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ST8805-LR 890512 BAKER. SHIFLETT, /nc. ~Engineers ~ Geotechnical, GeoEnvironmental, Engineering Geology, Construction Materials Coppell Independent School District 1201 Wrangler Drive Coppell, Texas 75019 Attn: Ms. Vonita White Superintendent MaY 12, 1989 Project No. 892488 © "rl¥ 'HAY 16 1989 Re: Parkway Boulevard and High School Access Road Coppell, Texas Gentlemen: As requested, samples of the subgrade soils were obtained from Parkway Boulevard and the High School Access Road on April 28, 1989. A pH and Atterberg Lime Series was performed to determine the quantity of lime required to reduce the plasticity index of the soil. Four soil samples were obtained from the locations indicated on the attached test results. The samples were selected to represent the exposed soil types within the subgrade. The two (2) samples exhibiting the greatest plasticity were subjected to a pH and Atterberg Lime Series. The tests indicate that approximately five (5) percent hydrated lime as determined by the dry unit weight of the soil will be required to reduce the plasticity index. This will result in an addition of approximately 23 pounds of lime per square yard mixed to a depth of six (6) inches. The "Summary of Results" is attached. The placement of the lime, and mixing and compaction of the soil-lime mixture should be performed in accordance the the Texas Highways and Public Transportation Standard Specifications (1982), Item 260, with the exception of Item 260.4(3). Item 260.4(3) discusses gradation requirements of the mixed and blended soil-lime mixture. This item indicates that a minimum of 85% pass a 3/4-inch sieve, however, it is preferred to use the 1972 requirement of 60% passing a No. 4 sieve. 5450 Easl Loop 820 South P.O. Box 15822 Fort Worth, Texas 76119 (8! 7) 478-8254 Metro 572-3411 Telecopier (817) 478-8874 Coppell Independent School District May 12, 1989 Page 2 It is hoped this will be of some assistance. further assistance, please call. If we can be of Sincerely, BAKER-SHIFLETT, INC. Roy R. Grant, CET Nicet 071293 D. Baker, P.E. Texas 40060 RRG/TDB:dr cc: Jerry Parche' Consulting Engineers Attn: Mr. Jerry Parche', P.E. City of Coppell c/o Ginn, Inc. Attn: Mr. J.R. Richardson Attachments-. pH/Atterberg Lime Series BAKER-SHIFLEI'r, ~ OF RESUI~ l:~kL'~.:~J~u~:~S T.T'lq~ .?~'T'F~ Parkway Boulevard and High School Access Road Coppell, Tew~ Report No. 892488 Parkway Blvd. Sta. 61+00 Combination * High School Acess Rd. 4% 6% 29 13 16 7.60 9 12.72 9 12.78 8 12.78 29 12 17 ...... Sta. 18+50 48 19 29 7.48 25 12.72 20 /2.80 20 12.83 Combination* 30 13 17 ...... 8% PI 8 19 ~: * Samples were combined fromm various locations within the indicat_~d_ road. 12.75 12.84 ~ ~onstruction Materials Eng~neeringDivision L.. ~-~ E n g i n e e r s ~ 12, 1989 Coppell Independent School District PROJECT: Parkway Boulevard & 1201 Wrangler Drive High School Access Road Coppel I, Texas 75019 LDCAT,ON: Coppel I, Texas Attn: Ns. Vonita White .EPORTNO: 892488-8 Super I ntendent RESULTS OF FIELD DENSITY TESTS RETEST PERCENT TEST DATE OF TEST LOCATION PROCTOR FIELD FIELD OF TEST MOISTURE DENSITY PROCTOR NO. TEST L IFT NO. ~ ,.CF DENSITy NUMBER ~/ATER LINE 'A" CROSSING PARKWA'f BLVD: 227 5-08 - Sta 59+23; lOtS of Ct. 1 i=W-I&2 15,9 114.7 98 228 ' - Sta 59+25; 5tS of CL 2 F~-I&2 16.6 114.6 98 SANITARY SEWER STUB-OUT: 229 ' - Sta 0+65 P~/-I&2 17 99.8 STORI~I DRAIN LINE "C": 230 . - Sta 50+00 1 1~/-1&2 17.4~ 107,3 2 231 . - Sta 25+00 PW-I&2 17.6TM 106.3 Tests performed by T. Thompson REMARKS: Location references are station fo fhose provided on plans. numbers TEST METHODS: ASTM D 2B22. O 3017, D lS6S, D 21S7 OR D 2S37 referenced .~ ~,/,~ i~ BAKER-SHIFLETT, INC. DISTRIBUTION: ~ 1 Above 1 Jerry Parche~ Consulting Englneers ~ A**n: Mr. Jerry Parche~, P.E. : Glenn C, Goss~ P.E, 1 Glnn~ Inc, Texas 49386 A*~n: Mr. J, R, Richardson 5450 Easl Loop 820 Soulh PAGE ,, P.O. Box 15822 Fo~ Wo~h, Texas 76119 (817)478-8254 Melro 572-3411 1 Parkway Boulevard & High School Access Rd, REPORTNO: 892488-8 RESULTS OF FIELD DENSITY TESTS RETEST PERCENT TEST DATE OF TEST LOCATION PROCTOR FIELD FIELD OF NO. TEST L I FT TEST MOISTURE DENSITY PROCTOR NUMBER NO. % PCF DENSITY WATER L I NE "A" CROSS I NG PARKWt Y BLVD: 252 5-09 - Sta 59+25; 10'S of CL 3 PW-3&2 19.0 , 110.2 96 STORM SEWER LINE ,,C,,: J-I'~' ~. 233 . _ Sta 10+00 3 PW-I&2 15.3/ 110.2 WATER LINE "A" CONNECTION TO EXISTING 16" WATERLINE 234 " - Sta 0+00; N of CL 3 PW-I&2 15.0 / 107.5 REMARKS: ,A~E 2 OF 2 BAKER-SHIFLETT, INC. ~UMMARY OF MO I STURE-DENS I TY REL AT I ONSH I PS Parkway Boulevard Coppell, Texas ProJect No. 892488 2-24-89 2-24-89 PROCTOR MATERIAL DESCRIPTION NO. Reddish brown clayey sand PW-1 116.5 Reddish brown/dk brown FW-2 118.4 clayey sand 2-24-89 Yellowish brown clay PW-3 90.5 27.5 2-24-89 Brown clay PW-4 91.1 27.0 3-14-89 Lt gray clay w/sand PW-5 90.6 28.3 4-17-89 Lt brown silty, clayey PW-6 124.3 10.8 sand w/gravel MAX I MUM OPT I MUM DRY DENS I TY MO I STURE CONTENT pCF ~ 13.3 12.7 REMARKS: Unless otherwise noted, all Proctors have been performed using ASTM D 698. SPECIFICATIONS: Speclfled Dry Oenslt¥ "~95% and above Specl f led Mol sture Conten~ -~ 0 to +4% 27 26 6O 65 5O 19 11 13 30 25 26 12 PI 16 13 30 40 24 7 ~ Construction Materials Engineering Division I n g i n e r s 1989 Coppell Independent School District 1201 Wrangler Drive Coppell, Texas 75019 Attn: Ms. Vonlta White Superintendent PROJECT: LOCATION: Parkway Boulevard & High School Access Road Coppell, Texas REPORT NO: 892488--8 RESULTS OF FIELD DENSITY TESTS RETEST PERCENT TEST DATE OF TEST LOCATION PROCTOR FIELD FIELD OF TE~T MOISTURE DENSITY PROCTOR NO. TEST L I FT NO. ~ ~CF DENSITY NUMBER WATER LINE "A' CROSSING PARKWA BLVD: 227 5-08 - Sta 59+23; 10'S of Ct. 1 PW-I&2 15.9 114.7 98 228 " - Sta 59+25; 5'S of CL 2 PW-I&2 16.6 114.6 98 SANITARY SEWER STUB-OUT: 229 " - Sta 0+65 1~/-1&2 17.5 99.8 91 STORM DRAIN LINE "C': 230 " - Sta 50+00 1 1~-1&2 17.4 107.3 91 231 " - Sta 25+00 2 1~-1&2 17.6 106,3 90 Tests performed by T. Thompson TEST METHODS: ASTM D 2922° D 3017, D 16SE. D 21S7 OR D 2937 REMARKS: Location references are station numbers referenced to those provlded on plans. BAKER-SHIFLETT, INC. DISTRIBUTION: 1 Above 1 Jerry Parchet Consulting Engineers Attn: Mr. Jerry Parchet, P.E. 1 Glnn, Inc. Attn: Mr. J. R. Richardson Glenn C. ~oss, P.E. Texas 49386 PAGE . 5450 East Loop 820 South P.O. Box 15822 Fort Worth, Texas 76119 (817)478-8254 Metro 572-3411 1 PROJECT: Parkway Boulevard & High School Access Rd, REPORTNO= 892488--8 RESULTS OF FIELD DENSITY TESTS RETEST PERCENT TEST DATE OF TEST LOCATION PROCTOR FIELD FIELD OF NO. TEST TEST MOISTURE DENSITY PROCTOR NUMBER L I FT NO. ~ ~CF DENSITY WATER LINE "A" CROSSING PARI~t Y BLVD: 232 .5-09 - Sfa 59+23; 10'S of CL 3 PW-3&2 19.0 110.2 96 STORN SEWER LINE "C": 233 " - Sfa 10+00 3 1~-1&2 15.3 110.2 94 WATER LINE "A" CONNECTION TO EXISTING 16' WATERLINE 234 " - Sfa 0+00; N of CL 3 1~-1&2 15.0 107.5 92 REMARKS: PAGE 2 OF. 2 BAKER-SHIFLETT, INC. 2-24-89 2-24-89 2-24-89 2-24-89 3-14-89 4-17-89 SUMMARY OF MO I STURE-DENS I TY RELAT I ONSH I PS Parkway Boulevard Coppel I, Texas Project No. 892488 MATER I AL DESCR I PT I ON Reddlsh brown clayey sand PW-1 Reddish brown/dk brown PW-2 clayey sand Yellowlsh brown clay PW-3 Brown cl ay PW-4 Lt gray clay w/sand PW-5 Lt brown silty, clayey PW-6 sand w/gravel MAXIMUM PROCTOR DRY DENSITY NO. pCF OPT I MUM MOISTURE CONTENT 116.5 13.3 27 118.4 12.7 26 90.5 27.5 6O 91.1 27.0 65 90.6 28.3 50 124.3 10.8 19 REMARKS: Unless otherwise noted, all Proctors have been performed using ASTM D 698. SPECIFICATIONS: Specified Dry Density Specified Moisture Content 95% and above 0 to +4% 11 13 30 25 26 12 PI 16 13 30 4O 24 7 BAKER. SHIFLETT, /nc. ~ Engineers Geotechnical, GeoEnvironrnental, Engineering Geology, Construction Materials Coppell Independent School District 1201 Wrangler Drive Coppell, Texas 75019 Attn: Ms. Vonita White Superintendent May 12, 1989 Project No. 892488 Re: Parkway Boulevard and High School Access Road Coppell, Texas Gentlemen: As requested, samples of the subgrade soils were obtained from Parkway Boulevard and the High School Access Road on April 28, 1989. A pH and Atterberg Lime Series was performed to determine the quantity of lime required to reduce the plasticity index of the soil. Four soil samples were obtained from the locations indicated on the attached test results. The samples were selected to represent the exposed soil types within the subgrade. The two (2) samples exhibiting the greatest plasticity were subjected to a pH and Atterberg Lime Series. The tests indicate that approximately five (5) percent hydrated lime as determined by the dry unit weight of the soil will be required to reduce the plasticity index. This will result in an addition of approximately 23 pounds of lime per square yard mixed to a depth of six (6) inches. The "Summary of Results" is attached. The placement of the lime, and mixing and compaction of the soil-lime mixture should be performed in accordance the the Texas Highways and Public Transportation Standard Specifications (1982), Item 260, with the exception of Item 260.4(3). Item 260.4(3) discusses gradation requirements of the mixed and blended soil-lime mixture. This item indicates that a minimum of 85% pass a 3/4-inch sieve, however, it is preferred to use the 1972 requirement of 60% passing a No. 4 sieve. 5450 East Loop 820 South P,O. Box 15822 Fort Worth, Texas 76119 (817) 478-8254 Metro 572-3411 Telecopier (817) 478-8874 Coppell Independent School District May 12, 1989 Page 2 It is hoped this will be of some assistance. further assistance, please call. If we can be of Sincerely, BAKER-SHIFLETT, INC. Roy R. Grant, CET Nicet 071293 Baker, P.E. Texas 40060 RRG/TDB:dr cc: Jerry Parche' Consulting Engineers Attn: Mr. Jerry Parche', P.E. City of Coppell c/o Ginn, Inc. Attn: Mr. J.R. Richardson Attachments: pH/Atterberg Lime Series BAKER-SHIFLETT, Inc. Parkway Blvd. Sra. 61+00 Ommb~tion * High School Sta. 18+50 Combination * Parkway Boulevard and High School Access Road Coppell, Tewm~ Report No. 892488 29 13 16 29 12 17 PIASTIClTY INDICES/~H 4% 6% 7.60 9 12.72 9 12.78 8 12.78 8 12.75 48 19 29 7.48 25 12.72 20 12.80 20 12.83 30 13 17 ...... * Samples were cc~bined fz-~ various locations within the imiicated road. 19 12.84