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Home My WebLink AboutSUB201600206 Bond Reduction 2019-12-10Atlas ATLAS Construction Management Construction 455 2nd St SE Suite 201 Management Charlottesville, VA 22902 Document Transmittal TO: FROM: Ana Kilmer Tucker Loyd COMPANY: DATE: Albemarle County 1 /21 /2020 RE: TOTAL NO. OF PAGES INCLUDING COVER: RE: Dunlora Park — Binder and As-builts Ana, Please find attached a copy of the Dunlora Park Binder that was submitted on 12/18/19 as well as 4 full sets of As-builts. Sincerel , IiW e Tucker Loyd ATLAS Construction Management 434-249-9885 RECEIVED JAN 2 12020 COMMUNITY DEVELOPMENT DUNLORA PARK ROAD ASBUILTS DEC. 10, 2019 By® RIVERBEND DEVELOPMENT TABLE OF CONTENT I. Certification Letter 2. Soils Reports 3. CBR's and Pavement Design Worksheet 4. Stone and Asphalt Testing Inspections S. Concrete Testing Reports 6. Storm Sewer Video and Report 7. Subdivision Plat — record plat 8. Road Plan — Asbuilts 9. Easements/Utilities I. Certification Letter COLLINS December 15, 2019 Virginia Department of Transportation Charlottesville Residency Charlottesville, VA 22902 RE. Durloro Park —Partial Engineer's Certification _ _- ._- - ----_._.._..._.-_...__._...__..__.-.--...___.___. 200 GARRETT ST, SUITE K CHARLOTTESVILLE VA 22902 434.293.3719 PH 434.293.2813 Fx WW W.collins-enginearing.com Please allow this letter to serve as a partial Road Certification for a bond reduction for the Dunlora Park subdivision. The roadway certification includes Varick Street from Station 10+00 to station 15+71 and Marin Court from station 10+00 to station 11+27. The roadways have been graded per the plans, with the sub -base compacted and tested by F&R (the third party inspections and testing company). Soils reports and CBR's have been provided with this submission. The CBR's are higher than the CBR's used during the design; therefore, the road design for the (2) roadways is acceptable. The 21A stone base has been installed at a depth between S and 6 inches along Varick Street and Marin Court, per the design drawings. The base pavement has been placed; however, there are some areas in the base pavement that will need to be repaired and patched prior to the final top coat of asphalt being installed. The base asphalt has been installed between 2.5 inches and 3 inches, per the approved plans. The testing of the stone depth and the pavement depths are acceptable and have been provided to VDOT for acceptance. The top coat of asphalt has not yet been installed. The CG-6 curb and gutter has been installed along these portions of the roadways. The concrete sidewalks and CG- 12's have also been installed, however there are portions of the existing sidewalks in front of houses that are currently under construction that have not been installed. Approximately 75 percent of the concrete sidewalks have been installed. The sidewalk along Dunlora Drive and Rio Road will be installed with the Phase II construction. The power and cable utilities have been installed along the roadway and the sidewalks and CG-12 ramps are complete, with exception to the CG-12 on the south side of the intersection of Varick Street and Dunlora Drive. Collins Engineering inspected and tested the CG-12 ramps for ADA compliance. All ramps are within tolerance for ADA compliance. The storm sewer system along this portion of Varick Street and Marin Court has been completed, and the video camera of this system has been provided with this submission. All the storm sewer pipes within this section of the development are HDPE pipe. A storm sewer pipe analysis has been included with the submission, noting the pipes that need to be repaired prior to final acceptance. Please allow this letter to serve as partial road certification for the roadways within the Dunlora Park subdivision. The completed items on the roadways as noted in this report and in the submittal information have been completed in accordance with VDOT standards and specifications and in accordance with the approved road plans for this development. Sincely, �Ottll ns, PE 0 cli i CL k cm ƒ� Hof C,j Cm Z) ? 3 is R2&o Q? L N z ® = Oo 7r 2 ch �. '"oa 0 N 3. CRR's and Pavement Design Worksheet sWCE FROEHL6NG & ROBERTSON9 INC. Engineering* Environmental ® Geotechnical 6181 Rockfish Gap Turnpike 19 Crozet, Virginia 22932-33301 USA 1881 T 434.823.51541 F 434.823.4764 Ca83ffornia Bearing Ratan QAASHTO T 193) Client: Dunlora Investments LLC Record #: 71UO272 Project: Dunlora Park F&R Lain No.: 3487 Location: Station 12+00 Test Date: 18-Aug-17 Unsoaked CBR Soaked CBR 5-1 Compaction method: VTM -1; Surcharge weight -10 lbs Sampling Depth: 0 to 1.5 feet Compactive effort: 5 Layers with 45 blows per layer CBR @ 0.1 in. penetration: 14.5 Proctor Max. Dry Density (pcf): 1_10._4 Swell (%): 1.13% Proctor Opt. Moisture Content (%): _ _ 16.7 Dry Density Before Soak (pcf): 111.3 Liquid Limit: NP Moisture Content Before Soak (%): 16.7% Plasticity Index: - NP % Compaction Before Soak: 100.8% % Retained No. 4 Sieve 9.7 Dry Density After Soak (pcf): 110.0 % Passing No. 200 Sieve: ~ 49.5 Moisture Content After Soak, Top In. (%): 20.4% Visual Description: % Compaction After Soak: 99.7% Brown, silty SAND with littie gravel Resiliency Factor: 2.5 USCS Classification: 5M AASHTO Classification: Y A-4 {0} Tested By: _ `RI( Reviewed By: Eroehling and Robertson, ilnc. 4. Stone and Asphalt Testing Inspections 0 Asphalt Placement 1-24-18Asphalt Crozet Office 6181 Rockfish Gap Turnpike Crozet, VA 22932 Phone:434-823-5154 Fax: 434-823-4764 Client: Project: Dunlora Investments LLC 71 U0272 P.O. Box 1467 Dunlora Park Charlottesville, VA 22902 915 Dunlora Drive Charlottesville, VA 22901 Date: 01 /24/2018 Location: Site - Asphalt Pavement Category: Asphalt Location Details: Varick street and Marin Court Coverage: Asphalt Placement Air Temp. (deg. F): 48 Submitted By: Morton, Lori J Inspector Title: Technician Equipment Type/Quantity: Asphalt pavers, smooth drum roller and shovels Labor Type/Quantify: 12 workers Asphalt Contractor: S. L. Williamson Asphalt Supplier: S. L. Williamson Work Description: Observation and testing of base mix asphalt placement. Upon arrival checked 21A stone depth. Various locations checked along Varick Street and Marin Court; all met or exceeded the project requirement of 5in thickness. Tests Performed: Nuclear density testing Courses Placed: Base It Base Course Summary Mix ID Subbase/Surface Condition (Pre -Placement) Tack Coat Applied QuantityXRequiredRoller Pattern Placed(tons)BM2521A stone Mix ID Required Marshall Compaction (%) Qpcf)/Rice Value Marshail/Rice Provided By Samples)�Pe Taken ples med By �N-.f Samples BM25 91.5 2.633 Contractor No Determination: As Specified Page 1 of 2 J J J J J J t C g � C � t g 0 � r r a Cl) m m �� vo c� co co c m m N N x > ; Y N r N N C N O 6 C _ O _ o3P'�o Lp �np n2 ino `qo v'T no sro o� m rn cn rn ffi m rn rn m m rn av CDco m` u o av U 0 tc Y Y in U co m U Sm4 U m Q� m m m V J rn � s � r o < m E > x g v d m m m m y m a m m m m N m c=p a� a� _oar CL n, m a� m n� c r S�y �> �> m> m> m> N> x m � tn'> m> O Co QI C rn U o a U.- C N N U� - in In in U v N CV N N N fV N CV C /IAA vI 0 0 0 0 0 A� dn N 07(1 N N N N gi cli m m m m m m m m .� N � y¢ C w N O C V d® t N m y 0 m m m m m m m m O � N m O cn f!7 N U U c U) C fn c Vl a� r U U U fQ C N C U CYI «. U wo e a. lC Rf> t O yam + m c N . c w m y N c pOp Ca O- � Q¢ a Q m. m ¢ T Q E J¢ r ID E m m O tlJ CL d(n n fn (nd rn (n2m (na CO (n d Cn 030.0) f�JdCn 9 m��Gppi co co co 00 O N N N N 0, Nj mt " ciroba I Y O X Z Or � 1 O N d CL a S. Concrete Testing Reports •wOt Ml,MB i�OBCRtBON, INC. �MiMVSM1li�s5Yt1fU Crozet Office 6181 RockAsh Gap Turnpike Concrete Placement Client: Project: 8-17-17 Concrete Crozet, VA 22932 Dunlora Investrnents LLC 71U0272 Phone: 434-823-5154 P.O. Box 1467 Dunlora Park Fax: 434-823-4764 Charlottesville, VA 22902 915 Dunlora Drive Charlottesville, VA 22901 Date: 08117/2017 Location: Site - Curb & Cutter Category: Concrete Location Details: Varick St (north side) from STA 15+00 through STA 15+71 Coverage: Concrete Placement Tom: Observation Frequency: Periodic Weather: Sunny Wind (mph): AirTemp.(deg- F): 90 Personnel: Butler, Jason , Senior Technician Description of Work Completed Work Performed: The F&R representative arrived onsite, as requested, to observe the placement of 7 cubic yards of 3000psi concrete for the Curb and Gutter Varick on St (north side) from STA 15+00 through STA 15+71. A sample of concrete was obtained, tested and 5 cylinders were cast for compressive strength testing in our laboratory. Concrete placement observed on this date did appear to be in compliance with the construction drawings and specifications. Tests Performed: Slump, Air, Temperature Cubic Yards Placed: 7.00 Concrete Summary Prepared: Yes Determination: As Specified Discrepancy Recorded?: No Page 1 of 2 � { � } � x k ) \ate \ ) �J 2 �a ƒ 6¥ �> �222 w_�=«a. � �- \k§/ / 0130 Q3G§ . `§ LU E E J$ a 17 j IL �&RConcrete Sample Pickup 8-18-17 CYL PU °`I� ASTM C31 Report Date: 8/31/2017 Crozet Office 6181 Rockfish Gap Turnpike Crozet, VA 22932 Phone: 434-823-5154 Fax: 434-8234764 Client: Project: Dunlora Investments LLC 71U0272 P.O. Box 1467 Dunlora Park Charlottesville, VA 22902 915 Dunlors Drive Charlottesville, VA 22901 Date: 08/18/2017 Location: Jobsite Category: Concrete Location Details: jobsite Coverage: Sample Pickup Type- Sample Retrieval (Only) Frequency: Weather: overcast Air Temperature (deg. F): 84 Personnel: Butler. Jason Description of Work Completed Work Performed: On site to pick up cylinders. Number of Sets Collected: 1 Condition of Specimens: Found as Cast Initial Curing: Exposed Min/MaxTemp. Recorded: No Determination: As Specified Discrepancy Recorded?: No Page 1 of 1 MR Crozet Office 6181 Rockfish Gap Turnpike Crozet, VA 22932 Phone:434-623-5154 Fax: 434-823-4764 Concrete Compressive Strength CTR No 1 Test Method: ASTM C 39 Report Data: 9/15/2017 Sample: 141256 CBient: Project: Dunlora Investments LLC 71U0272 P.O. Box 1467 Dunlora Park Charlottesville, VA 22902 915 Dunlora Drive Charlottesville, VA 22901 Testing Lab: Fro Ming & Robertson Inc. - 71, 6181 Rockfish Gal Specimen Test Test Average Cylina Number A Days Date Cure etas Diameter In' 1-1 7 08/24/17 1 /6 4.00 1-2 28 09/14/17 1 /27 q.00 1-3 28 09/14/17 1 / 27 4.00 1-4 28 09/14/17 1 /27 4.Q0 Test Age Average Strengths (psi): 7 Day - 3980, 28 Day - 5700 Break Remarks Lab Test Results i Turnpike, Crozet, VA, 22932 er ICylinder Max Load Area (W)_ Ibs) 12.57 50,000 12.57 74,000 12.57 71,500 12.57 69.500 1. Specimens cast in general accordance with ASTM C31 by F&R Personnel unless otherwise noted. arengthftFracturereak Capl psimark Mail 3,980 N 5,890 N 5,690N 5,530 N —_-- Capping Methods Page 1 of 1 COLLONS December 11, 2018 Virginia Department of Transportation Charlottesville Residency Charlottesville, VA 22902 Attn: Joel Kauppila RE: Dunlara Parks st®rm sewer analysis 200 GARRETT ST, SUITE K CHARLOTTESVILLE VA 22902 434.293.3719 PH 434.293.2813 FX www.collins-engineering.com The video camera analysis for the storm sewer system within the Dunlora Parlk project has been has been completed, and the report is system is attached to this asbu ilt submission. All the storm sewer pipes within the development are HDPE pipe, with exception of the concrete culvert along Dunlora Drive. These pipes have been cleaned out and flushed prior to the camera inspection of the pipes. All piping was found satisfactory, with the following exceptions: 1. Storm Pipe 12 to 10 —Joint separations are within the allowable tolerance and the storm pipe is acceptable. The concrete deposits at the end of the pipe in structure 10 should be removed. 2. Storm Pipe 10 to 8 — Joint separations are within the allowable tolerance and the storm pipe is acceptable. There is a small deflection in the pipe near structure 8, but this is also within tolerance and is acceptable. 3. Storm Pipe 16 to 14 — Joint separations are within the allowable tolerance and the storm pipe is acceptable. Minimal deflections in the pipe were observed, but these deflections are also within tolerance and are acceptable. 4. Storm Pipe 14 to 8-- Joint separations are within the allowable tolerance and the storm pipe is acceptable. Minimal deflections in the pipe were observed, but these deflections are also within tolerance and are acceptable. S. Storm Pipe 8 to 6 —Joint separations are within the allowable tolerance. Pipe deformation and wipe crack at station 3.26 needs to be repaired Crack and separation at failure is visible with soil visible through the crack in the pipe. 6. Storm Pipe 6 to 4 —Joint separations are within the allowable tolerance and the storm pipe is acceptable. Minimal deflections in the pipe were observed, but these deflections are also within tolerance and are acceptable. 7. Storm Pipe 4 to 2 — Joint separations are within the allowable tolerance and the storm pipe is acceptable. Minimal deflections in the pipe were observed, but these deflections are also within tolerance and are acceptable. 8. Storm Pipe 2 to 1B —Joint separations are within the allowable tolerance and the storm pipe is acceptable. Minimal deflections in the pipe were observed, but these deflections are also within tolerance and are acceptable. 9. Storm Pipe 1B to Out — Storm Pipe is acceptable 10. Concrete Culvert- Concrete pipe joints are acceptable and overall, the culvert pipe is acceptable. Contractor should parge surface spalling at pipe joint 29' from the invert in of the pipe. -- a� IVA -5vrr^ Report Link Project Date Location .- Manhole Pipe Size ID Numbers Leiigth View 21740 Session: Dunlora 3/13/2018 08:15 Varick St 11 STR-12 To 34 65.9 1 Park STR-10 MB View 21740 Session: Dunlora 3/13/2018 08:55 Varick St g STR-10 To 116 93.5 2 Park STR-8 MB View 21740 Session: Dunlora 3/13/2018 09:46 � Marin Ct 15 STR-16 T® 33.7 41.8 3 Park STR-14 MB View 21740 Session: Dunlore 3/13/2018 09:56 Varick St f 13 STR-14 To 59.1 56,8 4 Park STR-8 MB View 21740 Session: Dunlora 3/13/2018 10:16 Varick St 7 STR-8 To 135.2 110 5 Park STR-6 MB View 21740 -- Session: Dunlora 3/13/2018 10:47 Varick St 5 STR-6 To 33.5 36.0 6 Park STR-4 MB View 21740 Session: Dunlora 3/13/2018 10:55 Varick St 3 STR-4 To 108.3 175.5 7 Park STR-2 MB View 21740 Session: Dunlora 3/13/2018 11:15 Varick St 1 STR-2 To 120.1 80.1 8 Park STR-1 B MB View 21740 Session: Dunlora 3/13l2018 11:58 Varick St 21 INV. IN To 81 82.1 9 Park INV. OUT MB View 21740 Session: Dunlora 3/13/2018 12:17 Varick St 1A STR-1B To 37 61.4 10 Park f STD-EW-1 MB Total, 757.9 703 MI B