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GRADING NOTES I. All fill slopes shall be compacted to not less thAn 90 percent of the mAximum density (modified). 2, Sufficent tests of soil properties. including soil types and shear strengths shall be made during grading operations to verify com- pliance with design criteria. The results of such testing shall be reported in the final as-graded report. or upon request of the city. A minimum number of field density tests are made flS follows: A. One test for each two-foot vertical lift. B. One test for each 2000 cubic yards of material placed, C. A sufficient number of finish slope tests to verify compact- ion of the slope surface. 3. No fill shall be placed until stripping and removal of unsuitable soils is accepted by the project engineer or engineering geologist. The undersigned project engineer hereby states that these plans were prepared by him or under his supervision. Approved protective mellsures And temporary drainage provisions shall be provided to protect adjoining properties from deposition of material or diverted flows both during and after all phases of contruction, 4. 5. 6. All offsite improvements shall be completed to the satisfaction of the project engineer. 7, All cuts shall be observed by the project engineer during grading so that any adverse conditions can be recognized and corrected. 8. Any modifications of. or changes in. approved grading plans must be approved by the city, 9, All graded sites must have drainage swales. berms. and other drainage devices approved at the rough grading stag". 10, Grading operations must b.. conducted under the observation of the Pl'oject engineer and/or the soils engineer. II. Excavations for stability keys and removal of unsuitable soils must be observed and accepted in writing by the soils engineer or engineering geologist prior to placing fill. 12. The geotechnical engineering study prepared by Lambert and Assoc- ciates and dated December 2. 1994. shall become a part of this grading plan and all recommendations contained therein shall be strictly adhered to. 13. Contractor shall notify the project engineer's office at (970) 7G8- 6153 forty-eight (48) hours in advance of intention to begin grad- ing. 14. The foundation area of the embankment should be cleared of all vegetable. organic or deleterious material prior to placement of the embankment fill. The clearing operations should extend beyond the proposed embankment a distance sufficient to insure that the em- bankment fill is not placed on any deleterious meterials or at least five (5) feet. whichever is greater. 15. The soil material exposed in the clearing operations should be moisture conditioned. mixed and proof-rolled prior to the placement of the embankment fill. Any loose. low density or pumping areas exposed during the proof-rolling opera! ions should be removed and replaced with compacted embankment fill. 16. The soil moisture content for compacting the embankment material should r8nge from about 2 percent dry of optimum to about two (2) percent wet of optimum moisture content as defined by ASTM 0698. Standard Proctor. The proposed embankment material should contain no rocks larger than about (6) inches. The material should be placed in the thin lifts of about (6) to eight (8) inches maximum thickness. moisture conditioned to the proper moisture content and compacted to at least 95 percent of the maximum dry density as defined by ASTM 0698. Standard Proctor. 17. If it is desired to begin construction on the embankment during late fall, winter or early spring, it should be noted that freezing of the last lift of the previous day's work is likely. If this is the case, it will be necessary to protect that area of the on-going work from freezing or removing the frozen material prior to the onset of the next day's work. It may be helpful to stockpile dry mat- erial and place a loose lift of this dry material to protect the placed and compacted fill material from frost. The loose protective material may be removed the next morning and returned to the stockpile for future use. If the protective material should he moistened. by either rain or snow. it should be stored separately from the dry Rtockpile material. date 3-10-1995 job number 94074/0RTITL designed by drawn by KLD checked by revision ~ ~- \ \/ \ 3890 SHEET INDEX SHEET 1 COVER SHEET SHEET 2 PROPOSED RIVER REDEVEL8PMENT DRAWING SHEET 3 PROPOSED RIVER REDEVELOPMENT DRAWING SHEET 4 P,ROPOSED RIVER REDEVEL::>PMENT DRAWING SHEET 5 PROPOSED RIVER REDEVEL::>PMENT DRAWING SHEET 6 PROPOSED RIVER PROFILE SHEET 7 EXISTING, PRE-PROJECT DRAWING SHEET 8 EXISTING, PRE-PROJECT DRAWING SHEET 9 EXISTING, PRE-PROJECT DRAWING SHEET 10 EXISTING, PRE-PROJECT DRAWING SHEET 1 1 EXISTING, PRE-PROJECT PROFILE SHEET 12 TYPICAL SECTIONS AND DET A~LS SHEET 13 TYPICAL SECTIONS AND DET A LS SHEET 2 & 7 . J "-'f..J'J " /. I . / --~ '-' ~OKIM"U; SCALi 20011 o ~ I .T rooo 40no , fIoOOO' foE -Hi i':'~-:,:: ~ VICINITY MAP date NORTH RIVER LEGEND: 100 Year Flood Plain Proposed Centerline of River ENGINEER'S SIGNA'I1JRE I. Bradley D. McMillon, being a Registered ProCessional Engineer in the State oC Colorado, do hereby certify that these drawings were prepared under my direct supervision. Bradley 0, McMillon P,E, 28893 KEY MAP SCALE 1" 500' SHEET NUMBER OURAY 1 UNCOMPAHGRE FOLEY ASSOCIATES ENGINEERING & SURVEYING, INC TELLURIDE COLORADO, 81435 (303) 728-6153 REDEVLOPMENT PROJECT "'" ,../..