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Home My Public Portal AboutExhibits 1-11 r 1 r f '~ Oy) i R w J+ •' rn r 1= �i iy a f ti 7� W W C7 -� -u (7 m o � �' m�Sam x (D _ cr Q �. — • CDrn 0 x N -QL sD [\ r V 07 Q CD (D W I 3 n I 00 (D Q. n N O .,a CP mCD '4 m s� CD C7 m N cCD Qa Lo CD CD CD N :- N CD OG o O o N(01 CD V* o 7 CD Q a 4, -o �• S. m ro o h 0 CD CD I 04 CD 0 ( N Z ' O � �. "'S �.(A ? c N 1 X P. 3' MIN. MAX. SLOPE 1.6%_, EXISTING ROADWAY SURFACE O.. 4'BIT.OR —� 6-CONC. e TOP COURSE B'GRAVEL MIN. BINDER COURSE 1'-0" 12"GRAVEL DRIVEWAY SECTION PROVIDE 3' WIDTH AT BACK OF SIDEWALK WITH MAX. CROSS SLOPE OF 1.6% AND MAX. LONGITUDINAL SLOPE OF 87a 20' MAXIMUM _ ZONING OFFSETS ZONING DISTANCE DISTANCE WALL DISTRICT FROM STREET FROM LOT OF PRINCIPAL INTERSECTION LINE BUILDING RS,RO,RT 25 5 5 1 RO,RM 25 8 5 I CRO,CLO,CM 50 10 5 4 CRS,CS,CB,CN 10 NO REQUIREMENT 5 MAXIMUM DRIVEWAY GRADE = 12% i NOTE: DRIVEWAY PLAN-RESIDENTIAL NUMBER OF DRIVEWAYS PER LOT LINE IS LIMITED TO TWO. ZONING BY LAW SECTION 5.1.10.2 Town Of Lexilfgton ENGINEERING DIVISION DRAWN BY: P.IL I DATE:3/26/2011 SCALE:NONE C,:\7own\icwnL.rowings\C6nstr.UetaIIS\KCodL:etoil5.dwg. J/Lb/zw i:SJ:U4 Pm CD 00 CA) i 00 N CA ti h N W r Ll f W W I 61 1 W ' O s f -P T� VJ M� co m� V♦ -i W I y r qK W ., __ q, ' av CD 1 -- • Q. � e C +" �� ` - (D s rnk N C� ems-cr CD cn DAVID O . KNUTTUNEN , P. E . Exhibit-8 Sfruclural Engineer February 20, 2019 Mr. Kaveh Abdi 36 Hillcrest Cir Watertown, MA 02472 RE: 36 I-Iilhcrest Circle, Watertown Dear Mr. Abdi: As you requested, I visited your property at 36 Hillcrest Circle, on Monday, February 18, 2019, to observe conditions, and consult with you regarding structural implications of possibly back-Filling alongside of your house to create a driveway/parking area. The property at 36 Hillcrest Circle slopes very steeply down from front (street) to rear yard, such that the basement is not only, "walk-out" but the basement slab is actually about 18" above the rear yard. This means that the side yard which is being considered for parking has quite a steep slope. Filling this side yard to provide a more manageable slope for driving would require a long retaining wall along the property fine, and then across to meet the house, and would increase the height of soil along the entire side wall. The existing foundations and basement slab show a pattern of rather severe cracking that seem to indicate that the rear of the building has experienced foundation settlements due to subsidence of the underlying soils. The foundation wall cracking also "telegraphs" into the brick veneer, above (see attached Photos). The exact cause of this soil movement, and when it occurred, are not known; however, adding several feet of backfill alongside the house, by increasing the weight born by the underlying soils, could lead to increased settlements, and more damage to the house. Backfilling would also increase the horizontal soil pressure on the foundation wall, which is already damaged. Given the existing condition of the walls, it does not seem prudent to do anything that could worsen their condition, and I would not recommend backfilling alongside this house, at this time. I hope these observations have been useful to you in your planning. Please let me know if you have any further questions, or need any other structural engineering services. Very trul - ours, DAV►ID O KNUTT519im t� David O. Knuttunen, P E. # Attachments 24 BRIDGE ST ^ NEV TON, MASSAC:HUSETTS • 02458-1 t25 phone: (617)558-5853 • email: dok_eng@idokpc.com world wide web: http://dokpc.coni IIIIIIIIIIIIIIIIIIIDAVIDSON Exhibit-9 377 Somerville Ave 'ENGINEERING Somerville, MA 02143 ASSOCIATES, INC. 617-775-7250 February 20, 2019 Kaveh Abdi 36 Hillcrest Circle Watertown, MA 02472 RE: Site Inspection 36 Hillcrest Circle Watertown, MA 02472 Dear Kaveh, This letter summarizes my observations and recommendations based on an inspection that I performed at 36 Hillcrest Circle on February 20, 2019. The scope of my structural inspection was in regards to the driveway area. It is my understanding that the large slope of the driveway makes the driveway unsafe and useable for the residences at your home. This is exacerbated in winter conditions with snow and ice. Typically,the prescribed method of repair would be to regrade the soil to allow for a gentler and safer slope. There are however two key site constraints that would make regrading the driveway costly and challenging. The first concern is that the driveway is directly on the property line. Due to this issue, raising the grade would require a retaining wall be constructed along the entire length of the driveway. The rear of the driveway could either be contained by a new retaining wall, or the soil could slope back at a gentle slope. The second and more major concern is that driveway directly abuts the foundation wall. During my site visit,I observed significant settlement of the existing foundation.Foundation settlement occurs due to poor soils below the foundation.Regrading the existing driveway to a safer slope would require adding additional soil against the foundation wall.This weight of soil would cause additional settlement to the soil below the foundation, and thus significant damage to the existing foundation. To regrade the driveway in question,the existing foundation wall adjacent to the driveway would first need to be underpinned. The underpinning would need to be designed by a structural engineer. To provide a design, a geotechnical engineer would need to determine soil conditions. The following are approximate costs, based on previous retaining wall and underpinning jobs we have been involved in. 1. Regrading and adding new asphalt surface to driveway $5,000 2. Retaining wall along property line $4,000 3. Soil Investigation and Underpinning Design $8,000 4. Underpinning of foundation wall $15,000 Total $32,000 In conclusion, due to the current conditions of the site, regrading the driveway to a safe slope would have significant cost implications. � o �I"OF yAS S Regards, gcyG MICHAEL m 00 DAVIDSQN Michael Davidson, P.E. O.53313 8. '?' NAL ENG LOT 121A Exhibit- 1 0 Z 27 00$ LOT 122 9QQ� LOT 142 LOT 141 A 6,531t S.F. LOT 123 w p°ROH W �o ,� 0 2 STORY W ,z ro (13 v PROPOSED to�,v s 9 bk<loo 38 LOT 141 PARKING (1 SPACE) ri �-' z9 •o� God SEE SHEET 2 FOR DETAIL oJ'?o PROPOSED �T P NG HILLN (PLANTER TO BE REMO IAED) CIRCLE EXISTING BUILDING COVERAGE = 20.3% OWNER: KAVEH & KAMBIZ ABDI EXISTING IMPERVIOUS COVERAGE = 38.1 PROP. IMPERVIOUS COVERAGE = 40.2% PROPOSED PLOT PLAN #36-38 HILLCREST CIRCLE I HEREBY CERTIFY THAT THE BUILDING { IN LOCATED AS SHOWN. nt WATERTOWN, MA (MIDDLESEX COUNTY) , SCALE: 1"= 20' DATE: 11/21/2018 , r ROBER SURVEY Cb ORD E. ROBER, PLS ' DATE' " '- ` 'rd5 1072A MASSACHUSETTS AVENUE THIS PLAN MAY HAVE BEEN ALTERED IF ARLINGTON, MA 02476 (781) 648-5533 THE SIGNATURE IS NOT SIGNED IN BLUE. 5687PP3.DWG (1 of 2) Exhibit- 1 1 �?4 2 SroRY PROPOSED PA MNG 38 (' SPACE) .104. 9 g•bk 0 L_9 y , c fir•2 , PROPOSED 0 PARNNG (PLANTER TO BE REMOVED) EUSTING CURB TO BE BEA10VET—" HILLCREST OWNER: KAVEH & KAMBIZ ABDI CIRCLE -- DETAIL #36-38 HILLCREST CIRCLE I HEREBY CERTIFY THAT THE BUILDN 15;; IN << : =off' TERTOWN, MA LOCATED AS SHOWN. _ (MIDDLESEX COUNTY) SCALE: 1"= 10' DATE: 11/21/2018 0 10 20 30 ft � � ROBER SURVEY P ' ' 1072A MASSACHUSETTS AVENUE CUFF D E. ROBER, PLS DATE ARLINGTON, MA 02476 THIS PLAN MAY HAVE BEEN ALTERED IF (781) 648-5533 THE SIGNATURE IS NOT SIGNED IN BLUE. 5687PP3.DWO (2 OF 2)