HomeMy WebLinkAboutresolution.council.059-10RESOLUTION # 5 °~
(Series of 2010)
A RESOLUTION APPROVING CHANGES TO THE CITY OF ASPEN
CONSTRUCTION MANAGEMENT MANUAL APPROVING 24 HOUR
CONSTRUCTIONACTIVITIES AND OFFSEASON CONSTRUCTION
HOURS AND AUTHORIZING THE CITY ENGINEER TO EXECUTE SAID
CHANGES
WHEREAS, there has been submitted to the City Council a draft of
proposed changes to the City of Aspen Construction Management Plan
Manual a copy of which is attached.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF
THE CITY OF ASPEN, COLORADO:
Section 1
That the City Council of the City of Aspen hereby approves that City
of Aspen Engineering Department executes changes to the Construction
Management Plan Manual a copy of which is incorporated herein, and does
hereby authorize the City Engineer of the City of Aspen to execute said
changes on behalf of the City of Aspen.
Dated: ~ ~O
;~ ~' ~
~'
Michael C. Ireland, Mayor
I, Kathryn S. Koch, duly appointed and acting City Clerk do certify
that the foregoing is a true and accurate copy of that resolution adopted by
the City Council of the City of Aspen, Colorado, at a meeting held August
9th, 2010.
Kat n S. Koch, City Cle
THE CITY OF ASPEN
CONSTRUCTION MANAGEMENT PLAN
REQUIREMENTS MANUAL
Construction projects that exceed 1000 SF of soil disturbance and/or 400 SF of building demolition,
improvement, or renovation (interior and/or exterior) must submit a construction management plan in
accordance with this manual.
Prepared by:
Engineering Asset Management Department
130 S. Galena St.
Aspen CO 81611
970.920.5080
August 2010
Please provide:
2 Paper Documents -Engineering Department
1 Electronic Document-EngineerCity@ci.aspen.co.us
Specifics: 8.5 x 11 or 11x17 sheets only & 2-hole punch
Revised 8/11/10
City of Aspen
TABLE OF CONTENTS
I.0 GENERAL
1.1 PURPOSE
1.2 APPLICABILITY
1.3 DEFINITIONS AND TERMS
1.4 REFERENCES
2.0 PROJECT INTRODUCTION
2.1 DISTURBANCE AREA
2.2 LOCATION
2.3 DESCRIPTION
3.0 PROJECT DOCUMENTATION
3.1 PERMITS /OTHER DOCUMENTS
3.2 PUBLIC NOTIFICATION
3.3 PROJECT SIGN
3.4 CONTACT DESIGNATION
4.0 PROJECT IMPLEMENATION
4.1 DATES OF CONSTRUCTION
4.2 HOURS OF CONSTRUCTION
4.3 SEQUENCE (PHASING) OF CONSTRUCTION
4.4 ADJOINING PROPERTY OWNERS
4.5 PROJECT FENCING
4.6 PUBLIC HEALTH AND WELFARE
4.7 NATURAL ENVIRONMENT
5.0 PARKING MANAGEMENT
5.1 PARKING MANGEMENT FORM
5.2 EMERGENCY VEHICLE ACCESS AND ORDINANCE 35
5.3 CONSTRUCTION PARKING DETAILS
5.4 STAGING AREAS
5.5 CONSTRUCTION TRAILER, MATERIALS STORAGE, AND WASTE
MANAGEMENT
6.0 TRAFFIC CONTROL
6.1 GENERAL
6.2 HAUL ROUTES
6.3 ONSITE VEHICLE LIMITATIONS
6.4 DELIVERY REQUIREMENTS
6.5 TRAFFIC CONTROL PLAN
7.0 PEDESTRIAN PROTECTION
7.1 GENERAL
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8.0 SEDIMENT AND EROSION CONTROL
8.1 REQUIREMENTS
8.2 SMUGGLER MOUNTIAN RESTRICTIONS
9.0 FUGITIVE DUST CONTROL
9.1 FUGITIVE DUST CONTROL PLAN
9.2 REQUIREMENTS
10.0 EMISSIONS
10.1 GENERAL
10.2 EMISSIONS FROM DIESEL POWERED ENGINES
City of Aspen
11.0 NOISE SUPRESSION
11.1 GENERAL
11.2 NOISE SUPPRESSION PLAN
11.3 REQUIREMENTS
11.4 SPECIFIC RESTRICTIONS RELATED TO MANUFACTURING ON SITE
12.0 ENFORCEMENT
12.1 CONSTRUCTION MITIGATION OFFICER
12.2 CORRECTIVE ACTION
12.3 INSPECTION REPORTS
APPENDICES
A -Required Project Sign
B -Parking Management Form
C -Haul Route Map
D -Noise Suppression Plan, Techniques and Equipment
E -Smuggler Mountain Superfund Site Map
F -Central Resort Area Man
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City of Aspen
1.0 GENERAL
1.1 PURPOSE
The purpose of this Construction Management Plan Manual is to provide a consistent
policy under which certain physical aspects of construction management will be
implemented. The elements contained in this document are related to the development
process. It is intended that they apply to both public and private work designated
herein.
These standazds cannot anticipate all situations. They are intended to assist, but not to
substitute for competent work by design and construction professionals. The City of
Aspen does not intend to limit any innovative or creative efforts that could result in
better quality, greater cost savings, or both. Any proposed departure from the manual
will be judged on the likelihood that such variance will produce a comparable result,
adequate for the user and City resident over the duration of the improvement/project.
If the project changes ownership or contracting services change, the City Engineering
Department must be notified, and must agree to comply with an approved CMP in
writing. Any departure from the approved CMP must be submitted in writing and
approved by the City Engineer. The approved construction management plan must be
kept onsite.
1.2 APPLICABILITY
This manual shall govern the construction and development of all public and private
construction projects in the City of Aspen. These regulations shall apply to all
commercial, industrial, residential, and mixed use developments which disturb 1000 SF
or greater or require demolition, improvement, or renovation (interior and/or exterior)
of 400 SF or greater within any twelve-month period.
1.3 DEFINITIONS AND TERMS
Construction Management Plan - A Construction Management Plan is a combination of
diagrams, documents, drawings, and specifications that clearly define the steps that will
be taken to demonstrate how the impacts to the community will be minimized. How the
impacts associated with any construction project will be managed. Herein described as
"Plan" throughout the remainder of this policy.
Construction Mitigation Officer - An appointed employee of the City of Aspen whose
change is to ensure that all aspects of a Construction Management Plan are followed,
and to further ensure that the impacts associated with construction activities within the
City of Aspen aze effectively managed and impacts associated with those projects are
the least necessary to accomplish the project.
Disturbance Area - A portion of land where topsoil or native soils have been removed
for purposes of construction (development).
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City of Aspen
Best Management Practices (BMP's) -Schedules of activities, prohibitions of
practices, maintenance procedures, and other management practices to prevent or
reduce the pollution of waters of the state. BMP's also include treatment requirements,
operating procedures, and practices to control site runoff, spillage or leaks, waste
disposal, or drainage from material storage.
Tree Dripline and Protection Zone -Use the longest branch of the tree as a radius from
the center of the tree and make a circle. The circle is then defined as the dripline and
thus is the tree protection zone.
Final Stabilization -Uniform vegetative cover has been established with a density of at
least 70 percent ofpre-disturbed levels.
1.4 REFRENCES
A. City of Aspen Policy 205-A Right-Of--Way Permit Requirements
B. City of Aspen Policy 204-A Revocable Encroachment License Application
C. City of Aspen Construction and Mitigation Standazds for Work in the Public
Rights-of--Way
D. City of Aspen Municipal Code Titles 13, 21, and 26
E. City of Aspen Ordinance 35
F. Manual on Uniform Traffic Control Devices for Streets and Highways - 2003
Edition
G. Colorado Department of Public Safety Genera] Permit Part IB
H. Colorado Department of Transportation M&S construction standards
I. Colorado Department of Public Health and Environment -Air Pollution Control
Division
2.0 PROJECT LOCATION
2.1 DISTURBANCE AREA
The Plan shall describe and compute the total project disturbance azea. Soil disturbance
shall be kept to a minimum. Construction staging and phasing shall occur, where
applicable, to minimize soil disturbance time.
2.2 LOCATION
A project vicinity map shall be included in the Plan. The map should accurately depict
general project location within the City of Aspen and also delineate project extents.
The map shall be a scaled drawing that includes a directional arrow and adjacent street
descriptions.
2.3 DESCRIPTION
The Plan shall include an overview of the construction project including background
information, proposed development type and general information. The proposed effect
on public utilities such as storm sewer, sanitary sewer, water main, etc. should also be
described.
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City of Aspen
3.0 PROJECT DOCUMENTATION
3.1 PERMITS /OTHER DOCUMENTS
The contractor shall maintain all applicable local, state and federal licenses and permits
that apply to the construction project. Applicable permits shall be listed, described and
copies of the documents shall be attached in Plan appendices. In addition to permits all
PUD's, Subdivision Improvement Agreements, and Related City Ordinances must also
be attached in the Plan appendices.
3.2 PUBLIC NOTIFICATION
A project update shall be provided to the public on a basis no less than monthly, via
website, newspaper, on-site notices, or other accepted means of notification (per
request of the City of Aspen). The first public notification shall occur no later than 10
days prior to construction. The update shall include a description of the current project
phase, list any traffic and/or pedestrian concerns, and describe hauling/staging
operations.
The above notification shall specifically be distributed to neighbors located within 300
feet of the project property.
The Plan shall designate a project representative, date, and time for a required
preconstrnction meeting. The purpose of the meeting is to discuss the project and
summarize the project specific Construction Management Plan. The contractor and
subcontractors are required to attend the meeting. Utility personnel, applicable City
departments, the Roaring Fork Transit Authority, neighboring property owners, and the
Aspen School District shall also be notified.
3.3 PROJECT SIGN
A project sign shall be constructed and posted that includes the items shown in
Appendix A: Required Construction Sign.
The sign shall be posted in a location where it is readable from the street or driveway
and shall meet criteria in City Municipal Code 26.510.030B4.
3.4 CONTACT DESIGNATION
The Plan shall have a contact list with associated phone numbers located at the front of
the document. The list will include: the owner, contractor appointed overall site
supervisor, a state certified safety officer, a state certified traffic control officer, and a
state certified erosion control representative. Other information shall include city and
county phone numbers, fire department, police department, Roaring Fork Transit
Authority (RFTA), school district, and all applicable utility company contact
information. The contact list should include hospital contact information and the
Emergency 911 reminder.
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City of Aspen
4.0 PROJECT IMPLEMENTATION
4.1 DATES OF CONSTRUCTION
Dates of construction shall be specified in the Plan. Any work being performed within
City ROW shall be completed as per the City of Aspen Right of Way permit
requirements.
4.2 HOURS OF CONSTRUCTION
Construction hours during the season (June 1st thru Labor Day and November 15th thru
March 31st) shall be limited to lam -Spm Monday through Friday and gam -Spm on
Saturday. No construction is permitted on Sundays, 4`s of July day and/or weekend if it
falls on a Friday or Monday, Memorial Day and Labor Day weekends, Thanksgiving
Day, Christmas Day, New Years Day.
During Presidents Day and during the Christmas week (12/26-12/31):
• projects located in the Central Resort Area (CRA) are not permitted to work on
any exterior elements, however interior work will be permitted.
• projects outside the CRA will be permitted to work.
During the Food & Wine Festival in June (Friday thru Saturday:
• projects located in the Central Resort Area (CRA) are not permitted to work
projects outside the CRA will be permitted to work.
The CRA area is defined in Appendix F.
Construction hours during off-season (April 15` thru May 3151 and Day afrer Labor Day
thru November 15th) will be Sam - 7pm Monday through Friday and from gam -Spm
on Saturdays. No construction is permitted on Sundays.
Specific indoor activities during restricted periods may be permitted with approval from
the City of Aspen Engineering Department; specific conditions will be applied to each
project separately. During the off-season 24 hour a day interior work may be permitted
within the CRA, the applicant must present a work plan to the City of Aspen
Engineering Department and the plan must be approved prior to working outside of the
normal construction hours.
All activity that generates noise in excess of 80 decibels requires a noise suppression
plan and is restricted to operating between the hours of gam and Spm Monday through
Friday.
4.3 SEQUENCE (PHASING) OF CONSTRUCTION
A construction schedule including all project phasing, with item details, and specific
item completion dates or duration of phasing is required.
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City of Aspen
The schedule shall be developed using Microsoft Project or a program of greater
capabilities as approved by the Engineering Department.
4.4 ADJOINING PROPERTIES
No person shall excavate on land close enough to a property line to endanger any
adjacent public street, sidewalk, and alley, other public or private property, or
easement, without supporting and protecting the property from any damage that might
result from construction operations.
4.5 PROJECT FENCING
All construction areas shall have anon-removable construction fence or other approved
device securely placed around the azeas to be protected. The fence shall be six feet (6')
in height and constructed out of chain-link fence with mesh windscreens (visual
bamers). Decorative construction fences may be allowed at the discretion of the City
Engineer. Please see Section 1 I for fencing noise suppression techniques.
4.6 PUBLIC HEALTH AND WELFARE
All construction projects located within the City of Aspen shall uphold utmost respect
to public health and welfare and be reflected in prepazed Plan.
4.7 NATURAL ENVIRONMENT
Project construction shall be oriented to minimize harm to all aspects of the City of
Aspen's natural environment. All tree and natural resource protection measures must
be identified in the Plan and in place prior to the commencement of any construction or
demolition activities. Refer to section 13.20.020b of the Municipal Code for tree
protection and removal requirements and process.
The Plan must contain a site map showing exact tree protection fence location and
accurate tree driplines (refer to Section 1.3 for dripline definition).
Proposed projects should be consistent with the chazacter of existing land use in the
surrounding area.
5.0 PARKING MANAGEMENT
5.1 PARKING MANAGEMENT FORM
A Pazking Plan must be requested, specified and submitted as part of the CMP.
5.2 EMERGENCY VEHICLE ACCESS AND ORDINANCE 35
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City of Aspen
The contractor shall maintain continuous emergency vehicle access, on and around site,
including but not limited to police, fire, and ambulance services. This includes projects
adjacent to roads and alleys.
All Plans shall include a coov and show compliance with Ordinance 35.
5.3 CONSTRUCTION PARKING DETAILS
Specific construction parking spaces/areas may be requested for use by craftsman,
subcontractors, and contractors involved in the site construction process. The City
allows minimal onsite parking with public transportation as the preferred method of
transportation. Transportation options may include, but are not limited to carpool,
vanpool, public transportation, paid shuttle. for transporting workers to the site, etc.
No construction parking will be permitted within the free two-hour residential parking
areas without a valid permit.
5.4 STAGING AREAS
The Plan shall specify construction staging area locations. Alleyways are preferred
short term staging locations without blocking access to neighboring properties. The
number of truckloads expected to and from the site should be estimated (including soil
hauling and materials transport). The timing and duration of the transport vehicles
should also be noted.
City of Aspen personnel can limit project staging locations, number of trucks, and
duration of operations depending on project location and site surroundings.
Projects that require crane operations and have little or no setbacks are required to use a
tower crane. The City prefers electric type cranes to reduce noise and fumes.
Right-of--Way encroachments are used as a last resort in all cases. In the case where a
ROW encroachment occurs, a permit must be obtained from the City Engineering
Department.
5.5 CONSTRUCTION TRAILER, MATERIALS STORAGE, AND WASTE
MANAGEMENT
As specified in Section 5.1, construction trailer, job materials storage, portable
restrooms, waste management and recycling container locations shall be clearly
designated on the project site plan. Loose job material storage is not allowed in ROW
under any circumstance.
The City of Aspen Engineering Asset Management Department strongly recommends
job trailer, waste management containers, and portable restrooms be stored on private
property and not within City ROW.
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City of Aspen
The City of Aspen re uires recycling of construction materials. In instances where
recycling containers cannot be accommodated onsite, the City Engineering Department
will consider locating recycling containers within public ROW where feasible. The
encroachment permit fee will be waived if it pertains to recycling containers. If at any
time such a container is not being used for recycling operations, the property owner will
be responsible to pay at least three months calculated land lease fee.
The City of Aspen requires recycling of materials, both conventional and construction
related, according to this document and City of Aspen Municipal Code (26.575.060).
Recycling requirements included in this section do not supersede project specific
Efficient Building Program (EBP) requirements.
Project site conventional recycling of co-mingled materials (plastics #1-#7, tin,
aluminum, and glass), and cardboard must have an assigned space/area and be
sepazated on-site during the project. These materials may not be disposed of in the
trash.
During the demolition phase of a project, deconstruction related activities are required
(recycling and/or salvaging). Concrete and scrap metals must be sorted and kept
separate on-site and must have an assigned space/azea.
Field inspections will occur throughout the permit process. If sorting of materials is not
occurring onsite, other means of verification may be provided to City of Aspen as
deemed appropriate.
Per municipal code, any dumpster or other trash receptacle that is used for food refuse
must be constructed in such a manner as to render it bear proof. All containers shall be
adequately covered at all times until transferred to the landfill. The City of Aspen
municipal code states it shall be unlawful to permit accumulated debris, litter, or trash
on any construction site to blow or scatter onto adjoining properties.
An onsite hazazdous material spill cleanup kit is required, as specified by the City
Engineer, that contains, at a minimum, a 25 pound bag of Floor-Dri (or equal),
absorbent pads, and other spill kit materials.
6.0 TRAFFIC CONTROL
6.1 GENERAL
All traffic control operations shall be managed by the designated certified traffic
control supervisor.
6.2 HAUL ROUTES
The City of Aspen has designated specific project haul roads throughout the City
(Appendix C). The project must follow the designated routes and specify any
additional routes necessary to complete hauling operations. Project haul routes shall be
oriented to minimize traffic congestion and maximize pedestrian safety.
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City of Aspen
6.3 ONSITE VEHICLE LIMITATIONS
All construction related vehicle activities shall be defined. Maximum vehicle weights
and sizes shall be specified.
6.4 DELIVERY REQUIREMENTS
Traffic control required For deliveries must be fully coordinated with the City of Aspen
Engineering Department. Roads will not be closed under any circumstances, unless
granted permission from the City of Aspen Engineering Department.
The maximum number of delivery vehicles onsite must be specified, along with the
hours the deliveries will occur, and any exceptions to the delivery schedule.
Delivery and Heavy Duty Vehicles must have a visible sign on the vehicle that
specifies the project contractors name and phone number.
Delivery vehicles and all other onsite vehicles are not allowed to idle for more than five
(5) minutes, with the exception of generators or PTO type operations. The general
contractor must include an idling policy in the Plan that meets City requirements.
6.5 TRAFFIC CONTROL PLAN
A preliminazy Traffic Control Plan (TCP) shall be submitted as part of the Construction
Management Plan if necessary to be determined by City Engineer. The TCP shall be
completed by a State Certified Traffic Control Supervisor and must conform to the
most current edition of the Manual of Uniform Traffic Control Devices for Streets and
Highways (MUTCD). The TCP shall contain all information specified in Section
6C.01 of the MUTCD.
A School Traffic Control Plan should be submitted in addition to the TCP in school
areas according to Chapter 7A of the MUTCD. If the project is not located in a school
area, but abuts a school bus stop or school walk route, extra traffic control personnel
and devices shall be implemented to ensure school pedestrian safety.
7.0 PEDISTRIAN PROTECTION
7.1 GENERAL
The Plan shall comply with pedestrian safety per City code 21.04.060, MUTCD
Chapter 6D, the Americans with Disability Act, and IBC Chapter 33.
8.0 SEDIMENT AND EROSION CONTROL
8.1 REQUIREMENTS
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City of Aspen
A Storm Water Pollution Prevention Plan shall be completed along with the CMP,
according to Colorado Department of Public Health and Environment Water Quality
Control Division General Permit Part IB.
The main objective of the storm water management plan shall be to identify Best
Management Practices, which will minimize erosion and sediment transport.
In addition to the Colorado Discharge Service Permit (the program) requirements, the
following apply:
1. Stock piles must be protected with erosion control devices.
2. Mud tracking ramps (rock construction entrances) aze required and
implemented per the most current version of the Colorado Department
of Transportation M&S construction standazds.
3. Onsite concrete and tire washout stations are required. Location and
operation procedures shall be described in Plan.
4. City inlets, gutters, swales and irrigation ditches shall be protected
with erosion control devices and such projection maintained for the
duration of the project.
5. A description of procedures used to protect and maintain in good and
effective operating condition the erosion sediment control measures
until final stabilization is required.
Onsite sediment and erosion control operations shall be managed by a state certified
erosion control supervisor.
8.2 SMUGGLER MOUNTAIN RESTRICTIONS
All projects located within the Smuggler Mountain superfund Zone (Appendix E) are
required to meet additional standards for erosion control measures and are required to
file an additional soil removal permit. These requirements shall be instituted on all
projects disturbing (excavating or exposing) more than one cubic yard of soil. All
projects located in the superfund site will also be required to handle disturbed and
excavated soils with an additional level of care.
1. A Smuggler Mountain superfund Site Soil Removal Pennit must be
completed prior to any soil disturbance in this azea. (Appendix E)
2. All contaminated soils must be disposed of at a duly licensed and
authorized facility, usually the Pitkin County Landfill, and the
receiving location must be made aware of the contaminated nature of
the soils.
3. Soils must be contained and covered at all times unless actively being
worked. Working will be defined as moving, compacting, backfilling,
exposing, or grading the soils at least once in a sixty minute period. If
any stockpile of soil is to be left for more than sixty minutes it must
be contained and covered.
4. Containment and Covering is required. This can be accomplished
through the use of anon-permeable tarp placed below the stockpile
and the same type of material shall be used to cover the stockpile.
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City of Aspen
5. After completion of the project an uncontaminated soil cap will be
required. This cap shall consist of twelve inches of clean fill or
gravel. This can also be accomplished by paving the area with asphalt
or concrete.
6. In order to obtain a "clean letter" from the City of Aspen, which, will
be required prior to the release of the Certificate of Occupancy, all of
the above conditions must be met.
9.0 FUGITIVE DUST CONTROL
9.1 FUGITIVE DUST CONTROL PLAN
All projects that result in fugitive dust emissions must submit a fugitive dust control
plan and file an application for a construction permit with the Colorado Department of
Public Health and Environment.
The approval of a Dust Prevention and Control Plan does not relieve the owner or
contractors of the responsibility to implement whatever additional measures may be
required by the City Engineer to properly prevent and control dust.
9.2 REQUIREMENTS
The plan shall demonstrate that the discharge of dust from the construction site will not
occur, or can be controlled to an acceptable level depending on the particular site
conditions and circumstances.
1. The plan shall address site conditions during construction operations,
after normal working hours, and during vazious phases of construction.
2. The plan shall include the name and the 24 hour phone number of a
responsible party.
3. If the importing or exporting of dirt is necessazy, the plan shall also
include the procedures necessary to keep the public streets and private
properties along the haul route free of dirt, dust, and other debris.
4. When an entire project is to be graded and the subsequent construction
on the site is to be completed in phases, the portion of the site not
under construction shall be treated with dust preventive substance or
plant materials and an irrigation system.
5. All phased projects shall submit a plan demonstrating that dust will not
be generated from future phase azeas.
For all construction within the site, the contractor shall have a water truck available for
dust control. Wetting shall be completed once three times a day under dry conditions
or as directed by the City Construction Mitigation Officer.
Vehicle speeds should not exceed 15 mph on construction access roads and
construction site.
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City of Aspen
10.0
10.1 GENERAL
All vehicles and equipment used on site will be properly maintained such that the
engines will function within manufacture's standards or parameters.
10.2 EMISSIONS FROM DIESEL POWERED ENGINES
Emissions from diesel engines operated within the City of Aspen shall be of a shade or
density no darker than 40% opacity, except for starting motion no longer than 10
seconds or for stationary operation not exceeding 10 seconds.
11.0 NOISE SUPRESSION
11.1 GENERAL
The noise limit for construction is 80 decibels measured at the property line of the
construction site. All construction equipment shall be adequately muffled and
maintained to minimize project noise. The installation of noise barriers is the minimum
technique to suppress noise, especially when jack hammering of concrete occurs.
11.2 NOISE SUPPRESSION PLAN
All activity that generates noise in excess of 80 decibels at the property line requires a
plan and is restricted to operating hours identified below. The plan will include
information on noise blocking methods, techniques, and common equipment and
activities that require noise suppression (Refer to Appendix D).
11.3 REQUIREMENTS FOR ACTIVITIES EXCEEDING 80 DECIBELS
Any work producing noise levels over 80 decibels is not permitted to
commence until after 9:00 am and is not permitted on Saturdays. That
includes but not limited to the use of compressors, generators,
jackhammers, power equipment, nail guns, drilling machinery, earth
moving equipment and similar loud construction activities. This does
not restrict quiet work inside and outside that does not require a power
source, including a battery, on Saturday.
2. Notify neighbors within two hundred fifty (300) feet of the project
informing them of the kinds of equipment, expected noise levels and
durations of loud work. Including the variation of noise levels during a
typical construction days may be helpful. Such notification must be in
writing and be done seven (7) days prior to the starting time of the
project. Communication with neighbors can prevent complaints from
arising, and resolve concerns before there is a problem. Provide a phone
number where the foreman can be reached prior to the start of the job.
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City of Aspen
3. Operate equipment in accordance with manufacturer's specifications and
with all standard manufacturers' mufflers and noise-reducing equipment
in use and in properly operating condition.
4. Post notices to inform workers, including sub-contractors, about the
basic noise requirements, as well as specific noise restrictions, to the
project.
5. Install noise barriers around all equipment/activities specified in Table 1
of Appendix D Noise barriers not only significantly reduce construction
noise, but they also provide an extra benefit of "hiding" the noise
producing sources, thus increasing a neighbor's tolerance.
6. Move portable loud equipment including generators, compressors, and
cement mixers to different sides of the property to reduce impacts on
individual neighbors.
7. The use of radios on the site before 8:00 am is not allowed.
11.4 Specific restrictions related to manufacturing on site.
Considering that some structures will require an increase in the level of manufacturing
of certain materials in order to complete the desired finish of the structure, additional
restrictions will be placed on those activities. The primary concern is that extending the
duration, for which neighbors are exposed to high levels of noise, could cause specific
unwanted responses. In order to reduce those risk factors to neighboring properties all
manufacturing efforts must be limited on site and when possible shall be conducted off
site, or in such a manner as to not contribute to any long term noise impacts off of the
property.
Manufacturing activities that are in excess of 80 decibels must be accompanied by an
Extended Impact Permit, this will require that the activity is enclosed completely and
limited to 90 days in duration. Air exchange /venting systems shall be installed or
otherwise supplied within the enclosure to provide a clean air source for laborers. The
enclosure must be constructed in a manner which prevents noise and dust from
escaping. This may be accomplished with the use of plastic sheeting to contain dust
and a more dense and rigid material (ply wood, foam insulation boards) erected to
contain sound. Noise levels will be measured at the property line, while facing the
source of the sound, and shall not exceed 65 decibels during working operations.
Activities will be considered manufacturing if alterations to a material that is readily
available on the market are made in order for the material to meet the needs of the
end user. An example of this would be masonry wall construction. If the all of the stone
was delivered as a rough cut product to the site, and each of the stones were to be cut
square and fit into place. In this example the stone cutting is considered the
manufacturing portion of the masonry wall, and should be conducted off site. This
would allow the stones to be cut square and to the appropriate dimensions and
additional work to fit the stones would be permitted on site.
All work which requires a limited amount of additional manufacturing to achieve the
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City of Aspen
desired finish (including fitting) shall be conducted between gam and 5pm, and shall
have an approved noise suppression plan on site, relating to the activity.
12.0 ENFORCEMENT
12.1 CITY CONSTRUCTION MITIGATION OFFICER
A City Construction Mitigation Officer shall be assigned to each construction project.
The City Construction Mitigation Officer will complete random site visits to determine
if the project is following approved Plan and City requirements. The officer is not
intended to take the place of a City of Aspen building inspector.
12.2 CORRECTIVE ACTION
The City of Aspen will enforce construction mitigation corrections as follows:
1. The first corrective action is a verbal warning and explanation of the
violation with a timeframe for completion.
2. The second corrective action is a written warning or correction notice
with timeframe for compliance.
3. Third and final notice is a "Stop Work Order" (red tag). If a stop work
order is issued, no more work can be completed until the violation is
corrected.
Failure to correct violations and/or any threat to public safety could subject the owner,
contractor or both to a fine of $1000 a day as determined by the municipal court.
12.3 INSPECTION REPORTS
The Construction Mitigation Officer will complete construction inspection reports. All
reports are public and will be kept in the City Engineering Asset Management
Department.
Revised 8/11/10
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