HomeMy WebLinkAboutAgenda 06_SP-24-20_200 Davinci Dr_BSD Aviation Tech
180 Market Street, South Burlington, Vermont 05403 | 802-846-4106 | www.southburlingtonvt.gov
TO: South Burlington Development Review Board
FROM: Marla Keene, Development Review Planner
SUBJECT: #SP-24-20 200 Davinci Drive
DATE: June 18, 2024 Development Review Board meeting
PROJECT DESCRIPTION
Site plan application #SP-24-20 of Burlington School District to amend a previously approved plan
for an airport complex. The amendment consists of renovating an existing hangar for the use of
Burlington School District’s Aviation Technical Center, including reconfiguration of the parking and
site circulation, 200 Davinci Drive.
COMMENTS
The Board reviewed this application on June 4, 2024. The Board continued the hearing for the
purpose of allowing review of the revised materials submitted at the June 4 hearing date. This
memo focuses on items for which no conclusion was reached on June 4, 2024, including
discussion of the materials presented on that date. As always, the Board is welcome to bring up
any concerns with the revised plans that are not highlighted herein.
The Board is also reviewing the related master plan amendment at the June 18 hearing.
A) SITE PLAN REVIEW STANDARDS
14.06 General Review Standards
A. Relationship of Proposed Structures to the Site.
(1) The site shall be planned to accomplish a desirable transition from structure to site, from
structure to structure, and to provide for adequate planting, safe pedestrian movement, and
adequate parking areas.
The comment on this criterion in the June 4 Staff report focused on improving access to the
site for users that are not arriving in cars or buses given the proposed use of the building for
students, and the City’s prioritization of personal mobility (ie biking and walking).
In response to the June 4 report, the applicant has added an on-grade striped walkway from
the building across Davinci Drive to the existing sidewalk. Staff is strongly in support of a
crossing of Davinci Drive but has concerns about the proposed crosswalk location relative to
the 40-ft wide driveway that access both the proposed technical center and the Beta loading
dock area, highlighted in pink below, as well as the location of the walkway relative to the
driveway the applicant has testified is necessary for bus movements, highlighted in green
below.
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1. Staff recommends the Board direct the applicant to relocate the crosswalk and walkway
to a location that will provide safe pedestrian movement.
14.07 Specific Review Standards
C. Access and Circulation. All proposed development shall comply with site access and
circulation standards of Section 15.A.14.
The applicant is proposing to modify the access and circulation in front of the existing
hangars to the west of the subject building by formalizing one parking area, expanding
another, and realigning and widening the driveway at the east end of the parking areas. They
are not proposing modifications to the access and circulation in front of the subject building.
Relevant standards of 15.A.14 include those pertaining to safe pedestrian access and to
minimizing curb cuts by providing shared vehicular access. Davinci Drive is not currently a
public street, but there is an irrevocable offer of dedication to the City therefore it should be
treated as a public street for the purposes of layout and design.
On June 4, the Board asked the applicant to demonstrate that the proposed pavement is
minimized near the entrance to Davinci Drive, where there are four non-perpendicular
vehicle movements proposed to occur. The applicant verbally stated that they have
performed a turning movement analysis, but did not provide it. Members expressed
interest in seeing that the pavement has been minimized.
2. Staff recommends the Board ask the applicant to provide a turning movement plan
showing how the proposed configuration is optimized to minimize pavement and
maximize pedestrian safety.
H. Utility Services. Electric, telephone and other wire-served utility lines and service
connections shall be underground insofar as feasible and subject to state public utilities
regulations. Any utility installations remaining above ground shall be located so as to have
a harmonious relation to neighboring properties and to the site. Standards of Section
15.A.18, Infrastructure, Utilities, and Services, shall also be met.
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The property is currently served by overhead utilities. The applicant testified that the
utilities are underground from the utility pole near Davinci Drive to the building, and that it
will remain so. Staff recommends the Board include a condition of approval requiring the
line type on the plans to be updated to reflect that the utilities are underground.
B) SUPPLEMENTAL REGULATIONS
13.02 Off Street Parking and Loading
G. Design requirements for Parking Spaces, Parking Aisles, Lighting and Landscaping
(1) Design requirements for off-street parking and loading are provided in Table 13-2 and
Figure 13-1, Section 13.04, Landscaping , Screening, and Street Trees, and Section 13.07,
Exterior Lighting. All paved parking spaces shall be striped or otherwise physically
delimited.
Sections 13.04 and 13.07 are discussed below. Parking is proposed to meet the required
dimensional standards.
(2) The location of parking areas and loading docks shall prevent conflicts with entering
and existing traffic onto a public street and prevent conflicts between vehicles and
pedestrians. The distance between access points and parking areas shall be adequate to
minimize blockage and prevent back-ups onto the public street.
Staff considers this criterion met.
(3) Provision shall be made for access by police, fire and emergency vehicles.
The Fire Marshal reviewed the project on 5/22/2024 and indicated there were no comments
pertaining to the Development Review Board’s review of the project.
(4) Pedestrian safety. Insofar as practicable, pedestrian and bicycle circulation shall be
separated from motor vehicle circulation. Safe and convenient pedestrian circulation,
including appropriate sidewalks, shall be provided on the site and its approaches. The
pedestrian circulation on site shall be designed to minimize adverse effects of vehicular
traffic on sidewalks and recreation paths.
The applicant is proposing an on-grade striped pathway from the parking area to the
building. On June 4, the applicant testified that they cannot provide a curbed sidewalk
because the pavement needs to be flat in order to drain. Staff has reviewed the provided
grading plans and watershed plans and is unable to reconcile the statement made by the
applicant with the provided plans. It appears that if the sidewalk were raised, excess runoff
from the pervious area north of the sidewalk would flow overland to the proposed
bioretention area, and runoff from the proposed pavement would run along the curb to the
proposed bioretention area.
3. Staff recommends the Board direct the applicant to raise the sidewalk so that it is
protected from the drive aisle by curbing or in another manner.
13.03 Bicycle Parking and Storage.
As discussed on June 4, the applicant is required to provide at least 5 short term bicycle parking
spaces. The applicant testified that they are proposing 8 short term and 2 long term spaces. The
required short term spaces are shown on the enlarged entrance plan, sheet SP-02.
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13.04 Landscaping, Screening & Street Trees
B. Except for parking spaces accessory to a one-family or two-family dwelling, all off-street
parking areas subject to review by the Development Review Board shall be curbed and
landscaped with appropriate trees, shrubs, and other plants including ground covers, as
approved by the Development Review Board. Sections of recessed curb are permitted if their
purpose is to allow stormwater runoff from the adjacent parking area to reach stormwater
collection, treatment and management infrastructure. The Development Review Board shall
consider the adequacy of the proposed landscaping to assure the establishment of a safe,
convenient, and attractive parking area and the privacy and comfort of abutting properties.
The applicant is proposing to reconfigure and add parking so that there are 66 parking spaces
west of the building. Staff considers these standards apply to those 66 spaces.
(1) All off-street parking areas shall be landscaped around the perimeter of the lot
with trees, shrubs and other plants. Perimeter planting shall be set back from the curb
sufficiently to allow for snow storage. The purpose of perimeter planting shall be to
mitigate the view of the parking lot from the public way and from adjacent uses and
properties, and to provide shade and canopy for the parking lot. In some situations it may
be necessary, both for surveillance purposes and for the perception of safety, to install the
size and type of plants that leave visual access between the parking lot to the public way
or other pedestrian areas.
The applicant has provided a revised planting plan which includes six shrubs which reach a
mature height of 2.5 feet, and 26 grasses, concentrated around the three northern most
parking spaces.
During the hearing the applicant indicated that the parking area is below the existing
roadway. The plans indicate the parking area is approximately 4-feet below the existing
roadway. Staff considers the grade difference to be sufficient to mitigate headlights from
the adjoining roadway. The purpose of providing shade and canopy for the parking lot is
not met.
There are shade trees planted on the far side of Davinci Drive relative to the project, which
Staff considers will not provide shade to the parking lot. Shade trees are specifically
discussed under (4) below.
(2) In all parking areas containing twenty-eight (28) or more contiguous parking
spaces and/or in parking lots with more than a single circulation lane, at least ten percent
(10%) of the interior of the parking lot shall be landscaped islands planted with trees,
shrubs and other plants. Such requirement shall not apply to structured parking or below-
ground parking.
As discussed on June 4, this standard applies to this project and compliance is computed
by taking the square footage of the parking area and the square footage of landscaping
islands contained therein. Staff has estimated this to the best of their ability and calculates
that roughly 8% of the interior of the parking lot consists of landscaping islands, though no
trees are provided.
4. Staff recommends the Board direct the applicant to reduce the parking area, increase the
landscaping area, or both, to meet this criterion, and demonstrate compliance by
providing a figure.
(3) All interior and perimeter planting shall be protected by curbing unless specifically
designed as a collection and treatment area for management of stormwater runoff as per
13.04(B)(5)(c) below. Interior planted islands shall have a minimum dimension of six (6)
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feet on any one side, and shall have a minimum square footage of sixty (60) square feet.
Large islands are encouraged.
No curbing is shown on the proposed plans, though the applicant stated that they are
proposing curbing on the Davinci Drive side of the parking lot. They note the presence of a
stone lined swale along the airport side of the parking lot as a reason to not provide
parking. Though Staff can confirm that stormwater runoff would indeed flow to that side
of the parking lot based on the provided grading plan, the submitted plans only show a
stone lined swale for approximately 16 feet of the 800+ foot long parking lot.
5. Staff recommends the Board require the applicant to provide curbing along the parking
lot except for the 16-feet of stone line channel, and along the drive aisle where the drive
aisle is adjacent to the bioretention area for protection of the plantings included therein,
as well as along the Davinci Drive side of the parking lot. This recommendation is
supported by the comments of the City stormwater section, below.
(4) Landscaping Requirements
(a) Landscaping shall include a variety of trees, shrubs, grasses and ground covers. All
planting shall be species hardy for the region and, if located in areas receiving road
runoff or salt spray, shall be salt-tolerant.
This criterion should be used in designing the proposed landscaping for the revised
and expanded parking lot. Staff recommends the Board seek the feedback of the City
Arborist on the revised parking lot landscaping when provided.
(b) At least one (1) major deciduous shade tree shall be provided within or near the
perimeter of each parking area, for every five (5) parking spaces. The trees shall be
placed evenly throughout the parking lot to provide shade and reduce glare. Trees
shall be placed a minimum of thirty (30) feet apart.
(c) Trees shall have a caliper equal to or greater than two and one-half (2 ½) inches
when measured on the tree stem, six (6) inches above the root ball.
(d) Where more than ten (10) trees are installed, a mix of species is encouraged; the
species should be grouped or located in a manner that reinforces the design and
layout of the parking lot and the site.
As noted about, shading is the second purpose for requiring parking lot perimeter
planting.
The applicant testified that they cannot provide additional perimeter plantings due to
grading. Staff has calculated that the slopes between the parking area and Davinci
Drive range from 12% to 60%.
6. 14 shade trees would be required for 66 parking spaces. Staff recommends the Board
direct the applicant to provide at least some fraction of the required shade trees.
(7) Snow storage areas must be specified and located in an area that minimizes the
potential for erosion and contaminated runoff into any adjacent or nearby surface waters.
7. Snow storage areas have been specified. These snow storage areas are located on
slopes as steep as 60% upwards away from the pavement. Staff considers it unlikely
that a snow plow would be able to push snow up a 60% slope and recommends the
Board require the applicant to modify the snow storage areas to include areas that are
actually realistic for snow storage.
C. Screening or buffering. The Development Review Board will require landscaping, fencing,
land shaping and/or screening along property boundaries (lot lines) whenever it determines that
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a) two adjacent sites are dissimilar and should be screened or buffered from each other, or b) a
property’s appearance should be improved, which property is covered excessively with pavement
or structures or is otherwise insufficiently landscaped, or c) a commercial, industrial, and multi-
family use abuts a residential district or institutional use, or (d) a parking or loading area is
adjacent to or visible from a public street.
(1) There shall be sufficient landscaping, walls, or fencing of sufficient height (minimum of three
(3) feet) and opacity to effectively screen the parking or loading area year-round from adjacent
public streets.
(2) Screening of a parking or loading shall be provided where headlights from vehicles on site may
be visible and project parallel to a public street.
Staff considers the elevation of the parking area relative to Davinici Drive to adequately meet
these two criteria.
I. Landscape Maintenance.
Maintenance and responsibility. All planting shown on an approved site plan shall be maintained
by the property owner in a vigorous growing condition throughout the duration of the use. Plants
not so maintained shall be replaced with new plants at the beginning of the next immediately
following growing season. Trees with a caliper of less than 5” may be replaced on an inch-by-inch
basis with trees of the same genus of at least 2” caliper each. No permit shall be required for such
replacements provided they conform to the approved site plan. Replacement of trees with a caliper
of greater than 5” shall require an amendment to the site plan.
The applicant is proposing to remove four (4) 8 to 10-inch caliper trees from the front of the
building. The applicant is now proposing to plant thirteen shrubs and 68 ornamental grasses.
8. Staff considers the proposed plantings to be insufficient replacement for the removed trees, as
they do not provide the same screening, shading, or general aesthetic value. Staff recommends
the Board discuss with the applicant how they will compensate for the proposed tree removal.
13.05 Stormwater Management
Stormwater standards apply when one-half acre or more of impervious surface exists or is
proposed to exist, and where 5,000 sf of impervious is created or reconstructed. The City
Stormwater Section reviewed the plans on June 11, 2024 and offers the following comments.
The Stormwater Division has reviewed the BSD Aviation Technical Center Site Plan Application
provided by EIV Technical Services. Please note that several issues were identified that, once
remedied, may have resulting implications for the stormwater design’s compliance with the
City’s LDRs and will likely require additional review. We would like to offer the following
comments:
1. General Application Comments:
a. Please provide a stormwater maintenance plan.
b. If the applicant is proposing the use of site balancing to meet the requirements of
the LDRs, please provide a narrative description of said site balancing.
2. HydroCAD Modeling:
a. 1-year storm: Peak discharge at CB#2 under the proposed conditions exceeds the
existing conditions peak discharge at CB#2. As per the LDRs Section 13.05.E.2, “The
post-construction peak runoff rate for the one-year, twenty-four hour (rainfall
amounts to be determined using NOAA, Atlas 14 data and a type II rainfall
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distribution) rain event shall not exceed the existing peak runoff rate for the same
storm event from the site under conditions existing prior to submittal of an
application.” Please revise design to comply with the LDRs.
b. 25-year storm: Model indicates surcharging occurring at CB#2 under the proposed
conditions. As per the LDRs Section 13.05.F.3, please revise design to ensure
downstream structures retain capacity to convey the 25-year storm.
c. The biorentention calls out a 1.0 in/hr discarded exfiltration, but also calls out 2.0
in/hr exfiltration routed to the outlet structure through an underdrain. Please
provide justification for the discarded exfiltration modeling decision.
d. Pre-treatment forebay: please provide sizing information for the forebay, ensuring
that it meets the sizing requirements laid out in the Vermont Stormwater
Management Manual (VSMM).
3. Sheet GR-01:
a. Grading in the pervious (grassed) areas is inadequate to determine flow path of
stormwater. Please provide details of how applicant will ensure all stormwater
draining from the impervious area in Sub-catchment #2 will enter the bioretention
via the pre-treatment forebay.
b. Please provide information on how the applicant will prevent stormwater from
creating a ponded area in the vicinity, both on and off the pavement, of the 312’
contour on the section of pavement connecting the two parking wings. Please note
that there is an existing light pole to remain directly adjacent to this area. Grading
information is inadequate to determine the extent of the ponding that may occur.
c. Please indicate the elevation at the edge of the bioretention area on the plan.
d. Staff recommends the applicant add curbing along the parking area to ensure all
stormwater flows to the treatment area and enters via the pre-treatment forebay.
4. Sheet P-01:
a. The delineation for Sub-catchment Area #2 does not appear to match the routing in
the HydroCAD model. Please explain how runoff from the new impervious in the
western corner of Sub-catchment Area #2 is being conveyed to the proposed
bioretention area.
b. Is site balancing being proposed to meet treatment requirements for the section of
new impervious in Sub-catchment Area #1? If so, please indicate on the plan the
size of the new area and the corresponding area in Sub-catchment Area #2 that will
be used for site balancing.
5. Sheet MD-03:
a. Please clarify the following in the bioretention basin detail:
i. There is an underdrain shown, but the basin is called out as an “infiltration
basin”. Please clarify whether or not this is an infiltrating bioretention
practice.
ii. The “Temporary/Permanent Sediment Forebay/Basin” callout. Please clarify
which of these options is shown here.
iii. Please clarify whether or not the outlet structure is meant to comply with
the “Drainage Structure” detail on this same sheet. If not, please provide
details of the outlet structure.
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6. EPSC: Please consider using the footprint of the bioretention area as a temporary sediment
basin during construction.
9. Because of the extensive nature of the comments of the City Stormwater Section, Staff
recommends the Board continue the hearing to allow these comments to be addressed.
13.07 Exterior Lighting
Lighting requirements are summarized as follows.
(1) Fixtures must be downcast and shielded
(2) Illumination must be evenly distributed
(3) Fixtures must be placed to minimize lighting from becoming a nuisance
(4) Poles shall be rustproof metal, cast iron, fiberglass, finished wood or similar
structural material, with a decorative surface or finish
(5) Poles & building mounted fixtures may be no higher than 30-ft
(6) Poles must be located in safe locations
Specific requirements for maximum illumination levels are included in Appendix A and are limited
to 3-foot candles average at ground level. The applicant has provided a photometric drawing but
has not indicated an average illumination level, though Staff considers it is likely to be below 3
foot candles.
The applicant has modified the previously submitted plan to remove the “hotspot” of 15
footcandles near the eastern entrance of the building. Illumination levels are now no greater than
9 footcandles. Staff considers lighting requirements to be met.
13.12 Utility Cabinets and Similar Structures
B. Specific Standards for Utility Cabinets and Similar Structures.
(4) There shall be sufficient landscaping or fencing of sufficient height and opacity to screen
effectively the facility year-round from streets and abutting unaffiliated properties.
10. The applicant testified that the generator is proposed to be 8 – 9 ft high, and the transformer is
5 – 6 ft high. The applicant further testified that the proposed plantings will only partially screen
the equipment. Staff recommends the Board require the applicant to provide screening of
sufficient height to screen the transformer from the street.
(5) The location of the facility shall be shown on all relevant site plans.
(6) Utility cabinets and similar structures shall be located a minimum of five (5) feet from all
existing or planned public roads or rights-of-way.
Staff considers criterion #5 and 6 to be met.
RECOMMENDATION
Staff recommends that the Board work with the applicant to address the issues identified herein.
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(REHABILITATION OF
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RECONFIGURE/EXPAND PARKING
66 SPACES (26 NET INCREASE)
STRIPED ADA COMPLIANT
PEDESTRIAN WALKWAY
EXISTING
RETENTION BASIN
RELOCATED
FIRE HYDRANT
EXISTING OVERHEAD DOOR TYP.
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BETA LEASE LINE
PROPOSED
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EXISTING ASPHALT
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(20,084 SF)
PROPOSED FULL DEPTH
ASPHALT PAVEMENT
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PROPOSED CONCRETE
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PROPOSED CONCRETE
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30.67'
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EXISTING SECURITY
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PROPOSED CONCRETE HVAC
EQUIPMENT PAD (24' X 5')
.32'
PROPOSED OVERHEAD DOOR
PROPOSED GENERATOR PAD
PROPOSED TRANSFORMER PAD
PROPOSED LAWN AREA
ADA PARKING SIGNS
MOUNTED ON EXISTING
SECURITY FENCE
PROPOSED LANDSCAPING AREAMAIN ENTRANCE
EXISTING HANGER
DOOR TO REMAIN
EXISTING DUMPSTER, COMPOSTING, RECYCLING AREA
PROPOSED SNOW STORAGE AREA
PROPOSED SNOW
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PROPOSED SNOW STORAGE AREA
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18' TYP.
24' TYP.
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426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
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PROPOSED HYDRANT
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PROPOSED PAVEMENT
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PROPOSED LAWN AREA'S
PROPOSED PEDESTRIAN WALKWAY
CONCRETE PADS
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OVERHEAD DOOR
SITE PLAN
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18715.02
03/01/2024
SP-01
PERMIT SET
PROJECT DATA
1. APPLICANT / LAND OWNER:
BURLINGTON SCHOOL DISTRICT
200 DAVINCI DRIVE
SOUTH BURLINGTON, VERMONT 05403
2.EXISTING ZONING: AIRPORT INDUSTRIAL
PARKING:
1 SPACE FOR EACH 2 EMPLOYEES ON MAXIMUM WORKING SHIFT.
TOTAL EMPLOYEES = 10
REQUIRED:
5 TOTAL SPACES REQUIRED
PROVIDED:
12 (UNSHARED), 79 TOTAL SPACES
ADA SPACES REQUIRED:
PER 2010 ADA STANDARDS FOR ACCESSIBLE DESIGN
REQUIRED (75-100 SPACE LOT): 4 SPACES)
FOR TOTAL PARKING 50-100 SPACES
PROVIDED (79 SPACE LOT): 4 SPACES
ZONING:
EXISTING:±796 ACRES AIRPORT INDUSTRIAL
PROPOSED:±796 ACRES AIRPORT INDUSTRIAL
TAX ACCOUNT NUMBERS:600-188-10911
SITE DATA
FEATURE REQUIRED PROPOSED
MINIMUM LOT SIZE,
NONRESIDENTIAL 3 ACRES 796.05 ACRES
MINIMUM FRONT YARD,
FROM RIGHT-OF-WAY 50 FEET > 50 FT
MINIMUM SIDE YARD 35 FEET > 35 FEET
MINIMUM REAR YARD 50 FEET > 50 FEET
MAXIMUM HEIGHT 40 FEET N/A
MAXIMUM LOT
COVERAGE 50%N/A
1 4/10/2024 CITY COMMENTS
2 5/31/2024 CITY COMMENTS
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POLE TO REMAIN
EXISTING UTILITY
POLE TO REMAIN
EXISTING STORM CATCH
BASIN TO REMAIN
EXISTING STORM CATCH
BASIN TO REMAIN
EXISTING BIO
EXISTING
HANGER
BUILDING
EXISTING
HANGER
BUILDING
EXISTING HANGER BUILDING
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
BETA
TECHNOLOGIES
BUILDING
X2
X2
X2
X2
X1 (2)
X2
X2
EXISTING BETA SITE
LIGHT POLE, TYP.
PROPOSED
LANDSCAPING BED
PROPOSED LAWN
AREA
CS
2CS
5
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9
SC
32
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X3 X3
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BG
11
SC
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DRAWING TITLE
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PROJECT MILESTONE
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426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
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LEGEND
EXISTING SITE
LIGHT POLES
PROPOSED BUILDING
MOUNTED LIGHTS
PROPOSED PLANTINGS
X2
SC
3
LIGHTING &
LANDSCAPING PLAN
1"=20'
DEL
AJF
AJF
18715.02
03/01/2024
LL-02
PERMIT SET
PLANTING NOTES
1.ALL NEW PLANT MATERIAL SHALL CONFORM TO THE MINIMAL GUIDELINES
ESTABLISHED BY THE AMERICAN STANDARD FOR NURSERY STOCK PUBLISHED BY THE
AMERICAN ASSOCIATION OF NURSERYMEN, INC. PROVIDE QUALITY, SIZE, GENUS,
SPECIES, VARIETY OF TREES AND SHRUBS INDICATED, AND ROOT BALL SIZE
COMPLYING WITH APPLICABLE REQUIREMENTS OF ANSI Z60.1 “AMERICAN STANDARD
FOR NURSERY STOCK.” ALL PLANTS SHOULD BE NURSERY GROWN UNDER CLIMATIC
CONDITIONS SIMILAR TO THOSE IN THE LOCALITY OF THE PROJECT.
2.PLANT SIZES: MEASURE TREES AND SHRUBS ACCORDING TO ANSI Z60.1 WITH
BRANCHES AND TRUNKS OR CANES IN THEIR NORMAL POSITION. TAKE CALIPER
MEASUREMENTS 6 INCHES ABOVE GROUND FOR TREES UP TO 4-INCH CALIPER SIZE,
MEASURE MAIN BODY OF TREE OR SHRUB FOR HEIGHT AND SPREAD; DO NOT MEASURE
BRANCHES OR ROOTS TIP-TO-TIP.
3.ALL CONTAINER GROWN PLANTS SHALL SIZED ACCORDING TO ANSI Z60.1 FOR TYPE
AND SIZE OF PLANT REQUIRED. PLANTS SHALL BE PREMIUM QUALITY, APPEAR 'FULL',
OR 'HEAVY' WITHIN THEIR CONTAINER, AND BE REPRESENTATIVE OF THE CONTAINER
SIZE SPECIFIED. PLANTS DEEMED TO BE SUBSTANDARD IN SIZE BY THE OWNERS
REPRESENTATIVE WILL BE REJECTED.
4.ALL NEW PLANTS TO BE BALLED AND BURLAPPED OR CONTAINER GROWN UNLESS
OTHERWISE NOTED ON PLANT LIST.
5.TREES SHOULD BE FRESHLY DUG DURING THE SEASON OF PLANTING, MARCH 1ST TO
MAY 1ST FOR SPRING PLANTING AND OCTOBER 15TH TO DECEMBER 15TH FOR FALL
PLANTING. PLANTS KNOWN AS FALL DIG HAZARDS SHALL BE DUG IN THE SPRING ONLY.
6.THE CONTRACTOR SHALL SUPPLY ALL NEW PLANT MATERIAL IN QUANTITIES
SUFFICIENT TO COMPLETE THE PLANTING SHOWN ON THE DRAWINGS.
7.IN GENERAL, PLANT SPECIES SUBSTITUTIONS WILL NOT BE ACCEPTED. IF SPECIFIED
MATERIAL IS NOT OBTAINABLE, CONTRACTOR SHALL SUBMIT PROOF OF
NON-AVAILABILITY ALONG WITH PROPOSED SUBSTITUTION. ANY PROPOSED
SUBSTITUTIONS OF PLANT SPECIES SHALL BE MADE WITH PLANTS OF EQUIVALENT
OVERALL FORM, HEIGHT, SIZE, BRANCHING HABIT, FLOWER, LEAF, COLOR, FRUIT AND
CULTURE, AND ONLY AFTER WRITTEN APPROVAL OF THE OWNERS REPRESENTATIVE.
8.THE OWNERS REPRESENTATIVE RETAINS THE RIGHT TO INSPECT TREES AND SHRUBS
FOR SIZE AND CONDITION OF BALLS AND ROOT SYSTEMS, INSECTS, INJURIES AND
LATENT DEFECTS, AND TO REJECT UNSATISFACTORY OR DEFECTIVE MATERIAL AT ANY
TIME DURING PROGRESS OF WORK. CONTRACTOR SHALL REMOVE REJECTED TREES
OR SHRUBS IMMEDIATELY FROM PROJECT SITE.
9.CONTRACTOR SHALL LOCATE AND VERIFY ALL EXISTING UTILITY LINES PRIOR TO
PLANTING AND SHALL REPORT ANY CONFLICTS TO THE OWNERS REPRESENTATIVE.
10.INSTALLED PLANTS SHALL BEAR THE SAME RELATIONSHIP TO PROPOSED GRADE AS
THEY BORE TO PREVIOUS GRADE. NO TREES SHALL BE PLANTED BEFORE ACCEPTANCE
OF ROUGH GRADING.
11.CONTRACTOR SHALL PROVIDE LONG LASTING, SLOW RELEASE STARTER FERTILIZER IN
EACH PLANTING PIT FOR TREES, SHRUBS AND PERENNIALS.
12.ALL PLANT BEDS SHALL RECEIVE THREE INCHES (3") OF SHREDDED BARK MULCH.
MULCH SHALL BE FREE FROM DELETERIOUS MATERIALS AND SUITABLE AS A TOP
DRESSING OF TREES AND SHRUBS, CONSISTING OF DOUBLE HAMMERED SHREDDED
BARK MULCH COMPRISED OF EITHER HARDWOOD OR SOFTWOOD SHREDDED BARK.
SHREDDED BARK MULCH SHALL NOT EXCEED 3" IN GREATEST DIMENSION, AND SHALL
BE DARK BROWN IN COLOR.
13.PLANTS SHALL BE DELIVERED ONLY AS THEY CAN BE INSTALLED IN REASONABLE TIME.
ALL PLANTS ARE SUBJECTED TO INSPECTION AT DELIVERY BY THE OWNER'S
REPRESENTATIVE.
14.IF DISCREPANCIES EXIST BETWEEN THE NUMBER OF PLANTS DRAWN ON THE PLANTING
PLAN AND THE NUMBER OF PLANTS IN THE PLANT LIST, THE PLANTING PLAN SHALL
GOVERN.
15.MAINTENANCE SHALL BEGIN IMMEDIATELY AFTER EACH PLANT IS PLANTED AND SHALL
CONTINUE FOR A MINIMUM 30-DAY MONITORING PERIOD AFTER NOTIFICATION OF
SUBSTANTIAL COMPLETION OF PLANTING, AND UNTIL FINAL ACCEPTANCE.
MAINTENANCE INCLUDES PRUNING, WEEDING, WATERING, FERTILIZATION, AND
RE-SEEDING AS NECESSARY.
16.PROTECT PLANTS FROM DAMAGE DUE TO LANDSCAPE OPERATIONS AND OPERATIONS
OF OTHER CONTRACTORS AND TRADES. MAINTAIN PROTECTION DURING INSTALLATION
AND MAINTENANCE PERIODS. TREAT, REPAIR, OR REPLACE DAMAGED PLANTINGS.
17.ACCEPTANCE STANDARDS:
17.1.PLANTS SHALL BE FREE OF FROST CRACKS; SUN SCALD; DAMAGE DUE TO INSECTS,
PESTS, AND DISEASE; STRUCTURAL DEFECTS; AND DAMAGE RESULTING FROM
MACHINERY OR TOOLS. ALL PLANTS REGARDLESS OF THE SEASON OF REVIEW
SHALL HAVE A MINIMUM OF 75 PERCENT HEALTHY, BALANCED BRANCHING
STRUCTURE WITH A HEALTHY TERMINAL LEADER(S) WITH VIABLE TERMINAL BUD(S).
TREES SHALL BE PLUMB AND SHOW NO SIGNS OF UNEVEN SETTLING OR LEANING.
17.2.LAWN AREAS SHALL HAVE A HEALTHY, UNIFORM STAND OF GRASS FREE OF
WEEDS, SURFACE IRREGULARITIES, WITH COVERAGE EXCEEDING 90% OVER ANY
10 SQ. FT. AND BARE SPOTS NOT EXCEEDING 5"X5"
18.CONTRACTOR SHALL REPLACE ALL PLANTS THAT ARE MORE THAN 25% DEAD OR, AS
DETERMINED BY THE OWNERS REPRESENTATIVE, ARE IN AN UNHEALTHY OR
UNSIGHTLY CONDITION. CONTRACTOR SHALL BEAR THE COST OF COMPLETE
REPLACEMENT(S). REPLACEMENTS SHALL BE OF THE SAME SIZE AND SPECIES AS
SPECIFIED ON THE PLANTING LIST.
19.GUARANTEE: CONTRACTOR SHALL GUARANTEE ALL PLANT MATERIAL TO REMAIN ALIVE
AND BE IN A HEALTHY, VIGOROUS CONDITION FOR A PERIOD OF ONE YEAR AFTER FINAL
ACCEPTANCE OF PLANTING WORK, AGAINST DEFECTS INCLUDING DEATH AND
UNSATISFACTORY WORK.
20.GRASS SEED SHALL BE FRESH, CLEAN, DRY, NEW-CROP SEED COMPLYING WITH
AOSA'S "RULES FOR TESTING SEEDS" FOR PURITY AND GERMINATION TOLERANCES.
PROVIDE SEED MIXTURE COMPOSED OF SPECIES, PROPORTIONS AND MINIMUM
PERCENTAGES OF PURITY, GERMINATION, AND MAXIMUM PERCENTAGE OF WEED
SEED, AS FOLLOWS:
PROPORTION GERMINATION PURITY
COMMON NAME BY WEIGHT MINIMUM MINIMUM
CREEPING RED FESCUE 50% 85%95%
OR CHEWINGS FESCUE
KENTUCKY BLUEGRASS 25% 85% 90%
PERENNIAL RYE 25%90%90%
21.PLANTING SOIL & TOPSOIL SHALL HAVE A SANDY LOAM, LOAMY SAND, OR LOAM
TEXTURE AS DETERMINED BY MECHANICAL ANALYSIS (ASTM 422) AND BASED ON THE
'USDA CLASSIFICATION SYSTEM' MAXIMUM CLAY CONTENT SHALL BE 10%. TOPSOIL
SHALL BE FERTILE, FRIABLE SOIL FREE OF STONES LARGER THAN ONE INCH IN ANY
DIRECTION, LUMPS, PLANTS AND THEIR ROOTS, DEBRIS AND OTHER EXTRANEOUS
MATTER AS DETERMINED BY THE OWNER'S REPRESENTATIVE, AND TOXIC MATTER
HARMFUL TO PLANT GROWTH,
PLANTING SOIL /TOPSOIL SPECIFICATION:
GRADATION:
SIEVE % PASSING BY WEIGHT CHEMICAL ANALYSIS
MIN. MAX.
#10 100 PH RANGE 5.2-7.0
#20 78 95 ORGANIC MATTER 4%-6%
#40 67 87 MAGNESIUM 35LB. PER AC
#60 48 78 PHOSPHORUS 75LB/AC
#100 40 75 POTASSIUM 85LB/AC
#200 28 63 SOLUBLE SALTS NOT TO EXCEED 500
#270 22 55 PPM
.002 2 7
PLANTING SCHEDULE:
SYM.QTY.BOTANICAL NAME COMMON NAME SIZE REMARKS/SPACING
SHRUBS
CS 13 Cornus sericea 'Artic Fire'DWARF RED TWIG DOGWOOD #3 3' O.C.
ORNAMENTAL GRASS
BG 25 Bouteloua gracilis 'Blonde Ambition'BLUE GRAMA GRASS PLUGS 24" O.C.
SC 61 Schizachyrium scoparium 'Blaze'LITTLE BLUESTEM PUGS 18" O.C.
1 SHRUB PLANTING
SCALE: NTS
2 GRASS PLANTING
SCALE: NTS
SPACE SHRUBS AS
INDICATED ON PLANS
3" BARK MULCH
SET CROWN FLUSH
WITH TOP OF MULCH
PLANT GRASSES IN
CONTINUOUS BED OF
SPECIFIED PLANTING
SOIL
COMPACTED /
UNDISTURBED SUBGRADE
3" DEPTH SHREDDED BARK
MULCH; PULL AWAY FROM
ROOT FLARE.
CUT AND REMOVE BURLAP
FROM TOP 1/3 OF ROOT
BALL
PLANT SHRUBS IN CONTINUOUS
BED OF SPECIFIED PLANTING
SOIL
UNDISTURBED SUBGRADE
ROOT FLARE SHALL BEAR
SAME RELATIONSHIP TO
FINISH GRADE AS IT BORE
TO PREVIOUS EXISTING
GRADE
12" MIN18
"
M
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6" MIN
12
"
M
I
N
1. PROVIDE INTEGRAL EMERGENCY BATTERY (14 WATT OR SIMILAR) FOR ALL FIXTURES WITH "E" EMERGENCY DESIGNATION
NOTES:
LIGHT FIXTURE SCHEDULE
TYPE MARK DESCRIPTION WATTS
(W)MANUFACTURER MODEL VOLTAGE MOUNTING SWITCH ID COMMENTS
X1 SURE-LITES EUX SERIES UNIVERSAL MOUNT 11 COOPER LIGHTING EUX7-1-R-WH MVOLT SURFACE AND
WALL
X2 Wavestream and 1-2 Light Squares 32 COOPER LIGHTING CCW LED UNV.SURFACE AND
WALL
X3 Wavestream and 1-2 Light Squares 32 COOPER LIGHTING CCW LED UNV.SURFACE AND
WALL
2 5/31/2024 CITY COMMENTS
2
2
2
355 Main Street | Suite 500 | Winooski, VT 05404 | w. eivtech.com
May 31, 2024
Marla Keene, PE
Development Review Planner
City of South Burlington
180 Market Street
South Burlington, VT 05403
Re: Burlington International Airport
Burlington School District’s Aviation Technical Center Project
Site Plan Application Response to Staff Comments for DRB 6/4/2024
Dear Marla Keene,
Thank you for your time to review our site plan application for the above reference project. In advance of the
Development Review Board meeting on June 4, 2024, we are providing a response to staff comments. Two plansheets
have been revised and resubmitted in response to these comments. These plansheets have cloud revision bubbles around
the proposed changes. The appropriate file naming convention (noting the revision date in the file name) has been made
and they have been uploaded to the ShareFile Site Plan Application submission folder.
The revised plansheets are referenced in the the response to comments below:
1. There is no safe pedestrian access to the building from Davinci Drive either existing or proposed, though
there is a sidewalk along Davinci Drive. Given the proposed use of the building for students, and the City’s
prioritization of personal mobility (ie biking and walking), Staff recommends the Board discuss with the
applicant how to improve access to the site for users that are not arriving in cars or buses.
Response: A walkway and crosswalk with signage have been added to the site plan (06_SP-01 - SITE
PLANS_REV20240531) to provide the requested pedestrian access from the recently constructed Da Vinci Drive
sidewalk.
2. Staff recommends the Board ask the applicant to demonstrate that the parking is the minimum necessary
and discuss whether they will allow this exemption for parking.
Response: The net increase in parking of 26 spaces is the minimum necessary for the school’s proposed operations.
355 Main Street | Suite 500 | Winooski, VT 05404 | w. eivtech.com
3. Staff recommends the Board ask the applicant to demonstrate that the proposed pavement is
minimized near the entrance to Davinci Drive. Too wide open a pavement area with multiple (four in
this case) non-perpendicular locations for cars to come from can lead to safety issues. The driveway at
the west end is narrow, so it does not appear this area is needed for large vehicle circulation.
Response: The pavement width in this area is necessary for the operations of the Beta loading docks. This is
an existing condition as that entrance was just paved last year as part of the Beta assembly plant project.
This widened pavement is also necessary for the school buses to make their turn movement from the bus
loading area onto Da Vinci Drive.
4. Staff recommends the Board ask the applicant to explain at what point the existing overhead
utilities will be located underground, and consider requiring the utilities to be located underground at
the upstream most pole that is impacted by the work.
Response: The existing power service to the building is currently underground from the adjacent transformer
and this transformer is powered via underground conduits to the pole near Da Vinci Drive. With the
installation of a new transformer this same underground configuration is being proposed as shown on the
Utility Site Plan.
5. Staff recommends the Board ask the applicant to verbally answer the questions of the Director
of Public Works and include conditions for any necessary modifications.
●The applicant will need to work with the wastewater superintendent to confirm that the project
has a sufficient wastewater allocation for the change in use. Response: A coordination meeting
was held with the water & sewer department after the submission of our Water & Sewer Engineers
report to the City, which resulted in the issuance of an Ability To Serve letter by the water district and
verbal concurrence for wastewater. The Ability To Serve letteris included in our application.
●The wastewater pump station will remain privately owned. Response: Correct
●Does the property have an existing oil / water / grease / grit separator? Will the change in use
require that one be installed? Response: An existing oil/water separator exists for the current floor
drains and will be rehabilitated or replaced as part of the proposed project. The proposed kitchenette
area will be for warming food only, and no food preparation will occur onsite. Therefore a grease
trap is not required.
●Are any water (or other) easements proposed to be transferred to the City? Response: No
6. The applicant is proposing an on-grade striped pathway from the parking area to the building.
Staff recommends the Board consider requiring the pathway to be raised by a curb and consider
requiring a sidewalk connection and crosswalk to Davinci Drive, as alluded to above.
Response: See response to #1 above. A raised walkway was not proposed as stormwater runoff from traverses
across the pavement to the existing closed drainage systems.
355 Main Street | Suite 500 | Winooski, VT 05404 | w. eivtech.com
7. The building is 34,445 sf and is proposed to be used by 12 employees and 100 students. One
short term space is required for each 20 students of planned capacity, or five spaces. It does not
appear the applicant has proposed any bicycle parking. Staff recommends the Board require the
applicant to add short term bicycle parking to the plan proximate to a student entrance.
Response: The project is proposing 8 bike spaces as shown on drawing SP-02. These are covered spaces
with a bike rack. The project is also planning for 2 interior bike lockers as well.
8. No parking lot landscaping is proposed. Staff recommends the Board require the applicant
to revise their plans to provide landscaping to screen the proposed and reconfigured parking from
the future public street.
Response: The landscaping plan, drawing LL-02 (14_LL-02 - LIGHTING & LANDSCAPING
PLAN_REV 20240531) has been revised to include additional plantings around the existing parking lot
that will be expanded. The locations for proposed plantings are limited due to the slopes between
DaVinci Drive and the parking area.
9. Staff recommends the Board require the applicant to demonstrate compliance with this
criterion by providing a figure showing the parking area and the fraction landscaped.
(2) In all parking areas containing twenty-eight (28) or more contiguous parking spaces and/or
in parking lots with more than a single circulation lane, at least ten percent (10%) of the interior
of the parking lot shall be landscaped islands planted with trees, shrubs and other plants. Such
requirement shall not apply to structured parking or below ground parking.
Response: Although the parking area has more than 28 spaces, it is a single drive isle with no
opportunities for internal landscape areas. In response to these comments, additional landscaping is
proposed around the parking lot as described in the response to #8 above.
10. No curbing is proposed. Staff considers curbing will be required to protect adjacent
landscaping except where the adjacent area is specifically designed as a stormwater collection or
treatment area.
Response: Curbing is proposed along the frontage of the building as well as on the Da Vinci Road side of
the parking lot expansion area. Curbing is intentionally not proposed between the proposed work area
and the GA Hangar pavement areas because it would restrict the current stormwater runoff from this area
into the existing closed drainage system. The proposed work includes a stone line channel to direct the
runoff to the proposed bioretention basin for treatment prior to entering the existing drainage system.
11. While Staff considers the proposed plantings to not be sufficient replacement for the removed
trees, as described above, the applicant must also provide parking lot landscaping, including shade
trees. Staff considers the combined resulting planting likely to be adequate to replace the removed
trees, and recommends the Board confirm once the proposed parking lot planting plan is complete.
Response: Additional plantings have been added, please refer to the response to #8 above.
355 Main Street | Suite 500 | Winooski, VT 05404 | w. eivtech.com
12. Staff recommends the Board provide Staff an opportunity to provide an update at the time of the hearing.
(related to any stormwater comments, none received to date)
Response: No response required at this time, we had a pre-application meeting with the stormwater department and can
answer any additional comments they may have.
13. Staff recommends the Board require the applicant to demonstrate submission of an application for
Determination of No Hazard, and condition the approval on receipt of an issued determination. (Development
within the Airport Approach Cones)
Response: This is not applicable as it is only required for new or expanded buildings. This is an existing buildings and
submission of a FAA 7460 airspace analysis review is not required.
14. Staff notes there is one “hotspot” of 15 footcandles near the eastern entrance of the building and recommends
the Board discuss whether to direct the applicant to reconfigure the proposed lighting to reduce this hotspot to on
the order of 8 – 10 footcandles.
Response: This is the result of three closely spaced man doors with lights over each door, the center man door light has
been removed to reduce the light intensity in this isolated area to less than 10 footcandles. Please see the revised
drawing LL-02 (14_LL-02 - LIGHTING & LANDSCAPING PLAN_REV 20240531).
15. Screening is proposed for the proposed generator but not for the proposed utility transformer. Staff
recommends the Board ask the applicant to describe the proposed height of the generator in order to determine if
screening is adequate.
Response: At this time the generator is expected to be roughly 8-9’ in height based on preliminary sizing. The proposed
plantings will partially screen the generator.
16. Staff recommends the Board require the applicant to provide screening of sufficient height to screen the
transformer from the street.
Response: Additional plantings have been added between the transformer and the sidewalk as screening as shown on the
revised drawing LL-02 (14_LL-02 - LIGHTING & LANDSCAPING PLAN_REV 20240531). We would propose
grasses similar to what is proposed in front of the generator. These would provide a partial screening to the height of the
transform (estimated to be 5-6’ in height) but would also still allow access to the transformer for maintenance &
inspections.
We appreciate your time to review and receive our response to staff comments in advance of the Development Review
Board meeting on June 4, 2024. Feel free to contact Larry Lackey, or Jacqueline Dagesse at EIV, with any questions
regarding this submission, 802-324-5522.
Very Respectfully,
EIV Technical Services
Jacqueline Dagesse, MBA, CPESC
President / Environmental Engineer
E
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P
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P
O
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A
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A
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F
A
R
O
F
A
R
O
F
A
R
O
F
A
R
O
F
A
R
O
F
A
R
O
F
A
R
O
F
A
ROF
A
R
O
F
A
R
O
F
A
R
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F
A
R
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F
A
R
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F
A
R
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F
A
R
O
F
A
R
O
F
A
R
O
F
A
R
O
F
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
RS
A
TS
A
NA
T
I
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A
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APPROXIMATE
ZONING BOUNDARY
AIRPORT ZONING DISTRICT
AIRPORT INDUSTRIAL
ZONING DISTRICT
WI
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A
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P
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D
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PROPOSED AVIATION
TECH CENTER LOCATION
BETA LEASE BOUNDARYEXISTING UTILITY EASEMENT
1
1
MIXED INDUSTRIAL &
COMMERCIAL ZONING 1
CL
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DRAWN
DESIGNED
CHECKED
SCALE
DATE
PROJECT
NO.DATE DESCRIPTION
DRAWING TITLE
DRAWING NUMBER
PROJECT MILESTONE
K:
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NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
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OVERALL SKETCH
PLAN
1"=80'
----
AJF
AJF
18715.02
03/01/2024
SL-01
PERMIT SET
SCALE
0 450 900 1350 FT
LEGEND:
LONG TERM EASEMENTS AND
RIGHT OF WAYS
AIRPORT PARCEL
PROPOSED WORK AREA
ZONING LINE
BETA PUD BOUNDARY
BETA LEASE BOUNDARY
1 4/10/2024 CITY COMMENTS
S
S
D
D
D
D
FDFDFDFDFD
FD
FD
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FD
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8"
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14"M
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CO
N
C
.
W
A
L
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FM
FM
FM
SD
SD
SD
FM
FM
FM
F
M
F
M
F
M
F
M
F
M
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM FM FM
GATE
10"A
P
P
L
E
EXISTING
RETENTION BASIN
EXISTING
HANGER
BUILDING
EXISTING
HANGER
BUILDING
EXISTING HANGER BUILDING
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
EXISTING
VERMONT
FLIGHT
ACADEMY
BUILDING
BETA
TECHNOLOGIES
BUILDING
MILLINGS GRAVEL AREA
ASPHALT
PARKING AREA
ASPHALT P
A
V
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M
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N
T
L
I
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EXISTING
CONCRETE
PAD
EXISTING
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44
'
12
4
'
23'
23
.
5
'
25'
EXISTING DUMPSTER
ENCLOSURE FENCE
EXISTING
ASPHALT
EXISTING HYDRANT
EXISTING GATE
CARD READER
RETAINING WALL
WITH HANDRAIL
PUMP STATION PANEL
EXISTING SANITARY PUMP STATION
EXISTING ELECTRIC TRANSFORMER
EXISTING 8-10" DIA. TREE
(TYP.OF 4)
VERMONT FLIGHT
ACADEMY LEASE LINE
BETA TECHNOLOGIES
LEASE LINE
ZONING BOUNDARY
EXISTING SITE
LIGHT TYP.
EXISTING SECURITY GATE
ASPHALT PAVEMENT LIMITS
1 NEW PLAN SHEET TO PROVIDE
SEPARATE EXISTING CONDITIONS PLAN
CL
I
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N
T
:
PR
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T
:
DRAWN
DESIGNED
CHECKED
SCALE
DATE
PROJECT
NO.DATE DESCRIPTION
DRAWING TITLE
DRAWING NUMBER
PROJECT MILESTONE
K:
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NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
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0 20 40 60 FT
LEGEND:
EXISTING BUILDINGS
EXISTING GRAVEL AREA
EXISTING SECURITY FENCE
EXISTING UTILITY POLES
EXISTING DRAINAGE STRUCTURES
EXISTING STORM DRAINAGE STRUCTURES
EXISTING PARKING LOT LIGHT FIXTURES
EXISTING SEWER STRUCTURES
EXISTING OVERHEAD ELECTRICAL WIRES
EXISTING LEASE LINES
D
S
EXISTING CONDITIONS
PLAN
1"=20'
DEL
AJF
AJF
18715.02
03/01/2024
EX-01A
PERMIT SET
1 5/28/2024 CITY COMMENTS
UE
UE
UE
UE
UE
UE
UE
20
'
5'
5' WIDE
CONCRETE WALK
PROPOSED 35.55'X10'
ENTRANCE CANOPY
EXISTING DUMPSTER/COMPOST
RECYCLING ENCLOSURE
LEVEL 2 EV
CHARGING
STATION
(2 PORTS)
PROPOSED BOLLARD
(TYP.OF 4)
8' HIGH CHAINLINK FENCE WITH VINYL SLAT
WITH 16' WIDE MANUEL SWING GATE
EXISTING ASPHALT
PAVEMENT SLOPE TO
BE MODIFIED
PROPOSED FRONT
CONCRETE ENTRANCE
AREA (471 SF)
BIKE RACKS - 8 PROPOSED COVERED BIKE SPACES
EXISTING LOADING DOCK
WALL WITH HANDRAIL
TO REMAIN
PROPOSED LAWN AREA
NO PARKING SIGN
SIDEWALK CURB
RAMP (TYP.)
6" CONCRETE CURB
10'
PROPOSED EMERGENCY
GENERATOR PAD (16' X 5')
PROPOSED TRANSFORMER VAULT PAD
(SEE ELECTRICAL PLANS)
(12.5' X 7')
5'
5'
BETA INSTALLED SITE LIGHT
DETECTABLE WARNING STRIPS (TYP)
SIDEWALK RAMP (TYP)
ADA PARKING SIGN
ADA PARKING SIGN
BETA INSTALLED SITE LIGHT
PROPOSED BOLLARD
DETECTABLE WARNING UNITS (TYP)
DETECTABLE WARNING
UNITS (TYP)
PROPOSED OVERHEAD DOOR
OVERHEAD DOORWAY BOLLARDS (TYP. OF 6)
EXISTING OVERHEAD DOOR
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
27
.
7
1
'
GAS METER
PROPOSED WHEEL STOPS
BEGIN FLUSH CURB
PROPOSED LANDSCAPING AREA
(SEE DRAWING LL-01)
MAIN ENTRANCE
2'
1'
PROPOSED 6"
CONCRETE CURB
CL
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NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
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SCALE
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BLDG PLAN
1"=5'
DEL
AJF
AJF
18715.02
03/01/2024
SP-02
PERMIT SET
LEGEND
PROPOSED HYDRANT
LEASE LINES
PROPOSED PAVEMENT
REHABILITATION
PROPOSED FULL DEPTH PAVEMENT
PROPOSED LAWN AREA'S
PROPOSED PEDESTRIAN WALKWAY
MANDOOR
OVERHEAD DOOR
BOLLARD
S
S
D
D
D
D
FDFDFDFDFD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FD
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D
D
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FD
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8"
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P
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(
2
)
VEN
T
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14"M
A
P
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E
CO
N
C
.
W
A
L
K
SD
SD
SD
GATE
10"A
P
P
L
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EXISTING
RETENTION BASIN
EXISTING
HANGER
BUILDING
EXISTING
HANGER
BUILDING
EXISTING HANGER BUILDING
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
EXISTING
VERMONT
FLIGHT
ACADEMY
BUILDING
BETA
TECHNOLOGIES
BUILDING
ADJUST RIM TO ±313.5
BETA SAND FILTER SYSTEM
FFE=318'
PROPOSED BIO
RETENTION AREA
EXISTING DMH98: 48" Ø
RIM ELEV = 316.50'
EXISTING DMH109: 48" Ø
RIM ELEV = 319.05'
EXISTING CB43: 60" Ø
RIM ELEV = 316.50
TC=317.90'
BC=317.90'
CURRENT DRIVEWAY
RECENTLY INSTALLED
BY BETA TO REMAIN
W
W
G G G
UE
EXISTING SD-142
RIM: 315.89
INV IN: 303.48 (15")
INV IN: 304.20 (15")
INV OUT: 306.02 (15")
PROPOSED D-1
RIM: 312.55
INV OUT: 307.38 (15")
EXISTING CB-63
RIM: 310.60
INV IN: 304.20 (15")
INV OUT: 304.20 (15")
EXISTING CB-66
RIM: 310.19
INV OUT: 304.58 (15")
312
3
1
3
315
31
2
3
1
2
312
31
3
314 316 317
318
317
TC=317.90
BC=317.40
TC=317.90
BC=317.40
317.33
317.09
317.10
317.40
317.54
320.49
319.00
317.84
314.50
313.00
312.90
313.76
313.15
312.57
311.67
314.00
316.00
315.50
TC=317.40
BC=317.40
MATCH EXISTING
MATCH EXISTING
MATCH EXISTING ASPHALT
CONCRETE PAD
ELEV. 318.00
GENERATOR PAD
ELEV. 318.00
TRANSFORMER PAD
ELEV. 318.00
318.00 MATCH EXISTING
317.00 MATCH EXISTING
12" THICK RIP RAP LINING
TC=317.70
BC=317.90
BEGIN RETAINING WALL
END RETAINING
WALL (43.5 LF)
79.4
8
'
MIN. DISTANCE TO EXISTING
WETLAND TOP OF BANK
1
CL
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PR
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:
DRAWN
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SCALE
DATE
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NO.DATE DESCRIPTION
DRAWING TITLE
DRAWING NUMBER
PROJECT MILESTONE
K:
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-
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NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
R
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SCALE
0 20 40 60 FT
LEGEND
EXISTING CONTOUR
PROPOSED CONTOUR
GRADING LIMITS
EXISTING CATCH BASIN
EXISTING DRAINAGE MANHOLE
EXISTING DRAINAGE PIPE
PAVEMENT RESURFACING AREA
PROPOSED DRAINAGE PIPE
SPOT ELEVATIONS (EXISTING/PROPOSED)
799
D
GRADING & DRAINAGE
1"=20'
JES
AJF
AJF
18715.02
03/01/2024
GR-01
PERMIT SET
1 4/10/2024 CITY COMMENTS
315.4/
S
S
D
D
D
D
FDFDFDFDFD
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FM
FM
FM
FM
FM
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F
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F
M
F
M
F
M
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM FM FM
GATE W
W
G G G
UE
EXISTING BETA SITE
LIGHT POLE, TYP.
EXISTING UTILITY
POLE TO REMAIN
EXISTING UTILITY
POLE TO REMAIN
EXISTING STORM CATCH
BASIN TO REMAIN
EXISTING STORM CATCH
BASIN TO REMAIN
EXISTING BIO
RETENTION BASIN
EXISTING STORM CATCH
BASIN TO REMAIN
RELOCATE FIRE
HYDRANT CAP EXISTING
HYDRANT LATERAL
EXISTING SANITARY PUMP
STATION TO REMAIN & BE
REFURBISHED
EXISTING TRANSFORMER
TO BE REMOVED
EXISTING WATER
SERVICE TO REMAIN
(8" DI PIPE)
SANITARY FORCEMAIN
TO REMAIN (2" SCH 80 PVC)
EXISTING
HANGER
BUILDING
EXISTING
HANGER
BUILDING
EXISTING HANGER BUILDING
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
EXISTING
VERMONT
FLIGHT
ACADEMY
BUILDING
BETA
TECHNOLOGIES
BUILDING
EXISTING SANITARY FORCE
MAIN BELIEVED TO BE
ABANDONED
24' X 5' HVAC PAD AREA
NEW PUMP STATION
CONTROL PANEL
PROPOSED DRAINAGE
INLET & PIPE
12.5'
PROPOSED EMERGENCY
GENERATOR
(SEE ELECTRICAL PLANS)
EXISTING WATER SERVICE TO REMAIN
(SEE PLUMBING PLANS)
PROPOSED TRANSFORMER
(SEE ELECTRICAL PLANS)
RELOCATED 2" GAS SERVICE
(SEE BUILDING PLANS)
RELOCATED FIRE HYDRANT
NEW TAPPING SLEEVE & VALVE
ON EXISTING 8" DI WATER LINE
UNDERGROUND ELECTRICAL
SERVICE TO EV CHARGING STATION
(SEE ELECTRICAL PLANS)
WINTER SERVICE ROOM
ELECTRICAL
SERVICE ROOM
CL
I
E
N
T
:
PR
O
J
E
C
T
:
DRAWN
DESIGNED
CHECKED
SCALE
DATE
PROJECT
NO.DATE DESCRIPTION
DRAWING TITLE
DRAWING NUMBER
PROJECT MILESTONE
K:
\
B
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I
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1
8
7
1
5
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0
2
A
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I
A
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I
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H
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I
C
A
L
D
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S
I
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N
\
D
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A
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\
D
R
A
W
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S
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1
8
7
1
5
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0
2
-
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T
I
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D
W
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NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
R
L
I
N
G
T
O
N
A
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I
A
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N
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C
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I
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A
L
C
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T
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R
20
0
D
A
V
I
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C
I
D
R
I
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,
S
O
U
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B
U
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V
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0
5
4
0
3
BU
R
L
I
N
G
T
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S
C
H
O
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L
D
I
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T
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BU
R
L
I
N
G
T
O
N
,
V
E
R
M
O
N
T
SCALE
0 20 40 60 FT
LEGEND
EXISTING CATCH BASIN
EXISTING DRAINAGE MANHOLE
EXISTING DRAINAGE PIPE
EXISTING/PROPOSED HYDRANT
FORCE MAIN
WATER
OVERHEAD ELECTRICAL WIRES
UNDERGROUND ELECTRICAL WIRES
EXISTING LIGHT POLES
D
FM
UE
UTILITY PLANS
1"=20'
DEL
AJF
AJF
18715.02
03/01/2024
UT-01
PERMIT SET
S
S
D
D
D
D
FDFDFDFDFD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FDFDFD
D
D
D
FD
FD
FD
FD
FDFD
FD
FDFDFD
8"
ø
G
T
S
8"
ø
G
T
R
4"PO
P
L
A
R
(
2
)
VEN
T
P
I
P
E
10"A
P
P
L
E
14"M
A
P
L
E
CO
N
C
.
W
A
L
K
FM
FM
FM
SD
SD
SD
FM
FM
FM
F
M
F
M
F
M
F
M
F
M
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM FM FM
GATE W
W
G G G
UE
EXISTING
RETENTION BASIN
EXISTING
HANGER
BUILDING
EXISTING
HANGER
BUILDING
EXISTING HANGER BUILDING
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
EXISTING
VERMONT
FLIGHT
ACADEMY
BUILDING
BETA
TECHNOLOGIES
BUILDING
ADJUST RIM TO ±313.5
RIM INV.
BETA SAND FILTER SYSTEM
FFE=318'
CONCRETE WASHOUT AREA
312.00
EXISTING SD-142
RIM: 315.89
INV IN: 303.48 (15")
INV IN: 304.20 (15")
INV OUT: 306.02 (15")
PROPOSED D-1
RIM: 312.55
INV OUT: 307.38 (15")
EXISTING CB-63
RIM: 310.60
INV IN: 304.20 (15")
INV OUT: 304.20 (15")
EXISTING CB-66
RIM: 310.19
INV OUT: 304.58 (15")
314.69
315.04
315.40
314.50
313.62
316.00314.00
313.00
312.50
312.00
313.00311.67
313.75
313.15
312.72
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SF
IP
IP
IP
316
317
318
319
315
31
2
31
3
314
3
1
2
3
1
3
317
3
1
2
IP
SF SF SF
PROPOSED SILT FENCE
SITE DEMARCATION FENCE
SITE DEMARCATION FENCE
SITE DEMARCATION
FENCE
CL
I
E
N
T
:
PR
O
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C
T
:
DRAWN
DESIGNED
CHECKED
SCALE
DATE
PROJECT
NO.DATE DESCRIPTION
DRAWING TITLE
DRAWING NUMBER
PROJECT MILESTONE
K:
\
B
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1
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.
0
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-
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R
O
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.
D
W
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NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
R
L
I
N
G
T
O
N
A
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I
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20
0
D
A
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C
I
D
R
I
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E
,
S
O
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B
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V
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0
5
4
0
3
BU
R
L
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S
C
H
O
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D
I
S
T
R
I
C
T
BU
R
L
I
N
G
T
O
N
,
V
E
R
M
O
N
T
SCALE
0 20 40 60 FT
LEGEND
EXISTING CONTOUR
PROPOSED CONTOUR
GRADING LIMITS
EXISTING CATCH BASIN
EXISTING DRAINAGE MANHOLE
EXISTING DRAINAGE PIPE
INLET PROTECTION
799
D
IP
EROSION PREVENTION
& SEDIMENTATION
CONTROL
1"=20'
JES
AJF
AJF
18715.02
03/01/2024
EPSC-01
PERMIT SET
S
S
D
D
FD
FDFDFDFDFD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FD
FDFDFDFD
D
D
D
FD
FD
FD
FD
FDFD
FD
FDFDFD
8"
ø
G
T
S
8"
ø
G
T
R
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM
FM FM FMEXISTING
HANGER
BUILDING
PROPOSED
BSD AVIATION
TECHNICAL CENTER
(REHABILITATION OF
EXISTING HANGER
BUILDING)
BETA
TECHNOLOGIES
BUILDING
EXISTING BETA SITE
LIGHT POLE, TYP.
EXISTING TREE TYP.
5.3
4.2
2.8
5.8
5.6
4.4
3.0
1.9
4.4
5.0
4.7
3.8
2.6
1.7
1.1
3.3
3.6
3.7
3.5
2.9
2.1
1.4
3.8
3.2
2.9
2.7
2.4
2.0
1.5
5.5
4.2
3.1
2.4
2.0
1.7
1.4
6.6
6.4
5.4
4.0
2.9
2.1
1.6
1.3
5.7
5.5
5.3
4.5
3.4
2.4
1.7
4.0
3.7
3.2
2.5
1.8
2.4
2.1
1.71.4
3.72.8
4.7
3.9
1.6
2.7
7.6
12.8
5.8
0.8
0.7
1.7
4.5
8.8
10.0
1.6
0.5
0.4
0.4
0.4
0.8
1.9
4.7
4.9
1.7
0.8
0.2
0.2
0.2
0.2
0.3
0.4
0.8
1.5
1.7
1.2
0.9
0.1
0.1
0.1
0.1
0.2
0.2
0.3
0.5
0.7
0.9
1.0
1.5
2.3
0.1
0.1
0.1
0.1
0.2
0.2
0.3
0.5
0.7
1.2
2.8
8.0
11.6
0.1
0.1
0.1
0.2
0.2
0.3
0.4
0.7
1.2
3.0
9.9
18.3
15.7
0.1
0.1
0.1
0.2
0.3
0.4
0.6
1.1
2.3
5.3
13.7
15.6
10.6
0.1
0.1
0.2
0.2
0.4
0.6
1.0
1.7
3.4
6.5
8.7
8.2
6.0
0.1
0.1
0.2
0.3
0.5
0.8
1.3
2.2
3.5
4.7
4.8
3.8
2.5
0.1
0.1
0.2
0.2
0.4
0.6
0.9
1.4
2.0
2.5
2.6
2.2
1.7
1.4
0.1
0.1
0.2
0.3
0.4
0.6
0.9
1.2
1.4
1.5
1.4
1.3
1.3
0.1
0.2
0.2
0.3
0.4
0.6
0.7
0.9
0.9
1.0
1.2
1.5
2.2
0.1
0.2
0.2
0.3
0.4
0.5
0.6
0.7
0.9
1.2
1.9
3.1
5.1
0.1
0.2
0.2
0.3
0.3
0.4
0.6
0.8
1.3
2.1
3.9
6.8
9.9
0.1
0.2
0.2
0.3
0.4
0.5
0.7
1.2
2.1
3.9
6.8
9.9
10.3
0.1
0.2
0.2
0.3
0.4
0.7
1.1
1.8
3.1
5.1
7.0
7.3
6.1
0.1
0.2
0.2
0.3
0.5
0.8
1.4
2.1
3.2
4.1
4.3
0.1
0.2
0.3
0.4
0.6
0.9
1.4
1.8
2.3
0.1
0.2
0.2
0.3
0.4
0.6
0.9
1.1
0.1
0.2
0.2
0.3
0.4
0.1
0.2
0.20.1
0.30.8
0.5
0.4
0.7
2.0
1.6
1.2
0.9
0.6
1.3
1.1
1.0
0.8
2.9
2.7
2.2
1.8
1.4
1.0
0.7
1.8
1.8
1.7
1.5
1.2
0.9
2.4
3.0
3.7
3.4
3.0
2.5
2.0
1.5
1.0
0.7
2.4
2.5
2.6
2.5
2.3
1.9
1.3
2.6
3.3
3.6
4.2
4.2
3.6
3.2
2.6
2.0
1.5
1.1
2.8
3.1
3.3
3.7
3.8
3.6
2.9
1.8
1.1
3.7
4.9
4.1
3.9
3.8
3.6
3.2
2.7
2.1
1.6
1.4
3.1
3.6
4.0
4.2
5.0
5.7
5.6
3.9
2.4
1.4
0.8
0.6
4.3
4.5
3.9
3.8
3.8
3.6
3.2
2.7
2.2
1.9
1.9
3.4
4.1
4.7
4.9
5.2
6.3
8.0
7.2
4.9
2.9
1.7
1.0
3.7
4.5
4.3
4.5
4.1
4.0
3.7
3.2
2.8
2.6
2.8
3.9
4.4
5.0
5.6
5.6
6.7
7.8
8.8
7.8
5.7
3.5
3.6
5.2
4.8
4.2
4.3
4.3
3.9
3.5
3.5
3.7
4.0
4.4
4.8
5.2
5.5
5.7
7.0
7.3
8.2
8.1
7.5
5.6
3.6
4.5
4.5
4.5
4.9
4.5
4.3
4.4
4.6
4.9
5.2
5.8
6.1
6.2
6.6
6.8
3.6
6.8
6.3
5.7
3.9
4.9
4.9
4.8
4.8
4.8
5.0
5.4
5.6
6.1
7.4
8.3
8.3
7.3
6.6
5.6
3.3
4.3
5.1
4.6
4.4
4.9
5.5
6.0
6.2
7.1
9.3
11.5
11.2
8.0
5.5
4.1
4.4
4.4
4.5
5.2
5.9
6.5
6.8
8.9
14.2
15.0
11.1
7.6
5.2
4.1
5.0
5.4
5.9
6.2
8.4
14.7
22.0
15.8
8.7
4.7
5.0
4.8
5.9
8.5
15.7
19.0
7.8
4.0
4.2
4.9
5.9
6.2
5.0
3.6
3.8
3.3
3.0
FL1 FL1
FL1
FL1
WP1
WP1
FL1 FL1WP1
CL
I
E
N
T
:
PR
O
J
E
C
T
:
DRAWN
DESIGNED
CHECKED
SCALE
DATE
PROJECT
NO.DATE DESCRIPTION
DRAWING TITLE
DRAWING NUMBER
PROJECT MILESTONE
K:
\
B
U
R
L
I
N
G
T
O
N
I
N
T
E
R
N
A
T
I
O
N
A
L
A
I
R
P
O
R
T
\
T
-
1
8
7
1
5
.
0
2
A
V
I
A
T
I
O
N
T
E
C
H
N
I
C
A
L
D
E
S
I
G
N
\
D
R
A
W
\
D
R
A
W
I
N
G
S
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S
H
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T
F
I
L
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S
\
1
8
7
1
5
.
0
2
-
L
I
G
H
T
I
N
G
-
E
.
D
W
G
NOT FOR
CONSTRUCTION
426 INDUSTRIAL AVENUE, SUITE 146
WILLISTON, VT 05495
P: (802)862-9381
WWW.MJINC.COM
81 Maple Street▪ Burlington VT 05401
802▪864▪6844▪ www.fffinc.com
Architecture▪ Planning▪ Interiors
BU
R
L
I
N
G
T
O
N
A
V
I
A
T
I
O
N
T
E
C
H
N
I
C
A
L
C
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T
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R
20
0
D
A
V
I
N
C
I
D
R
I
V
E
,
S
O
U
T
H
B
U
R
L
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N
G
T
O
N
,
V
T
0
5
4
0
3
BU
R
L
I
N
G
T
O
N
S
C
H
O
O
L
D
I
S
T
R
I
C
T
BU
R
L
I
N
G
T
O
N
,
V
E
R
M
O
N
T
SCALE
0 20 40 60 FT
LEGEND
EXISTING SITE
LIGHT POLES
EXISTING BUILDING
MOUNTED LIGHTS
EXISTING TREES
EXISTING LIGHTING &
LANDSCAPING
----
----
AJF
AJF
18715.02
03/01/2024
LL-01
PERMIT SET
FL1/WP1
Luminaire Schedule
Symbol Qty Label Arrangement Total Lamp Lumens LLF Description Lum. Watts
4 Exist Pole SINGLE N.A.0.950 GALN-SA6A-740-U-T4W 182
6 EX FL1 SINGLE 8522640 1.000 EXISTING FLOOD LIGHT 75
3 EX WP1 SINGLE N.A.1.000 EXISTING WALL PACK 40