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<br />.
<br />
<br />.-<\-
<br />
<br />GRADING NOTES
<br />
<br />1. All fill slopes shall be compacted to not less than 90 percent
<br />of the maximum density.
<br />
<br />2. Sufficent lests of soil properties. including soil types and shear
<br />slrenglhs shall be made during grading operations to verify com-
<br />pliance wilh design crileria. The resulls of such testing shall be
<br />reporled in: the final as-graded report. or upon requesl of the
<br />city. A minimum number of field density lests are made as
<br />follows:
<br />
<br />A. One tesl for each t.wo-foot vertical lift.
<br />13. One test for each 2000 cubic yards of material placed.
<br />C. A sufficienl number of finish slope tests t.o verify compact-
<br />ion of t.he slope surface.
<br />
<br />3. No fill shall be placed until slrippinl( and removal of unsuitable
<br />soils is acc"pted by thc project. engineer or engirleerinl( geologist.
<br />
<br />4. The ulldersign"d civil engineer hereby slates lhat these plans were
<br />prepared by him or under his supervision.
<br />
<br />5. Approved protective measures and temporary drainage provisions
<br />shall be provided to protecl adjoining propcrlies from deposition
<br />of material or diverted flows both during and aft.er all phases of
<br />contructioll.
<br />
<br />6. All offsile improvements shall be completed to the satisfaction
<br />of lhe project engineer.
<br />
<br />7. All culs shall be observed by lhe soils engineer during grading so
<br />that any adverse conditions can be recognized and correctcd.
<br />
<br />8. Any modifications of. or changes in. approved grading plans must
<br />be approved by the city.
<br />
<br />9. All graded sites must have drainage swales, berms, and olher
<br />drainage devices approved al the rough grading stage.
<br />
<br />10. No rock or similar material grealer than 12" in diameler will be
<br />placed in the fill unless recommendations for such placement
<br />have been submitted by the projecl engineer and approved in
<br />advance by lhe city.
<br />
<br />11. Grading operations musl be conducted under the observation of
<br />lhe project engineer and/or lhe soils engineer.
<br />
<br />12. Excavations for stabilily keys and removal of unsuilable soils
<br />must be observed and accepted in writing by the soils engineer
<br />or engineering geologisl prior to placing fill.
<br />
<br />13. The geolechnical engineering sludy prepared by Lambert and Assoc-
<br />ciates and daled December 2, 1994, shall become a part of this
<br />grading plan and all recommendations conlained therein shall be
<br />slriclly adhered to.
<br />
<br />14 Contractor shall notify the project engineer's office at (303) 728-
<br />6153 forty-eight (48) hours in advance of inlention to begin grad-
<br />ing.
<br />
<br />15. The foundation area of lhe embankment should be cleared of all
<br />vegelable, organic or delelerious material prior to placement of the
<br />embankment fill. The clearing operations should extend beyond the
<br />proposed embankment a distance sufficient to insure thal lhe em-
<br />bankmenl fill is not placed on any deleterious melerials or at leasl
<br />five (5) feet. whichever is grealer.
<br />
<br />16. An exploralory trench should be excavatcd under all levees to expose
<br />subsurface conditions which are not suilable for support of the levee
<br />such as buried man-made debris. Man-placed debris or unsuitable
<br />conditions encountered In the exploralory trench should be removed
<br />and replaced with suitable embankment fill malerial. The trench
<br />should have a base width sufficient to allow backfill compaction with
<br />conventional compaction equipment. Trenches should have a minimum
<br />depth of six (6) feet except for embankmenl heighls less than six
<br />(6) feet. in which case the minimum depth should equal the embank-
<br />ment height. Trench side slopes should normally nol be sleeper lhan
<br />1.0 lo 1.0 (horizontal lo verlical) wilh flatter slopes if needed for sla-
<br />bilily. 13ackfill should be placed only after careful observation of the
<br />excavaled lrench to verify lhat undesirable materials are nol present.
<br />
<br />17. The soil material exposed in lhe clearing operations should be moisture
<br />conditioned, mixed and proof -rolled prior to lhe placement of lhe
<br />embankm'~nt fill. Any loose, low density or pumping areas expos cd
<br />during lhe proof-rolling operations should be removed and replaced
<br />with compaeled embankment fill.
<br />
<br />18. The soil moisture content for compacting lhe embankment rnalerial
<br />should range from aboul 2 percent dry of optimum to aboul lwo (2)
<br />percenl wet of optimum moislure contenl as defined by ASTM D698,
<br />Standard Proctor. The proposed embankmenl malerial should contain
<br />no rocks larger than about (6) inches. The material should be placed
<br />in the lhin lifls of about (6) to eight (8) inches maximum lhickness,
<br />moislure conditioned to the proper moisture conlenl and compacted
<br />lo al leasl 95 percent of the maximum dry density as defined by ASTM
<br />D698, Slandard Proctor.
<br />
<br />...
<br />
<br />date 3-10-1995
<br />job number 94074/0RTlTl
<br />designed by
<br />drawn by KLD
<br />checked by
<br />
<br />o descri tion of revision
<br />
<br />date
<br />
<br />19. If il is desired to begin construclion on the embankmenl during
<br />lale fall. winter or early spring, il should be noted lhal freezing
<br />of the last lift of lhe previous day's work is likely. If lhis is lhe
<br />case. il will be necessary to protect thal area of the on-going
<br />work from freezing or removing the frozen malerial prior to lhe
<br />onset of the nexl day's work. Il may be helpful lo stockpile dry mal-
<br />erial and place a loose lift of this dry male rial lo prolecl lhe placed
<br />and compacted fill material from frost. The loose prolectivc malerial
<br />may be removed the next morning and relurned to lhe slockpile
<br />for fulure use. If the protective malerial should be moistened. by
<br />either rain or snow, it should be stored separalely from lhe dry
<br />slockpile malerial.
<br />
<br />20. The exist ing levee should be reconstructed lo provide post conslruct-
<br />ion perforrnance cornpatible with the new levee erllbankrnenl. The
<br />reconditioning should consist of rcmoval of construction debris and
<br />recompaction of lhe fill lo a uniform compaction of al least 95 per-
<br />cent of the maximum dry density as defined by AST\[ DG98. standard
<br />moisture-densi t.v rela tionship.
<br />
<br />21. Testing of lhe embankmenl fill will be required to determine the
<br />grain size distribution. permeability and moislure-density relation-
<br />ship of the fill malerial to verify ils suitabilily for lIse as cmbank-
<br />menl fill and as construcled in-place moislure cont.enl and dry
<br />densily to delermine the relative compataction of Ihc embankment
<br />fill.
<br />
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<br />
<br />APPROXIMATE SCALE
<br />
<br />2000 0
<br />t:-:'.T: J:.~-.:J _r~:.T
<br />
<br />,nun
<br />..L~,._
<br />
<br />f!,f)OO FfET
<br />.:.;:J
<br />
<br />.000
<br />.i
<br />
<br />VICIHITY r.'^p
<br />
<br />
<br />NORTH
<br />
<br />OURAY
<br />
<br />
<br />SHEET 2 & 8
<br />.,/,/
<br /> ,I, SHEET INDEX
<br /> '" I,
<br /> I'
<br /> ,\
<br /> "\ SHEET 1
<br /> \\
<br /> SHEET 2
<br /> SHEET 3
<br /> SHEET 4
<br /> \I SHEET 5
<br /> " SHEET 6
<br /> 1\
<br /> 3 \& 9 SHEET 7
<br /> SHEET 8
<br /> t SHEET 9
<br /> SHEET 10
<br /> SHEET 1 1
<br /> \l SHEET 12
<br /> ,
<br /> SHEET 13
<br /> SHEET 1 4
<br />
<br />
<br />KEY
<br />
<br />MAP
<br />
<br />SCALE I" = 500'
<br />
<br />UNCOMPAHGRE
<br />
<br />RIVER
<br />
<br />REDEVLOPMENT
<br />
<br />PROJECT
<br />
<br />.,
<br />
<br />"
<br />
<br />COVER SHEET
<br />PROPOSED RIVER
<br />PROPOSED RIVER
<br />PROPOSED RIVER
<br />PROPOSED RIVER REDEVELOPMENT
<br />TEMPORARY SEDIMENT BASIN
<br />PROPOSED RIVER PROFILE
<br />EXISTING; PRE-PROJECT DRAWING
<br />EXISTING, PRE-PROJECT DRAWING
<br />EXISTING, PRE-PROJECT DRAWING
<br />EXISTING, PRE-PROJECT DRAWING
<br />EXISTING, PRE-PROJECT PROFILE
<br />TYPICAL SECTIONS AND DETAILS
<br />TYPICAL SECTIONS AND DETAILS
<br />
<br />REDEVELOPMENT
<br />REDEVELOPMENT
<br />REDEVELOPMENT
<br />
<br />LEGEND:
<br />
<br />t .
<br />
<br />.=:J
<br />
<br />Proposed
<br />
<br />Levee Core
<br />
<br />"~:.
<br />
<br />~-'
<br />
<br />~'
<br />
<br />100 Year Flood Plain
<br />
<br />Proposed Centerline of River
<br />
<br />ENGINEER'S SIGNATURE
<br />
<br />I, Bradley D. McMillon, being a Registered Professional Engineer
<br />in the State of Colorado, do hereby certify that these drawings
<br />were prepared under my direct supervision.
<br />
<br /><--~~ ~ hC~
<br />
<br />Bradley D. McMillon P.E. 28893
<br />
<br />, .~' \ ~ ' ! !
<br />
<br />"t
<br />,.\"
<br />
<br />"/"
<br />. '~',
<br />
<br />"\ ~ ~ ,'"
<br />.
<br />
<br />, .
<br />/:<,':' ;~~ '"
<br />
<br />., ~ _.1
<br />:2 b C~; ~
<br />
<br />-,
<br />i\,,>.:, .
<br />/~"'~''':::' .
<br />
<br />, -
<br />. _.
<br />~ : ~
<br />...,- .-..
<br />-'. .. ..
<br />"",\",:~,;:~<~,:: ~,
<br />
<br />FOLEY ASSOCIATES
<br />ENGINEERING &: SURVEYING, INC.
<br />TELLURIDE COLORADO, 81435
<br />(303) 728-6153
<br />
<br />6714
<br />
<br />DRAWING
<br />DRAWING
<br />DRAWING
<br />DRAWING
<br />
<br />,
<br />
<br />SHEET NUMBER
<br />
<br />1
<br />
|