The URL can be used to link to this page

Home My WebLink AboutA2 l i144I { �z I II oZ x CA rq Nm I � � N .+ Z i b � I •, .SG ''•dp� r� .p .. �- m2 1 I a .6 99 1 _3L 4 - - `� — _ — -- _ _ App —x. Line of Flood Zona L'mits __])B 1 ow w CA b C � a FT' S0 m 0 m ,g_1 I � m m g_2 B-4Ln 1 LAND SPACE I RECEIVED FEB 2 7 2017 LEGEND BASE DRAWING By OTHERS -APPROXIMATE BORING LOCATION CITY OF AMES,IOWA NORTH PmjadNo. Date: OEPI OF PLANNING&HOUSING 1125�64 DrM 9 1 BORING LOCATION DIAGRAM EXHIBIT AMS KEK Irerracon IA10 HETFIELD MONOPOLE TOWER o eme: Consulting Engineers and Scientists VERIZON WIRELESS-NET GREAT PLAINS 0 1a A812.09.01.dw 600 SOUTH MAPLE STREET A'2 o eme: 1523 S BELL AM AVE SURE 104 ES,IOWA 50010 APPROXIMATE DRAWING SCALE I A-2 I PH.(515)232a50 FAX(515)232-0553 AMES IOWA BORING LOG NO. 1 Page 1 of 1 PROJECT: IA10 Hetfeld Monopole Tower CLIENT: Verizon Wireless-Net Great Plains Bloomington,Minnesota SITE: 600 South Maple Street Ames, Iowa o LOCATIQN See Exhibit A-1 W Z wa c F o W Q U Latitude:42.0169° Longitude: -93.6236° v Q ~ F w LL U F w n w rn= t- z" _ �> a > o� Boaz aF r(D w Approximate Surface Bev:96(Ft)+/_ p ¢co U a E Z M p p w DEPTH ELEVATION Ft. ro o CO o: U U Sticks a�nees 2.0 Ground about 3.5 feet 94 +/' 12 9-9-10 1 12 SANDYLAY CL dark brown N9-1 5.o SAND SP,trace clay,fine grained,brown,loose 91+/ 12 7-5-4 2 12 SAND fSP),trace gravel,fine grained,brown,loose 5— N=9 16 1-1-2 3 4 N=3 10— 12 1-2-2 4 7 N=4 becoming medium to coarse grained below 14 feet 1 12 4-4-4 5 8 N=8 n 18.0 78+/- �, . SAND IS!!),trace gravel,coarse to medium grained,gray, o medium dense 2 12 3-7-8 6 11 o (cave in at 18 feet after boring) E45 N O ' N z _ O U 2 7 16 w 'a (7 - f- 29.0 67+/ N SANDY LEAN CLAY{CQ trace gravel,gray,stiff 3 8 15 w , 3 34.0 62+/- LEAN CLAY(CLy gray,stiff $ 12 9 2110 14 111 00 36.0 60+/- SAND{SP),trace gravel,coarse to medium grained,gray, loose to medium dense LU 4 16 N26 10 10 0 w 145.5 becoming fine grained below 44 feet 12 7-9-g 11 24 z 50.5+/ 4 N=18 Boring Terminated at 45.5 Feet 0 0 a 0 rr LL 0 W Stratification lines are approximate.In-situ,the transition may be gradual. Hammer Type: Automatic a w cn Advancement Method: See Exhibit A-2 f Notes: 16 •0-19'Hollow Stem Auger,19'-Termination Wash Boring ro duures or if of field o p Q See Appendix B for description of laboratory > procedures and additional data(if any). 0 Abandonment Method: See Appendix C for explanation of symbols and Z Boring bacldilled with soil cuttings upon completion. abbreviations. Lo C9 O -' WATER LEVEL OBSERVATIONS O Boring Started:3/5/2014 Boring Completed:3/5/2014 o 99'While Sampling Irerracon. g: None Encountered After Drilling Drill Rig:897 Driller.JG CO 1523 S.Bell Ave.,Suite 104 F Ames,Iowa Project No.:AB125649 Exhibit A-3 BORING LOG NO. 2 Page 1 of 1 PROJECT: IA10 Hetfield Monopole Tower CLIENT: Verizon Wireless-Net Great Plains Bloomington,Minnesota SITE: 600 South Maple Street Ames, Iowa 0 LOCATION See Exhibit A-1,Offset w Z a ❑W q 1Z South of Staked " >O } m o W?55 8 F chi U Latitude:42.01b9cetiL8ngitude: -93.6235° = w Q W W LL W� w Z F a F o:> a > O� �n.z ¢F }� Approximate Surface Elev:96(FL)+1- o a Q w LL m co O W- 0 O H w U� DEPTH ELEVATION Ft. 0 Sticks and Leaves Ground frozen to about 3.5 feet ANDY LEAN CLAY L dark brown 10 N=14 1 15 1 al�N" 14 SAND(SP),trace clay,fine grained,brown,loose 12 74--4 2 11 5.5 90.5+/ 5— N=8 SAND(SPI,trace gravel,fine to medium grained,brown,loose 16 2-2-2 3 6 N=4 15 2-2-3 4 4 N=5 becoming medium to coarse grained below 14 feet 15 X 15 2-2-3 5 5 (cave in at 14.5 feet after drilling) N=5 18.0 78+/- Z SAND(SP),trace gravel,medium grained,gray,loose 0 11120.5 75.5+/- 2 12 2-2 4 6 19 N N=6 Boring Terminated at 20.5 Feet 0 z QU W H 'a C9 of m N_ m Q ?J O 4 Q J U) W F R' t] EL QR' Z C7 R' O 2 O K LL Stratification lines are approximate.In-situ,the transition may be gradual. Hammer Type: Automatic W w w Advancement Method: Notes: Hollow Stem Au procedures `—` Auger See Exhibit A-2 for description of field ❑ 9 See Appendix B for description of laboratory > procedures and additional data(if any). o Abandonment Method: See Appendix C for explanation of symbols and Z Boring backfilled with soil cuttings after delayed water abbreviations. (9 O levels were measured. WATER LEVEL OBSERVATIONS r, Boring Started:3/5/2014 Boring Completed:3/5/2014 g 19'While Drilling Drill Rig:897 Driller.JG om None Encountered After Drilling Irerracon 1523 S.Bell Ave.,Suite 104 �_ Ames,Iowa Project No.:AB125649 Exhibit: A-3 BORING LOG NO. 3 Page 1 of 1 PROJECT: IA10 Hetfield Monopole Tower CLIENT: Verizon Wireless-Net Great Plains Bloomington,Minnesota SITE: 600 South Maple Street Ames, Iowa (9 LOCATION See Exhibit A-1 ro w w w OJ >0 }(L c' F-i to O W>a ' F- U Latitude:42.017' Longitude: -93.6233° ._,Q ~ ro F J J LL F.. W LL _ W F' W F W Z U) 2'F- Z n = a w� -1 w o� a z�0 r—W �_ Q. a JW oo z a1 �2 Approximate Surface Oev:95.5(Ft.)+/- o a W 2 V a ro ai z 2 O O W DEPTH ELEVATION Ft. O =V U Sticks and Leaves + Ground frozen to about 3.5 feet 10 4-4-5 1 g SAND(SIP),trace Gay,fine grained,brown,loose N=9 2-3-45.5 9o+/- 5 10 N=7 2 12 SAND(SP),trace gravel,fine to medium grained,brown, 10 3-4-6 3 6 medium dense to loose N=10 1 4-6-56 4 5 N=11 becoming medium to coarse grained below 14 feet 10 2-3-4 5 4 N=7 1s.o (cave in at 16.5 feet while drilling) 77 5+/_ SAND(SP),trace gravel,coarse to medium grained,gray, N�;7 o : 20.6 loose 75+/- 2 6 2-2-3 6 19 N Boring Terminated at 20.5 Feet N=5 0 z 0 xr 'a N_ Q J 3 0 z 0 0 J W C9 F- 0 O W Z O 2 O xe w w Stratification lines are approximate.In-situ,the transition may be gradual. Hammer Type: Automatic EL w Advancement Method: See Exhibit A-2 for description of field Notes: "— Hollow Stem Auger procedures p 0 See Appendix B for description of laboratory > procedures and additional data(if any). O Abandonment Method: See Appendix C for explanation of symbols and z Boring backfilled with soil cuttings after delayed water abbreviations. co levels were measured. WATER LEVEL OBSERVATIONS c9 Boring Started:3/5/2014 Boring Completed:3/5/2014 19'While Drilling Irerraccin m Drill Rig:897 Driller.JG None Encountered After Drilling 1523 S.Bell Ave.,Suite 104 Ames,Iowa Project No.:AB125649 Exhibit: A-3 BORING LOG NO. 4 Page 1 of 1 PROJECT: IA10 Hetfield Monopole Tower CLIENT: Verizon Wireless-Net Great Plains Bloomington,Minnesota SITE: 600 South Maple Street Ames,Iowa LOCATION See Exhibit A-1 W Z a ❑ W W O o Co rA ZCl) Latitude:42.0169' Longitude: -93.6233° x '> w of ,- r a Z w r- w W ro= Approximate Surface Elev:95.5(FL)+/- o m Q w U.x ¢ vow �'z ❑w O v1 W 7 V� U 2i DEPTH ELEVATION Ft. Sticks and LeavesAMW + Ground frozen to about 3.5 feet 16 5-12-18 1 13 SAND(SP),trace Gay,fine grained,brown,loose N=30 8A-5 15.5 9o+/- 5 16 N=9 2 7 SAND S ,trace gravel,fine grained,brown,loose 10 2-3-3 3 3 N=6 14 3-4-5 4 9 N=9 becoming medium grained below 14 feet 1 14 2-2-3 5 8 (cave in at 15.5 feet while drilling) N=5 n 18.0 77.5+1 SAND(SP►,trace gravel,coarse to medium grained,gray, SZ 0 .020.5 loose 75+/ 2 14 4-3-2 6 19 N Boring Terminated at 20.5 Feet N=5 O z QO K K Fw- a ❑ N m Q J Z J rr U) w tr O w z _Z 0 0 0 LL ❑ WStratification lines are approximate.In-situ,the transition may be gradual. Hammer Type: Automatic a w Advancement Method: Notes: `L Hollow Stem Auger SE Exhibit A-2 for description of field ❑ procedures See Appendix B for description of laboratory > procedures and additional data(if any). o Abandonment Method: See Appendix C for explanation of symbols and Z Boring backfilled with soil cuttings after delayed water abbreviations. c� levels were measured. WATER LEVEL OBSERVATIONS Boring Started:3/5/2014 Boring Completed:3/5/2014 19'While Drilling Irerracon Drill Rig:897 Driller.JG Om N None Encountered After Drilling 1523 S.Bell Ave.,Suite 104 F Ames,Iowa Project No.:AB125649 Exhibit: A-3 Geotechnical Engineering Report lferracon IA10 Hetfield Monopole■Ames, Iowa March 19, 2014 ■Terracon Project No.AB125649-01 Field Exploration Description The boring locations were staked on-site by Terracon personnel, using a measuring wheel and cloth tape to measure approximate distances to reference features and estimating right angles. A Boring Location Diagram indicating the approximate boring locations is attached. The ground surface elevations indicated on the boring logs were determined by the drill crew using a surveyor's level and rod. The elevations shown are approximate and have been rounded to the nearest 'h foot. These elevations were referenced from a benchmark located at the ground surface elevation of the existing fence comer on the southwest corner of the adjacent Iowa DOT campus. An elevation of 100.0 feet (Terracon site datum)was assigned to this benchmark. The location and elevation of the borings should be considered accurate only to the degree implied by the means and methods used to define it. The borings were drilled with an ATV-mounted rotary drill rig using continuous-flight hollow-stem augers to advance the boreholes, as well as wash boring techniques below a depth of about 20 feet in Boring 1. Representative samples were obtained using thin-walled tube and split-barrel sampling procedures. In the thin-walled tube sampling procedure, a thin-walled, seamless steel tube with a sharp cutting edge is pushed hydraulically into the ground to obtain relatively undisturbed samples of cohesive or moderately cohesive soils. In the split-barrel sampling procedure, a standard 2-inch (outside diameter) split-barrel sampling spoon is driven into the ground with an automatic 140-pound hammer falling a distance of 30 inches. The number of blows required to advance the sampling spoon the last 12 inches of a normal 18-inch penetration is recorded as the standard penetration resistance value (N). These "N" values are indicated on the boring logs at the depths of occurrence. The samples were sealed and transported to the laboratory for testing and classification. The drill crew prepared field logs of the borings. These logs included visual classifications of the materials encountered during drilling as well as the driller's interpretation of the subsurface conditions between samples. The boring logs included with this report represent an interpretation of the field logs and include modifications based on laboratory observation and testing of the samples. Responsive■ Resourceful■ Reliable Exhibit A-4 APPENDIX B SUPPORTING INFORMATION Geotechnical Engineering Report 1terrac®n IA10 Hetfield Monopole ■Ames, Iowa March 19, 2014■Terracon Project No.AB125649-01 Laboratory Testing In the laboratory, moisture content tests were performed on portions of recovered samples. The dry unit weight and unconfined compressive strength of intact, thin-walled tube samples were measured. Hand penetrometer tests were performed to estimate the consistency of select cohesive samples. The results of the laboratory tests are shown on the boring logs in Appendix A at their corresponding sample interval depths. The samples were classified in the laboratory based on visual observation, texture, plasticity, and the laboratory testing described above. The descriptions of the soils indicated on the boring logs are in general accordance with the General Notes in Appendix C and the Unified Soil Classification System (USCS). A summary of the USCS is included in Appendix C of this report. Responsive■ Resourceful■ Reliable Exhibit B-1 APPENDIX C SUPPORTING DOCUMENTS GENERAL NOTES DESCRIPTION OF SYMBOLS AND ABBREVIATIONS RX Water Initially (HP) Hand Penetrometer Encountered Auger Split Spoon Water Level After a Specified Period of Time (T) Torvane ® J V Water Level After (A W a Specified Period of Time I-- (b/f) Standard Penetration Z > W Test(blows per foot) Shelby Tube Macro Core W W ILW Water levels indicated on the soil boring h (PID) Photo-Ionization Detector � 0 W logs are the levels measured in the in W borehole at the times indicated. J y Q Groundwater level variations will occur ME (OVA) Organic Vapor Analyzer Ring Sampler Rock Core over time. In low permeability soils, accurate determination of groundwater Li levels is not possible with short term water level observations. Grab Sample No Recovery DESCRIPTIVE SOIL CLASSIFICATION Soil classification is based on the Unified Soil Classification System.Coarse Grained Soils have more than 50%of their dry weight retained on a#200 sieve;their principal descriptors are:boulders,cobbles,gravel or sand.Fine Grained Soils have less than 50%of their dry weight retained on a#200 sieve;they are principally described as clays if they are plastic,and silts if they are slightly plastic or non-plastic.Major constituents may be added as modifiers and minor constituents may be added according to the relative proportions based on grain size. In addition to gradation,coarse-grained soils are defined on the basis of their in-place relative density and fine-grained soils on the basis of their consistency. LOCATION AND ELEVATION NOTES Unless otherwise noted,Latitude and Longitude are approximately determined using a hand-held GPS device.The accuracy of such devices is variable.Surface elevation data annotated with+/-indicates that no actual topographical survey was conducted to confirm the surface elevation._Instead,the surface elevation was approximately determined from topographic maps of the area. RELATIVE DENSITY OF COARSE-GRAINED SOILS CONSISTENCY OF FINE-GRAINED SOILS (More than 50%retained on No.200 sieve.) (50%or more passing the No.200 sieve.) Density determined by Standard Penetration Resistance Consistency determined by laboratory shear strength testing,field Includes gravels,sands and silts. visual-manual procedures or standard penetration resistance In Standard Penetration or Standard Penetration or Descriptive Tenn Rilueng Sampler Descriptive Tenn Unconfined Compressive N-Value Ring (Density) glowN-VaslFt. Blows/Ft. (Consistency) Strength,Qu,psf B wsIrtler W Blows/Ft. I— Very Loose 0-3 0-6 Very Soft less than 600 0-1 <3 ~ Loose 4-9 7-18 Soft 500 to 1,000 2-4 3-4 C7 Z W Medium Dense 10-29 19-58 Medium-Stiff 1,000 to 2,000 4-8 5-0 !Y F— tn Dense 30-50 59-98 Stiff 2,000 to 4,000 8-15 10.18 Very Dense >50 >99 Very Stiff 4,000 to 8,000 15-30 19-42 Hard >8,000 >30 >42 RELATIVE PROPORTIONS OF SAND AND GRAVEL GRAIN SIZE TERMINOLOGY Descriptive Term(s) Percent of Major Component of other constituents Dry Weight of Sample Partiole Size Trace <15 Boulders Over 12 in.(300 mm) With 15-29 Cobbles 12 in.to 3 In,(300mm to 75mm) Modifier >30 Gravel 3 in.to#4 sieve(75mm to 4.75 mm) Sand 94 to#200 sieve(4.75mm to 0.075mm Silt or Clay Passing 0200 sieve(0.075mm) RELATIVE PROPORTIONS OF FINES PLASTICITY DESCRIPTION Descriptive Term(s) Percent of Term Plasticity Index of other constituents Dry Wejght Non-plastic 0 Trace <5 Low 1 -10 With 5-12 Medium 11-30 Modifier >12 High >30 Irerracon Exhibit C-1 UNIFIED SOIL CLASSIFICATION SYSTEM Soil Classification Criteria for Assigning Group Symbols and Group Names Using Laboratory Tests A Group Group Name Symbol Gravels: Clean Gravels: Cu>_4 and 1 5 Cc<3 E GW I Well-graded gravel' More than 50%of Less than 5%fines Cu<4 and/or 1>Cc>3 E GP Poorly graded gravel F coarse fraction retained Gravels with Fines: Fines classify as ML or MH GM Silty gravel F•G,H Coarse Grained Soils: on No.4 sieve More than 12%fines° Fines classify as CL or CH GC Clayey gravel FGH More than 50%retained on No.200 sieve Sands: Clean Sands: Cu>_6 and 1 <Cc<3 E SW Well-graded sand 50%or more of coarse Less than 5%fines° Cu<6 and/or 1>Cc>3 E SP Poorly graded sand fraction passes No.4 Sands with Fines: Fines classify as ML or MH SM Silty sand G•H•I sieve More than 12%fines° Fines classify as CL or CH Sc Clayey sand G,H,l Inorganic: PI>7 and plots on or above"A"line' CL Lean clay K1.M Silts and Clays: PI<4 or plots below"A"line J ML Silt K,L,M Liquid limit less than 50 Liquid limit-oven dried Organic clay K`9, Fine-Grained Soils: Organic: Liquid limit-not dried <0.75 OL Organic silt KL,M,o 50%or more passes the PI plots on or above°A"line CH Fat Gay K1-M No.200 sieve Inorganic: Silts and Clays: PI plots below"A"line MH Elastic Silt KL.M Liquid limit 50 or more Liquid limit-oven dried Organic clay K,L,M,P Organic: Liquid limit-not dried <0.75 OH Organic silt Highly organic soils: Primarily organic matter,dark in color,and organic odor PT Peat A Based on the material passing the 3-inch(75-mm)sieve H If fines are organic,add Wth organic fines"to group name. B If field sample contained cobbles or boulders,or both,add`smith cobbles 1 If soil contains>_15%gravel,add`bvith gravel"to group name. or boulders,or both"to group name. j If Atterberg limits plot in shaded area,soil is a CL-ML,silty clay. G Gravels with 5 to 12%fines require dual symbols: GW-GM well-graded K If soil contains 15 to 29%plus No.200,add Wth sand"or"with gravel," gravel with silt,GW-GC well-graded gravel with clay,GP-GM poorly whichever is predominant. graded gravel with silt,GP-GC poorly graded gravel with clay. `If soil contains>_30%plus No.200 predominantly sand,add"sandy"to °Sands with 5 to 12%fines require dual symbols: SW-SM well-graded group name. sand with silt,SW-SC well-graded sand with clay,SP-SM poorly graded M If soil contains>_30%plus No.200,predominantly gravel,add sand with silt,SP-SC poorly graded sand with clay "gravelly"to group name. (D 30)2 "PI>_4 and plots on or above"A"line. E Cu=D6/Dj0 Cc= °PI<4 or plots below"A"line. D10 x D80 P PI plots on or above"A"line. F If soil contains>_15%sand,add"with sand"to group name. n PI plots below"A"line. G If fines classify as CL-ML,use dual symbol GC-GM,or SC-SM. 60 For classification of fine-grained soils and fine-grained fraction 50 of coarse-grained soils e ' Equation of"A"-line Horizontal at PI=4 to LL=25.5. W 40 then PI=0.73(LL-20) , ' OR p Equation of"U"-line of z Vertical at LL=16 to PI=71 H 30 then PI=0.9(LL-8) i V J ' 0 cn 20 G a MH or OH 10 4 [_ ML or OL 0Z 0 10 16 20 30 40 50 60 70 80 90 100 110 LIQUID LIMIT(LL) Irerracon Exhibit C-2