Rich Lamb, Foundations Design/Build Engineer

Transcription

1 Minnesota Department of Transportation MEMO Mailstop Gervais Avenue Maplewood, MN 9 DATE: November 17, 16 TO: FROM: CONCUR: Andrew Lutaya, Final Design Project Manager Metro District Paul Martin, Senior Engineer Geotechnical Engineering Section Rich Lamb, Foundations Design/Build Engineer Geotechnical Engineering Section SUBJECT: S.P., Five Noisewalls along Located between Cedar Avenue and Franklin Terrace in Minneapolis Subsurface Investigation & Foundation Recommendations Project Description The existing noise walls in this stretch of highway are deteriorating with age and do not meet current design standards. They will be removed and replaced with new, taller noise walls. Based on the scoping drawings, the five walls in the project are designated NW98, NW99, NW, NW1 and NW3. The noise walls will be supported with 12x18 inch concrete posts embedded in the ground as shown in Figure in Mn/DOT s Standard Plans. The chart shown in this figure assumes that the foundation soils have a minimum friction angle of 3 and that the water-table is below the bottom of the embedded post. A -foot high structure and 3:1 (H:V) slopes was assumed for the analysis. From the table in the standard plans, the post embedment depth would be about 13 to 14 feet. Field Investigation and Foundation Conditions The Foundation Office reviewed the area Geology and the available records of previous subsurface investigations in the area. Foundations field crews performed Cone Penetration Test (CPT) Soundings to evaluate the soil conditions along the proposed noisewall alignments in September and October of 16. Soundings are typically taken approximately every feet along the length of a proposed noisewall, but our crews were unable to access many locations. Copies of these CPT sounding logs and the logs of selected borings and soundings conducted in are included with this report along with drawings showing the locations of the explorations. We completed, seven CPT Soundings for NW99, ten CPT Sounding for NW, seven CPT Soundings for NW98 four CPT Soundings for NW1, and four CPT Soundings for NW3. An Equal Opportunity Employer

2 S.P.,, Five Noisewalls Located Between Cedar Avenue and Franklin Terrace Subsurface Investigation & Foundation Recommendations November 17, 16 In general, the foundation soils encountered in this area consist predominantly of sand, but also included clay and silt. Soundings C and C43 met refusal at depths above the likely bottom-of-post depths. Foundation Analysis The foundation soils were determined to have a minimum friction angle greater than 3 degrees. But the posts may extend below ground water at some locations. Some cobbles, boulders or concrete debris might be encountered in the post holes. Recommendations 1. We recommend the noisewall support posts be embedded to the depths shown on Figure in MnDOT s standard plans manual. 2. We recommend the posts be installed in auger holes and backfilled with clean, free draining granular material. 3. We recommend the project plans include a payment method for obstructions in the post holes. 4. Where groundwater is encountered we recommend the contractor use temporary casing to support the sides of the post hole and to prevent undermining of adjacent structures or pavements. Attachments: Standard Sheet No (2 of 3) CPT Index Sheet SPT Index Sheet Subsurface Exploration Layout Drawings (2 sheets) NWalls 99 and 98 Subsurface Condition Summary Table Logs C3-C32, S-11(), C3A-C28 Logs C-2(), C36, C38, C37A, C4, C41, C43, C44 NWall Subsurface Condition Summary Table Logs C27-C2, C1A(), C24, C216(), C-1(), C23, C-2(), C217(), C-4(), C21, C-(), C18-C1 NWall 1 Subsurface Condition Summary Table Logs C14 C11 NWall 3 Subsurface Condition Summary Table Logs C, C9, T(), C6, C2 cc: Rachel Broughton, Metro Designer Timothy Clyne, Metro Materials Engineer Bradley Skow, Chief Geotechnical Engineer File An Equal Opportunity Employer Page 2 of 2

3 USE 1/2'' DIA. HEX HEAD BOLT WITH 2'' O.D. X 1/8'' WASHER OR FLAT HEAD CAP SCREW WITH MIN. 1" DIA. HEAD. GALVANIZE PER SPEC COUNTERSINK TO FLUSH FIT. POST EMBEDMENT TABLE FILL HEIGHT W = 1 FT. MAXIMUM 13" MAX. < POST < POST '' H '' WALL POST HEIGHT SPACING ( FT. ) ( FT. ) POST SIZE ( IN. ) REINF. BARS 13 SHEAR STIRRUP SPACING (IN.) 9 PRE- STRESSED STRANDS POST EMBEDMENT 1 LEVEL 1(V):4(H) 1(V):3(H) 1(V):2(H) GROUND SLOPE SLOPE SLOPE 3'' X '' STANDARD ROUGH SAWN PLANK 8 12 X 18 4 NO ' '' 6' '' 7' '' 8' '' 12'' MIN. 18'' POST DIMENSIONS 14 18'' 2" CLEAR (TYP.) SEE TABLE FOR BAR SIZES. PLACE ALL BARS TIGHT AGAINST SHEAR STIRRUP. 2 EQ. SPS. 12'' REINFORCED COIL THREAD SEE TABLE FOR SHEAR STIRRUP SPACING. CONCRETE ANCHORS 7 WHEN 6 BARS ARE REQUIRED THESE 2 BARS MAY BE OMITTED IN UPPER 1/3 OF POST. 18'' 1/2'' CHAMFER OR RADIUS INCLUDING ENDS (TYP.) POST DETAILS 9'' 2" CLEAR (TYP.) 11 12'' 14 PRESTRESSED SEE TABLE FOR SHEAR STIRRUP SPACING. COIL THREAD CONCRETE ANCHORS FOR FASTENERS. ADJUST TO MISS STRANDS. 7 SEE TABLE FOR STRANDS REQUIRED. SEE STRAND PLACEMENT DETAILS BELOW. SLOPE X X X X X X X X X X X X X X X X X X 18 4 NO. 4 4 NO. 4 4 NO. 4 NO. 4 NO. 4 NO. 6 NO. 6 NO. 6 NO. 6 NO. 6 6 NO. 6 6 NO. 6 6 NO. 6 6 NO. 7 6 NO. 7 6 NO. 7 6 NO. 8 6 NO ' '' 7' '' 7' '' 8' '' 7' '' 7' '' 8' '' 9' '' 7' '' 8' '' 8' '' 9' '' 8' '' 8' '' 8' '' 9' '' 8' '' 8' '' 9' '' ' '' 8' '' 9' '' 9' '' ' '' 8' '' 9' '' 9' '' ' '' 9' '' 9' '' ' '' ' '' 9' '' ' '' ' '' 11' '' 9' '' ' '' ' '' 11' '' ' '' ' '' 11' '' 12' '' ' '' ' '' 11' '' 12' '' ' '' 11' '' 11' '' 13' '' 11' '' 11' '' 12' '' 13' '' 11' '' 11' '' 12' '' 13' '' 11' '' 12' '' 12' '' 14' '' 12' '' 12' '' 13' '' 14' '' 12' '' 12' '' 13' '' 1' '' DESIGN CRITERIA: 12 AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, INCLUDING 13 INTERIMS. 12 NATIONAL DESIGN SPECIFICATION (NDS) FOR WALL CONSTRUCTION - LRFD = 3 ( GRANULAR ) g = 1 P.C.F. WIND LOAD = 19 P.S.F. F = P.S.I. WOOD PLANKING AND BATTEN. b F b = 1 P.S.I. ALL OTHER WOOD MEMBERS. POST DESIGN CRITERIA NO. OF STRANDS 6 OR LESS f'ci 3 4 PSI f'c 4 PSI X 18 6 NO ' '' 13' '' 14' '' 1' '' 7 OR MORE 4 PSI 6 PSI 1/4" X 18 6 NO. 8 12' '' 13' '' 14' '' 17' '' 12 NOTES: USE OF THIS STANDARD ASSUMES SOIL TESTS AT MAXIMUM FT. INTERVALS AT EACH SITE AND SOILS ENGINEER REVIEWED RESULTS AND CONCURS WITH USE OF THIS STANDARD. NO. STRANDS: " POST EMBEDMENT DEPTH IS BASED ON THE WATER TABLE BEING BELOW THE BOTTOM OF EACH POST, OTHER CONDITIONS REQUIRE A SPECIAL DESIGN. FILL HEIGHT EMBEBMENT W H ' MAX. 1' MAX. 1 1' 6'' ` 4' '' MAX. SPACING 1' 6'' ` CONC. ANCHOR 3' " MIN. BERM 6'' SLOPE VARIES 1' '' ` 1(V) : (H) TO 1(V) : 6(H) SLOPE AWAY FROM WALL FOR DRAINAGE 1 STRAND PLACEMENT DETAILS 2" x 8" NOMINAL BATTEN (TYP.) 2'' X 8'' OR 2'' X 6'' NOM. TONGUE & GROOVE WOOD PLANKS ABOVE GROUND SEE VERTICAL NAILER SPLICE DETAIL ON STANDARD FIGURE (1 OF 3) 3' '' MIN. 1' '' MIN EDGE OF CURB OR OUTSIDE EDGE OF PAVEMENT PROVIDE DRAINAGE AWAY FROM WALL 3'' X 8'' STANDARD ROUGH SAWN PLANKS BELOW GROUND ON FILL SIDE 6. FASTEN WITH.177" MIN. DIA. X 4 1/2'' LONG RING SHANK GALVANIZED NAILS. EMBEBMENT H 2' MAX. 1 SLOPE VARIES TOP OF POST 1(V) : (H) TO 1(V) : 6(H) SLOPE FOR DRAINAGE 3' " MIN. BERM 1 1' 6'' ` 4' '' MAX. SPACING 1' 6'' ` AWAY FROM WALL CONC. ANCHOR SECTION AT POST WITHOUT EARTH FILL 2" x 8" NOMINAL BATTEN (TYP.) 2'' X 8'' OR 2'' X 6'' NOM. TONGUE & GROOVE WOOD PLANKS SEE VERTICAL NAILER SPLICE DETAIL ON STANDARD FIGURE (1 OF 3) GALVANIZED NAILS. SLOPE VARIES 6'' MIN. 3'' X 8'' STANDARD ROUGH SAWN PLANKS BELOW GROUND ON FILL SIDE 6 8. FASTEN WITH.177" MIN. DIA. X 4 '' LONG RING SHANK 1(V) : (H) TO 1(V) : 6(H) SLOPE AWAY FROM WALL FOR DRAINAGE 3' " MIN. BERM 1 REFER TO SPECIAL PROVISIONS FOR ADDITIONAL INFORMATION. FOR SLOPES BETWEEN THOSE SHOWN, USE THE POST EMBEDMENT FOR THE STEEPER SLOPE OR USE INTERPOLATION. FOR SLOPES 1 (V):6(H) OR FLATTER, USE POST EMBEDMENT SHOWN FOR LEVEL GROUND. REFER TO SPECIAL PROVISIONS FOR REINFORCEMENT OF POSTS LOCATED WITHIN FT. OF THE OUTSIDE EDGE OF A ROADWAY SHOULDER AND POSTS SUPPORTING GLUE LAMINATED RUB RAIL (STANDARD FIGURE ). FABRICATOR TO IDENTIFY THESE POSTS WITH PERMANENT MARK ON BOTTOM OF POST. FOR CONCRETE POSTS WITH THE SAME LENGTH, USE THE LARGEST NUMBER OF PRESTRESSED STRANDS OR REBARS REQUIRED FOR THAT POST LENGTH. USE MIX 3W82 FOR ALL POSTS. REFER TO SPEC FOR ADDITIONAL REQUIREMENTS. USE A MIN. OF 4, " DIA. (AREA =.13 SQ. IN.) LOW-RELAXATION PRESTRESSED STEEL STRANDS PER SPEC. 3348, WITH 27 KSI ULTIMATE STRENGTH, INITIAL PRESTRESS = 3,9 LBS. PER STRAND. CUT STRANDS FLUSH WITH CONCRETE. COVER ENDS WITH SEALANT PER APPROVED PRODUCTS LIST "BRIDGE - PRESTRESSED BEAMS - CUT STRAND SEALANT." USE EPOXY COATED GRADE 6 REINFORCING BARS PER SPEC POST EMBEDMENT DEPTH IN THE TABLE IS BASED ON A 3 FT. MIN. BERM IN FRONT OF THE WALL. 2 WHEN THE CURB LINE IS CLOSER THAN 1(V):2(H) SLOPE, A SPECIAL DESIGN IS REQUIRED. 3 MINIMUM CONCRETE STRENGTH AT TIME OF PRESTRESS TRANSFER. 4 MIN. CONCRETE STRENGTH AT WHICH THE POST CAN BE TRANSPORTED AND PLACED. SEE POST EMBEDMENT TABLES FOR MAXIMUM SLOPE. 6 SEE SPEC FOR ADDITIONAL PRESERVATIVE TREATMENT REQUIREMENTS FOR LUMBER PLACED BELOW GRADE. 7 PLACE COIL THREAD ANCHORS ON ALTERNATE SIDES OF POST FACE CENTERLINE. MINIMUM FACTORED PULL OUT OF 2. KIPS PER ANCHOR. GALVANIZE ANCHORS PER SPEC OR ELECTROPLATE PER ASTM B633 SC4 TYPE II. COMPLETELY FILL UNUSED ANCHORS WITH A MnDOT APPROVED/QUALIFIED PRODUCT PER 3372, SILICONE JOINT SEALANT. 8 FOR WALL TYPE 1A AND 2A, OMIT 3" X 8" PLANKING AT BASE OF WALL AND LEAVE A 2" TO 4" AIRSPACE BETWEEN GROUND AND BOTTOM 2" X 8" PLANK. 9 USE NO. 3 BARS FOR SHEAR STIRRUPS. PLACE FIRST STIRRUP 3" FROM EACH END. REFER TO STANDARD FIGURE (1 OF 3) FOR NAILING PATTERN. 11 MINIMUM CENTER-TO-CENTER SPACING OF 6", WITH INTERMEDIATE STRANDS PLACED SYMMETRICALLY (TYP. FOR ALL CONFIGURATIONS). 12 MINIMUM CENTER-TO-CENTER SPACING OF 12", WITH INTERMEDIATE STRANDS PLACED SYMMETRICALLY (TYP. FOR ALL CONFIGURATIONS). 13 NO REINFORCEMENT SPLICES ALLOWED. (WALL TYPE 1, 1A, 2 OR 2A) 14 12" MIN, 13" MAX. TO ALLOW FOR DRAFT OF FORM. REVISION: APPROVED: FEBRUARY 16, 16 STATE BRIDGE ENGINEER SECTION AT POST WITH EARTH FILL (MAX. FILL RETAINED 1'-") (WALL TYPE 1 ONLY) DEPARTMENT MINNESOTA OF TRANSPORTATION STATE DESIGN ENGINEER REVISED: APPROVED: WOOD PLANKING NOISE WALL WITH CONCRETE POSTS STANDARD PLAN OF 3

4 Minnesota Department of Transportation Geotechnical Section Cone Penetration Test Index Sheet 1. (CPT 1.) USER NOTES, ABBREVIATIONS AND DEFINITIONS This Index sheet accompanies Cone Penetration Test Data. Please refer to the Boring Log Descriptive Terminology Sheet for information relevant to conventional boring logs. This Cone Penetration Test (CPT) Sounding follows ASTM D 778 and was made by ordinary and conventional methods and with care deemed adequate for the Department's design purposes. Since this sounding was not taken to gather information relating to the construction of the project, the data noted in the field and recorded may not necessarily be the same as that which a contractor would desire. While the Department believes that the information as to the conditions and materials reported is accurate, it does not warrant that the information is necessarily complete. This information has been edited or abridged and may not reveal all the information which might be useful or of interest to the contractor. Consequently, the Department will make available at its offices, the field logs relating to this sounding. Since subsurface conditions outside each CPT Sounding are unknown, and soil, rock and water conditions cannot be relied upon to be consistent or uniform, no warrant is made that conditions adjacent to this sounding will necessarily be the same as or similar to those shown on this log. Furthermore, the Department will not be responsible for any interpretations, assumptions, projections or interpolations made by contractors, or other users of this log. Water pressure measurements and subsequent interpreted water levels shown on this log should be used with discretion since they represent dynamic conditions. Dynamic Pore water pressure measurements may deviate substantially from hydrostatic conditions, especially in cohesive soils. In cohesive soils, water pressures often take extended periods of time to reach equilibrium and thus reflect their true field level. Water levels can be expected to vary both seasonally and yearly. The absence of notations on this log regarding water does not necessarily mean that this boring was dry or that the contractor will not encounter subsurface water during the course of construction. CPT Terminology CPT... Cone Penetration Test CPTU... Cone Penetration Test with Pore Pressure measurements SCPTU... Cone Penetration Test with Pore Pressure and Seismic measurements Piezocone...Common name for CPTU test (Note: This test is not related to the Dynamic Cone Penetrometer DCP) qt TIP RESISTANCE The resistance at the cone corrected for water pressure. Data is from cone with 6 degree apex angle and a cm 2 end area. fs SLEEVE FRICTION RESISTANCE The resistance along the sleeve of the penetrometer. FR Ratio of sleeve friction over corrected tip resistance. FR = fs/qt Vs Shear Wave Velocity A measure of the speed at which a siesmic wave travels through soil/rock. PORE WATER MEASUREMENTS Pore water measurements reported on CPT Log are representative of water pressures measured at the U2 location, just behind the cone tip, prior to the sleeve, as shown in the figure below. These measurements are considered to be dynamic water pressures due to the local disturbance caused by the cone tip. Dynamic water pressure decay and Static water pressure measurements are reported on a Pore Water Pressure Dissipation Graph. U2 SBT SOIL BEHAVIOR TYPE Soil Classification methods for the Cone Penetration Test are based on correlation charts developed from observations of CPT data and conventional borings. Please note that these classification charts are meant to provide a guide to Soil and should not be used to infer a soil classification based on grain size distribution. The numbers corresponding to different regions on the charts represent the following soil behavior types: 1. Sensitive, Fine Grained 2. Organic Soils - Peats 3. Clays - Clay to Silty Clay 4. Silt Mixtures - Clayey Silt to Silty Clay. Sand Mixtures - Silty Sand to Sandy Silt 6. Sands - Clean Sand to Silty Sand 7. Gravelly Sand to Sand 8. Very Stiff Sand to Clayey Sand 9. Very Stiff, Fine Grained Note that engineering judgment, and comparison with conventional borings is especially important in the proper interpretation of CPT data in certain geomaterials. The following charts are used to provide a Soil for the CPT Data. Robertson CPT 199 Soil Behavior type based on friction ratio Robertson CPTU 199 Soil Behavior type based on pore pressure where... QT... normalized cone resistance Bq... pore pressure ratio Fr... Normalized friction ratio σvo... overburden pressure σ vo... effective over burden pressure u2... measured pore pressure u... equilibrium pore pressure G:\GEOTECH\PUBLIC\FORMS\CPTINDEX.DOC January 3, 2

5 Minnesota Department of Transportation Geotechnical Section Boring Log Descriptive Terminology (English Units) USER NOTES, ABBREVIATIONS AND DEFINITIONS - Additional information available in Geotechnical Manual. This boring was made by ordinary and conventional methods and with care deemed adequate for the Department's design purposes. Since this boring was not taken to gather information relating to the construction of the project, the data noted in the field and recorded may not necessarily be the same as WH... Weight of Hammer WR... Weight of Rod Mud... Drilling Fluids in Sample CS... Continuous Sample very loose...-4 loose...- medium dense dense...2- very dense...> that which a contractor would desire. While the Consistency - Cohesive Soils BPF Department believes that the information as to the conditions and materials reported is accurate, it does not warrant that the information is necessarily complete. This information has been edited or abridged and may not reveal all the information which might be useful or of interest to the contractor. Consequently, the Department will make available very soft...-1 soft firm...-8 stiff very stiff hard very hard...> 6 at its offices, the field logs relating to this boring. Since subsurface conditions outside each borehole are unknown, and soil, rock and water conditions cannot be relied upon to be consistent or uniform, no warrant is made that conditions adjacent to this boring will necessarily be the same as or similar to those shown on this log. Furthermore, the Department will not be responsible for any interpretations, assumptions, projections or interpolations made by contractors, or other users of this log. Water levels recorded on this log should be used with discretion since the use of drilling fluids in borings may seriously distort the true field conditions. Also, water levels in cohesive soils often take extended periods of time to reach equilibrium and thus reflect their true field level. Water levels can be expected to vary both seasonally and yearly. The absence of notations on this log regarding water does not necessarily mean that this boring was dry or that the contractor will not encounter subsurface water during the course of construction. WATER MEASUREMENT AB... After Bailing AC... After Completion AF... After Flushing w/c... with Casing w/m... with Mud WSD... While Sampling/Drilling w/aug... with Hollow Stem Auger MISCELLANEOUS NA... Not Applicable w/... with w/o... with out sat... saturated SOIL/CORE TESTS SPT N 6... ASTM D186 Modified Blows per foot with 14 lb. hammer and a standard energy of 2 ft-lbs. This energy represents 6% of the potential energy of the system and is the average energy provided by a Rope & Cathead system. MC... Moisture Content COH... Cohesion γ... Sample Density LL... Liquid Limit PI... Plasticity Index Φ... Phi Angle REC... Percent Core Recovered RQD... Rock Quality Description (Percent of total core interval consisting of unbroken pieces 4 inches or longer) ACL... Average Core Length (Average length of core that is greater than 4 inches long) Core Breaks... Number of natural core breaks per 2-foot interval. DISCONTINUITY SPACING Fractures Distance Bedding Very Close... <2 inches...very Thin Close inches...thin Mod. Close inches...medium Wide... >36 inches...thick WS PD DRILLING SYMBOLS Vane Shear Test Washed Sample (Collected during plug drilling) Augered Plug Drilled Split Tube Sample (SPT N6 2 in. spilt tube with liners) Thin Wall Sample (3 in. Shelby Tube) % Sand Core Drilled 7 DRILLING OPERATIONS (NV Core Barrel unless otherwise noted) 8 AUG... Augered CS Continuous Soil 9 CD... Core Drilled Sample LS DBD... Disturbed by Drilling A/J % S Augered & Jetted DBJ... Disturbed by Jetting Jet Jetted PD... Plug Drilled A/P ST... Split Tube (SPT test) Augered & Plug Drilled TW... Thinwall (Shelby Tube) WS... Wash Sample RELATIVE DENSITY NSR... No Sample Retrieved Compactness - Granular Soils Index Sheet No. 3. March 3 G:\geotech\Public\Forms\INDEX3.doc BPF 6 COLOR blk... Black wht...white grn... Green brn...brown orng... Orange yel...yellow dk... Dark lt...light IOS... Iron Oxide Stained GRAIN SIZE /PLASTICITY VF... Very Fine pl...plastic F... Fine slpl...slightly Cr... Coarse Plastic SOIL/ROCK TERMS C... Clay Lmst...Limestone L... Loam Sst...Sandstone S... Sand Dolo...Dolostone Si... Silt wx...weathered G... Gravel (No. Sieve to 3 inches) Bldr... Boulder (over 3 inches) T... till (unsorted, nonstratified glacial deposits) Mn/DOT Triangular Textural Soil Classification System 4 SC SCL 3 3 (plastic) SL (slightly plastic) C CL L % % Silt 8 7 Si SiCL SiL 7 6 % Clay 8 4 Si 3 9 %

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8 Noisewall 99 Summary of Subsurface Conditions Conditions Encountered Water Possible Impacts Loose sand to near elev. 832, then medium dense sands to termination near No water indicated, but perched layers may be Loose sand may tend to collapse. c3 elev. 822 Dense undefined near surface, generally medium dense to dense sands to No water indicated, but perched layers may be Loose sand may tend to collapse. c34 termination near elev. 822 Dense undefined near surface, generally medium dense to dense sands to No water indicated, but perched layers may be Loose Sand may tend to collapse. c33a termination near elev. 813 c32 Dense undefined near surface, generally medium dense to dense sands to refusal near elev. 818 No water indicated, but perched layers may be Loose Sand may tend to collapse. Medium Dense Sands near surface. Very loose sand near elev. 823 Sand to Water observed while drilling below elev. 81 Loose Sand may tend to collapse. Water elevation s11 () termination near elev. 812 could vary Generally sand, loose to near elev. 829, then medium dense to dense to refusal No water indicated, but perched layers may be Loose Sand may tend to collapse. c3a near elev. 81 1/2 Generally sand, loose to near elev. 829, then medium dense to dense to No water indicated, but perched layers may be Loose Sand may tend to collapse. c29 termination near elev. 816 Generally sand, mostly medium dense to dense, but very loose near elev Water was indicated below elev. 82 Loose Sand may tend to collapse. Water elevation c28 Sounding terminated on refusal near elev /2 could vary. Noisewall 98 Summary of Subsurface Conditions Conditions Encountered Water Possible Impacts c2 Mostly Sands to refusal near elev No water indicated. c36 Dense undefined near surface, sands to termination near elev. 818 No water indicated, but perched layers may be Dense undefined near surface, generally sands to refusal near elev. 819 Loose No water indicated, but perched layers may be c38 between approximate elevations 83 and 827 Mostly sands, but contains sandy loam and silt to termination near elev No water indicated, but perched layers may be c37a Dense undefined near surface, mostly sands to termination near elev No water indicated, but perched layers may be c4 Some silt and clay layers near 818. c41 Dense undefined near surface, sands to termination near elev No water indicated. Multiple undefined layers may indicated debris or wood in the soil; otherwise No water indicated. c43 generally sands to refusal near elev Undefined layer near elev. 831 may indicated debris or wood in the soil; No water indicated. c44 otherwise generally sands to refusal near elev Loose sand near elevation 83 may tend to collapse. Loose Sand and soft Sandy Loam near elevation 83 may tend to collapse. Soft Sandy Loam near elevation 829 may tend to collapse. Multiple undefined layers may indicated debris or wood in the soil Undefined layer near elev. 831 may indicated debris or wood in the soil.

9 84.9 NOISE WALL Latitude (North)=44 7'9.48" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3269 Y= Longitude (West)=93 14'49.48" Ground UBC 199 FR C3 394 CPT Truck /21/ Bottom of Hole 19.6,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(28) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

10 839.2 NOISE WALL 99 Latitude (North)=44 7'8.1" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3279 Y= Longitude (West)=93 14'49.34" Ground UBC 199 FR C CPT Truck /29/ Bottom of Hole 17.6, Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\A Class: Rock Class: Edit: ( )\test(42)_P Date: /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

11 838.1 NOISE WALL 99 Latitude (North)=44 7'7.4" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3418 Y= Longitude (West)=93 14'47.42" C33A 394 CPT Truck Ground UBC 199 FR /26/ Bottom of Hole 2.8,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(33) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

12 839.1 NOISE WALL 99 Latitude (North)=44 7'6.49" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=316 Y=16368 Longitude (West)=93 14'46." Ground UBC 199 FR C CPT Truck /21/ Bottom of Hole 21.92,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(27) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

13 slpl Sandy Loam w/ G, dk brn, moist, fill Trunk Highway/ Boring No. Ground OH Sign 6 - North Interstate Highway 94 S Hennepin Coord:X=3496 Y=16363 Drill Machine 711 Drilling Latitude (North)=44 7'.9" Longitude (West)=93 14'46.33" Hammer CME Automatic Calibrated Completed 6/1/ DEPTH This boring was taken by BRAUN under a consultant contract for Mn/DOT Elev. LABORATORY LOG & TEST RESULTS - SUBSURFACE EXPLORATION Lithology UNIQUE NUMBER 7383 Classification Drilling Operation SPT N6 REC MC RQD COH (psf) (ft) (pcf) ACL Core Breaks Soil Rock Other Tests Or Remarks Formation or Member Sand w/ with trace G, dk brn, moist, meddense, fill 14 PID =. ppm Fine Sand w/ G, brn, moist, meddense, fill 21 PID =. ppm Loamy Sand, w/ brick debris, dk brn, moist, dense to Vloose, fill 4 PID =. ppm Sand w/ trace G, brn, moist, Vloose 4 PID =. ppm 2 Sand w/ G, lt brn, moist, meddense 24 PID =. ppm Fine Loamy Sand, brn, sat, loose Bottom of Hole - 31'. Water not observed while drilling. Boring then grouted. 8 PID =. ppm Index Sheet Code 3. Soil Class:P. Martin Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

14 837.6 NOISE WALL 99 Latitude (North)=44 7'4.91" UNIQUE NUMBER 8121 Trunk Highway/ Hennepin Co. Coordinate: X=381 Y=1632 Longitude (West)=93 14'41.9" C3A 394 CPT Truck Ground UBC 199 FR /13/ Bottom of Hole 23.3,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(18) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

15 839.4 NOISE WALL 99 Latitude (North)=44 7'4." UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3923 Y= Longitude (West)=93 14'4.4" Ground UBC 199 FR C CPT Truck SHEET 1 of 2 9/13/ Index Sheet Code 3. Bottom of Hole 24.1 (Continued Next Page) E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(1) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

16 841.4 NOISE WALL 99 Latitude (North)=44 7'4.28" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3991 Y= Longitude (West)=93 14'39.4" Ground UBC 199 FR C CPT Truck /13/ Bottom of Hole.6,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(16) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

17 NOISE WALL 98 Latitude (North)=44 7'1.72" UNIQUE NUMBER 7396 Trunk Highway/ 94 Hennepin Co. Coordinate: X=3948 Y=1632 Longitude (West)=93 14'4.6" c2 146 CPT Truck (H) Hasselquist Ground UBC 199 FR /22/ Bottom of Hole 3.1,Refusal on rocks or boulders Index Sheet Code 3. C:\ \Cone\F22L14C.DAT Soil Class: Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

18 843. NOISE WALL 98 Latitude (North)=44 7'1.24" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3618 Y=16314 Longitude (West)=93 14'39.8" Ground UBC 199 FR C CPT Truck /14/ Bottom of Hole 2.1,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(24) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

19 837.7 NOISE WALL Latitude (North)=44 7'.37" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=36 Y=16366 Longitude (West)=93 14'3.86" Ground UBC 199 FR C CPT Truck /22/ Bottom of Hole 18.98,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(3) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

20 838.6 NOISE WALL 98 Latitude (North)=44 7'.3" UNIQUE NUMBER 812 Trunk Highway/ Hennepin Co. Coordinate: X=36384 Y=16364 Longitude (West)=93 14'34." C37A 394 CPT Truck Ground UBC 199 FR /26/ Bottom of Hole 2.27,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(3) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

21 839. NOISE WALL 98 Latitude (North)=44 7'.34" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=36479 Y=16363 Longitude (West)=93 14'32.67" Ground UBC 199 FR C4 394 CPT Truck /22/ Bottom of Hole 2.47,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(31) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

22 839.7 NOISE WALL 98 Latitude (North)=44 7'.29" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=361 Y=1638 Longitude (West)=93 14'31.68" Ground UBC 199 FR C CPT Truck /27/ Bottom of Hole 2.21,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(38) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

23 84.2 NOISE WALL 98 Latitude (North)=44 7'.3" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=36727 Y=1636 Longitude (West)=93 14'29.23" Ground UBC 199 FR C CPT Truck /26/ Bottom of Hole 14.84,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(36) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

24 84.9 NOISE WALL 98 Latitude (North)=44 7'.34" UNIQUE NUMBER 8122 Trunk Highway/ Hennepin Co. Coordinate: X=3683 Y=16364 Longitude (West)=93 14'27.73" Ground UBC 199 FR C CPT Truck /26/ Bottom of Hole 17.2,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(37) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

25 Noisewall Summary of Subsurface Conditions Conditions Encountered Water Possible Impacts Mostly medium dense to dense sands to termination near elev /2. Loose No water indicated, but perched layers may be Loose sand may tend to collapse. Water elevation c27 sand near elev. 829 may vary. c26 c2 c 1a () c24 c216 () c 1 () c23 c 2 () c217 () c 4 () c21 c c18 c17 c16 c1 Loose undefined near surface, generally medium dense to dense sands to refusal near elev. 817 Mostly medium dense to dense sands to termination near elev. 81. Loose sand near elev. 829 Generally very stiff Sandy Loam to near elev. 89. Loose sand near elev. 88 then very dense sandy loam to termination near elev. 793 Loose to medium dense Sands to near elev /2. Dense sand to termination near elev. 817 Generally sand, loose to near elev. 826, then dense to refusal near elev. 81 Generally sand and sandy loam,medium dense to near elev. 81, then very dense and hard to termination near elev. 79 Generally sand, mostly medium dense to dense. Clay layer and possible debris with very loose undefined near elev. 832, loose to near elev Sounding terminated on refusal near elev. 823 No water indicated, but perched layers may be No water indicated, but perched layers may be Water measured below elev. 89 during drilling. No water indicated, but perched layers may be No water indicated, but perched layers may be Water measured below elev. 83 during drilling. No water indicated, but perched layers may be Generally sand or sandy loam, mostly medium dense to dense to near elev 814, Water measured below elev during very dense below. Terminated near elev. 81 drilling. Undefined near surface. Generally sands, mostly medium dense to dense, but No water indicated, but perched layers may be soft silt layer near elev Sounding terminated on refusal near elev. 811 Generally sand and sandy loam, medium dense to very dense. Boring terminated near elev. 84 Water measured below elev. 87. during drilling. Undefined and loose near elev Generally sand, mostly medium dense to No water indicated, but perched layers may be dense. Sounding terminated near elev. 818 Generally sand, mostly medium dense to dense. Very dense sandy loam below No water was observed while drilling. elev Boring terminated near elev. 83. Generally sand, mostly medium dense to dense, but loose near elev No water indicated, but perched layers may be Sounding terminated on refusal near elev. 81 1/2 Dense undefined near surface. Generally sand, mostly medium dense to No water indicated, but perched layers may be dense, but very loose near elev Sounding terminated on refusal near elev /2 Dense undefined near surface. Generally sand, mostly medium dense, but No water indicated, but perched layers may be loose near elev Sounding terminated near elev. 813 Dense undefined near surface. Generally sand, mostly medium dense, but No water indicated, but perched layers may be loose near elev Sounding terminated near elev Loose sand may tend to collapse. Water elevation may vary. Loose Sand may tend to collapse. Loose Sand may tend to collapse. Water elevation could vary Loose Sand may tend to collapse. Water elevation could vary Loose Sand may tend to collapse. Loose Sand may tend to collapse. Water elevation could vary. Undefined could be fill gravel or wood Water elevation could vary. Loose soils may tend to collapse. Perched water could be troublesome. Loose Sand may tend to collapse. Water elevation could vary. Undefined could be debris in fill. Water elevation could vary. Loose Sand may tend to collapse. Water elevation could vary. Loose Sand may tend to collapse. Water elevation could vary. Loose Sand may tend to collapse. Water elevation could vary. Loose Sand may tend to collapse. Water elevation could vary.

26 84.3 NOISE WALL Latitude (North)=44 7'3.67" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3611 Y=1634 Longitude (West)=93 14'37.73" Ground UBC 199 FR C CPT Truck /27/ Bottom of Hole 24.48,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(39) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

27 839.4 NOISE WALL Latitude (North)=44 7'3." UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=36179 Y= Longitude (West)=93 14'36.84" Ground UBC 199 FR C CPT Truck /27/ Bottom of Hole 22.71,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(4) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

28 84. NOISE WALL Latitude (North)=44 7'3.19" UNIQUE NUMBER 812 Trunk Highway/ Hennepin Co. Coordinate: X=3638 Y=16332 Longitude (West)=93 14'3." Ground UBC 199 FR C2 394 CPT Truck 84. 9/21/ Bottom of Hole 26.19,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(26) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

29 RETAINING WALL Interstate Highway 94 C-1A 823. BIT, 1/2" CONC, 8" slpl Sandy Loam w/ G, brn, moist, wet Trunk Highway/ slpl Fine Sandy Loam w/ a little G, red-brn, moist, meddense Boring No. Ground Hennepin Coord:X=36327 Y=16328 Drill Machine 714 Drilling Latitude (North)=44 7'2.48" Longitude (West)=93 14'34.78" Hammer CME Automatic Calibrated Completed 6/23/ DEPTH This boring was taken by BRAUN under a consultant contract for Mn/DOT Elev. LABORATORY LOG & TEST RESULTS - SUBSURFACE EXPLORATION Lithology UNIQUE NUMBER Classification Drilling Operation SPT N6 REC MC RQD COH (psf) (ft) (pcf) ACL Core Breaks Soil Rock Other Tests Or Remarks Formation or Member nonpl Fine Sandy Loam w/ a little G, brn, moist, dense to Vdense Fine Sand w/ trace of G, brn, sat, Vloose /.3 2 nonpl Sandy Loam w/ G, gry-brn, moist, Vdense 27 / with layer of Sand at 29 1/2' Bottom of Hole '. Water measured at 19' while sampling and/or drilling Boring then grouted. 33 /.2 Index Sheet Code 3. Soil Class:P. Martin Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

30 841.2 NOISE WALL Latitude (North)=44 7'3.2" UNIQUE NUMBER 819 Trunk Highway/ Hennepin Co. Coordinate: X=3638 Y=16333 Longitude (West)=93 14'33.98" Ground UBC 199 FR C CPT Truck /21/ Bottom of Hole 24.82,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(2) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

31 NOISE WALL Latitude (North)=44 7'2.88" UNIQUE NUMBER Trunk Highway/ 94 Hennepin Co. Coordinate: X=3648 Y= Longitude (West)=93 14'32.66" c CPT Truck (H) Hasselquist Ground 84.3 UBC 199 FR /3/ Bottom of Hole 26.31,Refusal on rocks or boulders Index Sheet Code 3. C:\278141\Cone\F3G1C.DAT Soil Class: Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

32 BIT, " CONC, 9 1/2" AGG, dk brn, moist Trunk Highway/ RETAINING WALL Interstate Highway 94 C Boring No. Ground Hennepin Coord:X=36473 Y=16329 Drill Machine 714 Drilling Latitude (North)=44 7'2.27" Longitude (West)=93 14'32.7" Hammer CME Automatic Calibrated Completed 6/1/ DEPTH This boring was taken by BRAUN under a consultant contract for Mn/DOT Elev. LABORATORY LOG & TEST RESULTS - SUBSURFACE EXPLORATION Lithology UNIQUE NUMBER Classification Drilling Operation SPT N6 REC MC RQD COH (psf) (ft) (pcf) ACL Core Breaks Soil Rock Other Tests Or Remarks Formation or Member Sand w/trace G, brn, moist, meddense pl Sandy Loam w/ G and bldrs, brn, moist, hard /.6 slpl Fine Sandy Loam w/ G and bldrs, brn, moist to wet, Vdense 2/.6 / Fine Sand w/ G, brn, sat, Vdense slpl Fine Sandy Loam w/ G, brn, sat, Vdense Bottom of Hole '. Water measured at 24' while sampling and/or drilling Boring then grouted. 8/.6 11/.6 /.4 /.2 Index Sheet Code 3. Soil Class:P. Martin Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

33 841. NOISE WALL Latitude (North)=44 7'2.7" UNIQUE NUMBER 818 Trunk Highway/ Hennepin Co. Coordinate: X=3688 Y= Longitude (West)=93 14'31.1" Ground UBC 199 FR C CPT Truck /27/ Bottom of Hole 18.2,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(41) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

34 BIT, 1/2" CONC, 9" slpl Sandy Loam w/ G, dk brn, moist, meddense Sand and Gravel, brn, moist, meddense Trunk Highway/ Boring No. Ground RETAINING WALL Interstate Highway 94 C Hennepin Coord:X=36623 Y=16328 Drill Machine 714 Drilling Latitude (North)=44 7'2.26" Longitude (West)=93 14'3.67" Hammer CME Automatic Calibrated Completed 6/1/ DEPTH This boring was taken by BRAUN under a consultant contract for Mn/DOT Elev. LABORATORY LOG & TEST RESULTS - SUBSURFACE EXPLORATION Lithology UNIQUE NUMBER 7381 Classification Drilling Operation SPT N6 REC MC RQD COH (psf) (ft) (pcf) ACL Core Breaks Soil Rock Other Tests Or Remarks Formation or Member Fine Sand w/ G, brn, moist, meddense NSR slpl Fine Sandy Loam w/ G, brn, moist, dense Fine Loamy Sand w/ G, brn, sat, Vdense 2/.6 /.3 slpl Fine Sandy Loam w/g, brn, sat, Vdense 2 17/.6 / Sand and Gravel, lt brn, sat, Vdense Bottom of Hole - 3.3'. Water measured at 24' while sampling and/or drilling Boring then grouted. 27/.6 /.4 Index Sheet Code 3. Soil Class:P. Martin Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

35 NOISE WALL Latitude (North)=44 7'2.64" UNIQUE NUMBER Trunk Highway/ 94 Hennepin Co. Coordinate: X=3668 Y= Longitude (West)=93 14'3.18" c CPT Truck (H) Hasselquist Ground UBC 199 FR /3/ Bottom of Hole 31.42,Refusal on rocks or boulders Index Sheet Code 3. C:\278141\Cone\F3G2C.DAT Soil Class: Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

36 BIT, " CONC, 9" slpl Sandy Loam w/ G, dk brn, moist Trunk Highway/ 29 Boring No. Ground RETAINING WALL Interstate Highway 94 C Hennepin Coord:X=36773 Y=1632 Drill Machine 714 Drilling Latitude (North)=44 7'2.23" Longitude (West)=93 14'28.8" Hammer CME Automatic Calibrated Completed 6/1/ DEPTH This boring was taken by BRAUN under a consultant contract for Mn/DOT Elev. LABORATORY LOG & TEST RESULTS - SUBSURFACE EXPLORATION Lithology UNIQUE NUMBER Classification Drilling Operation SPT N6 REC MC RQD COH (psf) (ft) (pcf) ACL Core Breaks Soil Rock Other Tests Or Remarks Formation or Member Hammer Efficiency = 83% Sand and Gravel, brn, moist, dense to meddense Sand w/ a little G, brn, moist, meddense 14 Sand w/ G, brn, moist, meddense slpl Fine Sandy Loam w/ G, brn, moist, Vdense pl Fine Sandy Loam w/ G and layers of Sand, brn, wet, hard to Vhard Sand and Gravel, yel-brn, sat, Vdense Bottom of Hole - 3.3'. No water encountered or measured during drilling Boring then grouted. 36/.6 /.4 Index Sheet Code 3. Soil Class:P. Martin Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

37 843.4 NOISE WALL Latitude (North)=44 7'2.6" UNIQUE NUMBER 817 Trunk Highway/ Hennepin Co. Coordinate: X=36838 Y= Longitude (West)=93 14'27.68" Ground UBC 199 FR C CPT Truck /13/ Bottom of Hole 2.34,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(19) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

38 BIT, 2 3/4" CONC, 9" Loamy Sand w/ G, brn, moist, meddense Trunk Highway/ RETAINING WALL Interstate Highway 94 C Fine Sand w/ a little G, brn, moist, meddense Boring No. Ground Hennepin Coord:X=3697 Y= Drill Machine 714 Drilling Latitude (North)=44 7'2." Longitude (West)=93 14'26.72" Hammer CME Automatic Calibrated Completed 6/1/ DEPTH This boring was taken by BRAUN under a consultant contract for Mn/DOT Elev. LABORATORY LOG & TEST RESULTS - SUBSURFACE EXPLORATION Lithology UNIQUE NUMBER Classification Drilling Operation SPT N6 REC MC RQD COH (psf) (ft) (pcf) ACL Core Breaks Soil Rock Other Tests Or Remarks Formation or Member Fine Sand w/ G, brn, moist, meddense Sand and Gravel, brn, moist, dense Fine Sand and Gravel, lt brn, moist, dense Fine Sand w/ G, brn, sat, Vdense slpl Fine Sandy Loam w/ G, brn, moist, Vdense 21/.6 / Bottom of Hole /4'. Water not observed while drilling. Boring backfilled with soil cuttings. /.3 Index Sheet Code 3. Soil Class:P. Martin Rock Class: Edit: Date: /13/16 G:\GINT\PROJECTS-CLOSE-OUT\ GPJ

39 84. NOISE WALL Latitude (North)=44 7'2.71" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=37291 Y=1633 Longitude (West)=93 14'21.38" Ground UBC 199 FR C CPT Truck 84. /11/ Bottom of Hole 2.7,Planned Index Sheet Code 3. G:\geotech\cptdata\th94\-Buhl Soil Class: (-11-16)\ Rock Class: Edit: Date: D (-11-16)\test( /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

40 839.4 NOISE WALL Latitude (North)=44 7'2.71" UNIQUE NUMBER 816 Trunk Highway/ Hennepin Co. Coordinate: X=37427 Y=1633 Longitude (West)=93 14'19.48" Ground UBC 199 FR C CPT Truck /14/ Bottom of Hole 18.9,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test() /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

41 838.8 NOISE WALL Latitude (North)=44 7'2.67" UNIQUE NUMBER 81 Trunk Highway/ Hennepin Co. Coordinate: X=37 Y=16331 Longitude (West)=93 14'17.77" Ground UBC 199 FR C CPT Truck /22/ Bottom of Hole 26.44,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(29) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

42 838.3 NOISE WALL Latitude (North)=44 7'2.67" UNIQUE NUMBER 814 Trunk Highway/ Hennepin Co. Coordinate: X=3767 Y=16331 Longitude (West)=93 14'16.4" Ground UBC 199 FR C1 394 CPT Truck /14/ Bottom of Hole 2.7,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(23) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

43 Noisewall 1 Summary of Subsurface Conditions Conditions Encountered Water Possible Impacts Dense undefined near surface. Mostly medium dense to dense sands to No water indicated, but perched layers may be Loose sand may tend to collapse. Water elevation may c14 termination near elev /2. Loose sand near elev. 831 vary. c13 c12 c11 Dense undefined near surface, generally medium dense to dense sands to refusal near elev. 8. Loose sand near elev Undefined near surface. Loose to medium dense to near 828, then very dense sands to termination near elev Generally loose to medium dense sands to near elev Very dense sand layers 826 to 833 and , then firm clay loam to termination near elev. 812 No water indicated, but perched layers may be No water indicated, but perched layers may be No water indicated, but perched layers may be Loose sand may tend to collapse. Water elevation may vary. Loose sand may tend to collapse. Water elevation may vary. Loose Sand may tend to collapse. Water elevation could vary Noisewall 3 Summary of Subsurface Conditions Conditions Encountered Water Possible Impacts Dense undefined near surface. Generally medium dense to dense sands to No water indicated, but perched layers may be Water elevation could vary c refusal near elev /2. Loose to medium dense to near 831, then very dense sands to refusal near elev. No water indicated, but perched layers may be Loose sand may tend to collapse. Water elevation may c9 8 1/2. vary. T Sand and Gravel to near elev. 819, then reworked clayey Shale near elev. 88, No water indicated, but perched layers may be Boring located in exit gore, below noise wall. () then Shale bedrock and Limestone bedrock below elev. 79. c6 Generally loose Sand to near elev. 828, then medium dense to dense sands to refusal near elev Very soft undefined near elev No water indicated, but perched layers may be Loose sand may tend to collapse. Water elevation may vary. Dense undefined near surface. Mostly layered Sandy Loam, Clay and Silt to near No water indicated, but perched layers may be Soils might be fill and could contain debris. elev. 8'm, then Clay with a few Silt layers to termination near elev /2. c2 Soft Clay near elev. 813 to 816.

44 838.1 NOISE WALL 1 Latitude (North)=44 7'2.38" UNIQUE NUMBER 813 Trunk Highway/ Hennepin Co. Coordinate: X=37772 Y= Longitude (West)=93 14'14.69" Ground UBC 199 FR C CPT Truck /13/ Bottom of Hole 2.8,Planned Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test() /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

45 838.2 NOISE WALL 1 Latitude (North)=44 7'2.43" UNIQUE NUMBER 812 Trunk Highway/ Hennepin Co. Coordinate: X=37844 Y= Longitude (West)=93 14'13.68" Ground UBC 199 FR C CPT Truck /13/ Bottom of Hole 18.97,Refusal on unknown layer Index Sheet Code 3. E:\ORIGINAL FILE 1\-Duhl Soil ( )\SP Class: Rock Class: Edit: Date: ( )\test(11) /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ

46 838.3 NOISE WALL 1 Latitude (North)=44 7'2.3" UNIQUE NUMBER Trunk Highway/ Hennepin Co. Coordinate: X=3796 Y= Longitude (West)=93 14'12.13" Ground UBC 199 FR C CPT Truck /6/ Bottom of Hole 22.31,Planned Index Sheet Code 3. G:\geotech\cptdata\th94\-Buhl Soil Class: (-11-16)\ Rock Class: Edit: Date: D (-11-16)\test( /13/16 G:\GINT\PROJECTS-ACTIVE\--NOISE WALL.GPJ