HomeMy WebLinkAboutReso 1969-5069RESOLUTION NO• 5069
RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CHULA
VISTA, REVISING THE STANDARD SPECIFICATIONS AND
DRAWINGS, AS APPROVED BY RESOLUTION NO. 4712, TO
COVER STANDARDS TO BE OBSERVED IN MAKING CUTS AND
FILLS, AND PLANTING SLOPES AND MAKING SOIL TESTS,
IN CONNECTION WITH THE PROVISIONS OF ORDINANCE NO,
1163, ADOPTED ON THE 21st DAY OF JANUARY, 1969
The City Council of the City of Chula Vista does hereby
resolve as follows:
WHEREAS, by Resolution No. 4712, adopted on the 5th day of
March, 1968, the City Council of the City of Chula Vista approved and
adopted certain standard specifications and drawings to cover the
construction of public improvements in the City of Chula Vista, and
WHEREAS, subsequent to the adoption of said resolution, the
City Council adopted Ordinance No. 1163, relating to land grading,
excavations and fills in the City of Chula Vista, and
WHEREAS, the adoption of said Ordinance No. 1163 necessitates
the preparation and approval of certain drawings depicting standards
to be observed in making cuts and fills, in the planting of slopes,
and in making certain soil tests under the provisions of said ordinance.
NOW, THEREFORE, BE IT RESOLVED that those certain standard
specifications and drawings adopted and approved by Resolution No. 4712
on the 5th day of March, 1968 be, and the same are hereby amended by
including therein Drawings No. 601-A, 601-B, 602-A, 602-B, 603, 604,
605, 606, 607-A, 607-B and 607-C, as set forth in Exhibit "A" attached
hereto and made a part hereof, copies of which are on file in the Office
of the Director of Public Works and the Office of the City Clerk.
Presented by Approved as to form by
~.
f ~ ~ - --~ ~ _~ ~~'' ~.~', ~ ~ e
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L~~n o~e~-Director tsf Public George D , indberg, City Attorney --'
Wor;cs ,
ADOPTED AND APPROVED by the CITY COUNCIL of the CITY OF CHULA
VISTA, CALIFORNIA, this 25th day of February 19 69 by the
following vote, to-wit:
AYES : Councilmen Scott, Sylvester, Hamilton, McCorquodale, McAllister
NAYES : Councilmen None
ABSENT: Councilmen None _ ,,...-----.,.
~ ~ x` j~ ~ __ tel.
J~ ,~, ~--- ayor of th'e City of Chu Vista
ATTEST ~/ .~C-c.-r_-<_t.~~^ f.
City Clerk
STATE OF CALIFORNIA )
COUNTY OF SAN DIEGO ) ss,
CITY OF CHULA VISTA )
I~ City Clerk of the City of Chula
Vista, California, DO HEREBY CERTIFY that the above is a full, true and
correct copy of Resolution No. and that the same has not been
amended or repealed. DATED
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PROFILE-TYPICAL FILL SLOPE CLEARANCE- FILL SLOPE
1. SETBACKS --- FILLS SHALL BE SET BACK FROM PROPERTY LINES AND BUILDING FOUNDATIONS IN
ACCORDANCE WITH THE FOLLOWING TABLE:
HEIGHT OF FILL REQUIRED SETBACKS FROM FILL SLOPES
H A B C
0' - 15' 1' - 6" 5' 3'*
15' - 30' 3' S' S'*
OVER 30' 5' S' S'*
H = VERTICAL HEIGHT OF FILL.
A = DISTANCE FROM TOE OF FILL SLOPE TO PROPERTY LINE.
B = DISTANCE FROM NEAREST EDGE OF FOUNDATION TO TOE OR TOP OF FILL SLOPE.
C = DISTANCE FROM TOP OF FILL SLOPE TO PROPERTY LINE. *ADD TWO FEET WHERE BROW DITCH
IS TO BE CONSTRUCTED.
THE CITY ENGINEER MAY REDUCE THE REQUIRED SETBACK (1) WHERE HE DETERMINES THE NECESSITY FOR THE
SETBACK ELIMINATED OR REDUCED BY THE CONSTRUCTION OF RETAINING WALLS OR BECAUSE THE OWNER HF,S TfIE
RIGHT TO EXTEND SLOPES INTO THE ADJACENT PROPERTY; or (2) AFTER RECEIPT OF A REPORT BY A SOIL
ENGINEER CERTIrYING THAT HE HAS INVESTIGATED THE PROPERTY AND THAT IN THE SOIL ENGINEER'S OPINION
THE REDUCTION IN THE SETBACK WILL NOT ENDANGER ANY PUBLIC OR PRIVATE PROPERTY OR INTERFERE WITH
ANY EXISTING DRAINAGE COURSE. IN NO CASE WILL THE SETBACK FROM A BUILDING TO A PROPERTY LINE
BE REDUCED TO LESS THAN THE DISTANCE PRESCRIBED BY APPLICABLE BUILDING AND ZONING REGULATIONS.
2. COMPACTION --- ALL FILLS SHALL BE COMPACTED TO A MINIMUM OF 90 PERCENT OF MAXIMUM DENSITY
AS DETERMINED IN THE LABORATORY BY THE A.S.T.M. D1557-64T TEST OR EQUIVALENT TEST AS APPROVED
BY THE CITY ENGINEER. FIELD DENSITY SHALL BE DETERMINED BY A.S.T.M. D1556-64T OR EQUIVALENT
TEST AS APPROVED BY THE CITY ENGINEER. LOWER DEGREES OF COMPACTION MAY BE PERMITTED BY THE
CITY ENGINEER AFTER RECEIPT OF A REPORT RY A SOIL ENGINEER CERTIFYING THAT HE HAS INVESTIGATED
THE SITE, MADE SOIL TESTS AND THAT IN HIS OPINION SUCH SPECIFIED LOWER DEGREE OF COMPACTION WILL
BE ADEQUATE FOR THE INTENDED USE OF THE PROPERTY, WHICH USE SHALL BE DESCRIBED IN THE REPORT.
3. PREPARATION OF GROUND --- THE NATURAL GROUND SURFACE SHALL BE PREPARED TO RECEIVE FILL BY
REMOVING VEGETATION, NON-COMPLYING FILL, UNSUITABLE SOIL, AND, WHERE NATURAL SLOPES ARE FIVE
HORIZONTAL TO ONE VERTICAL OR STEEPER, BY BENCHING. BENCHES UNDER FILLS SHALL BE OF SUCH WIDTH
AS APPROVED BY THE SOIL ENGINEER. THE TOE OF FILL SHALL BE CONSTRUCTED ON A BENCH AT LEAST
TEN FEET WIDE.
4. MAXIMUM SLOPE --- NO FILL SHALL BE MADE WHICH CREATES AN EXPOSED SURFACE STEEPER THAN 2:l
UNLESS PERMITTED BY THE CITY ENGINEER, AFTER RECEIPT OF A REPORT BY A SOIL ENGINEER CERTIFYING
THAT HE HAS INVESTIGATED THE PROPERTY AND THAT IN THE ENGINEER'S OPINION SUCH STEEPER SLOPE
WILL NOT ENDANGER ANY PUBLIC OR PRIVATE PROPERTY OR RESULT IN THE DEPOSITION OF DEBRIS IN ANY
PUBLIC WAY. THE CITY ENGINEER MAY REQUIRE THAT FILL SLOPES BE CONSTRUCTED FLATTER THAN 2:1
OR MAY REQUIRE SUCH OTHER MEASURES AS HE DEEMS NECESSARY FOR STABILITY AND SAFETY.
Revised Drawn.P..~ ~'. Date2-/4-G9 CITY OF CHULA VISTA
Approved Date2-/•¢- PUBLIC WORKS DEPAR MENT
~...-
~ ~ ~ ~ 601
'~--sr~"~--~- - FILLS 8c FILL SLOPES
Director of Public Works A
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5. MATERIAL --- NO ORGANIC MATERIAL SHALL BE PERMITTED IN FILLS. NO ROCK OR SIMILAR MATERIAL
WITH A MAXIMUM DIMENSION GREATER THAN EIGHT INCHES SHALL BE BURIED OR PLACED IN ANY FILL UNLESS
PERMITTED BY THE CITY ENGINEER, AFTER RECEIPT OF A REPORT BY A SOIL ENGINEER CERTIFYING THAT
HE HAS INVESTIGATED THE PROPERTY AND THE FILL MATERIAL AND THAT A FILL INCLUDING SUCH GREATER
SIZE MATERIAL MAY BE CONSTRUCTED TO MEET THE REQUIREMENTS OF THE INTENDED USE AND THE INTENT OF
THE LAND DEVELOPMENT ORDINANCE. WHEN SUCH GREATER SIZE MATERIAL IS PLACED IN FILLS, IT SHALL
BE DONE UNDER THE DIRECTION AND SUPERVISION OF A SOIL ENGINEER.
Fi. DRAINAGE TERRACES --- ALL FILL SLOPES EXCEEDING FORTY FEET IN VERTICAL HEIGHT SHALL HAVE
DRAINAGE TERRACES AT VERTICAL INTERVALS NOT EXCEEDING THIRTY FEET. WHERE ONLY ONE TERRACE IS
REQUIRED, IT SHALL BE AT APPROXIMATELY MID-HEIGHT, DRAINAGE TERRACES SHALL BE AT LEAST SIX
FEET WIDE, THE TERRACE SHALL BE PAVED IN SUCH MANNER AS TO PROVIDE A PAVED DRAINAGE WAY OF
SUFFICIENT CAPACITY TO CONFINE AND CONDUCT THE PROJECTED FLOW FROM A 10-YEAR EXPECTANCY STORM
ALONG SUCH TERRACE TO AN APPROVED POINT OF DISCHARGE, PAVING SHALL CONSIST OF A MINIMUM
THICKNESS OF THREE INCHES OF PORTLAND CEMENT CONCRETE OR TWO INCHES OF PHEUMATICALLY APPLIED
MORTAR,
7. SLOPES TO RECEIVE FILLS --- FILLS SHALL NOT BE MADE UPON NATURAL SLOPES WHICH ARE STEEPER
THAN 4:1 EXCEPT UPON RECEIPT AND APPROVAL BY THE CITY ENGINEER OF APPROPRIATE RECOMMENDATION
BY A SOIL ENGINEER.
8. EXPANSIVE SOILS --- EXPANSIVE SOILS (I.E, SWELL OVER 3%) SHALL NOT BE PLACED WITHIN THREE
FEET OF THE FINISH GRADE OF A BUILDING SITE UNLESS APPROVED BY THE CITY ENGINEER AFTER }2ECEIPT
OF A REPORT BY A SOIL ENGINEER CERTIFYING THAT HE HAS INVESTIGATED THE PROPERTY AND STATING
RECOMMENDATIONS FOR DESIGN OF FOOTINGS OR FLOOR SLAB OR OTHER PROCEDURE THAT WILL ALLEVIATE
ANY PROBLEM CREATED BY PLACING THE EXPANSIVE SOIL WITHIN SUCH BUILDING SITE.
9. BROW DITCHES --- BROW DITCHES WILL BE REQUIRED AT THE TOP OF FILL SLOPES WHERE SURFACE
DRAINAGE IS TOWARD THE FILL SLOPE AND THERE IS A MINIMUM OF 1000 SQUARE FEET OF AREA TO BE
DRAINED.
10. FILL SLOPES - EXCESSIVE HEIGHT --- WHERE THE TOTAL VERTICAL HEIGHT OF A FILL SLOPE EXCEEDS
SIXTY FEET (60') A SPECIAL DESIGN SHALL BE MADE AND SUBMITTED TO THE CITY ENGINEER FOR APPROVAL.
11. FILL SLOPES - PLANTING --- ALL FILL SLOPES IN EXCESS OF FOUR FEET IN VERTICAL HEIGHT SHALL
BE PLANTED WITH A GROUND COVER OR OTHER PLANTING TO PROTECT THE SLOPES AGAINST EROSION AND
INSTABILITY AS SOON AS PRACTICAL AND PRIOR TO FINAL APPROVAL OF THE LAND DEVELOPMENT. PLANTING
AND PLANT MATERIAL SHALL BE IN ACCORDANCE WITH THE REQUIREMENTS OF THE CHULA VISTA STANDARD
DRAWING FOR "LAND DEVELOPMENT PLANTING - FILL SLOPES", DWG. #605. THE PERMITTEE SHALL MAINTAIN
SUCH PLANTING UNTIL IT IS WELL ESTABLISHED AS DETERMINED BY THE CITY ENGINEER.
12. FENCING REQUIRED --- A FOUR FOOT HIGH CHAIN LINK FENCE MAY BE REQUIRED AT THE TOE OF
FILL SLOPES WHERE TOTAL VERTICAL HEIGHT EXCEEDS THIRTY FEET AND THE FILL CONTAINS STONES
EXCEEDING FOUR INCHES IN DIAMETER. WHERE A FILL SLOPE IS CREATED ADJACENT TO A PUBLIC RIGHT
OF WAY OR OTHER PUBLICLY USED PROPERTY AND TfiE TOP OF SLOPE IS WITHIN TEN (10) FEET OF THE
PROPERTY LINE, A FORTY-EIGHT (48) INCH HIGH CHAIN LINK OR EQUIVALENT FENCE SHALL BE ERECTED
AT THE TOP OF SLOPE.
13. DEVIATION FROM STANDARDS --- DEVIATIONS FROM THE REQUIREMENTS OF THIS STANDARD Df2AWING
MAY BE AUTHORIZED BY THE CITY ENGINEER UPON SUBMISSION OF A WRITTEN REPORT AND CF,RTZFICATZON
BY A SOIL ENGINEER THAT HE HAS INVESTIGATED THE SITE AND THE SOIL THEREON AND THAT THE DEVIATION
RECOMMENDED WILL NOT ENDANGER ANY EXISTING OR PROPOSED PUBLIC OR PRIVATE PROPERTY, OR RESULT
IN THE DEPOSITION OF DEBRIS UPON SUCH PROPERTY, OR INTERFERE WITH ANY EXISTING DRAINAGE COURSE.
Revised Drawn Q / C, DateZ-/9-~9 CITY ~ ~ CHULA V ~ ST
Approved Date1-/~-i6 PUBLIC WORKS DEPAR MENT
~° r
~~%"~-~' %* ~-~~~-~- FILLS & FILL SLOPES 601
Director of Rublic Works B
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SEE OWG. 606. ^L'
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PROFILE-TYPICAL CUT SLOPE
1. CUTS --- SETBACKS - CUT SLOPES SHALL BE SET BACK FROM PROPERTY LINES AND BUILDING
FOUNDATIONS IN ACCORDANCE WITH THE FOLLOWING TABLE:
HEIGHT OF FILL REQUIRED SETBACKS FROM CUT SLOPES
H A B C
0 - 15' 1' - 6" 5~ 3,
15' - 30' 3' S' S,
OVER 30' S' S' S'
H = VERTICAL HEIGHT OF CUT.
A = DISTANCE FROM TOE OF CUT SLOPE TO PROPERTY LINE,
B = DISTANCE FROM EDGE OF FOUNDATION TO TOE OR TOP OF CUT SLOPE.
C = DISTANCE FROM TOP OF CUT SLOPE TO PROPERTY LINE. ADD TWO FEET WHERE BROW DITCH
IS TO BE CONSTRUCTED.
THE CITY ENGINEER MAY REDUCE THE REQUIRED SETBACK (1) WHERE HE DETERMINES THE NECESSITY FOR
THE SETBACK ELIMINATED OR REDUCED BY THE CONSTRUCTION OF RETAINING WALLS OR BECAUSE THE
OWNER HAS THE RIGHT TO EXTEND SLOPES INTO THE ADJACENT PROPERTY; OR (2) AFTER RECEIPT OF A
REPORT BY A SOIL ENGINEER CERTIFYING THAT HE HAS INVESTIGATED THE PROPERTY AND THAT IN THE
SOIL ENGINEER'S OPINION THE REDUCTION IN THE SETBACK WILL NOT ENDANGER ANY PUBLIC OR PRIVATE
PROPERTY OR INTERFERE WITH ANY EXISTING DRAINAGE COURSE. IN NO CASE WILL THE SETBACK FROM
A BUILDING TO A PROPERTY LINE BE REDUCED TO LESS THAN THE DISTANCE PRESCRIBED BY APPLICABLE
BUILDING AND ZONING REGULATIONS,
2. MAXIMUM SLOPE --- CUT SLOPES SHALL NOT BE STEEPER THAN 1-1/2:1 UNLESS THE CITY ENGINEER
APPROVES SUCH STEEPER SLOPE AFTER RECEIPT OF A REPORT BY A SOIL ENGINEER CERTIFYING THAT
HE HAS INVESTIGATED THE PROPERTY, MADE APPROPRIATE SOIL TESTS AND THAT IN HIS OPINION SUCH
STEEPER SLOPE WILL NOT ENDANGER ANY PUBLIC OR PRIVATE PROPERTY OR RESULT IN THE DEPOSITION
OF DEBRIS ON ANY PUBLIC WAY OR INTERFERE WITH ANY EXISTING DRAINAGE COURSE.
THE CITY ENGINEER AT ANY TIME MAY, IN THE ABSENCE OF A SOIL ENGINEER'S REPORT, REQUIRE THAT
A CUT FACE BE AT A FLATTER SLOPE THAN 1-1/2:1 OR REQUIRE SUCH OTHER MEASURES AS HE DEEMS
NECESSARY FOR STABILITY AND SAFETY.
Revised Drawn,P,/. Date2-~.-~9 C I TY O F CHULA V I STA
Approved DateZ-/4 •(, PUBLIC WORKS DEPAR MENT
~rr..~ ~'~~~' { -~- -- CUTS AND CUT SLOPES 602
Director of Public Works A
_ ~-~ G> O
BUILDING FOUNDATION
CLEARANCE- CUT SLOPE
3. DRAINAGE TERRACES --- ALL CUT SLOPES EXCEEDING FORTY FEET (40') IN VERTICAL HEIGHT SHALL
HAVE DRAINAGE TERRACES AT VERTICAL INTERVALS NOT EXCEEDING THIRTY FEET (30') EXCEPT THAT
WHERE ONLY ONE TERRACE IS REQUIRED, IT SHALL BE AT APPROXIMATELY MID-HEIGHT. DRAINAGE
TERRACES SHALL BE AT LEAST SIX FEET (6') WIDE. THE TERRACE SHALL BE PAVED IN SUCH MANNER
AS TO PROVIDE A PAVED DRAINAGE WAY OF SUFFICIENT CAPACITY TO CONFINE AND CONDUCT THE
PROJECTED FLOW FROM A TEN YEAR EXPECTANCY STORM TO AN APPROVED POINT OF DISCHARGE. PAVING
SHALL CONSIST OF A MINIMUM THICKNESS OF THREE INCHES OF PORTLAND CEMENT CONCRETE OR TWO
INCHES OF PNEUMATICALLY APPLIED MORTAR.
4. EXPANSIVE SOIL --- IF DURING THE LAND DEVELOPMENT OPERATION EXPANSIVE SOIL (I. E. SWELL
EXCEEDS 3g6) IS FOUND WITHIN TWO FEET (2') OF THE FINISHED LOT GRADE OF ANY AREA INTENDED OR
DESIGNED AS THE LOCATION FOR A BUILDING, THE PERMITTEE SHALL CAUSE SUCH EXPANSIVE SOIL TO
BE REMOVED FROM SUCH BUILDING AREA TO A MINIMUM DEPTH OF TWO FEET AND REPLACED WITH NONEXPANSIVE
SOIL PROPERLY COMPACTED; PROVIDED THAT THE CITY ENGINEER MAY, UPON RECEIPT OF A REPORT BY
A SOIL ENGINEER CERTIFYING THAT HE HAS INVESTIGATED THE PROPERTY AND MADE SOIL TESTS AND
RECOMMENDING A DESIGN OF FOOTINGS OR FLOOR SLAB OR OTHER PROCEDURE THAT ZN HIS OPINION WILL
ALLEVIATE ANY PROBLEM CREATED BY SUCH EXPANSIVE SOIL, WAIVE THE REQUIREMENT THAT SUCH EXPANSIVE
SOIL BE REMOVED AND REPLACED WITH NONEXPANSIVE SOIL.
5. BROW DITCHES --- BROW DITCHES SHALL BE REQUIRED WHERE SURFACE DRAINAGE IS TOWARD THE
CUT SLOPE AND WHERE THERE IS A MINIMUM OF 1500 SQUARE FEET OF AREA TO BE DRAINED, OR AT
SUCH LOCATIONS AS DETERMINED BY THE CITY ENGINEER. BROW DITCHES SHALL BE LINED AND SHALL
DISCHARGE INTO A PAVED GUTTER, PIPE OR OTHER SAFE DISPOSAL AREA.
6. EXCESSIVE HEIGHT --- CUT SLOPES IN TOTAL VERTICAL HEIGHT IN EXCESS OF SIXTY FEET SHALL
BE THE SUBJECT OF SPECIAL DESIGN BY A SOIL ENGINEER TO BE SUBMITTED TO THE CITY ENGINEER
FOR APPROVAL.
7. CUT SLOPES --- PLANTING - ALL CUT SLOPES IN EXCESS OF FOUR FEET IN VERTICAL HEIGHT SHALL
BE PLANTED WITH A GROUND COVER OR OTHER PLANTING TO PROTECT THE SLOPE AGAINST EROSION AND
INSTABILITY AS SOON AS PRACTICAL AND PRIOR TO FINAL APPROVAL OF THE LAND DEVELOPMENT.
PLANTING AND PLANT MATERIALS SHALL BE IN ACCORDANCE WITH THE REQUIREMENTS OF THE CHULA VISTA
STANDARD DRAWING FOR~~LAND DEVELOPMENT PLANTING - CUT SLOPE S DWG. #606.
8. FENCING REQUIRED --- WHERE A CUT SLOPE IS CREATED ADJACENT TO A PUBLIC RIGHT OF WAY OR
OTHER PUBLICLY-USED PROPERTY, AND THE TOP OF SLOPE IS WITHIN TEN (10) FEET OF THE PROPERTY
LINE, A FORTY-EIGHT (48) INCH HIGH CHAIN-LINK OR EQUIVALENT FENCE SHALL BE ERECTED AT THE TOP
OF SLOPE.
9. DEVIATION FROM STANDARDS --- DEVIATION FROM THE REQUIREMENTS OF THIS STANDARD DRAWING
MAY BE AUTHORI'LED BY THE CITY ENGINEER UPON SUBMISSION OF WRITTEN REPORT AND CERTIFICATION
BY A SOIL ENGINEER THAT HE HAS INVESTIGATED THE SITE AND THE SOIL THEREON AND THAT THE
DEVIATION RECOMMENDED WILL NOT ENDANGER ANY EXISTING OR PROPOSED PUBLIC OR PRIVATE PROPERTY,
OR RESULT IN THE DEPOSITION OF DEBRIS UPON SUCH PROPERTY, OR INTERFERE WITH ANY EXISTING
DRAINAGE COURSE.
Revised DrawniQ.J~, Date?-/t-~9 CITY 0~' CHULA VAST
Approved Date2-/ -6 PUBLIC WORKS DEPAR MENT
/~l2~tt. ,~ ' ~a-~--e__. CUTS AND CUT SLOPES
Director of Public Works B
rh_a
6' M/N.
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F
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-~ ---
3" PORTLAND CEMENT CONCRETE - CLASS B,
OR 2" PNEUMATICALLY APPLIED MORTAR.
1. VARIABLE WIDTH "P" SHALL BE PAVED OR PLANTED AS DIRECTED BY THE CITY ENGINEER.
2. LONGITUDINAL SLOPE OF LINED TERRACE DITCH SHALL BE 2.0%.
3. LINED TERRACE DITCHES SHALL HAVE SUFFICIENT CAPACITY TO CARRY THE PROJECTED RUNOFF BASED UPON
A 10-YEAR EXPECTANCY STORM WITH A MINIMUM TWO-INCH FREEBOARD.
4. ALTERNATE CONFIGURATIONS FOR LINED TERRACE DITCH MAY BE USED UPON APPROVAL BY CITY ENGINEER.
SUBMIT CAPACITY CALCULATIONS FOR EACH SIZE.
S. LINED TERRACE DITCH SHALL CARRY SURFACE WATERS TO THE NEAREST DOWNDRAIN, GUTTER, PIPE, INLET
OR OTHER APPROVED DISPOSAL AREA.
6. THE FOLLOWING IS A TABULATION SHOWING MAXIMUM TOTAL UPSTREAM SURFACE AREA WHICH MAY BE SE1tVED
BY VARIOUS DEPTHS OF LINED TERRACE DITCHES. FIGURES ARE BASED UPON A 10-YEAR EXPECTANCY STORM
AND A MINIMUM TWO-INCH FREEBOARD.
LINING WIDTH LINING DEPTH MAXIMUM TOTAL CONTRIBUTORY AREA
3' 8" 2.5 ACRES
3' 10" 4.2 ACRES
3' 12" 6.2 ACRES
Revised DrawnR.J G. Datej-/~-~
Approved Date2-~Q-
`~ v'7 ,'^
Director of Public Works
CITY OF CHULA VISTAI
DRAINAGE TERRACE 16031
G' PE? O~/6 NO. 60/,/F.
O? ONi6. N0.602%CU7~
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3" PORTLAND CEMENT CONCRETE -CLASS B
OR 2" PNEUMATICALLY APPLIED MORTAR.
1. MINIMUM SLOPE OF BROW DITCH IS 0.5%.
12. DEPTH AND/OR WIDTH SHALL BE INCREASED AS NECESSARY TO CARRY RUNOFF BASED UPON 10-YEAR EXPECTANCY
STORM, WITH A MINIMUM TWO-INCH FREEBOARD.
3. BROW DITCH SHALL CARRY SURFACE WATERS TO THE NEAREST DOWNDRAIN, GUTTER, PIPE OR OTHER APPROVED
DISPOSAL AREA.
4. THE FOLLOWING IS A TABULATION SHOWING .;AXIMUM TOTAL UPSTREAM SURFACE AREA WHICH MAY BE SERVED
AT VARIOUS GRADES BY BROW DITCHES. CALCULATIONS ARE BASED ON A 10-YEAR EXPECTANCY STORM AND
A TWO-INCH FREEBOARD.
GRADE
LINING DEPTH LINING
WIDTH
MAX. TOTAL CONTRIBUTORY AREA
0.5% 8" 2' 0.85 ACRES
1.0% 8" 2' 1.2 ACRES
2.0% 8" 2' 1.7 ACRES
15. ALTERNATE CONFIGURATIONS FOR BROW DITCH MAY BE USED UPON APPROVAL BY CITY ENGINEER. SUBMIT
CAPACITY CALCULATIONS FOR EACH SIZE.
Revised Drawn,p/. C. Date2-~.-~9 CITY O F CHULA V I STA
Approved Date- -~, PUBLIC WORKS DE AR MENT
,~ ~
.~,
~~~`!:~ .~" ` ~ ~ BROW DITCH 604
Director of Public Works ~~~~~~,'~
AREAS TO BE PLANTED
SLOPE TERRACE
NAME PLANT SPACING OR PLANT SPACING 0
FORM QUANTITY NAME FORM QUANTITY
AUSTRALIAN SALT GRASS SEEDS 2 OZ, PER LEMONADE BERRY SHRUBS 16'O.C,
(ATRIPLEX SEMIBACCATA) 1000 SQ.FT. (RHUS INTERGRIFOLIA)
BIRDSFOOT TREFOIL SEEDS 2 OZ. PER OLEANDER SHRUBS 12'O,C.
(LOTUS CORNICULATUS) 1000 SQ.FT. (NERIUM OLEANDER)
PROSTRATE COYOTE BUSH SHRUBS 4' O.C. CAPE GRAPE VINES 16'O,C.
(BACCHARIS PILULARZS) (CISSUS CAPENSIS)
SUGARBUSH SHRUBS 8' O.C. CAPE HONEYSUCKLE VINES 12'O,C.
(RHUS OVATA) (TECOMARIA (TECOMA) CAPENSIS)
SIDNEY WATTLE TREES 32'O,C.
ICE PLANT CUTTINGS 18 "O. C. (ACACIA LONGIFOLIA)
(NESEMBRYANTHEMUM EDULE)
JERUSALEM THORN TREES 24'O,C.
(PARKINSONIA ACULEATA)
1. PLANT CHOICE WITHIN AREA - WHEN TREES ARE PLANTED USE SLOPE PLANTING IN BETWEEN.
2. PREPARE SURFACE BY LOOSENING TOP EIGHTEEN INCHES AND BRINGING TO MOIST CONDITION.
3. PLANT SEEDS BY BROADCASTING AND RAKING. SET OTHER PLANTS IN WELL PREPARED HILLS.
4. WATERING - FALL PLANTING - INITIAL AND KEEP MOIST TO FIRST RAIN - SPRING AND SUMMER PLANTING -
INITIAL AND CONTINUED UNTIL WINTER RAIN.
5. TREES, VINES AND SHRUBS TO HAVE STURDY, HEALTHY ROOT SYSTEMS, AND HEALTHY, VIGOROUS STEMS AND
FOLIAGE WHEN PLANTED.
WHEN LARGE SURFACE AREAS ARE TO BE PLANTED, THE USE OF A VARIETY OF PLANTINGS IS DESIRABLE.
{2evised Drawn,,/. ~. Date? /~-G9 CITY O F C H U LA V I STA
Approved Date2-/4' PUBLIC WORKS DEPAR YIENT
r~ ~ ~
l
~..~
r,_~~r.~ r~~~=a. ~.r PLANTING OF FILL
SLOPES 605
Director of Public Works f~
;~C-,5~'~'
AREAS TO BE PLANTED
SLOPE TERRACE
NAME PLANT SPACING OR NAME PLANT SPACING OR
FORM QUANTITY F~JRM QUANTITY
AUSTRALIAN SALT GRASS SEEDS 6 SEEDS LEMONADE BERRY SHRUBS 16' O.C.
(ATRIPLEX SEMIBACCATA) IN HILL (RHUS ZNTEGRIFOLIA)
4' O.C.
WILD BUCKWHEAT SEEDS 10 SEEDS
(ERZOGONUM FASCICLATIIM) IN HILL
4' O.C.
PROSTRATE COYOTE BUSH SHRUBS 4' O.C. CAPE GRAPE VINES 16' O.C.
(BACCHARIS PILULARIS) (CISSUS CAPENSIS)
ICE PLANT CUTTINGS 18"O,C. SIDNEY WATTLE TREES 32' O.C.
(MESEMBRYANTHEMUM EDULE) (ACACIA LONGIFOLIA)
1. PLANT CHOICE WITHIN AREA - WHEN TREES ARE PLANTED USE SLOPE PLANTING IN BETWEEN.
2. NO PREPARATION OF SURFACE IS REQUIRED.
3. PLACE ALL PLANTS IN HILLS OR PITS PREPARED AS FOLLOWS:
SL(TPES - DRILL OR PUNCH HOLES 4 INCH DIAMETER 18 INCHES DEEP.
TERRACE - DRILL OR PUNCH HOLES 6 INCH DIAMETER 24 INCHES DEEP,
FILL HOLES WITH NATURAL SANDY TOP SOIL.
4. WATERING - FALL PLANTING - INITIAL AND KEEP MOIST TO FIRST RAIN.
SPRING & SUMMER PLANTING - INITIAL AND CONTINUED UNTIL WINTER RAIN.
5. WHEN SLOPE IS 1-1/2 TO 1 OR FLATTER AND SOIL IS LOOSE OR LOOSE TOP MATERIAL IS ADDED, FILL SLOPE
REQUIREMENTS MAY APPLY.
6. TREES, VINES AND SHRUBS TO HAVE STURDY, HEALTHY ROOT SYSTEMS, AND HEALTHY VIGOROUS STEMS AND
FOLIAGE WHEN PLANTED.
7. WHEN LARGE SURFACE AREAS ARE TO BE PLANTED, THE USE OF A VARIETY OF PLANTINGS IS DESIRABLE.
Revised Drawn,Q.J~ Dated-~~.~ CITY OF CHULA VIS
TA
Approved Date - PUBLIC WORKS DE AR MENT
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PLANTING OF CUT SLOPES
606
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VERTICAL SECTION INNER RING DETAIL
EXPANSION TEST MOLD
TESTS FOR EXPANSIVE SOILS
1. DISTURBED SAMPLES
APPARATUS --- THE FOLLOWING APPARATUS USED IN PERFORMING THE TEST FOR EXPANSIVE SOILS
SHALL MEET THE HEREINAFTER PRESCRIBED STANDARDS:
(A) MOLD --- THE MOLD SHALL BE CYLINDRICAL IN SHAPE, MADE OF METAL AND HAVE THE CAPACITY
AND DIMENSIONS PRESCRIBED IN THE FIGURE SHOWN ABOVE. THE MOLD SHALL HAVE A DETACHABLE
COLLAR WITH A MARK 2.00 INCHES ABOVE THE BASE. THE LOWER SECTION OF THE MOLD SHALL BE
DESIGNED TO RETAIN A REMOVABLE RING OF STAINLESS STEEL OR OTHER ACCEPTABLE MATERIAL 1.00
INCHES IN HEIGHT, 4.01 INCHES INTERNAL DIAMETER AND AT LEAST 0.120 INCHES OF WALL THICKNESS.
(B) TAMPER --- THE METAL TAMPER SHALL HAVE A 2 INCH DIAMETER CIRCULAR FACE AND WEIGH 5.5
POUNDS AND SHALL BE SO ARRANGED AS TO CONTROL THE HEIGHT OF DROP AND PERMIT A FREE FALL
OF 12 INCHES ABOVE THE TOP OF THE SOIL IN THE MOLD.
(C) BALANCE --- THE BALANCE OR SCALE USED IN THE TEST SHALL HAVE A CAPACITY OF AT LEAST
1000 GRAMS AND SHALL BE SENSITIVE TO 0.1 GRAMS.
(D) DRYING OVEN --- THE DRYING OVEN SHALL BE THERMOSTATICALLY Cl'JNTROLLED AND BE CAPABLE
OF MAINTAINING A TEMPERATURE OF 230 PLUS OR MINUS 9 DEGREES FAHRENHEIT (110 PLUS OR
MINUS 5 DEGREES CENTIGRADE).
(E) STRAIGHT EDGE --- A STEEL STRAIGHT EDGE 12 INCHES IN LENGTH HAVING ONE BEVELED EDGE.
(F) SIEVES --- A NO. 4 {4.76 mm.) SIEVE CONFORMING TO AMERICAN SOCIETY FOR TESTING
MATERIALS SPECIFICATIONS FOR SIEVES FOR TESTING PURPOSES (ASTM DESIGNATION E-11),
SAMPLE PREPARATION
(A) A SAMPLE OF THE SOIL TO BE TESTED SHALL BE SUFFICIENTLY DRY SO THAT IT ZS FRIABLE
UNDER A TROWEL. IF DRYING OF THE SAMPLE IS REQUIRED THE SAMPLE SHALL BE DRIED IN SUCH
MANNER THAT THE TEMPERATURE THEREOF DOES NOT EXCEED 140 DEGREES FAHRENHEIT (60 DEGREES
CENTIGRADE) AT ANY TIME.
(B) THE DRY SAMPLE SHALL BE BROKEN UP IN SUCH MANNER AS TO AVOID REDUCING THE NATURAL SIZE
OF INDIVIDUAL PARTICLES, PROVIDED, HOWEVER, IF PARTICLES LARGER THAN 1/4 INCH IN DIAMETER
ARE POSSIBLY EXPANSIVE, THEY SHALL BE BROKEN UP SO AS TO PASS THROUGH A NO. 4 SIEVE. AN
ADEQUATE QUANTITY OF THE REPRESENTATIVE BROKEN UP SAMPLE SHALL BE SIEVED THROUGH A NO,
4 SIEVE. A RECORD OF THE PERCENTAGE OF COARSE MATERIAL NOT PASSING THROUGH THE SIEVE
SHALL BE MADE.
(C) A REPRESENTATIVE SAMPLE (HEREINAFTER REFERRED TO AS THE TEST SAMPLE) WEIGHING APPROXIMATELY
Revised DrawnJl,/,~', Date7•/~-69 CITY OF CHUL
A VIST
Approved Date2-/¢( PUBLIC WORKS DEPAR MENT
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EXPANSIVE SOIL TEST 607
Director of Public Works -~~;~;C. A
2 POUNDS OR MORE OF THE SIEVED SAMPLE SHALL BE SELECTED FOR TESTING.
MOLDING SPECIMEN
(A) THE TEST SMAPLE SHALL BE THOROUGHLY MIXED WITH SUFFICIENT DISTILLED WATER TO BRING
THE SOIL TO OPTIMUM MOISTURE CONTENT AS DETERMINED BY AMERICAN SOCIETY FOR TESTING MATERIALS
STANDARD DESIGNATION D-1557-58T, MODIFIED TO USE THREE LAYERS IN LIEU OF FIVE. AFTER
THE TEST SAMPLE IS SO MIXED WITH WATER, THE TEST SAMPLE SHALL BE SEALED IN AN AIR-TIGHT
CONTAINER FOR A PERIOD OF AT LEAST EIGHT HOURS.
(B) AFTER THE TEST SAMPLE HAS BEEN PREPARED AS SPECIFIED IN PARAGRAPH (A) OF THIS SECTION,
ZT SHALL BE FORMED INTO A SPECIMEN BY COMPACTING IN THE 4.01 INCH DIAMETER MOLD IN TWO
EQUAL LAYERS TO GIVE A TOTAL COMPACTED DEPTH OF APPROXIMATELY 2 INCHES. EACH LAYER SHALL
BE COMPACTED BY TWELVE UNIFORMLY DISTRIBUTED BLOWS OF THE TAMPER DROPPING FREE FROM A
HEIGHT OF 12 INCHES ABOVE THE TOP OF THE SOIL WHEN A SLEEVE TYPE BANNER IS USED, OR FROM
A HEIGHT OF 12 INCHES ABOVE THE APPROXIMATE ELEVATION OF EACH FINELY COMPACTED LAYER WHEN
A STATIONARY TYPE MOUNTED TAMPER IS USED. DURING COMPACTION THE MOLD SHALL REST ON A
UNIFORM, RIGID FOUNDATION SUCH AS IS PROVIDED BY A CUBE OF CONCRETE WEIGHING NOT LESS
THAN 200 POUNDS.
(C) FOLLOWING COMPACTION OF THE SPECIMEN, THE UPPER AND LOWER PORTIONS OF THE MOLD SHALL
BE REMOVED FROM THE INNER RING AND THE TOP AND BOTTOM EDGES OF THE COMPACTED SPECIMEN
TRIMMED BY MEANS OF A STRAIGHT EDGE, AND THE COMPACTED SPECIMEN WEIGHED.
MOISTURE TEST
(A) IMMEDIATELY FOLLOWING COMPACTION, A REPRESENTATIVE SAMPLE FOR MOISTURE CONTENT DETERMI-
NATION SHALL BE TAKEN FROM THE METERIAL TRIMMED FROM THE TOP AND BOTTOM OF THE COMPACTED
SPECIMEN. SUCH REPRESENTATIVE SAMPLE SHALL WEIGH NOT LESS THAN 100 GRAMS AND SHALL BE
TAKEN FROM TRIMMINGS MOST REPRESENTATIVE OF THE SPECIMEN TO BE TESTED FOR EXPANSION.
SUCH REPRESENTATIVE SAMPLE SHALL BE WEIGHED IMMEDIATELY, THE WEIGHT RECORDED AND THE
SAMPLE THEREAFTER DRIED IN AN OVEN AT 230 PLUS OR MINUS 9 DEGREES FAT-(RENHEIT (110 PLUS
OR MINUS 5 DEGREES CENTIGRADE) FOR AT LEAST TWELVE HOURS OR TO A CONSTANT WEIGHT, THERE-
AFTER WEIGHED, AND THE WEIGHT RECORDED.
EXPANSION MEASUREMENT
(A) THE COMPACTED SPECIMEN SHALL BE PLACF~ IN A CONSOLIDOMETER OR EQUIVALENT LOADING
DEVICE WITH POROUS STONES AT THE TOP ANL BOTTOM. A TOTAL LOAD OF 12.63 POUNDS, INCLUDING
THE WEIGHT OF THE CONFINING RING, THE UPPER POROUS STONES AND ANY UNBALANCED WEIGHT OF
THE LOADING MACHINE, SHALL BE PLACED ON THE SPECIMEN. THE COMPACTED SPECIMEN SHALL BE
ALLOWED TO CONSOLIDATE UNDER THIS LOAD FOR A PERIOD OF TEN MINUTES, AFTER WHICH TIME AN
INITIAL READING ON THE CONSOLIDOMETER DIAL INDICATOR SHALL BE MADE TO AN ACCURACY OF
0.0005 INCHES.
(B) THEREAFTER DISTILLED WATER SHALL BE ADDED TO THE PAN CONTAINING THE COMPACTED SPECIMEN
UNTIL THE SPECIMEN IS FULLY SUBMERGED IN DISTILLED WATER FOLLOWING WHICH PERIODIC READINGS
OF THE CONSOLIDOMETER DIAL INDICATOR SHALL BE MADE UNTIL THE RATE OF EXPANSION BECOMES
LESS THAN 0.0001 INCH PER HOUR, PROVIDED, HOWEVER, THE COMPACTED SPECIMEN SHALL BE SUBMERGED
FOR NOT LESS THAN THREE HOURS.
(C) UPON COMPLETION OF THE PROCEDURES DESCRIBED ABOVE IN THIS SECTION THE COMPACTED
SPECIMEN SHALL BE REMOVED FROM THE LOADING MACHINE AND WEIGHED TO THE NEAREST 0.1 GRAM.
RESULTS
(A) THE RESULTS OF THE EXPANSION INDEX TEST SHALL BE EXPRESSED AS A PERCENTAGE OF INCREASE
IN THE COMPACTED SPECIMEN AS COMPARED TO ITS INITIAL HEIGHT. THE STATEMENT OF RESULTS
OF THE TEST SHALL INCLUDE A STATEMENT OF THE MOLDING MOISTURE CONTENT AND THE INITIAL
DRY DENSITY OF THE SPECIMEN.
Revised Drawn,Q. J ~'. Date?-/f_ 9 C 1 TY O F C H U LA V I ST
Approved Date2-/Q'-{,9 PUBLIC WORKS DEPARTMENT
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~~ ' A--+--~_. EXPANSIVE SOIL TEST
Director of Public Works
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6071
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2. UNDISTURBED SyMPLES
(A) IF, DURING A LAND DEVELOPMENT OPERATION INVOLVING CUT, THERE IS EVIDENCE OF EXPANSIVE
SOIL IN THE EXCAVATED MATERIAL IN THE VICINITY OF A PROPOSED BUILDING SITE, THEN THE SOIL
ENGINEER SHALL CONDUCT AN INVESTIGATION AS NECESSARY TO ASCERTAIN WHETHER SUCH EXPANSIVE
SOIL IS ALSO PRESENT WITHIN TWO FEET OF FINISH GRADE OF ANY AREA PROPOSED AS THE LOCATION
FOR A BUILDING. THE TEST TO BE USED TO ESTABLISH THE SWELL OF UNDISTURBED SOIL SHALL BE
AS PROPOSED BY THE SOIL ENGINEER AND APPROVED BY THE CITY ENGINEER.
Revised DrawnR„>. C, Datej-/*.G9 CITY 0 F CH~JLA V ~ STA
Approved Date2-Its-G PUBLIC WORKS DEPAR MENT
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~~~'~~ ~- ~~`~ ` ~ ~ E XPANS IVE SOIL TEST 607
Director of Public Works -~' ,Q ~