HomeMy WebLinkAboutWPO201000068 Plan - Submittal (First) 2015-11-11"VICINITY
SCALE, 1 m 2000'
RAC TES:
LOCATION RIO MAGISTERIAL DISTRICT, ALBEMARLE COUNTY, VIRGINIA
OWNER PER ALBEMARLE
COUNTY RECORDS TMP 03200-00-00-05000 (PROPOSED SWM FACILITY #1)
ROUTE 29 LLC
PO BOX 5548
CHARLOTTESVILLE,VA 22905
DEVELOPER MR. WENDELL WOOD
2315 SEMINOLE LANE
CHARLOTTESVILLE,VA 22901
ENGINEER COLLINS ENGINEERING
200 GARRETT STREET, SUITE K
CHARLOTTESVILLE,VA 22902
CONTACT; MR, SCOTT COLLINS
434.293.3719
TAX PARCEL # PART OF TMP 03200-00-00-05000
ACREAGE 42.43± ac.
TONING NEIGHBORHOOD MODEL DISTRICT
USE SWM FACILITY APPROVED TO TREAT FUTURE USE/CREDIT.
PROPOSED MAXIMUM LOT COVERAGE (IMPERVIOUS COVER)- NO IMPERVIOUS AREAS ARE PROPOSED WITH THIS PLAN, HOWEVER THE SWM FACILITY IS
DESIGNED 8, APPROVED FOR FUTURE IMPERVIOUS AREAS/CREDIT.
TOPOGRAPHY%SURVEY® TOPOGRAPHY& SURVEY CREATED BY LINCOLN SURVEYING ON OCTOBER 23, 2015. INFORMATION WAS SUPPORTED BY A FIELD VISIT
CONDUCTED IN OCTOBER 2015 BY UNITED LAND CORP.
BENCHMARK- EXISTING TOP OF BOX ON TOWN CENTER DRIVE, ELEVATION 529.52', SHOWN ON THIS SHEET,
DATUM- ELEVATIONS BASED ON NAD 03 DATUM.
FLOODPLAIN INFORMATION- THIS PROPERTY IS LOCATED IN ZONE 'X' AS SHOWN ON THE FLOOD INSURANCE RATE MAP, MAP NUMBER 51003C®140D,
EFFECTIVE DATE FEBRUARY 4, 2005.
STREAM BUFFERS- A 100' WPO STREAM BUFFER EXISTS ON THE SUBJECT PARCEL PER ALBEMARLE COUNTY GIs,
WATERSHED- THIS SITE DRAINS TO THE POWELL CREEK WATERSHED.
ACCESS- TOWN CENTER DRIVE SHALL SERVE AS ACCESS TO THE SWM FACILITY.
LANDSCAPING IS PROPOSED FOR THE AQUATIC BENCH & MITIGATION PLAN
CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO
STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM THAT SHOWN ON THE PLANS, IF THERE APPEARS TO
BE A CONFLICT, AND UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLANS,
COLLINS ENGINEERING SHALL NOT HAVE AUTHORITY OVER CONTRACTORS WORK, SAFETY PRECAUTIONS SCHEDULES OR COMPLIANCE WITH LAWS AND REGULATIONS. W�P SHAL L NOT
ASSUME RESPONSIBILITY FOR ANY CONSTRUCTION BEGUN PRIOR TO PLAN APPROVAL.
THIS ASBUILT SURVEY OF THE HIOLLYMEADE TOWN (.;TENTER SVVM Fr-
ALBEMARLE COUNTY, VIRGINIA WAS COMPLETED UNDER THE
DIRECT AND RESPONSIBLE CHARGE OF CHRI TOPHER B. BEAN FPICJM
AN ACTUAL GROUND SURVEY MADE UNDER MY SUPERVISION;
THAT THE IMAGERY AND/OIL ORIGINAL DATA WA- OBTAINED ON
OCTOBER 23, 2015: AND THAT THIS PLAT, MAP, OR DIGITAL
GEOSPATI.AL DATA INCLUDINIC3 METADATA MEETS MINIMUM A(;GURACY
STANDARDS UNLESS CITHERVVISE NOTED,
I HEI EL3''Y ClE} TIFY THAT THIS TC}POGRAPHIC MAP, TO THE
BEST OF MY PROFESSIONAL KNO ILEDC-iE AND BELIEF, IS
C C)HREC::T AND C(DMPLIES WITH THE MINIMUM PROCEDURES
AND STANDARDS EST.£ HLISHED BY THE y11-IUNIA STATE
BOARD `)F ARCHITECTS, PROFESSIONAL ENGINEERS, LAND
SURVEYORS, CERTIFIED LAND'3CJAPE ARCHITECTS AND
INTERIOR DESICiNERS, I ALSO CERTIFY THAT THE BOUNDARY
Si91f7WN HEREON IS BASED ON A CURRENT FIELD 7 URVEY,
ELEVATION
VOLUME IGFI
AREA ISF)
515.6
1,516
1,740
3,637
2,5C35
17.5
6,807
4,055
18.6
12,647
7,680
619.5
211.975
11j37
620.0
34,139
13,692
215
4DIU5 3
16,126
622.5
69,479
21,073
623.5
9119,30
23,101
624v5
1116,656
24,923
o
144,007
27,400
526�6
114,728
30,516
CQ00"
iy
Q B KMI P CIRCLE
f E
NOTES
1. THIS PLAN IS IN ACCORDANCE WITH ALBEMARLE COUNTY CODE SECTION 17-422.
2. THE DETAILED ASBUILT SURVEY PERFORMED BY LINCOLN SURVEYING & THE SUPPLEMENTAL
FIELD MEASUREMENTS PROVIDED BY UNITED LAND CORP. SHOW AN ASBUILT PLAN IN
GENERAL CONFORMANCE WITH THE APPROVED PLAN,
3. A DETAILED LASER SURVEY OF THE POND WAS PERFORMED & VOLUMES WERE GENERATED
FOR A HIGH LEVEL OF ACCURACY.
4. THE ATTACHED ROUTING CALCULATIONS OF THE FACILITY REFLECT ASBUILT CONDITIONS OF
THE POND AND ITS CONTROL STRUCTURES, AND SIMULATE THE PREVIOUSLY APPROVED
DESIGN STORM EVENTS, OUTFLOWS AND PEAK WATER SURFACE ELEVATIONS FOR THE
ASBUILT SCENARIO ARE GENERALLY CONSISTENT WITH THE APPROVED PLANS AND ARE
SUMMARIZED BELOW
Aprpooved Future Development Approved Approved Approved Approve
Design Watershed 1-yr Outflow (cfs) 2-yr Outflow (cfs) 10-yr WSE (ft.) 100-yr WSE (ft.)
CN Area Tc
0.67 1.71 524.27 524.69
31.7 12.94 ac, 0.25 hrs.
Approved Maximum Outflows for Asbuilt Asbuilt Aslbuilt Asbuilt
Channel Protection & MS-19 1-yr Outflow (cfs) 2-yr Outflow (cfs) 10-yr WSE (ft.) 100-yr WSE (ft.)
1-Yr (cfs) 2-yr (cfs) 0.66 1.90 524.79 525.18
0.67 4.52
Note:
The facility was constructed approximately 6" higher than previously
analyzied & a rein. 1' of freeboard is maintained in the 100-yr design
storm. Asbuilt survey top of darn=526.5'
So BELOW IS A SUMMARY OF THE FACILITY'S DESIGN ELEVATIONS, AREAS & VOLUMES. THE
ASBUILT SUMMARY PERFORMED BY LINCOLN SURVEYING, SHOWN ON THIS SHEET, IS IN
GENERAL ACCORDANCE WITH THE DESIGN VALUES.
Elevation
(ft)
Facility's
Design Area
Contours (sf)
Volume
(cf)
515
526
0
516
2,151
1,259
517
5,223
4,352
513
3,233
11,524
519
10,354
20,797
520
13,177
32,534
521
19,214
48,162
522
21,493
67,993
523
23,703
90,532
524
25,339
115,345
525
27,775
142,146
526
30,136
171,094
LIMITS OF PROPERTY
(TYP. )
5
a
41 \=
BOND
529.52
GRAPHIC SCALE
20 0 10 20 40
LIMITS OF PROPERTY
COINCIDES WITH LIMITS OF
VAR. WIDTH SWM ESMT.
(DB 4000, PG 30-A)
2499 f�CP -10 ES
52q.68,-
n
z
r,<
80
J
N
�v
X
526.6
Tx 0�1�
SCOTT R. COI TINS
�.D No. 35791
�SS7DNAL�Fl-
z
u
u z
f z
O
I III �I I,
_,----LIMITS OF 100'
WPO BUFFER
Cn
co
U
i
LU
a
Z
O
0
LU
t.
35' WIDE RIPRAP
°
►_iNED EMERGENCY
Uj
SPILLWAY CREST
o
ELEVATION=525.0
a
0
T�
36" RISER TOP ORIFICE
U
OPENING ELEV.=524.08
03i" ORIFICE OPENING INVERT o
EhEV.=521.48' o
03 ORIFICE OPENING INVERT '
E 'EV.=523.08'
2,-" RCP BARREL INV.
Qf�WT=518.34
L9
cn
U
§r .
nV ,/ - ® O
n
�i�r /`,'% LIMITS OF PROPERTY 0
%r Ir1 % r1 j r4/
i, / COINCIDES WITH LIMITS OF
NAR. WIDTH SWM ESMT, '
10' WIDE TOP
OF DAM (DB 4000 PG 30-A)
a
0
Cn
060" RISER TOP-52 j.28
it ! TRASH RACK TOP-525.97 Uj
s
24" RCP INV. IN=516.44
r 1 , s� 36" RCP INV. -512.73
U
OkYT
i Q
FOREBAY TOP'
/ o
OF DAM=522' U
� L9
°
o
LL.
f
&
@) �� I
Ljo
l
J � N
i- 1> 36" RCP-10 ES o
15" RCPgy-10 ES 508.51 1
x526.90 1 5161
SCALE a
A SHOWN
i co
SHEET NO. a
( 1N FEET }
1 inch = 20 1t.