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Home My WebLink AboutRe: retaining wall r�... ..._n.��}Y .ww� � .Wv.Y....�....y�.��.r.. � ��..�.,�� . �, ' o R R � � SCHIMNOWSKI fNGINffRS CRITERIUM-SCHIMNOWSKI ENGINEERS 161 DUNBAR WAY MAHTOMEDI,MN 55115 TEL 651779-7700 P� FAX 651 779-7114 O �O www.criterium-schimnowski.com July 14, 2015 0�� Mike Kling R�� , Landscapes Unlimited p�N a/' �`O 659 Bielenberg Drive CyECKED 8 �� (�� Woodbury, MN 55125 �� pqT� �� RE: Boulder Retaining Wall Typical Section 100 Kintyre Lane Orono, Minnesota Project No. 15-1774 Dear Mr. Judd, This letter is being sent to discuss our typical section for the proposed boulder retaining walls at the 100 Kintyre Lane project in Orono, Minnesota. This design is based on site layout information provided by you on July 9, 2015. The primary boulder retaining wall will be located along the driveway and around to the back of the house. The wall will vary in exposed height from about 11 feet to 1 foot. A minimum wall batter/setback of 18° (�1 inches/vertical foot) should be used. Slopes as noted below will be present at the top and bottom of the wall. No groundwater or other surcharge loads have been designed for the wall. If site conditions vary from what is shown on the Typical Section, please call me to discuss other options. Refer to industry standard practice references for installation information, specifications, and details. - Boulders shall be placed to avoid continuous joint planes in vertical directions. - Each stone shall bear on two or more rocks below it with good flat-to-flat contact. - Compact any structural fill place behind the drainage zone to 95% standard proctor. � - Install woven landscape fabric behind the stone to limit soil migration through the wall face. - Drainage stone shall consist of clean 3/4" to 1.5"crushed stone The attached typical section should be referenced for the appropriate wall section height. Special note should be made of the wall embedment depth and the geosynthetic fabric (geogrid) length, if required, as measured from the front face of the wall. Refer to retaining wall industry standard specs for installation information and details. The design of the wall system assumes the following: - Soil conditions: Sandy SilUClay, friction angle = 32.0 degrees, unit weight of 120.0 Ib/ft3 - Allowable soil bearing capacity = 3,000 psf - No external surcharge loading behind walls - Slope at bottom of wall = 10:1; Slope at top = 10:1 LICENSED PROFESSIONAL ENGINEERS HOME&BUILDING INSPECTIONS STRUCTURAL EVALUATIONS ASSOCIATION RESERVE/TRANSITION STUDIES w " . RESIDENTIAL/COMMERCIAL / � RETAINING WALL DESIGN&EVALUATIONS J � � L� t�S'��"�„*�. , 100 Kintyre Lane, Orono, Minnesota � July 14, 2015 , Page 2 of 2 - Minimum embedment depth = 12" - Boulder Type: 12"-54" Direct concentrated surface drainage away from the walls. The walt design was performed using the design guidelines presented in the third edition of the"Design Manual for Segmental Retaining Walls" (DMSRW) published by NCMA in 2009. If soil conditions, proposed wall layouts, or other design parameters vary from that assumed, a revised analysis may be needed. Please call me if you have any questions or need more information. Thank you. Sincerely, _.-� � 1 --�-- Paul Schimnowski, PE DESIGN PARAMETERS AND PROVISIONS 1. REFER TO BOULDER RETAINING WALL INDUSTRY STANDARD SPECIFICATIONS. 2. SEE PRODUCT MANUFACTURER INSTALLATION RECOMMENDATIONS FOR CONSTRUCTION SEQUENCE AND INSTALLATION NOTES. 3. NO PRODUCT/MATERIAL SUBSTITUTIONS WILL BE ALLOWED WITHOUT PRIOR WRITTEN PERMISSION OF CRITERIUM-SCHIMNOWSKI ENGINEERS 4.OWNER OR OWNER'S REPRESENTATIVE IS RESPONSIBLE FOR ENSURING THE CONDITIONS STATED HEREIN ARE ACCURATE PRIOR TO AND DURING CONSTRUCTION. NOTIFY CRITERIUM IN WRITING OF ANY DISCREPANCIES OR CHANGES TO THE CONDITIONS SHOWN ON THESE DOCUMENTS. 5. REFER TO WALL ELEVATION NOTES FOR WALL SURCHARGE LOADINGS AND SLOPES AT TOP AND BOTTOM OF WALL(S). REFER TO WALL CALCULATIONS FOR BEARING CAPACITY REQUIREMENTS. 6. FINAL SITE GRADES AND ROOF DRAINS SHALL DIRECT RUNOFF AWAY FROM ANY RETAINING WALLS. 7. CRITERIUM ASSUMES NO LIABILITY FOR INTERPRETATION OF SUBSURFACE CONDITIONS, SUITABILITY OF SOIL DESIGN PARAMETERS AND INTERPRETATIONS OF SUBSURFACE GROUNDWATER CONDITIONS. 8.THE OWNER OR OWNER'S REPRESENTATIVE IS RESPONSIBLE FOR CONTACTING THE WALL DESIGN ENGINEER TO SCHEDULE A SITE VISIT PRIOR TO THE START OF BLOCK PLACEMENT. 9.THE WALL DESIGN WAS PERFORMED USING DESIGN GUIDELINES PRESENTED IN THE THIRD EDITION OF THE"DESIGN MANUAL FOR SEGMENTAL RETAINING WALLS"(DMSRW). PUBLISHED BY NCMA IN 2009. 10.THE DESIGN OF THIS RETAINING WALL WAS BASED UPON INFORMATION NOTED ON THE KEY PLAN. 11.THE INFORMATION PROVIDED WITHIN THESE DOCUMENTS IS FOR THE STRUCTURAL DESIGN OF THE PROPOSED WALL(S)ONLY. THE REQUIREMENTS FOR AND/OR WORK RELATED TO HANDRAILS, GUARDRAILS, OR OTHER LIFE/SAFETY ISSUES ARE EXCLUDED FROM THESE DOCUMENTS AND ARE TO BE PROVIDED BY OTHERS. 12. RESPONSIBILITY FOR GLOBAVSLOPE STABILITY RESTS WITH THE SITE CIVIL OR GEOTECHNICAL ENGINEER. CRITERIUM-SCHIMNOWSKI ENGINEERS TEL 651 779-7700 SOIL VALUES USED IN THE . DESIGN OF THIS PROJECT FRICTION ANGLE UNR WEIGHT NPE OF SOIL (DEGREES) (Ib/ft"3) , REINFORCED BACKFILL 30 120 RETAINED BACKFILL 30 120 FOUNDATION SOIL 30 �2o SCHEDULE ❑F REQUIRED REQUIRED BEARING CAPACITY = 3000 PSF NUMBER OF BOULDER COURSES WILL VARY AS NEEDED B�ULDER SIZES CROSS SECTION DESIGN BASED ON INFORMATION LISTED IN COVER EXPOSED WALL BOULDER DEPTH, LEffER. 18 TO 23 DEGREE HEIGHT MIN, SETBACK, TYP. IMPERVIOUS FILL 4� 28' 12" DEEP 5' 32' TOP BOULDERS, IYP. (12" TO 18" BOULDERS 6' 36' ALLOWED FOR FINAL GRADE ��j �j` ' '- ADJUSTMENTS) � �/��j��j\\��.��j�` 8' 42' /\\//\j \�\� r\��; 9� 44� MID-LEVEL BOULDERS, NP. �\�,�\�� 10' 48' 12' S4' SEE BOULDER SIZE SCHEDUIE FOR MORE INFORMATION VARIES BASE BOULDERS WALL BACKFILL COMPACTED 95� OF MAXIMUM STANDARD PROCTOR HEAVY WOVEN GEOTEXTILE DENSfTY BIXJLDER FILTER FABRIC DEPTH BEHIND BOULDERS WALL EMBEDMENT = 12' MIN, .. ' •� p-'.` .a.. �.. ' i�\1tt1tl11t1/�/ UNDISTURBED �I I( I I ' . I I I—I I I=s 4" DIA. DRAIN PIPE `�{t ��J�M �/ SOIL � OUTLET O END OF WALL �� ti 11 �' GRANULAR LEVELING PAD O R O 4 0' C E N T E R S M A X `� � ` �j MIN. 6" THICK ~ SE .• "" (OPTIONAL) REQUIRED BEARING CAPACIN = 3000 PSF _ µ � �w _ ENAHYE�R ;.�r� = � �Oi2� • * �+ � � i�l��. � �r s TYPICAL SECTION — BOULDER RETAtNING WALL (HEIGHT VARIES) ��''%''�'a�'"�°>�`'''� SCALE: NONE `��lfilNll1441'�< Designed By� PROJECT NAME/ 100 KINTYRE LANE / ❑RONO, MINNESOTA Date� PDS L❑CATION� 7/14/2015 Checked By: CLIENT: LANDSCAPES UNLIMTED Pro,ject No� PDS CRITERIUM-SCHIMNOWSKI ENGWf::I::RS 659 BIELENBERG DRIVE 15-1774 161 DLJNBAR WAY PHONE:651.779.7700 Scale� MAHTOMEDI,Mrr ssns FAX:651.779.7114 W'OODBURY, MN 55125 Drawing NaMe� AS N�TED pschimno@criterium-schimnowski.com j'l1C)NE: 61�'-5�)K-1045 11' B❑ULDER WALL SECTI❑ �� 1� �� 1�� t�� 1 �V ��°�� 11V ��1 a / � - d n b r ' ' � e� Sto e o�l e u�alls 5cale� 1''=1�' � � OPY �RONO � , � � � o / � Tcp oF udl � \ � 6-o�nge dra � C o-�a-«�, � a r�-.__��i � � \ 0 0 0 0 0 0 � � aoc�„�r�i ° ° ��._ a-5 r,e«��,� � �„�wdi U 0 0 �o 0 O �� O� �� O Top oF udl n � � � — � r0 �J _ � 6 t � ^_� --6-7 F exoosed hei�nt I(7\ �/ i � � � � � � � — / � tdn oF udl O d'ange drection � �� - � � �U B-9 f�exposed helgnt L�� rJ � � � �� J Top oF wdl � �r,� � � 6occa„of uid� � .,-,:�exGxe�neio��. � ^ � ✓ �> ��j�CJ�� / �/ ��/ �� Tap oF udl / d'tirr�ge drecfion / / ge / Bottam of udl (� ; � �� -�j � �--� 6-7 rl exposea he�oht ��O G C�� .,% �� / Bottom oF udl � '/ / �`��'0� �� ,�� / 4-5 ft eaposed F�eigF�i �� Tcp of wdl / / . Christine Mattson From: Adam Edwards Sent: Friday, July 17, 2015 1:11 PM To: Melanie Curtis Cc: Christine Mattson Subject: RE: 100 Kintyre wall application &engineering Melanie, Couple comments. 1. The wall design calls for 3000 psf required bearing capacity. Need confirmation from builders engineer that the site's can meet this. 2. The design calls for the wall design engineer to conduct a site visit prior to block placement. The results of that visit/inspection should be provided as part of the as built submission. Adam From: Melanie Curtis Sent:Wednesday,July 15, 2015 3:25 PM To:Adam Edwards Cc:Christine Mattson Subject: FW: 100 Kintyre wall application&engineering Adam Please see the attached regarding #2015-00513 Melanie Curtis �952.249.4627 �mcurtis@ci.orono.mn.us From: mike@landscapesunlimitedmn.com [mailto:mikeCa�landscapesunlimitedmn.com] Sent: Wednesday,July 15, 2015 1:36 PM To: Ethan Kindseth; Melanie Curtis; Roger Peitso Subject: 100 Kintyre wall application &engineering Hello, Here is some info on the retaining wall application for walls at 100 Kintyre. Do you need anything else? The wall plan is scaled to fit on an 11"x17" sheet. Mi�Ce K�in� Lanc�scaPe Desi�n L�t�9DSCA,FES lJNLCMITEL� i"�'i LANF}SGAPE DESIGN$e thiSTAL1.AT101Y 659 BIELENBERG DR. 1 . Christine Mattson From: Christine Mattson Sent: Monday, July 20, 2015 8:53 AM To: 'mike@landscapesunlimitedmn.com' Cc: 'Ethan Kindseth'; 'criteriummn@gmail.com' Subject: 100 Kintyre Lane wall application &engineering Mike, Our engineer has reviewed the plans submitted and has a couple of comments: 1. The wall design calls for 3000 psf required bearing capacity. Need confirmation from builders engineer that the site's can meet this. 2. The design calls for the wall design engineer to conduct a site visit prior to block placement. The copy of the results of that visit/inspection should be provided to the City. Please have your engineer address his comments. Christine Mattson Planning Assistant City of Orono 2750 Kelley Parkway � Orono � MN � 55356(physical addressJ PO Box 66 � Crystal Bay � MN � 55323-0066 (mailing addressJ '�' 952.249.4620 � 8 952.249.4616 � cmattson@ci.orono.mn.us J � www.ci.orono.mn.us Summer Office Hours: (Monday, May 18 through Friday,August 28,2015) Monday-Thursday: 7:30 am to 5 pm Friday: 7:30 am to 1130 am OUR OFFICE WILL BE CLOSED: Monday,September 7, 2015 1 � , STRUCTURE INFORMATION: 1.Structure Dimensions 1.Structute Dimensions(cartinued) 2.Type of Gonstruction a. Length(ft.)= �� Number of bedrooms=_�,� �]Wood/Frame b.Width(ft.)= /� Number of garage stalls: ❑Masonry Areas in sauare feet Attached=_,� ❑Metai c. Basement= �L Detached= ❑ Pole Bldg. ❑ ICF d. 1 B'Story = �_ e 2nd StOry= � ❑On-site Prefab f. %z Story = (�r 'L 9 ❑ Off-site Prefab ❑Other(please specify): g.Total Area= _��/"� REQUIRED SUBMITTALS: AI! of the information must be submitted in order for your application to be processed: Not Enclosed Iicabls 0 ❑ Buildin Permit Escrow A reement and Fees ❑ � Plan Review Fee ❑ � Com leted lic�tion Form ❑ ❑ Pro c�sed Buildin Plans—2 full size sets,to scale and 1 reduoed 11 x 77 or 8'/z x 11 set ❑ O Minnesota State Ene Code Ca�ulations and Mechanical Code Re uirements ❑ ❑ Surve —2 full size,to scale meetin ALL surve r uiremeMs ❑ ❑ Hardcover Calculations 0 ❑ Se tic S tem Certification ❑ 0 Minnehaha Creek Watershed Distriet(MCWD)Permit or Documentation from MCWD statin no ermi#is uired ❑ O Landsca e Walls and/or Retainin Wall Plans ❑ ❑ Stormwater Pollution Preverrtion Plan SWPPP ❑ O Access Permit ❑ ❑ Data Privacy Advisory Form APPLICANT/OVUNER ACKNOWLEDGEMENT: • Agrees to provide all information fequired or requested by the Building Department; • Agrees to pay the City of Orono for engineering consultant review casts in excess of 5500; • Certifies that the information supplied is true and correct to the best of hisR�er knowledge. The applicant recognizes that they are solely responsible for submitting a complete application being aware that upon failure to do so,the staff has na atternatnre but to reject it until it is complete; • Acknowledges the Escrqw Agreement is completed and signed; � Understands some or all of the information that you are asked to provide on this applicaUon is ctassified by State law as either private or confidential. Private data is information which generally cannot be given tn the public but can be given to the subjed of the data. Confidential data is information which generally cannot be given to either the public or the subject of the data. Our purpose and irrtended use of this information is to annually update our rec�ords and records of other govemmeAtal agencies required by law. If you re#use to supply the information,the appliqtion may not be issued. � c��$'�:i11��6Hs�`��f��'�Da'��1,�. � � �� ry � "`�' r3�- �e � = r ,r.� ,. x. . � �, , ��'�I�{�� '� � � I�/�� ,,"� f 3".' ,h �: .��_ .._. .� � . � . „ .r Y�.�..��#.�,. .. .. . .: . ,. .,...,..,� .....,w . ..._.. :.: . J'_....._.-_ ..�. .. . . . ..,,.,....,:._ _ ..,......2 Ap IicanYs Si nature: ~ ' � D ��/S— /,,,� N 9 ate: Owner's Signature: Date: Last Updated: January 2095