3821 (2)7 T �' ��� t •/ } A
IT
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r PERMIT NO.3821 ` 7
Pursuant to Section,14.16.290 of the La Quinta Municipal Code (Ordinance-10 § 1-(part), 1982), street
• closures shall not`be permitted. A minimum of two (2) travel.lane of paved surface shall be •
maintained at all times. - ' r'" .• tad _� 'r
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8. •'s , Prior to excavating; if required, the Permittee shall contact Underground Service,Alert at�1 `800-422 .
4133. It sliall be the Peimittee's responsibility to notify the Public Works. Department of anticipated
excavation which impact City facilities, including.but not limited to traffic signal conduits and"loops;.
" irrigation lines; electrical conduits, and storm drain facilities.y = s
9. ;- Should additional. work, materials, or modifications of the work` be required,in order to meet City" ' y
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",-standards, safety requirements, signage requirements, or to fit actual field conditions, the work shall be'
? performed by the Permittee as directed by and to the satisfaction of the City Engineer at no cost tothe} =
x -'City of La Quinta.
10. Pursuant to Section 14.16.370 of the La Quinta Municipal Code (Ordinance 10 § 1 (part),` 1982), ,,
f �v-: backfill compaction within street rights -of -way shall conform with Section 306=1.3 of the latest edition
-of the S_ tandard Specifications For Public Works Construction (SSPWC), except as otherwise specified',
herein.
Native'material may be used as backfill material provided that minimum compaction,.achieved in the {
manner prescribed herein, is achieved. Backfill shallbe performed by mechanical means; no water
densified compaction via jetting or flooding or, other means shall be allowed. It shall be the Permittee's- -
:'r'esponsibility to provide appropriate geotechnical supervision, testing, and inspection, onsite;'at all '"Z •..z.
Y 'times during backfill .operations.
Backfill compaction shall be achieved by the following conditions:'
A. When a firm foundation is not encountered due to soft, spongy or other unsuitable material; such
material shall be removed to the limits directed by the Geotechnical Inspector and/or the;City:.,.,
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Inspector and the resulting excavation backfilled with pipe bedding material:.
r-•B. Backfill materials shall be brought to or maintained at an appropriate moisture content for
F` compaction. The appropriate moisture content range shall be established at the'.onset of the.
project and ensured prior to use of the materials through.progress testing on the stockpiles.
C.;.`: The first length of trench backfilled shall be backfilled in the presence of the City Inspector. - '
Compaction shall be tested at random depths at approximate three-foot vertical intervals as f {�
backfill is placed to ensure the effectiveness o_ f the compaction methods and to establish the depth
' "of lift_ that can be compacted.
Special Conditions - Permit No. 3822 Page 2 of 5 +-
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PERMIT NO.3821
CVWD
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_ U: If lifts greater than one foot are attempted in this trial length of trench, compaction tests shall be ,x~•�',;«
` taken within the lifts to ensure that the full depth of the'lift is compacted. Upon satisfacto '.! .:
.completion of this portion of trench, the City Inspector shall establish the maximum lift thickness;'
v to be compacted for the remainder of the project.'.'
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E: „ In Subsequent lengths of trench, the frequency of compaction tests shall equal one per'each lift of
backfill, per 300 linear feet of open. trench, at randomly selected locations within We open length
f of trench: ; t,. <•.
`.� F. "The The depth of the randomly selected compaction tests shall also be randomly, select ed'except that**, ,
where multiple tests are required in a given length of french, the tests shall be no closer than three
feet' (vertically) from each other.
G. If any compaction test fails, previously placed backfill (iri the same length of open trench or
previous lengths of trench) which is represented by the failing test (as determined. by, the City -
Inspector), shall be tested for compliance with compaction requirements:
.., H. All costs incurred due to the conditions above shall be borne by the Permittee., Copies'of all test",
results shall be furnished to the City Inspector.44.
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":"• 41: , 'All excavations within City of La Quinta right-of-way shall be backfilled, and temporarily paved jf
r within the existing travel way, at the end of every workday as directed by and to the satisfaction of the
City Engineer for the protection of the public. Lengths of,open trench shall not greatly exceedthat
`•. 3w �: ' which can not be.backfilled in the same day.' Excavated trenches shall not be allowed open.overnight,
,. h ' however, Permittee may leave a length of excavated trench, not to exceed twenty (20) feetin length; t • r`
open overnight at a point where construction will begin the next day, provided that this length of trench,
is completely covered by steel.plating. .
12:; Allvlandscaping, irrigation, decorative rock, decorative concrete, lighting, etc:, shall be replaced to its
original condition.
f 13:.',',Ac'cess and egress to all local properties shall be maintained at all times.
14. Pursuant-to.Section 14.16.375 of the La Quinta Municipal•Code (Ordinance `10 § 1- (part), 1982)1' r ' .
h s permanent pavement replacement shall be completed no later than seven (7) days after.the'completion •a','r
..of the work. Permanent pavement replacement shall conform to the following conditions:'
Existing asphalt concrete pavement shall be sawcut one (1) foot beyond trench edges. Edges shall
=be straight and clean.
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Special Conditions - Permit No. 3822 Page3 of 5 ,
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PERMIT NO.3821, •CVWD
' B. "µ Permanent pavement replacement structural section,•within all trenches,- shall be 1 "thick er,than
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existing of asphalt concrete over the same existing thickness of crushed aggregate base or crushed
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miscellaneous base, meeting the requirements of Sections 200-2.2 and 200-2.4,of the Standard
Specifications for Public Works Construction. The replaced pavement and base material shall be
t * • K",:I.. , compacted to 95% relative compaction and respectively tested, for each 300 linear feet of trench. r
K Verify exact structural replacement section thicknesses with.the City prior to installation
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C:. Permanent pavement replacement shall be installed using a City approved, /4tF max medium
asphalt concrete as the base course lift and a City approved %" max medium finish course lift for
capping. Asphalt concrete mix design shall be approved by the City_prior to its placerrient.'
D. ',: Cold -Mill and Overlay - The existing pavement which was properly protected in place during the
trenching operation located adjacent to the trench saw cut shall be cold -milled to a depth of 0.10
feet with butt joint created next to'the. existing unmilled pavement surface. The cold -milled area
f, and base asphalt concrete in the trench area shall,be overlaid with a City approved C2-AR-4000:"
•: asphalt ,concrete mix. The width of the cold milling area shall be as follows: , • ,t'
For longitudinal trenches located in a parking lane: two (3) feet outside the sawcut reinoval
lines:
• For longitudinal trenches located in a traffic lane: two (3) feet outside the sawcufremoval
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t lines, or to.the lane line striping, whichever is greater.;
• '' .For transverse trenches across existing street: two (2) feet outside the sawcut removal lines.,
If grinding and ca >n o erations are not erformed in the same da as base avin o erations, \ {
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' the base course lift of 3/4" max medium asphalt concrete shall be installed from saw -cut edge to ;: t
i •'saw -cut edge flush with the existing street surface. The base course lift of paving shall not be left,
0.10' low in anticipation of grinding and capping.
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F ` : Any existing lane striping or any existing detour lane striping affected by this resurfacing shall be
4 replaced in kind by the Permittee, as directed by and to the satisfaction of the City .Engineer.. ;
t°'�• Affected traffic signal loops shall be removed and replaced in kind. The finished pavement
surface shall be smooth consistent and shall conform to the surrounding es.
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~ 15 Permittee shall permanently stabilize any.and all soil that was disturbed as a result of work performed
,,,;under this •permit with an approved dust control treatment. Soil stabilization shall be done immediately..'
after,compl_eting the operation. ,•, , ", `
Special Conditions -Permit No. 3822 - s Page 4 of 5