HomeMy WebLinkAbout15114RESOLUTION NO. 15114
A RESOLUTION APPROVING REVISIONS TO THE
STANDARD CONSTRUCTION SPECIFICATIONS AND
STANDARD DETAILS FOR THE CITY OF PUEBLO
WHEREAS, Resolution 14853, dated April 11, 2022, adopted the Standard
Construction Specifications and Standard Details; NOW, THEREFORE,
BE IT RESOLVED BY THE CITY COUNCIL OF PUEBLO, that
SECTION 1.
Pursuant to and in furtherance of sections 4-2-2 (8), 12-3-1, 12-4-7 (J)(2), 12-4-
7(J)(5)(b), 12-4-7 (J)(5)(c), 12-4-7 (J)(8), 12-6-5 (f), and 12-6-9 of the 1971 Code of
Ordinances of the City of Pueblo, as amended, and upon recommendation by the City
Engineer, City Council does approve the revisions to the Standard Construction
Specifications and Standard Details for the City of Pueblo, Colorado, published April 11,
2022, by the Department of Public Works, a true copy of which is attached hereto and
made a part hereof by reference (hereinafter referred to as the “Standard
Specifications”).
SECTION 2.
After adoption of this Resolution, a true copy of the Standard Specifications, as
revised, shall be maintained on file in the office of the City Clerk for public inspection.
Copies of the Standard Specifications, as revised, shall be made available through the
City’s Department of Public Works and on the City of Pueblo Website.
SECTION 3.
The officers of the City are authorized to perform any and all acts consistent with
the intent of the Resolution to implement the policies and procedures described herein.
SECTION 4.
This Resolution shall become effective immediately upon final approval.
INTRODUCED January 9, 2023
BY: Vicente Martinez Ortega
MEMBER OF CITY COUNCIL
APPROVED:
PRESIDENT OF CITY COUNCIL
ATTESTED BY:
CITY CLERK
City Clerk's Office Item # M5
Background Paper for Proposed
Resolution
COUNCIL MEETING DATE: January 9, 2023
TO: President Heather Graham and Members of City Council
CC: Mayor Nicholas A. Gradisar
VIA: Marisa Stoller, City Clerk
FROM: Andrew Hayes, Public Works Director
SUBJECT: A RESOLUTION APPROVING REVISIONS TO THE STANDARD
CONSTRUCTION SPECIFICATIONS AND STANDARD DETAILS FOR
THE CITY OF PUEBLO
SUMMARY:
This Resolution approves revisions to the Standard Construction Specifications and
Standard Details for the City of Pueblo, Colorado dated April 11, 2022, and was
amended on December 12, 2022.
PREVIOUS COUNCIL ACTION:
Resolution 14853, dated April 11, 2022, adopted the Standard Construction
Specifications and Standard Details.
Resolution, Item M6, approved December 12, 2022, amended the adopted Standard
Construction Specifications and Standard Details.
BACKGROUND:
The Public Works Department – in coordination with other departments responsible for
managing the City of Pueblo Public Infrastructure Systems – develops construction
standards and specifications that apply to all City of Pueblo projects. The Standards
also apply to construction work performed by developers and builders responsible for
constructing public improvements in residential, commercial, and industrial
developments within the City of Pueblo.
These standards ensure the public infrastructure can safely meet the needs and
demands of the public; and that the City of Pueblo remains in compliance with State
and Federal law; and that the City of Pueblo responsibly approaches the management
of the Total Life-Cycle cost of constructing, operating, and maintaining its infrastructure
systems. The Standards generally do not specify what types of improvements must be
constructed for a given project, but they do address the required quality, materials,
dimensions, capacities, and other physical and functional characteristics for our public
infrastructure systems.
The Standard Construction Specifications and Standard Details were adopted by the
City Council in April 2022. Since their adoption, certain administrative corrections are
necessary to provide Clarification of Intent.
Attached to the Resolution are those sheets from the Standard Specifications that have
been changed. Those changes that are deletions are stricken through and are in
brackets. Those changes that are additions are underlined. All changes (either
additions or deletions) are in red.
FINANCIAL IMPLICATIONS:
Not applicable.
BOARD/COMMISSION RECOMMENDATION:
Not applicable.
STAKEHOLDER PROCESS:
Since implementation of the Standard Construction Specifications and Standard Details
in April 2022, the City of Pueblo has continued to engage with the Committee of
Community Development (made up of local engineers, designers, builders, developers,
representatives from PEDCO, and City Council members) to review and provide
feedback on the Standards.
The Public Works Department desires to continue working with the Committee and
other stakeholders on an annual basis to discuss specific areas of concern and any
issues that may arise over time with respect to the Standard Construction
Specifications and Standard Details.
ALTERNATIVES:
The existing Standard Construction Specifications and Standard Details will remain in
effect if the Resolution is not approved.
RECOMMENDATION:
Approval of the Resolution.
ATTACHMENTS:
1. Standard Construction Specifications - Text Revisions (010923)
cost to the City.
(d) Excavation for Appurtenances. Provide excavation for manholes, catch-basins,
inlets, or similar structures sufficient to leave at least 12" clear between the outer
structure surfaces and the face of the excavation or support members. Clear rock or
loose debris and cut to a firm surface either level, stepped, or serrated, as directed
by the Engineer. Remove loose disintegrated rock and thin strata. When concrete
or masonry is to be placed in the excavated area, take special care not to disturb the
bottom of the excavation. Do not excavate to the final grade level until just before
the concrete or masonry is to be placed.
(e) Jacking, Boring, and Tunneling. Unless otherwise indicated, provide excavation by
open cut except that sections of a trench may be jacked, bored, or tunneled if, in the
opinion of the Engineer, the pipe, cable, or duct can be safely and properly installed
and backfill can be properly compacted in such sections. The utility shall be at a
cover depth of not less than 48" unless approved by City Engineer. Equipment to be
used and method of installation shall be presented to the City Engineer for approval
prior to any installation.
(f) Underground Utilities. The contractor is responsible for movement of construction
machinery and equipment over pipes and utilities during construction. Work
performed adjacent to non-City utilities shall be in accordance with procedures
outlined by the utility owner. For work immediately adjacent to or for excavations
exposing a utility or other buried obstruction, excavate by hand. Start hand
excavation on each side of the indicated obstruction and continue until the
obstruction is uncovered or until clearance for the new grade is assured. Support
uncovered lines or other existing work affected by the excavation until approval for
backfill is granted by the Engineer. Report damage to utility lines or subsurface
construction to Engineer immediately.
(g) Asphalt Patch. If the distance from the lip line of the curb & gutter to the trench is
less than 4', all asphalt shall be removed from lip to the trench line. Asphalt shall
have a sawcut edge 12" on either side of the trench.
7.3.2.6 Potholing Backfill Requirements
It is the responsibility of the contractor working within the public right-of-way to locate all
utilities and telecommunication infrastructure prior to beginning any work. The locating
of these utility infrastructures shall be performed by a licensed contractor and shall
conform to the following requirements:
(a) Utility locate potholes shall not be placed in the wheel path of a travel lane or
within 10-feet of a crosswalk. Potholes shall not be placed within the concrete
accessible walking surfaces or curb ramps, if a pothole must be made in these
surfaces, the contractor shall replace the entire concrete section or curb ramp.
(b) All utility locate potholes in the pavement section, sidewalk, or curb and gutter
shall be cored with a circular coring saw with a maximum diameter of 12-inches.
Article 7 - 4
The plug shall be carefully removed, without causing damage to the plug. The
plug shall be marked and removed from the site until such time as it is returned in
the core hole.
(c) Excavations for potholes shall be backfilled with CLSM in accordance with Article
4.2.3. Native material removed shall not be used to backfill the pothole.
(d) All plugs will be placed back in the corresponding hole in the original orientation
at the time of restoration. The sides of the plugs shall be coated and the top
sealed with permanent bonding agent.
(e) In the event the core plugs are damaged or cannot be used to fill the core hole,
the asphalt shall be repaired using hot mix asphalt paving material from the City
approved list. For concrete plugs, repairs shall be made using a 4,000-psi
concrete mix.
(f) Core holes shall be cleaned and tacked prior to placing hot mix asphalt paving
materials as follows:
a. Residential — 6-inches of hot mix asphalt paving materials.
b. Collector/Arterial — 12-inches of hot mix asphalt paving materials.
(g) Variances to this policy must be approved in writing by the City Engineer.
(h) Initial locate potholes may be temporarily repaired, meeting all applicable safety
requirements, for no more than 30 days unless additional time is authorized by
the City in writing.
7.3.3 STRIPPING OF TOPSOIL
Where indicated or as directed, strip topsoil to a depth as prescribed in the construction
plans or to a depth of 4". Spread topsoil on areas already graded and prepared for topsoil,
or transported and deposited in stockpiles convenient to the areas that are to receive
application of the topsoil later, or at locations indicated or specified by the Engineer. Keep
topsoil separate from other excavated materials, brush, litter, objectionable weeds, roots,
stones larger than 2" in diameter, and other materials that would interfere with planting and
maintenance operations.
7.3.4 CLEARING AND GRUBBING
Keep roads and walks free of dirt and debris at all times.
7.3.4.1 Clearing
Article 7 - 5
new material direction over the old line of compatible material. Such new
material shall bond itself to the old line in such a manner that no splitting or
separation takes place."
8.4.5 MEASUREMENT AND PAYMENT
The accepted quantities will be paid for at the contract price per unit of measurement for each
the pay items listed below that appear in the bid schedule. Payment will be made under:
Table 8.6. Payment Units
Pay item Pay Unit
Pavement Marking Paint Gallon
Modified Epoxy Pavement Marking Gallon
Pavement Marking Tape LF
Pavement Marking Paint (Word-Symbol) SF
Pavement Marking Paint (Xwalk-Stop Line) SF
Thermoplastic Pavement Marking SF
Thermoplastic Pavement Marking (Word-Symbol) SF
Thermoplastic Pavement Marking (Xwalk-Stop Line) SF
Preformed Thermoplastic Pavement Marking SF
Preformed Thermoplastic Pavement Marking (Word-Symbol) SF
Preformed Thermoplastic Pavement Marking (Xwalk-Stop Line) SF
Waterblasting will not be measured or paid for separately but shall be included in the work.
Glass beads and cleaning with high pressure water blast or air blast shall be included in the cost
of the work. Each authorized application of temporary pavement marking will be measured and
paid for at the contract unit price for each type of material used. Control points and Contractor
pavement marking plans will not be measured and paid for separately but shall be included in
the work. All costs associated with having the Preformed Plastic Pavement Marking
manufacturer-trained installer on-site and providing documentation will not be measured and
paid separately but shall be included in the work.
8.5 CRACK SEALING
8.5.1 DESCRIPTION
This item shall consist of furnishing all materials, equipment, labor, cleaning and clean up, traffic
control and incidental items necessary for sealing or filling cracks of asphalt pavements. The
purpose of crack sealing and crack filling is to prevent the intrusion of water and other materials.
Crack sealing shall be applicable for cracks 1/4"to 3/4"wide or as recommended by
manufacturer. Crack filler is recommended for cracks that are 1" or wider and/or exhibit edge
deterioration.
Crack Sealer is used for working cracks, cracks that have more than 1/4" seasonal
movement. Both hot and cold materials are currently available for crack sealing;
however, this specification is meant to only apply to hot applied materials.
Crack Filler should be used for nonworking cracks. Non-working cracks are cracks that
have annual movement less than 1/4". Non working crack types may include wide transverse
Article 8 - 14
cracks. If a crack exhibits edge deterioration it should be filled not sealed.
8.5.2 MATERIALS
Materials used for crack sealing shall meet or exceed requirements of ASTM D 6690 for Type II
Material as specified. Crack sealers are typically viscous at high temperatures and applied with
a wand and excess material is spread with a squeegee. The Contractor/Developer shall provide
material certifications and manufacturer's instructions for heating and application.
Materials used for crack filling shall be a premixed blend of polymer modified asphalt binder and
wear resistant aggregates heated and mixed in a specialized melter. They are usually applied
using a specialized device and smoothed with a heated float. The Contractor/Developer shall
provide material certifications and manufacturer's instructions for heating and application.
Material shall be approved by Engineer prior to application.
8.5.3 EQUIPMENT
Equipment shall be as specified by the sealant manufacturer and approved by the Engineer. All
equipment and machinery shall be kept in good working order, free of leaks and properly
muffled. All taxes, licenses and fees shall have been paid and proper licenses and permits shall
be posted as required by law.
An oil jacketed type melting unit equipped with both agitation and recirculation systems shall be
used to heat the sealant. Direct Fire Melters will not be allowed. The unit shall be equipped with
separate thermometers for both the oil bath and the crack sealing material. Thermometers shall
be calibrated on a weekly basis to ensure the proper heating of the material.
Materials shall be heated according to the manufacturer's specifications. Fresh material
shall not be added to material that was overheated in an attempt to make it acceptable.
Material that has been overheated shall be removed and discarded.
8.5.4 CONSTRUCTION REQUIREMENTS
Prior to sealing, all loose material shall be blown out of cracks using a heat lance. Care shall be
taken not to burn of scorch the pavement. Torches shall not be used. The Contractor/Developer
shall ensure that blown debris shall not strike pedestrians, workers, or cause damage to
vehicles and/or private property during cleaning and sealing operations. The
Contractor/Developer shall clean debris from streets and sidewalks as soon as sealant has
hardened sufficiently.
Cracks shall be free of moisture, residue from deicing chemicals, vegetation and loose matter
prior to sealing. If sealant boils when applied additional drying is required before sealing
resumes.
Cracks shall be sealed to a minimum depth equal to two times the crack width or the full
thickness of the pavement. Overband, if used, shall not exceed 3" in width and 1/8" in height
above the pavement surface. Overband width is critical when sealing longitudinal cracks or in
stopping zones to avoid creating hazards for cyclists or reducing the tire friction.
Article 8 - 15
When the Engineer specifies routing of cracks, routing shall precede blowing out cracks.
Engineer shall specify if routing is required prior to placement of Crack Seal and the type of
sealant or filler application to be installed:
Flush Fill Routed and Flush Filled
Flush --/N1
Ilk'
Overband (also referred to as "Band Aid") Routed and Overband
AT
171
The finished level of Crack Seal or Crack Filler shall be flush to 1/8" above the asphalt surface.
Excess material shall be removed by the Contractor/Developer at the Contractor's/Developer's
expense.
The Contractor/Developer shall apply the sealant material according to manufacturer's
recommendations with approval by the Engineer. The Contractor/Developer shall be solely
responsible for safety during all operations and making sure material is placed only in cracks
with or without overband as shown above. Costs of damage, cleanup and/or material placed
incorrectly shall be borne by the Contractor/Developer.
Traffic shall be kept off sealant until sufficiently hard to not be picked up by traffic. Cooling of
sealant can be accelerated using a commercial solution or water. Blotting with sand or paper is
not acceptable.
Article 8 - 16
QUALITY CONTROL REQUIREMENT CHECKLIST
Climatic Conditions:
• Surface temperature is at least 45°F and rising or per manufacturer's recommendations.
• No moisture, fog or dew is present.
• Early morning operations should be performed in direct sunlight.
Routing
• Cutting tips are sufficiently sharp to minimize spalling and cracking.
• Proper safety garments are worn (hard hat, reflective vest, long-sleeved shirt, pants,
steel toed boots, safety goggles, and hearing protection).
• Guards and safety mechanisms on equipment work properly.
• Router follows cracks without difficulty.
• Routed cracks do not exhibit spalling.
Material Preparation
• Proper safety garments are worn (hard hat, reflective vest, lonq-sleeved shirt, pants,
steel toed boots, safety goggles, and hearing protection).
• Heating oil in melter jacket is not fuming and level is adequate.
• Temperature gauge on the melter has been calibrated to the satisfaction of the
AGENCY.
• If the temperature gauge has not been calibrated:
• Measure sealant temperature with a thermometer.
• Ensure that the reading on the thermometer is the same as the reading on the melter
temperature gauge.
• Sealant is never reheated above the manufacturer's recommended pouring temperature.
• Material safety data sheet (MSDS) is available on-site.
Cleaning of Cracks and Routs
• Proper safety garments are worn (hard hat, reflective vest, long-sleeved shirt, pants,
steel toed boots, safety goggles, and hearing protection).
• A power sweeper or vacuum cleaner is being used to remove dirt and debris from the
pavement surface.
• Compressor for high-pressure air provides at least 100 psi.
• Oil and moisture filters on compressor work properly.
• Temperature of the hot-air lance is below 930°F and the tip is 2 to 4 inches from the
crack or rout.
• The cleanliness of the crack or rout is being checked every 30 minutes.
• The crack or rout is dry.
• No deicing chemical residue is present.
Sealant Application
• Hot-pour sealant is poured at the manufacturer's recommended temperature.
• The material is applied to the inside of the cracks.
• Insure that sealant is placed up to the asphalt surface.
• There is sufficient sealant to allow for overband (if applicable).
• There are no bubbles due to moisture present.
Article 8 - 17
Overbandinq of Sealant(if applicable)
• Over band is not more than 3 inches wide.
• Over band is not more than 1/8 inch above the pavement surface.
• Over band is formed during, or immediately after, sealant application.
• Excess sealant is removed before hardening.
Sealant Protection
• Traffic is rerouted until sealant is set.
8.5.5 MEASUREMENT
Crack sealant shall be measured and paid by the ton complete in place and accepted. If routing
is specified it will not be measured and paid separately but shall be included in the cost of
material.
The Contractor/Developer shall measure and the inspector verify the following:
Before work starts each day:
• Amount of material in melter
• Number and weight of containers of material on site
• All containers are clearly marked with manufacturer's information.
At the end of work each day:
• Amount of material in melter.
• Number of containers of material not used.
The Contractor/Developer shall certify that material in the melter is per the specifications and
has not been overheated.
Measurement will not begin before inspector arrives.
Inspector shall be given adequate notice if material is to be delivered during the workday and
have the opportunity to verify quantity.
Counting or delivering boxes or lids shall not be an acceptable method of verifying quantity of
material.
8.5.6 TESTING AND INSPECTION -GUIDANCE
When pulled vertically using a flattened sharp tipped 1/4" rod bent at 90° the bond between the
sealant and asphalt should be stronger than the sealant or the asphalt. Sealant or existing
asphalt pavement should fail before the bond is broken.
Article 8 - 18