highway
level. There is a risk that scaling may be ineffective and may
result in more stability problems. Scalingprobably would not
completely eliminate the rock fall problem and is not recommended,
as othermore expensive measures would likely be required in
addition to scaling. Difficult access and loosematerial on the
slope could make worker safety an issue.
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The following volumes and cost estimates are provided:
Bench A 300 m long, volume 9000 m3, cost
Bench B 400 m long, volume 12000 m3, cost
Bench C 350 m long, volume 10500 m3, cost
Regards, S. Pollak, P. Eng.Rockwork EngineerMinistry of
Transportation and InfrastructureRockwork EngineeringUnit #310 1500
Woolridge StreetCoquitlam, BCV3K 0B8CanadaOffice: 604-527-2282
(forwarded to cell)Cell:
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Photo #1: Overall view showing site areaRef# 10920 SCP January
30, 2014
3.045
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 1 of 6Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
File:
8005_Keremeos_Area_Proposed_Work_Photos_February_18_2014.pptx
February 18, 2014
To Princeton
To Keremeos
January 27, 2014 rock fall source area
Highway #3
Proposed bench option A, B or C
RHRS section 137074, A slope 426 points, offset 2.619 to 3.045
km
2.619
Page 67 TRA-2014-00126
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Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 2 of 6Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
Photo #2: Oblique view showing site areaRef# 10920 SCP January
30, 2014
January 27, 2014 rock fall source area
Looking eastTemporary berm
3.045
File:
8005_Keremeos_Area_Proposed_Work_Photos_February_18_2014.pptx
February 18, 2014
Page 68 TRA-2014-00126
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Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 3 of 6Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
Photo #3: View of rock fall source areaRef# 10920 SCP January
30, 2014
January 27, 2014 rock fall source area
File:
8005_Keremeos_Area_Proposed_Work_Photos_February_18_2014.pptx
February 18, 2014
Page 69 TRA-2014-00126
-
Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 4 of 6Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
Photo #4: View showing rock fall debris on highwayRef# 10920 SCP
January 29, 2014
Rock fall debris January 27, 2014 event
Looking west
File:
8005_Keremeos_Area_Proposed_Work_Photos_February_18_2014.pptx
February 18, 2014
Page 70 TRA-2014-00126
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Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 5 of 6Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
Photo #5: View showing temporary berm areaRef# 10920 SCP January
30, 2014
Temporary berm
3.045
Temporary berm constructed on January 30, 2014File:
8005_Keremeos_Area_Proposed_Work_Photos_February_18_2014.pptx
February 18, 2014
Page 71 TRA-2014-00126
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Geotechnical and Materials Engineering, Rockwork Section File:
32350-33/30.263Photos Showing Proposed Work, Project No.
11404-8005
Page 6 of 6Keremeos Area, Hwy #3RFI Landmark No.: 7080, RFI
Landmark Name: Lucky R Campground, RFI Offset: 2.900 to 3.045 kmLKI
Segment: 2210, LKI Segment Name: Princeton to Keremeos, LKI km:
55.5 to 55.6
Photo #6: View showing locations of proposed bench option A, B
and CRef# 10920 SCP January 30, 2014
Bench A 500 m long Bench B 700 m long Bench C 600 m long
3.0452.619
Revised February 18, 2014File:
8005_Keremeos_Area_Proposed_Work_Photos_February_18_2014.pptx
February 18, 2014
Page 72 TRA-2014-00126
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