HomeMy WebLinkAboutZMA200600008 Code of Development 2008-06-25Code of
Development
Berkmar Business Park
North, Albemarle County
Virginia
Stonehaus Development
2421 Ivy Road
Charlottesville, VA 22903
Submitted 2/19/2008
Revision 4/21/2008
Revision 6/4/2008
Revision 6/23/2008
BBP North Code of Development
June 23, 2008
Albemarle County Neighborhood Model District
Berkmar Business Park Code of Development
Table of Contents
N
General Project Information ...................................... ..............................3
II
General Development Plan ....................................... ..............................4
III
Block Characteristics ................................................ ..............................5
IV
Table of Uses by Block ............................................. ..............................5
Developed Square Footage Proposed (Section 20A.5.b and 20A.5.c).......8
V
Affordable Units by Type and Block .............................. ..............................9
VI
Green Space and Amenities ....................................... .............................10
VIIArchitecture
............................................................ .............................12
VIII
Landscape Treatments ............................................. .............................13
IXSpatial
Enclosure ..................................................... .............................14
X
Lot & Building Height Regulations ............................... .............................15
XI
Primary and Secondary Development Areas ................. .............................16
XII
Features to be Preserved .......................................... .............................17
XIII.
Descriptions of Methods to be used for Stormwater Management ..................
XIV
Street Cross Section ............................................. ...............................
N
BBP North Code of Development
June 23, 2008
Albemarle County Neighborhood Model District
Berkmar Business Park North Code of Development
I. General Project Information
A. Name of Project — Berkmar Business Park North
B. TMP(s) — 45 112, 112E and Part 45- 112G
C. Description of Project — Berkmar Business Park North (BBP North)
will be a mixed office and retail commercial development, with the
opportunity for residential uses. BBP North is distinguished by its
investment in urban block infrastructure that establishes a new
development pattern in a primarily suburban context and creates a
platform for long -term sustainable development on this site.
D. Maximum number of residential units is 190 and maximum square
footage of non - residential uses is 275,000 sf.
3
BBP North Code of Development
II. General Development Plan
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BBP North Code of Development
III. Block Characteristics
June 23, 2008
Each block within the BBP North development is designed to accommodate
commercial or mixed use development in a variety of potential configurations.
Blocks 1 and 2 are roughly similar in dimension and meant to accommodate
buildings on both the Berkmar Drive frontage as well as the parallel
secondary street and /or the northernmost perpendicular road adjacent to
Block 2. Blocks 3 and 4 are half blocks designed to accomodate narrower
building footprints and uses with lower parking demand. If parking garages
are constructed, they will be at the location shown on Plan Option 4 of the
application or within secondary development areas (as shown on the General
Development Plan) if primary areas are built to a higher density than can be
surface parked within the designated parking zones.
IV. Table of Uses by Block (Section 20A.5.a., 20A.5.e., 20A.5.f.,
20A.5.i.1., and 20A.5.i.2.
The table below establishes the permitted uses, the special uses, and prohibited
uses by block. The letter "P" symbolizes uses permitted by- right. The letters
"SP" symbolize uses allowed by special use permit only. The lack of either
symbol means that the use is prohibited in the block.
Immediately following the table is a list of any requirements or restrictions
associated with each use, in accordance with Section 20A.6.i.2.
Permitted /Prohibited Uses by Block
Residential Uses
Block Numbers
1
12
3
4
Semi - detached and attached single family (duplexes,
triplexes, townhouses)
P
P
P
P
Multi- family
P
P
P
P
Assisted Living
P
P
P
IP
Accessory uses and buildings including storage
buildings
P
P
P
P
Rest home, nursing homes, or convalescent homes
P
P
P
P
Non - Residential Uses
Administrative, professional offices
P
P
P
P
Antique, gift, jewelry, notion and craft shops
P
P
P
P
Athletic facility
P
P
P
P
Auction houses
P
P
P
P
Barber, Beauty shops
P
P
P
P
Church
P
P
P
P
Clothing, apparel and shoe shops
1P
1P
1P
1P
BBP North Code of Development
June 23, 2008
Clubs, lodges, civic, patriotic
P
P
P
P
Commercial recreation establishments. Bowling
alleys, pool halls and dance halls are prohibited.
P
P
P
P
Community Center
P
P
P
P
Convenience store
P
IP
P
IP
Day care, child care, or nursery facility
P
P
P
P
Department store
P
P
P
P
Drive - through windows serving or associated with
permitted uses
SP
SP
SP
SP
Drug store, pharmacy
P
P
P
P
Eating establishment
P
IP
P
IP
Farmers' Market
P
P
P
P
Financial Institutions
P
P
P
P
Florist
P
P
P
P
Food and grocery stores including such specialty
shops as bakery, candy, milk dispensary and wine
and cheese shops.
P
P
P
P
Furniture and home appliances sales and service
P
P
P
P
Hardware store
P
P
P
P
Health club and /or spa
P
P
P
P
Home Occupation Class A
P
P
P
P
Homes for developmentally disabled persons
P
P
P
P
Hospitals
P
P
P
P
Hotels, motels and inns
P
P
P
P
Indoor athletic facilities
P
P
P
P
Indoor theaters
P
P
P
P
Laundries, dry cleaners
P
P
P
P
Libraries, museums
P
P
P
P
Light Warehousing
P
P
P
P
Medical center
P
IP
P
P
Musical instrument sales
P
P
P
P
New automotive parts sales
P
P
P
P
Newsstands, magazines, pipe and tobacco shops
P
P
P
P
Office and business machines sales and service
P
P
P
Optical goods sales
P
P
P
P
Outdoor eating establishment or cafe ]JID
P
P
P
P
Outdoor storage, display and /or sales serving or
associated with a by -right permitted use, if any portion
of the use would be visible from a travelway
SP
ISP
ISP
SP
Photographic goods sales
P
P
P
P
Private schools
P
P
P
P
Professional offices, including medical, dental and
P
P
1P
P
BBP North Code of Development
June 23, 2008
optical
School of special instruction
P
P
P
P
Sporting oods sales
P
P
P
P
Stand alone parking and parking structures
P
P
IP
Stormwater management facilities shown on an
approved final site plan or subdivision plat
P
P
P
P
Tailor and /or seamstress
P
P
P
P
Tier I and /or Tier II personal wireless facility
P
P
P
P
Temporary construction uses
P
IP
P
IP
Tourist Lodging
P
P
P
P
Veterinary office and hospital
P
P
P
P
Visual and audio appliances sales
P
P
P
P
Wayside stands — vegetable and agricultural produce
P
P
P
P
Electric, gas, oil and communication facilities excluding tower
structures and including poles, lines, transformers, pipes, meters
and related facilities for distribution of local service and owned and
operated by a public utility. Water distribution and sewerage
collection lines, pumping stations and appurtenances owned and
operated by the Albemarle County Service Authority.
P
P
P
P
Public uses and buildings including temporary or mobile facilities
such as schools, offices, parks, playgrounds and roads funded,
owned or operated by local, state or federal agencies (reference
31.2.5); public water and sewer transmission, main or trunk lines,
treatment facilities, pumping stations and the like, owned and /or
operated by the Rivanna Water and Sewer Authority (reference
31.2.5; 5.1.12)
P
IP
P
P
Restrictions /Requirements associated with Uses Above:
Parking structures shall include architectural features to shield headlights from shining
into adjacent residential uses. Additionally, any required ventilation for parking structures
shall be directed away from residential uses or amenity areas.
7
BBP North Code of Development
June 23, 2008
Developed Square Footage Proposed (Section 20A.5.b and 20A.5.c)
Density, Housing Type and Non - Residential Use by Block
Max.
Block
Approx.
Min. Max.
Gross
Min
Max Non -
Block Size
Dwelling Dwelling
Density
Non -res.
res. Sq.
Max Retail
Block
acres
Units Units
DU /Acre
Housing Types
S . Ft.
Ft.
S . Ft.
Will be all semi - attached, all
attached, all multi - family, all multi-
family above non - residential uses, or
Block 1
2 Acres
0 73
37.5
a mixture of any of the above.
20,000
100,000
10,000
Will be all semi - attached, all
attached, all multi - family, all multi-
family above non - residential uses, or
Block 2
2 Acres
0 73
37.5
a mixture of any of the above.
20,000
100,000
10,000
Will be all semi - attached, all
attached, all multi - family, all multi-
family above non - residential uses, or
Block 3
.6 Acres
0 15
30
a mixture of any of the above.
5,000
25,000
2,500
Will be all semi - attached, all
attached, all multi - family, all multi-
family above non - residential uses, or
Block 4
1 Acre
0 29
30
a mixture of any of the above.
10,000
50,000
5,000
Total
5.6 Acres
0 1901
341
55,000
275,000
27,500
Notes: 1) Parking requirements will be determined at time of site plan. The
number of parking spaces shown on the illustrative plan only reflects parking
requirements for office use.
BBP North Code of Development
V. Affordable Units by Type and Block
Block
Minimum and
maximum
number of
units
Minimum
Affordable
Dwelling
Units
Maximum
Affordable
Dwelling Units
Housing Types
Block 1
0-75
15%
75
All allowable
within block
Block 2
0 -75
15%
75
All allowable
within block
Block 3
0 -15
15%
15
All allowable
within block
Block 4
0 -25
15%
25
All allowable
within block
Total
0 -190
15%1
190
June 23, 2008
BBP North Code of Development
June 23, 2008
VI. Green Space and Amenities (Section 20A.5.d.,
Section 20A.5.i.7., and 20A.5.i.10.)
At least one pedestrian oriented outdoor gathering space shall be provided per
block and it shall be of the minimum size indicated in the table on the
following page. These spaces shall be adjacent to the buildings, proximate to
an entrance, and along a pedestrian connection. Outdoor furnishings shall be
a combination of items such as, outdoor seating, outdoor tables, bike racks
and litter receptacles. Additional outdoor amenities, such as but not limited to
planters, tree guards, fountains, and sculptures are allowed.
BERKMAR BUSINESS PARK NORTH
GREEN SPACE/ AMENITY
• ` ; I BLOCK3 "b..nd.
KEY
® AMENITYAREA
PRIMARY STREETS
REZONING BOUNDARY
BLOCK BOUNDARIES SECONDARY STREETS
PARIUNG ZONES PEDESTRIAN ROUTES
MEMO LEVEL ONE SPATIAL ENCLOSURE
111111111 LEVELTWO SPATIAL ENCLOSURE
10
1
BLOCK 1 B
BLOCK
PLANETFUN
1 P
BUILDING a
a `
``
1 I
I I
II 111111
•�
10
BBP North Code of Development June 23, 2008
Illustrative rendering of a conceptual amenity area between buildings, mid - block.
Minimum Green Space, Civic Areas, and Amenity Areas by Block
Amenity Green
Area - Min. Space -Min. Amenity /Green Space
Sq. Ft. Amenities Sq. Ft. Elements
Block 1
4 benches or 4
tables w /chairs
Plaza, landscaped beds,
or any
grass, urban hedges,
Outdoor Gathering Spaces
combination of
Shade &
Expanded sidewalk Areas
2,200
the above
13,000
ornamental trees
Block 2
4 benches or 4
Plaza, landscaped beds,
tables w /chairs
grass, urban hedges,
or any
Shade &
Outdoor Gathering Spaces
combination of
ornamental trees
Expanded Sidewalk Areas
2,200
the above
13,000
11
BBP North Code of Development
June 23, 2008
Block 3
3 benches or 3
Plaza, landscaped beds,
tables w /chairs
grass, urban hedges,
or any
Shade &
Outdoor Gathering Spaces
combination of
ornamental trees
Expanded Sidewalk Areas
1,000
the above
4,000
Block 4
3 benches or 3
tables w /chairs
Plaza, landscaped beds,
or any
grass, urban hedges,
Outdoor Gathering Spaces
combination of
Shade &
Expanded Sidewalk Areas
1,100
the above
6,500
ornamental trees
Total
6,500
36,500
Note: If multi - family units are built, recreational amenities as required by the
Zoning code or alternative equivalents as approved by the Director of
Planning shall be constructed. If alternate equivalent recreational amenities
interior to the building being constructed are not approved by the Director of
Planning, area(s) adjacent to the multi - family buildings shown for buildings or
parking shall be replaced with outdoor recreational facilities, as approved by
the Director of Planning
VII. Architecture (Section 20A.g. 1, 25 35 45 55 6)
1. The form, massing, and proportions of structures -
Windows shall be used on exterior walls of each floor to indicate a change in
stories. Ground floor facades facing public streets shall utilize appropriate scale
windows, awnings and /or fagade treatments to provide a pedestrian friendly retail
environment.
2. Architectural styles —
AII architectural styles are allowed for buildings in Berkmar Business Park.
3. Materials, colors, and textures —
The primary materials of all buildings shall be a masonry material. Examples of
acceptable masonry materials are brick, concrete block (split -face or smooth),
stucco, and fiber cement siding (panel or lap). On the first floor of a building,
storefront glass is an acceptable alternative to a primary masonry exterior.
4. Roof form and pitch —
12
BBP North Code of Development
June 23, 2008
Both pitched roofs and flat roofs are appropriate. Roof style shall be appropriate
to the architectural style of the building.
5. Architectural ornamentation —
Architectural ornamentation shall be appropriate to the style of the building.
Ornamentation shall be used around window and storefront openings, at
transitions between floors, at the entrance to the building, and at the cornice.
6. Fagade treatments, including window and door openings —
Window and door openings shall be arranged in a balanced manner. No
building fagade facing a street shall extend for more than 100 feet in the same
plane. The minimum change in plane shall be 6 feet and the cumulative total
length of the change in plane shall extend for no less than 20% of the length of
the building fagade.
Covenants shall be recorded for the property and an Architectural Review Board
for the Association will be established to enforce the preceding architectural
guidelines. Prior to requesting a building permit, a letter of compliance from the
BBP ARB will be required. Additionally, a letter of final compliance from the BBP
ARB will be required prior to occupancy of the building.
VIII. Landscape Treatments (Section 20A.g.7.) in addition to the
landscaping requirement of the Albemarle County Zoning Ordinance, the following minimum
landscaping shall be provided:
Area
Specific
Plant
Spacing
Special Conditions
Location
Type
Street
Along
Large
1 no less
Street Tree species may vary
Frontage
Berkmar Dr.
shade tree
than every
within the same street but
50 feet
should have a similar shape,
canopy and height.
Street
Proposed
Large or
1 no less
Street Tree species may vary
Frontage
Connector
Medium
than every
within the same street but
Rd. between
shade tree
40 feet
should have a similar shape,
Berkmar Dr.
canopy and height.
and 29
Street
Interior
Large or
1 every 40
Street Tree species may vary
Frontage
private roads
medium
feet or no
within the same street but
shade tree
fewer than
should have a similar shape
6 trees per
canopy and height.
block
Street
Primary
Shrubs
Minimum
Foundation plantings shall be
Frontage
Building
and /or
6 per
provided wherever green
entrance &
ornamental
entrance.
space abuts building and shall
facade
trees
be a minimum of 4' in width.
13
BBP North Code of Development
June 23, 2008
Restrictions /Requirements Associated with Standards Above
(1) Species must conform to the Albemarle County ARB Landscape Plant Standards.
(2) All shade trees shall be a minimum of 3" in caliper at the time of planting. All ornamental
trees shall be 6 -8 feet tall at planting.
IX. Spatial Enclosure
The concept of Spatial Enclosure consists of three components: how far the
buildings are set back from the street, how tall the buildings are that line the
street, and how much of the street frontage is filled in with buildings and /or other
structures that help create a sense of enclosure. The establishment of build -to
lines and building height restrictions define the first two parts of this equation.
The landscape standards ensure that street trees will line every street. Streets
have been identified as primary and secondary as have development areas
within the site. This hierarchy should insure that the important elements of
spatial enclosure are achieved in the most important areas first in order to limit
impacts of surface parking lots.
To this end, the General Development Plan identifies two levels of spatial
enclosure:
1. Level 1 Spatial Enclosure — A minimum of 60% of the street frontage,
as measured from the road centerline of the cross street at one end of
the block to the centerline of the cross street at the other end, shall
have buildings along it. When there is no cross street to make the
measurement from, the rezoning boundary shall be used as the
equivalent of a cross street road centerline for purposes of making this
measurement. Except on Berkmar Dr, where no at -grade parking lots
are allowed, up to 1/3 of the required building frontage can be walls or
solid fences no less than 36 inches high. Walls or fences shall be
constructed to run parallel to the street and within the build -to line.
Any building fagade which parallels the street and is set back from the
right -of -way less than 35 feet shall be included in the spatial enclosure
calculation.
2. Level 2 Spatial Enclosure — A minimum of 15% of the street frontage
as measured from the road centerline of the cross street at one end of
the block to the centerline of the cross street at the other end, shall
14
Trash,
Evergreen
Adequate
Enclosure provided through
HVAC
Shrubs
to provide
fencing or screening plants to
and/or
screening
the standards for fencing and
trees
when
screening plants in the Zoning
mature.
Ordinance.
Restrictions /Requirements Associated with Standards Above
(1) Species must conform to the Albemarle County ARB Landscape Plant Standards.
(2) All shade trees shall be a minimum of 3" in caliper at the time of planting. All ornamental
trees shall be 6 -8 feet tall at planting.
IX. Spatial Enclosure
The concept of Spatial Enclosure consists of three components: how far the
buildings are set back from the street, how tall the buildings are that line the
street, and how much of the street frontage is filled in with buildings and /or other
structures that help create a sense of enclosure. The establishment of build -to
lines and building height restrictions define the first two parts of this equation.
The landscape standards ensure that street trees will line every street. Streets
have been identified as primary and secondary as have development areas
within the site. This hierarchy should insure that the important elements of
spatial enclosure are achieved in the most important areas first in order to limit
impacts of surface parking lots.
To this end, the General Development Plan identifies two levels of spatial
enclosure:
1. Level 1 Spatial Enclosure — A minimum of 60% of the street frontage,
as measured from the road centerline of the cross street at one end of
the block to the centerline of the cross street at the other end, shall
have buildings along it. When there is no cross street to make the
measurement from, the rezoning boundary shall be used as the
equivalent of a cross street road centerline for purposes of making this
measurement. Except on Berkmar Dr, where no at -grade parking lots
are allowed, up to 1/3 of the required building frontage can be walls or
solid fences no less than 36 inches high. Walls or fences shall be
constructed to run parallel to the street and within the build -to line.
Any building fagade which parallels the street and is set back from the
right -of -way less than 35 feet shall be included in the spatial enclosure
calculation.
2. Level 2 Spatial Enclosure — A minimum of 15% of the street frontage
as measured from the road centerline of the cross street at one end of
the block to the centerline of the cross street at the other end, shall
14
BBP North Code of Development
June 23, 2008
have buildings along it. When there is no cross street to make the
measurement from, the rezoning boundary shall be used as the
equivalent of a cross street road centerline for purposes of making this
measurement. In addition, if surface parking is located within 10 feet of
the edge of Right -of -Way of a secondary street, then the Owner shall
provide a minimum of a 36 inch high wall or solid fence or a hedge
along the entire length of the parking area. To comply, urban hedges
must be a minimum of 24 inches high at the time of installation and no
less than 36 inches at maturity, with an on- center spacing of no more
than 4 ft. Shrub species must be selected from the Albemarle County
ARB plant standards for Screening Shrubs or Street Shrubs. When a
hedge is provided the spatial enclosure requirement for that block shall
be considered to have been satisfied.
The Owner may phase the development within each block. The
ultimate goal shall be to achieve 60% enclosure on all public streets.
X. Lot and Building Height Regulations (Section 20A.5.i.3, 45 5)
Building
Lot
Front
Side
Rear
Min /max
Max
Type
Width
Build -to-
Setback
Setback
stories
Bldg
Lines
Height
Single
16-60
5-12
0
3
2 - 4
55
family
attached
Multi-family
n/a
3-15
4
3
2-4
60
Accessory
n/a
(1)
3
3
1 -2
25
structures
Mixed Use
n/a
1 —15
3
0
1 -5
65
Non-
n/a
1— 15
0
0
1- 5
65
residential
Note:. Build -to lines are to be measured from the R.O.W.
Restrictions /Requirements associated with Standards Above
(1) Accessory structures are not allowed between the building and the
street.
(2) Porches (1 & 2 story), porch stairs, decks, balconies, bay windows,
raised dooryards, entrance stoops, planters, chimneys and other
similar structures are permitted to extend in an attachment zone (i.e.,
the area in front of the build -to line) by no more than four feet. Under
15
BBP North Code of Development
June 23, 2008
no circumstances may these structures extend into the VDOT right -of-
way.
(3) The minimum height of buildings fronting on Berkmar Drive shall be
20'. For buildings fronting on Berkmar Dr, which are 1 -2 stories in
height, the build -to range shall be 1 -10 ft. For buildings fronting on
Berkmar Dr, which are 3 -4 stories in height, the build -to range shall be
5 -15 ft. For buildings fronting on Berkmar Dr, which are 5 stories in
height, the build to range shall be 10 -20 ft.
XI. Primary and Secondary Development Zones
The General Development Plan identifies Primary and Secondary Development
zones. These zones are defined as follows-
1 . Primary Development Zones are defined as those zones
within which buildings should be constructed first and in which
buildings 20 feet in height or greater are required. In addition,
Primary Development Zones shall have a spatial enclosure of
no less than 60% as defined in section IX above. In the event
that development in a Primary Development Zone exceeds the
density that can be surface parked within designated parking
zones, and on- street parking spaces, then additional surface or
structured parking may be constructed in Secondary
Development Zones to accommodate the parking demand
within the Primary Development Zone. At no time shall surface
parking be allowed in a Primary Development Zone.
2. Secondary Development Zones are those zones which are
intended to be built out after the Primary Development zones.
The scale and height in the Secondary Development Zones
should be consistent with the Primary Development Zones
unless limited by parking availability. Secondary Development
Zones may be used for parking if required to support density
and scale in the Primary Development Zones.
The Owner shall have the right to construct parking (surface or
structured) in any Secondary Development Area to support the
parking requirement of a building in a Primary Development
Zone. The Owner shall have the right to construct a building in
a Secondary Development Zone, in a block, prior to construction
of a building in a Primary Development Zone of a block,
provided that at no time shall surface parking be allowed in a
Primary Development Zone.
16
BBP North Code of Development
June 23, 2008
XII. Features to be Preserved (Section 20A.g.8., 20A.i.8.)
A. Existing Historic Structures — none
B. Historic /Archeological Sites — none
C. Preservation Areas — none
D. Conservation Areas — none
E. Method of preservation — N/A
XIII. Descriptions of Methods to be used for Storm Water
Management
The Regional Kegler detention basin serves multiple parcels and properties receiving a
total drainage area of 75.46 acres (See "Existing Kegler's Detention Basin Stormwater
Analysis ", by Kelsey 1994). The Berkmar site is included in this drainage area and is
9.25 acres in size. This site is split between a by -right use (approx. 3.57 acres) and the
portion that rezoning is currently being proposed for in this submittal (approx. 5.68
acres). The modification of the pond proposed here addresses the entire site (9.25
acres) for detention purposes, while water quality measures would be handled on -site
and separately for the by -right and rezoning portion. The original design of the basin
assumed that the entire Berkmar site (excluding parcel 112E of 1.74 acres) would be
developed to the maximum imperviousness permitted (C = 0.8).
The proposed modifications to the Regional Kegler basin have been updated from the
previous study and re- zoning submittal, dated 11- 06 -07, to reflect conditions reported by
a ground survey that has since been conducted. The original analysis and submittal was
based on, what is believed to be, an aerial survey. The surface areas and volumes
resulting from the ground survey more closely match the surface areas and associated
volumes reported by Kelsey in 1994 (within 5 %) and is used here for calibration. In
addition, the inverts provided in the recent (Feb 08) ground survey are used here, as
they provide the most up -to -date information. The results presented in this study provide
an estimation of the approximate water levels and discharges for the 2, 10 and 100 year
storms.
For this study, a model was calibrated and compared to the results of the Kelsey 1994
study. The proposed changes were then analyzed. The changes include: 1.) providing
3:1 slopes throughout the basin starting below the 472 contour, creating an additional
100,236 cf (3712 CY) of storage and 2.) replacing the existing 18" diameter with a 15"
diameter orifice. The approximate volume needed to detain the 2 year storm for the
entire Berkmar site and for the 10 year storm for parcel 112E would be approximately
10,677 cf and 3,841 cf, respectively.
It is not possible at this time to know whether it will be feasible to excavate below the
current bottom pond level (455 ft) located at the invert of the 10 year orifice, until a
17
BBP North Code of Development
June 23, 2008
geotechnical study is performed. For this study, it is assumed that bedrock exists at the
bottom of the basin and that all excavation will need to be performed laterally above the
bottom floor level.
The preliminary results show that there is enough capacity in the pond with the proposed
modifications to contain the 2 year storm for the subject region and for the 10 year storm
for the 112E parcel. Additionally, it was found that the water levels for the 10 and 100
year water levels would exceed the water levels that would occur without the
modifications to the pond by no more than 4 inches. The 100 year water level, reported
by Kelsey would occur at an elevation of approx. 473.24 ft., while with the proposed
pond modification, it would occur at approx. 473.39 ft. It is estimated that overtopping
into the Kegler property would occur at approximately 479 ft, thereby yielding a
freeboard of approximately 5.5 -6 ft in either case.
A major benefit of the proposed plan is the reduction of the 2 year peak discharge for the
larger 75 acre drainage area. The 2 year storm is the primary influence on the shape
and path of the downstream channel. By reducing the diameter of the orifice from 18" to
15" and increasing the storage volume available, the routed peak discharge decreases
from approximately 27.7 cfs (calibrated) to 18.4 cfs. Other potential benefits of the
proposed modifications include 10 year peak reduction from 72 cfs (calibrated) to 54 cfs,
the opportunity to potentially include sediment forebays, trash racks for the currently
open riser, and general maintenance of the pond.
No water quality measures are proposed to be included in the detention pond. All water
quality requirements for the re- zoning portion of the site will be handled on -site. All
water quality measures for the by -right parcel will be addressed in a future preliminary
plan submittal.
*Depending upon results of further stormwater analysis, as necessary, appropriate
easements and maintenance agreements will be provided.
BBP North Code of Development June 23, 2008
XIV. Street Cross - Sections
A. Diagram identifying public and private streets. (Shown here in the
context of development option 1 (See Narrative)).
BERKMAR BUSINESS PARK NORTH
` PLANET FUN
BUILDING
■
� I ■
BLOCK 1 I BLOCK 2 a
R' �IIYIII� I I�Illlllllllr
`1
■ BLOCK3 I BIO• 4 ft
• �� —' �� I
_140—peffly bou`ndarY—
REZONING BOUNDARY ® PUBLIC ROADS
- -- BLOCKBOUNDARIES
PRIVATE ROADS
PARKING ZONES
TRAVEL WAYS
■ ■ ■ LEVEL ONE SPATIAL ENCLOSURE
IIIIIII II LEVELTWO SPATIAL ENCLOSURE
19
BBP North Code of Development
June 23, 2008
B. Cross - sections of the different streets showing location of sidewalks,
street, trees, and construction materials of sidewalks.
BERKMAR BUSINESS PARK NORTH
BLOCK 1 BLOCK 2
PLANET FUN
BUILDING
■
�' INIIII lltttttttt ff III IIIIIIRAL
I BLOCK3 OCK
properly boundary V
KEY
REZONING BOUNDARY
PRIMARY 5TREETS
BLOCKBOUNDARIES
SECONDARY STREETS
PARKING ZONES
TRAVELWAYS
■ ■ ■ N LEVELONE SPATIAL ENCLOSURE
111111111 LEVELTWO SPATIAL EN CLOSURE
Plan showing location of sections
(sections on following page)
20
BBP North Code of Development June 23, 2008
TYPICAL STREET SECTION A
Planting strip can vary in width from 6 -18 ft.
TYPICAL STREET SECTION B
21