5581 (BLCK)February 9, 2007
Mr. Charles Collins
50-047 Calle Oaxaca
La Quinta, CA 92253
SUBJECT: MINOR ADJUSTMENT 07-585
50-047 CALLE OAXACA
Dear Mr. Collins:
This letter is to report that the Community Development Department has reviewed your
Minor Adjustment application, pursuant to Section 9.210.040 of the City of La Quinta
Zoning Code. .
Request:
To increase the side yard fence height from six feet to six feet and six inches (6'6")
Decision:
Approval is granted for the requested increase in wall height, based on the following
findings:
• MinorAdjustment 2007-585 is consistent with the La Quinta General Plan, in that
the increase proposed does not alter the approved land use for the property, or
affect land use on surrounding similar properties.
• Minor Adjustment 2007-585 is consistent with the intent of the La Quinta Zoning
Code, in that the requested adjustments will retain adequate front and side yard
separations as required under said Zoning Code.
• Processing and approval of Minor, Adjustment 2007-585 is in compliance with the
California Environmental Quality. Acta The adjustments requested fall under
CEQA Guidelines Section 15305(a), which includes minor setback and parcel
adjustments as Categorically Exempt under this Section.
P.O. Box 1504 • LA QUINTA, CALIFORNIA 92247-1504
78-495 CALLE TAMPICO • LA QUINTA, CALIFORNIA 92253
(760) 777-7000 -FAX (760) 777-7101 4
• Approval of Minor Adjustment 2007-585 is .not detrimental to the public health,
safety and general welfare, nor, injurious or incompatible with other properties
and land use in the vicinity. The adjustment has no impact on health or safety
issues, and will not affect physical land use characteristics in the vicinity.
Based on the noted findings, your Minor Adjustment Permit is subject to the following
Conditions:
1. A building permit shall be obtained from the Building & Safety Department prior
to construction of the wall.
Please be advised that this approval relates only to. allowance of the reduction as stated
above, and does not, imply, any entitlement. or approval of a building permit for any
structures shown on the plans on file. All other setback provisions and development
standards of the La Quinta Zoning Code are applicable and shall be adhered to in
preparing plans for building plan check.
If you have any additional questions, please contact me at 760-777-7125.
Sincerely,
ERIC CEJ
Assistant Planner
C: Building & Safety Department
6' -HIGH ORCO, WALL SYSTEM SITE WALL
FOR 80 MPH WIND @a EXPOSURE C
OP77ONAL RAT CAP .
ORCO 6816, 6616, OR 6618 CMU
GROUTED ONLY @, VERT STEEL
?4 VERT DROP-IN BAR @ 24-
01C (36' 0/C FOR 18' LONG
CMU).
06 STD JOINT RFINFORce.*NT, @
14.0/C(3 PEACES) PER'USCSTD.
21-10. USE 95 SID. FOR SLUMP
BLOCK
04 DOWEL @ 24' O/C
(I8' 01C FOR 18 -LONG CMU)
SLOPE - SEE CHART
5' TO DAYLIGHT
"
CONT.
DESIGN CRITERIA:
1. ALLOWABLE SOIL BEARDVG PRESSURE = 1500 PSF
2 ALLOWABLE LATERAL PASS/VE PRESSURE = 150 PCF
3COACREMGROUTSTRENGTH.= 2000 PSF @ 28 DAYS.
4. REINFORCING STEEL : GRADE 40 FOR ?4 BARS AND SMALLER la
GRADE 60 FOR d5 AND LARGER
S. SEISMIlC- ZONE 4, 2 KM FROM TYPE OR B SOURCE:
6. 1500 M MASONRY COMPRESSION STRENGTH.
HALF STRESSES USED - NO SPECIAL IA5PEC77CNN READ.
MIN.. FOOTING DEPTM FOR 5' TQ DAYLIGHT
WALL @
SLOPE TOP
WALL @ WALL @
1 FT. SETR4CK 2 FT. SETBACK
2 701 g6•
2'-0'
3TO1 2'0'
—. —
of 1S
1.CYXNC7it7EBLOCKSHALL CWPVRM TO UBCSTD. 21-4. O RCO STD.
PREC1570N, SPLIT FACS SLUMPED, OR WEDGELOCK BLOCK MAY BE
USED
Z CONCRETE FOR F0077NG SHALL BE 1 _PART CEMENT TO 2-212
PARTS SAND 703-112 PARTS,GR4VEE WITH A; MAXIMUM OF 1-111
GALLONS.OF WATER PER SACC PORTLAND CEMENT SHALL CONFORM
TRS ASTM C 150 TYPE 171V. Fc = 2000 PST .
3.' RL7NFORC7NGSTEEL SHALL BE DEFORMED AND CONFORM TO
ASTM A 615 GRADE 40 FOR'#4 BARS AND SMALLER, GRADE 60 FOR
#5 AND LARGER PROVIDE 40 BAR DIAMETER LAP EOR GRADE 40
RE BAR AND 48 BAR DIAMETER LAP FOR GRADE 60.
4. REBAR SHALL BE CENTERED IN THE CONCRETE BLOCK CIIl IN
WHICH IT IS LOCA7ED .
5. CONCRETE BLOCK SHALL BE LAYED BY A RUNNING BOND
PATTERN WITH VERTICAL CDtMN 177 OF THE CELL S UNO '
6L ALL BLOCK LELLS CONTAHUNG VERTICAL RERAR SKALL BE SOLID
GROUTED.
Z ELSE OSP TYPE S MORTAR PROPORTIONED USING UBC TABLE NO.
21'A 1 PART CEMENT TO 1/2 PART LIME TO 4.1/2 PARTS BAMP, .
LOOSESANO.,
& GROUT FOR CONCRETE BLOCK 7D BE 1 PART Cf?4 NT TO 3
PARTS SAND (GROUT MAY CONTAIN 2 PARTS 318' PFA GRAVEL IF
WEATHER LDNDITiNsARE,FAVORABLEAND BLOCKUNOBSTRGCTED
CSL SIZE IS SUFFICIENT 70 ALLOW GOOD GROUT ROW). WATER
SHALL BEADDLD TO PRC)DUC:E 000D.GROUT ROW WITHOUT
SEGREG4770N OF THE coNsrTumm
9. BLOCK STEM MAYBE WET -SET 1-1/2' INTO THE FOOTING WHILE
THE CYNNCRE7E IS PLA577C. BLOCK STEM MAY BE PLACED TO
EITHER EDGE OF THE TRENCH TYPE FOOTING
10: F007TNG MUST BE PCWRED ON OR INTO UNDISTURBED
m4nvAL SOIL OR ON COMPACTED FILL WITH A MINIMUM
COMPACTION OF 90 %.
11. RRST IA PEC770N 70 BEAF TER:F0077NG TRENCHES ARE
READY FOR CONCRETE AND ALL REQUIRED STEEL IS 77ED IN PEACE
SECOND R71EiPEM NN TO BE WHEN 771E REQUIRED VER77CAL 1S IN
R ACEAND THE BLOCK WALL IS READY TO GROUT.
12. MAXIMUM CONTROL JOINT SPAC7NG. 40' O/COR 20' 0/CIF THE
WALL IS TO BESTECC7 COATED.. , .
2%limm
_IV4?1�
OF C
I
WALL DESIGN FORCES
PER;FBE .1997 UBC5F_/z1'/ C/,?,f
Wind Design Loads:
For a 70 mph wind: Qs = 12.6 psf x .75 (or l Opsf min.) = 10 psf
@ Exp B, P =.62 x 10 psf x 1.3 x 1.0 = 8.1 psf
@ Exp C,P= 1.06x 10psf x 1.3x 1.0= 13.8 psf
For a 80 mph wind: Qs = 16.4 psf x.75 = 12.3 psf
@ Exp B, P = .62 x 12.3 psf x 1.3 x 1.0 = 9.9 ps
@ Exp, C,P=1.06x12.3psf x1.3x1.
For a 90 mph wind: Qs = 20.8 psf x .75 = 15.6 psf
@ Exp C,P= 1.06x15.6psf x1.3x1.0=21.5 psf
Seismic Design Loads:
Assume: Zone 4: Z = .40 Non -building Structure per UBC 1634.5
Soil Profile S (a,b,c ole,and f) so Ca Na .
Site is situated !� Km from a Type A,Osource so Na = /. o
Therefore, V = 0.56 x Ca x I x W = 0.56 x/. 2 x-_yV-x 1.0 x W = ,2_9,6W
Orco Wall- System block wall weights per square foot for 6" wide block using joint
reinforcement per.UBC.Std. 21-10 - NO bond beams, wall grouted ONLY at vertical
steel.
6" grouted @ 48" o/c = 39 psf . V = x 39 psf =
6" grouted @ 40" o/c' = 40 psf V = x 40 psf =
6" grouted @ 32".o/c = 42 psf V=.-241 x 42 psf =
6" grouted @ 24" o/c = 44 psf
6". grouted @ 16" o/c = 48 psf
V =•ft x44psf=
V =.
74 x 48 psf =
10
2AI'l
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Timothy S. Mallis - Civil Engineer Title,: Job #
Orco Block Inc. Dsgnr: Date: 1:14PM, 17 JUL 00
4510 Rutile St. Description
Riverside, Ca. 90509
(909), 685-1521 Scope:
R¢v: 510300
Um 510-0fi03522,.Vera.,:3.22Jurf,999,win32
Pole Embedment in Soil -
(c) 79a3-99 ENERCALC
Description Trench footing.'for 6' high block wa1180 mph Exp C wind condition
General Information
Allow Passive
150.00.pcf
Max Passive
1,500.00 psf
Load duration factor
1.333
Pole is Rectangular
Width
12.000 in
No Surface Restraint
Summary.
Moments @ Surface...
Point load
0.00
ft-#
Distributed load
373.88
Without Surface Restraint..
Required Depth
2.563
ft
Press @ 1/3 Embed...
Actual
172.18
psf '
Allowable
170.85
psf
Point Load
distance:from base
Distributed Load
distance to top
distance lo bottom
Total Moment
Total Lateral
With Surface Restraint..
Req'd Depth
'Pressure @ Base...
Actual
Allowable
Surface Restraint Force
0.00 lbs
0.000 ft
16.90 #/ft
6.660 ft
0.330 ft
373.88 ft-#
106.98 lbs
0.000 ft
Page..._.
Timothy S. Mallis - Civil Engineer
Orco Block Inc.
4510 Rutile St.
Riverside, Ca. 90509
(909) 685-1521
Rev: 510300
User. KWd603522. Ver 5.1.5, 22Ju 1999, wir32
i (c) 1963.99 ENERCALC
Title.: Job #
Dsgnr: Date: 1:1313M, 17 JUL 00
Description
Scope:
Cantilevered Retaining Wall Design Page 1
c:\ec\new6wa11s.ecw: Calculations
Description Orco Wall System 6' high tract wall for 80 mph Exp C wind condition
Criteria
Retained Height -
0.33 ft
Wall height above soil =
6.33 ft
Slope Behind Wal =
0.00: 1
Height of Soil over Toe =
4.00 in
Soil Density =
110.00 pcf
Wind on Stem = 16.9 psf
Design Summary 1
Total Bearing Load= 714 lbs
...resultant ecc. = 7.93 in
Soil Data
Allow Soil Bearing = 1,500.0 psf
Equivalent Fluid Pressure Method
Heel Active Pressure
= 30.0
Toe Active Pressure
= 30,0
Passive Pressure
= 150.0
Water height over. heel
= 0.0 ft
FootingliSoil Frictioi
= 0.300
Soil height to ignore
Footing Thickness
for passive pressure
= 0.00 in
i Footing Strengths &Dimensions
fc = 2,000 psi
Fy = .40,000 psi
Min. As %
= 0.0012
Toe Width
= 0.84 ft
Heel Width
= 1.34
Total Footing Widtt
Rebar Placed at =
Footing Thickness
= 12.00 in
Key Width
= 0.00 in
Key Depth
= 0.00 in
Key Distance from Toe
= 0.00 ft
Cover @ Top = 3.00
in @ Btm.= 3.00 in
Stem ConstructionTop Stem
Stem OK
Design height ft = 0.00
Wall Material Above "Ht" = Masonry
Thickness = 6.00
Soil Pressure @ Toe
= 1,122 psf OK
Rebar Size =
# 4
Soil Pressure @ Heel
= 0 psf OK
Rebar Spacing =
24.00
Allowable
= 1,500 psf
Rebar Placed at =
Center
Soil Pressure Less Than Allowable
Design Data -- - -- - -
- --
ACI Factored@ Toe
= 1,553 psf
fb/FB + fa/Fa =
0.999
ACI Factored.,@ Heel
= 0 psf
Total Force @ Section lbs =
106.9
Footing Shear @ Toe
= 6.4 psi OK
Moment.... Actual ft-# =
373.9
Footing Shear @ Heel
= 2.3 psi OK
Moment..... Allowable =
374.4
Allowable
= 76.0 psi
Shear..... Actual psi =
4.6
Wall Stability Ratios
Overturning
= 1.63 OK
Shear.....Allowable psi =
25.8
Sliding
= 2.60 OK
Bar Develop ABOVE Ht. in =
20.00
Sliding Calcs .(Vertical Component Used)
Bar Lap/Hook BELOW Ht. in =
6.00
Lateral Sliding Force
106.8 lbs
Wall Weight. =
48.0
less 100% Passive Ford - 133.3 lbs
Rebar Depth 'd' in=
2.81
less 100% Friction Force= - 214.3 lbs
Masonry Data ------ -
-
Added Force Req'd
= 0.0 lbs OK
fm psi =
Fs psi =
1,500
20,000
....for 1.5 : 1 Stability
= 0.0 lbs OK
Solid Grouting =
No
_........._............... --
Footing Design Results
--- .. __.
Special InspectionNo
-
Modular Ratio 'n'
25.7878
Toe Heel
Short Term Factor =
1.333
Factored Pressure =
1,553 0 psf .
Equiv. Solid Thick. in=
4.10
Mu': Upward =
536 0 ft-#
Masonry Block Type = Normal Weight
Mu': Downward =
120 132 ft-#
Concrete Data -----------------------
Mu: Design =
415 132 ft-#
fc psi =
Actual 1 -Way Shear =
6.40 2.27 psi
Fy psi =
Allow 1 -Way Shear =
76.03 76.03 psi
Other Acceptable Sizes & Spacings
Toe Reinforcing =
None Spec'd
Toe: Not req'd, Mu < S ' Fr
Heel Reinforcing =
None Spec'd
Heel: Not req'd, Mu < S ' Fr
Key Reinforcing =
None Spec'd
Key: No key defined
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Timothy S. Mallis - Civil Engineer
Title:
Job #
Orco Block Inc.
Dsgnr:
Date: 1:13PM, 17 JUL 00
Description
4510 Rutile St.
Riverside, Ca. 90509
Scope
(909.) 685-1521
Rev: s+aioo
Rm 5103s u. ve.s.,.3.�,�.,sss,W�z Cantilevered Retaining-Wall'Design
Page' 2
(c) (99399 ENERCALc ;
, ,.,
c:\ec\new6walls.ecw:Calculations
Description Orco Wall.:System 6' high tract wall for 80 mph Exp C wind condition
Summary of Overturning&Resisting Forces &.Moments
.....OVERTURNING.....
.....RESISTING.....
Force Distance Moment
Force Distance
Moment
Item lbs ft ft-#
lbs ft
ft-#
Heel Active Pressure = 26.5 0.44 11.8
Soil Over Heel =
30.3. 1.75
53.1
Toe Active Pressure = -26.7 0.44 -11:9
Sloped Soil Over Heel =
Surcharge Over Toe =
Surcharge Over Heel =
Adjacent Footing Load =
Adjacent Footing Load -
Added Lateral Load =
Axial Dead Load on Stem =
0.00
Load @ Stem Above Soil = 107.0 4.50 480.9
Soil'Over Toe =
30.6 0.42
12.8
SeismicLoad =
Surcharge Over Toe =
Stem Weight(s) -
319.7 1.09
346.9
Total = 106'.8 O.T.M. = 480.8
Earth.@ Stem Transitions=
.
Resisting/Overturning Ratio j = 1.63
Footing Weight =
325.5 1.09
353.2
Key Weight
Vertical Loads used for Soil Pressure = 714.4 lbs
=
Vert. Component
=
8.3 2.17
18.1
Vertical component of active pressure used for soil pressure-
-
Total =
- - � -
714.4 lbs R.M.=
784.0
February 9, 2007
Mr, Charles Collins
50-047 Calle Oaxaca
La Quinta, CA 92253
SUBJECT: MINOR ADJUSTMENT 07-585
50-047 CALLE OAXACA.
Dear Mr. Collins:
This letter is to report that the Community Development Department has reviewed your
Minor Adjustment application, pursuant to Section 9.210.040 of the City of La Quinta
Zoning Code. .
Request:
To increase the side yard fence height from six feet to six feet and six inches (66").
Decision:
Approval is granted for the requested increase in wall height, based on the following
findings:
Minor Adjustment 2007-585 is consistent with the La Quinta General Plan, in that
the increase proposed does not alter the approved land use for the property, or
affect land use on surrounding similar properties.
• Minor Adjustment 2007-585 is consistent with the intent of the La Quinta Zoning
Code, in that the requested adjustments.will retain adequate front and side yard
separations as required under said Zoning Code.
• Processing and approval of Minor Adjustment 2007-585 is in compliance with the
California Environmental Quality Acta The adjustments requested fall under
CEQA Guidelines Section 15305(a), which includes minor setback and parcel
adjustments as Categorically Exempt under this Section.
P.O. Box 1504 • LA QUINTA, CALIFORNIA 92247-1504
78-495 CALLE rAMPICO • LA QUINTA, CALIFORNIA 92253
(760) 777-7000 -FAX (760) 777-7101 4
Approval of Minor Adjustment 2007-585. is .not detrimental. to the public health,
safety and general welfare, nor injurious or incompatible with other properties
and land use in the vicinity. The adjustment has no impact on health or safety
issues, and will not affect physical land use characteristics in the vicinity.
Based on the noted findings, your Minor Adjustment Permit is subject to the following
Conditions:
1. A building permit shall be obtained from the Building & Safety Department prior
. to construction of the wall.
Please be advised that this approval relates only to. allowance of the reduction as stated
above, and does not' imply any entitlementor approval of a building permit for any
structures shown on the plans on file. All other setback provisions . and development
standards of the La Quinta. Zoning Code are 'applicable and shall be adhered to in
preparing plans for building plan. check.
If you have any additional questions, please'con* tact me at 760-777-7125.
Sincerely,
ERIC CEJ
Assistant Planner
.C: Building & Safety Department