HomeMy WebLinkAboutWYA Files PG&E
From:PWPermits
To:Roger Chu
Cc:Edwards, Terry
Subject:FW: County Meeting Notes - PID Intertie
Date:Tuesday, October 29, 2019 8:34:20 AM
\[This message has originated from outside of West Yost\]
Hello Mr. Chu,
The PG&E Utility encroachment permit for the Skyway Underground project can be found here:
https://ushare.buttecounty.net/message/iigsJzHV7QADokXdQ5nFpC.
The PG&E Project Manager working on this project is Scot Krenek; Email S4K5@pge.com ,
Mobile: (530)227-0554. The pavement restoration section for the road crossings can be found on
Page 8 of the permit. the conditions for the permit start on page 3. The general alignment can be
found starting on page 29. The alignment is not exactly as shown in the plans as field changes
were made as site conditions required.
If you have any questions feel free to contact us.
Keegan Goff
Butte County Department of Public Works
Engineer, Assistant
kgoff@buttecounty.net
phone: (530) 538-7681
fax: (530) 645-1822
“COUNTY OF BUTTE E-MAIL DISCLAIMER: This e-mail and any attachment thereto may contain
private, confidential, and privileged material for the sole use of the intended recipient. Any review,
copying, or distribution of this e-mail (or any attachments thereto) by other than the County of
Butte or the intended recipient is strictly prohibited. If you are NOT the intended recipient, please
contact the sender immediately and permanently delete the original and any copies of this e-mail
and any attachments thereto.”
Department of Public Works Dennis Schmidt, Director
Radley Ott, Assistant Director
7 County Center Drive T: 530.538.7681
www.buttecounty.net/publicworks
Oroville, California 95965 F: 530.538.7171
PWU19-0057 SPECIAL CONDITIONS
1)The contractor shall provide a third party quality control that shall be done by a certified
lab.
2)
REPLACEMENT AND BACKFILL REQUI
3)All excavation and backfill within the County Right of Way shall conform to the 2010
Caltrans Standard Specifications Section 19 Earthwork.There shall be placed an
impervious backfill, such as sand slurry, in the trench at the transitions into the road
and shoulderprisms on the uphill side of the trench.
4)
and existing grade. The trench in these locations may be backfilled with suitable native
material, concrete popcorn, or 2 sk sand slurry.
5)
existing grade. The trench in these locations must be backfilled with concrete popcorn,
class 2 AB, or 2 sk sand slurryMA as shown in the typical detail.
6)
conform to Caltrans Standard Specifications section 39 Hot Mix Asphalt.Prior to the
milling operation the Contractor shall tie-out existing striping and markings, as needed,
for placement of new striping and markings.
7)-
the grade of the existing road.
8)Profiled thermoplastic traffic stripe (traffic lines) shall conform to the provisions in
Section 84, "Traffic Stripes and Pavement Markings," of the Standard Specifications
and these Special Provisions. The material shall beEnhanced Wet Night Visibility. This
includes both Yellow and White thermoplastic material.
9)When applying thermoplastic over existing thermoplastic and overlapping onto existing
asphalt, a primer, of the type recommended by the manufacturer of the thermoplastic,
shall be applied per Section 84-2.04 "Application."
10)Profiled thermoplastic traffic stripe shall be raised and inverted profile, as designated
on the plans. The thermoplastic material shall be applied at a minimum thickness of
0.11 inch before being profiled. The viscosity, thixotropy, and thickness of the applied
thermoplastic shall besuch that the thermoplastic line shall retain its profile height and
shape, and shall not flow or flatten while cooling or when bearing traffic.
11)The Quality Control Plan shall include the name and qualifications of a Quality Control
Manager, experienced with the equipment, materials, and application of profiled
thermoplastic traffic striping. The Quality Control Manager shall be responsible for the
administration of the Quality Control Plan, including compliance with the plan and plan
modifications. The Quality Control Manager shall be responsible to the Contractor and
shall have the authority to make decisions concerning the quality of the work or
product. Except in cases of emergency and with the written approval of the County, the
Quality Control Manager cannot be a foreman, member of the production or striping
crew, an inspector, or tester on the project during stripe production and placement.
Department of Public Works Dennis Schmidt, Director
Radley Ott, Assistant Director
7 County Center Drive T: 530.538.7681
www.buttecounty.net/publicworks
Oroville, California 95965 F: 530.538.7171
PWU19-0057 SPECIAL CONDITIONS
12)The Quality Control Plan may be modified as work progresses. A supplement shall be
submitted in writing to the Countywhenever· there are changes to quality control
procedures or personnel. Profiled thermoplastic production and placement shall not
resume or continue until the Countyapproves the revisions to the Quality Control Plan
in writing.
13)Prior to application, and in the presence of the Quality Control Manager, the Contractor
shall place a test stripe on roofing felt or other suitable material to demonstrate the
Contractor's abilities to apply a stripe with the desired profile for a minimum length of
50 feet. The Contractor shall not place striping material on the roadway without the
approval of the County. · The Countyshall require the Contractor to delay installation
of the material if, in the opinion of the County, the Contractor does not have suitable
equipment or skills to place the striping materials in a suitable manner. If the
Contractor's initial test stripe is not approved, the Quality Control Manager shall work
with the Contractor to perform the necessary training and adjustments to repeat the
test stripe application to the satisfaction of the County.
14)The Contractor shall provide a profile template or profile height gauge to the County
during application and inspectionof the thermoplastic striping to determine if the
applied thermoplastic line is profiled to match theplans.
15)The Quality Control Manager shall be present during placement of the test stripe, the
initial application, the final application, and at selected intervals as outlined in the
Quality Control Plan. The Quality Control Manager shall immediately alert the
Contractor and the Countyto anything that could affect the performance of the product.
The Quality Control Manager shall ensure that materials are placed in conformance
with accepted procedures.
16)Thermoplastic traffic stripes (traffic lines) and pavement markings shall conform to the
provisions in Sections 84, "Thermoplastic Traffic Stripes and Pavement Markings," of
the Standard Specifications and these Special Provisions. The material shall be
Enhanced Wet Night Visibility. This item includes both Yellow and White thermoplastic
material.
17)When applying thermoplastic over existing thermoplastic, a primer, of the type
recommended by the manufacturer of the thermoplastic, shall be applied per Section
84-2.04 "Application."
18)For each batch of any material to be used for thermoplastic traffic striping and
pavement markings, the Contractor shall submit to the County:
a.Certificate of Compliance under Section 6-1.07, "Certificates of Compliance,"
of the Standard Specifications.
b.Department's Material Engineering and Testing Services notification letter
stating that the material is approved for use.
c.Material Safety Data Sheet
Department of Public Works Dennis Schmidt, Director
Radley Ott, Assistant Director
7 County Center Drive T: 530.538.7681
www.buttecounty.net/publicworks
Oroville, California 95965 F: 530.538.7171
PWU19-0057 SPECIAL CONDITIONS
19)All thermoplastic and bead materials shall be produced free of lead, chromium, and
arsenic. Thermoplastic material shall conformto the requirements in State
Specification PTH-02ALK YD.
20)Enhanced Wet Night Visibility thermoplastic shall meeting the following requirements:
a.Retro-reflectance -Typical initial retro-reflectance values* are shown in Table I
below. Typical retro-reflectivity is averaged over many readings \[med(ft-2)(fc-l
)\] or metric equivalent \[med(m-2)(1ux-l )\].
Table 1 Typical Initial Retro-reflective Values
WhiteYellow
Dry (ASTM E1710)700500
Wet Recovery (ASTM E2177)280250
Wet Continuous (ASTM E2832)12590
b.Typical minimum initial retro-reflectivity values* are shown in Table 2 below.
Typical minimum retro-reflectivity is averaged over many readings \[med(ft-
2)(fc-l)\] or metric equivalent \[med(m-2)(1ux-1)\].
Table 2 -Typical Minimum Initial Retro-reflectance Values
WhiteYellow
Dry (ASTM E1710)500375
Wet Recovery (ASTM E2177)225200
Wet Continuous (ASTM E2832)7560
c.Typical retro-reflectivity results represent average performance for smooth
pavement surfaces. Values represent both and "S" series elements. Results
may vary due to differences in pavement type and surface roughness.
Increased element drop rate may be necessary to compensate for increased
surface area characteristic of rough pavement surfaces.
d.Initial retro-reflectivity performance of pavement striping shall be measured no
sooner than 4-7 days after application. Measurements taken immediately after
application may be different due to excess non-adhered beads and elements
remaining on the line.
21)Any Tree marked with orange paint may be removed from the County Right of Way. All
woody debris shall be removed from the Right of Way and the stump shall be ground to
beflush with existing grade.
Department of Public Works Dennis Schmidt, Director
Radley Ott, Assistant Director
7 County Center Drive T: 530.538.7681
www.buttecounty.net/publicworks
Oroville, California 95965 F: 530.538.7171
PWU19-0057 SPECIAL CONDITIONS
Department of Public Works Dennis Schmidt, Director
Radley Ott, Assistant Director
7 County Center Drive T: 530.538.7681
www.buttecounty.net/publicworks
Oroville, California 95965 F: 530.538.7171
PWU19-0057 SPECIAL CONDITIONS
23) The edge of trench must be a minimum horizontal distance of 6 from the back of any
guardrail.
n
d
R
L
l
l
y
etS trebliF
c
w
e
a
J
t
S
ya
W atsiV
noyoT
nL
r
D
eri
hsk
ro
Y
d
r
r
R
D
E
D
d
u
c
b
i
df S
n
i
e
d
L
I
c
R
t
r
a
f
n
D
P
a
D
r
e
a
l
g
C
N
d
i
A
R
y
y
W
e
R
l
l
a
a
F
V
A
O
TOP
W
n
L
y
k
S
d
e
R
d
R
l
a
e
N
y
a
w
y
d
k
R
S
d
n
u
R
R
l
l
i
M
e
y
o
e
n
D
o
H
d
R
t
d
l
o
b
m
u
H
O
C
I
H
C
F
y
r
e O
w
n
T
L
H
e
S
g
Y
dy
i
z
T
R
a
I
t
L
i
m
C
m
u
S
y
n
a
L
W
d
toP
lR ret
d
e
e
n
i
i
o
f
l
r
o
a
r
c
D
h
e
i
t
i
c
mrW
i
e
s
o
Y
PD h
r
D
n
r
t
i
o
C
s
t
C
e
g
d
d
w
l
n
L
ner
im
ra
vC
e
i
l
wk
l
l
aB o
m
y
L
e
r
y
d
I
Re
l
a
O
R
PRIMARY RISER QUAD
50'-H1PGBM=28.5MPGVL=5.3MOUBM=39.5MOUVL=84LBSPGDE STR.=2.5MINSTALL 1-5/16" PRI. DGINSTALL 20M PISA W/25' LD
50'-2PGBM=20.8MPGVL=853LBSOUBM=411LBSOUVL=12LBS
PRIMARY RISER QUAD
Tuscan Ridge Rock Trenching – Phase 2
Skyway Road Trench Crossings
Work consists of excavation in soil and rock along Skyway Road, installation of PG&E, AT&T & Comcast
conduit and junction boxes, backfill and compaction of trenches and surface restoration. There are
three areas where the trench is required to cross Skyway Road.
1. The western most crossing is near “Camino Cielo” consisting of one 18” wide by 68” deep
trench.
2. Location near 5115 Skyway consisting of one 30” wide by 78” deep trench. This crossing will be
through the paved turn lane.
3. Location at intersection of Skyway Road (East Bound Lanes) and Skyway Crossroad consisting of
one 30” wide by 78” deep trench.
Traffic Control will consist of standard Caltrans T-11 and T-11 Lane Closure on Multilane Conventional
Highways. Our traffic control will close one lane of traffic in either one or both directions during work
hours.
The contingencies below are all related to restoring the roadway and travelled way at the end of shift to
allow traffic to return to all lanes.
Contingencies:
Hard rock slowing excavation
Backfill slurry delivery problem
Precipitation
Resolutions:
There will be rock hammers and other rock removal tools onsite and available during these
crossings to ensure the work progresses.
Trench plates will be stockpiled onsite to place over any unfinished trenches.
Class 2 aggregate base will be stockpiled near the work area to fill and compact in the trench
temporarily until the slurry can be provided.
Work will be stopped, the trench plated and closed lanes reopened to traffic.
The road will never be completely closed to traffic, therefore, emergency vehicles and all other traffic
will be allowed to pass at all times.
PG&E is proposing to conduct the installation of a new high voltage primary overhead conductor
crossing. This type of work is a normal to the power line industry and performed daily across the nation.
For this work the contractor ILB will be performing the work under the guidance of a PGE inspector.
The work description would include the setup of the traffic lane closure in the up-hill and downhill
directions on the #2 lanes. Work hours will be midnight 8-19-19 / 8-20-19 to 3AM on 8-20-19. Upon the
lane closure set up crews will place bucket trucks on each pole. When the line crew notifies the flaggers,
they are ready the flaggers will prepare the hard closure.
Crew members will have the wire needed to cross the road cut long and already connected to the pole
on the east side. Upon a signal from the flagger that the work zone is secured the crew members will
carry the wire across the road and pass it to another crew member in a bucket. The wires will go up one
at a time. Each wire should take 3 minutes. Assuming all 3 wires takes 9 minutes the closure will be
lifted, and traffic can flow freely.
Contingencies:
Mechanical failure of a bucket or inability to cross the road
Trouble for the crew to get the wire sagged high enough to get traffic through
Mechanical failure of line hardware or tools
Un-expected emergency vehicle traffic
rd
Un-expected 3 party with urgent situation
Resolutions:
Where possible finish connection of a single conductor (3 -5 minutes)
Abandon crossing of a single conductor to clear the roadway (2 minutes)
Drop wire on the road, Foreman or lead lineman would give the signal the flagger to allow traffic
to cross wire on the road (30 seconds to 1 minute)
Situation where conductor was partially suspended above road, lineman maneuvers bucket to
let wire off the pole then revert to above actions (3-5 minutes)
traffic flow within a 5-minute interval. Any scenario in which they would cause an extended delay would
be an emergency, in that case our priority would focus on the emergency then shift to getting the road
cleared. With the size of the crews and flaggers we would expect both situations would still be resolved
quickly.