Frank Sen, PE, Civil Engineer fsen@bcf-engr.com
451 Clovis Ave, Suite 200 Clovis CA 93612 Tel (559) 326-1400
Clovis Unified School District
1450 Herndon Avenue
Clovis, CA 93611
May 9, 2016
File No. 215-0406
Subject: Bid 2651
2016 Pavement Rehabilitation at Various Schools
Addendum 2
I have attached a PDF of our Addendum 2 plans. Please see the following list for a summary
description of the changes. Refer to the plans for all Addendum 2 changes encompassed by a
revision cloud and denoted by delta 1.
Clarification, project Bid 2651: (Applies to all schools unless specifically noted otherwise
and project in Bid 2651)
1. Added note, “Contractor shall notify school district to turn off irrigation a
minimum of 2 working days prior to paving and seal coat.”
2. At all accessible stalls, any yellow curb shall be painted blue.
3. Any existing utilities, improvements, irrigation, and/or turf that becomes
damaged during construction shall be completely restored to the satisfaction of
the school district, at the contractor’s sole expense.
4. Cut and cap existing irrigation as required for new improvements and at
locations where planting is removed or demolished.
5. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
6. Clovis Adult School project shall require that at least one half of the parking lot
is operational at all time during construction and one half of the parking allows
for student parking. Contractor shall coordinate the construction schedule with
the school district and account for that only one half of the site is permitted for
construction at a time. Phased construction is required.
7. All newly placed pavement shall receive water tests with approval from the
Project Inspector or Engineer. Contractor shall fix all bird baths or areas of
removal as required by the Project Inspector or Engineer.
8. Added Tennis Court Specifications (see last page of this Addendum 2, four total
sheets for specification). These specifications applies to Alta Sierra and Reyburn
Intermediate School Tennis Courts.
Sheet 1:
1. Revised legend.
2. Revised the scope of demolition.
www.bcf-engr.com
Clovis • Glendale • San Francisco
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3. Added callouts.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 2:
1. Added maintenance strips at existing sign locations.
2. Replaced ramp wing.
3. Replaced existing planters with pavement.
4. Added detail callouts.
5. Added callouts for specific areas of concrete and truncated domes to be
completed by others.
6. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 3:
1. Added details P/ASX1 and A/AS4
2. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 4:
1. Added text, “Additive Bid Alternate BH1, BH2, BH3, BH4, BH5, BHX1, & BHX2.”
The entire Buchanan H.S. project is Additive Bid Alternate.
2. Revised truncated dome locations.
3. Added dimensions.
4. Added grade.
5. Removed ramp east of proposed drop-off from scope. Replaced with concrete
walk and concrete curb.
6. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 4.1:
1. Clarified general limits of heavy duty asphalt structural patch locations by
bubble. The exact heavy duty asphalt patch locations are identified in the Site
and Grading Plan Sheet
2. Revised asphalt structural sections
3. Added asphalt structural section notes.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 5:
1. Revised legend.
2. Added notes
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3. Added note that DSA # 02-114554 improvements shall be completed prior to
DSA # 02-114882 improvements.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 6:
1. Removed signs and posts, patch and backfill void with concrete as required.
2. Added notes.
3. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 7:
1. Added notes for existing DSA numbers
2. Revised existing path of travel
3. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 8:
1. Added notes
2. Revised truncated dome locations.
3. Added slopes and directional arrows.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 9:
1. Revised detail B/CEHX2.
2. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 9.1:
5. Clarified general limits of heavy duty asphalt structural patch locations by
bubble. The exact heavy duty asphalt patch locations are identified in the Site
and Grading Plan Sheet
6. Revised asphalt structural sections
7. Added asphalt structural section notes.
8. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 10:
1. Revised existing and proposed path of travel.
2. Revised and added notes.
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3. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 11:
1. Revised ramp.
2. Revised pavement stripe.
3. Revised plan enlargement A/CH3.
4. Added detail H/CHX1.
5. Revised dimensions.
6. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 11.1:
1. Revised pavement section detail A/CHX1.
2. Added asphalt structural section notes.
3. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 12:
1. Revised legend.
2. Added dimension.
3. Added callouts.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 13:
1. Added dimensions.
2. Added detail A/KI5.
3. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 13.1:
1. Clarified general limits of heavy duty asphalt structural patch locations by
bubble. The exact heavy duty asphalt patch locations are identified in the Site
and Grading Plan Sheet
2. Revised asphalt structural sections
3. Added asphalt structural section notes.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
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Sheet 14:
1. Revised legend.
2. Revised detail A/REX1.
3. Revised truncated dome locations.
4. Revised concrete at ramps.
5. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 15:
1. Revised legend.
2. Added notes.
3. Added detail callout.
4. Added truncated domes.
5. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 16:
1. Revised detail B/WE3.
2. Revised truncated dome locations.
3. Revised concrete at ramps.
4. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Sheet 17:
1. Revised details; Signs, Entry Sign, Detectable Warnings, Accessible Ramp
Section, and Accessible Signs.
2. See plans for all revisions encompassed with a revision cloud and denoted by
delta 1.
Alta Sierra and Reyburn Tennis Court Specifications (Sheets 18, 19, 20, 21):
BLAIR, CHURCH & FLYNN CONSULTING ENGINEERS
Frank Sen, PE
Project Manager
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(E)
PARKING LOT 3
DSA# 02-65591
(E)
PARKING LOT 4
REFER TO DRAWING CEH1
REFER TO DRAWING CEHX2
SECTION 100 - TENNIS COURT RESURFACING
100-1
GENERAL
100-1.1
Description. - The work includes, but is not limited to, all labor, materials, tools, equipment,
transportation and services necessary for and properly incidental to the furnishing and completion of all work as
shown on the drawings and as specified herein.
100-1.2
Qualifications. - Bidders are required to provide certifications from the manufacture of the surfacing
system, stating they are a certified contractor of the manufacture’s product and shall reference 3 projects
completed in the last 5 years that demonstrate successful installation of the manufacture’s surfacing system.
100-2
PRODUCTS AND MATERIALS
100-2.1
Court Surfacing System. - The court color surfacing shall be a Fortified Plexipave surfacing, with a
color base HU, part of the "Plexipave System," as manufactured by California Products Corporation, 150
Dascomb Road, Andover, MA, 01810 (Tel. 978-623-9980) or approved equal. The color finish system shall not
contain any asbestos materials in the material mix. Court colors shall match the existing court colors. Final
color shall be submitted and approved by the District prior to the ordering of the material. Court surfacing
system shall be furnished and installed in conformance with this section and per manufacturer’s
recommendations.
100-2.2
Acrylic Resurfacer. - Acrylic resurfacer shall be per Plexipave specifications or approved equal.
100-2.3
Playing Line Paint. - Lines shall be white, painted with Plexicolor Line Paint per Plexipave
specifications or approved equal, in accordance with specifications of the United States Tennis Association
(USTA).
100-2.4
Court Patching. - All court patching shall be done with Court Patch Binder per Plexipave
specifications or approved equal.
100-2.5
Concrete Preparer – Concrete Preparer shall be per Plexipave specifications or approved equal
100-2.6
Primer Coat – California Ti-Coat epoxy primer per Plexipave specifications or approved equal
100-3
EXECUTION
100-3.1
General. - The tennis court resurfacing shall consist in general of the following items of work or as
recommended by the manufacturer:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Remove nets, center straps, tie downs or as shown on plans
Replace tie downs, post sleeves or as shown on plans
Remove and replace the expansion joint material and clean the joints
Grind off existing surface where surface shows signs of Alkali-Silica and/or Alkali-Carbonate
Reactions.
Surface preparation
Use TSP, applied per the recommendations of the manufacture of the surfacing system, to clean
the surface if oil or grease spots exist after the pressure wash process
Perform a water test and mark areas of depressions, low spots or bird baths
Repair all chipped, spalling and depressions with Court Patch Binder
Areas where grinding occurred a concrete preparer, court patch binder and primer coat shall be
applied.
Apply one acrylic resurfacer coat on all court surfaces
Apply three coats of Fortified Plexipave colored surfacing on all court surfaces
Apply 2” wide white tennis court striping by hand painting (no spray painting is allowed)
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13.
14.
Install expansion joints
Install tennis court nets and center straps
Application of court surfacing must be made by a thoroughly experienced Contractor. Contractor must be able
to show tennis court applications that he has completed which have been in use for at least two years. Both
material and application must be completely satisfactory to the Engineer.
Textured coats and surfacing course shall be applied in accordance with these specifications and the
manufacturer’s written installation instructions. The Contractor shall provide the Engineer six (6) copies of
manufacturer's written installation literature a minimum of two weeks prior to applying the color texture system.
The cleaned and patched courts shall be approved by the Engineer before any color texture coating is applied.
A written statement by the manufacturer’s representative of the tennis court resurfacing to be applied shall be
given to the Engineer that certifies the courts are prepared properly and are ready for the application of the new
surfacing.
100-3.2
Surface Preparation: - The existing tennis court surfacing shall be completely removed by water
blasting or shot basting to expose the surface of the tennis court concrete slabs. The Contractor shall protect
all existing improvements not designated for water blasting. Remove all grease and oil by using a strong
solution of detergent and water followed by thorough flushing of the surface with water.
Water blasting or “Hydro-blasting” shall be performed by a machine capable of producing a minimum water
pressure at the spray nozzle of 8000 psi and is specifically designed for the removal of tennis court surfacing
from concrete surface. The “Hydro-blasting” machine to be used by the Contractor must be submitted and
approved by the Engineer. A demonstration to the District and the Engineer is required to determine if the
machine is capable of removing the existing tennis court surfacing prior to the remove of the surfacing. The
Contractor shall make a minimum of two slow speed passes in opposite directions over all surfaces to receive
water blasting. If the District and the Engineer determines that the Contractor requires more effort to remove
the existing tennis court surfacing, additional slow speed passes will be required.
The Contractor shall make every effort to not allow any removed tennis court surfacing debris or water runoff
from entering and contaminating the storm drainage system, sewer system or adjacent landscape areas and as
directed by the Engineer. A plan for the prevention of contamination must be submitted and approved by the
Engineer before any water blasting can begin.
Shot blasting shall be performed by a machine capable of removing the tennis court surfacing from the
concrete surface and not damage the surface of the concrete. The machine shall reclaim and recycle the steel
shots or abrasive materials and vacuum the removed tennis court surfacing. The shot blasting and vacuum
system shall produce a dust free environment. Literature on the shot blasting machine to be used by the
Contractor must be submitted and approved by the Engineer. A demonstration is required to determine the
capability of the machine. After shot blasting, the courts shall be washed down as necessary and as
recommended by the manufacturer of the new tennis court surfacing.
After water blasting or shot blasting, the contractor shall clean the concrete surface of any debris. The
contractor shall then apply a concrete preparer to the entire surface per the manufacturer’s recommendations.
After surfacing removal, the Contractor shall perform a water test with the use of water from a fire hose or water
truck on all the tennis courts to determine and mark any depressions, low spot or bird bath areas. The court
patching shall be applied to these areas and leveled to allow proper drainage.
All existing chipped or spalling areas on the courts shall be repaired. All court patching shall be done with the
court patching material in accordance with the manufacturer’s recommendations.
Once the repairs are completed the contractor shall apply a primer coat to the surface. The primer coat shall be
applied per manufacturer’s specifications.
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100-3.3
Application of Acrylic Resurfacer. - The surface to receive the acrylic resurfacer mix shall be of
uniform texture and be clean and free of grease, oils and other foreign materials. Acrylic resurfacer mix shall be
applied to a clean, dry, level surface using following mix:
Acrylic Resurfacer
Water (clean and potable)
Sand (60-80 mesh)
Liquid Yield
55 gallons
20-40 gallons
600-900 pounds
112-138 gallons
Allow the application of acrylic resurfacer to dry thoroughly. Scrape off all ridges and rough spots prior to any
application of the court surfacing system.
100-3.4
Application of court surfacing system. - All areas to be color coated shall be clean, free from sand,
clay, grease, dust, salt or other foreign matters. Contractor shall obtain Engineer’s approval, prior to applying
any surface treatment.
Application shall be made by 50-durometer rubber-faced squeegees. The court surfacing system mixture
should be poured on the existing court surface and spread to a uniform thickness in a regular pattern. Three (3)
squeegee coats of the same color shall be applied in succession as soon as the previous coat has dried. The
contractor shall be accountable at all times for the amount of materials of each color used.
A total of three (3) applications of the court surfacing system shall be made as required to achieve to a total
application rate as shown below. No application should be made until the previous application is thoroughly dry.
First Coat Second CoatThird Coat -
10-15 square yards per gallon. (.1-.07 gal./sq.yd.)
15-20 square yards per gallon. (.07-.05 gal./sq.yd)
20-25 square yards per gallon. (.05-.04 gal./sq.yd.)
100-3.5
Application of White Striping Paint. - Apply white striping paint to the clean, dry, color coated
surface by brush, roller, airless spray or special marking equipment. Mix paint thoroughly before using. The
paint shall be applied per manufacture’s specifications.
All court striping shall conform to the court layout requirements of the USTA.
100-3.6
Limitations. - All coatings used in the color system specifications are water vehicle products and
must be protected from freezing during shipping, storage, application and drying. Do not apply when rain is
likely to occur before coating has dried. Minimum application temperature is 50 F and rising.
100-3.7
Guarantee. - The court surfacing shall be guaranteed for a period of one year from any defects and
materials in workmanship and that the work has been done in accordance with the drawings and specifications.
SECTION 101 – EXPANSION JOINT SEALANT
101-1
GENERAL
101-1.1
Description. - The work includes all labor, materials, tools, equipment, transportation and services
necessary for and properly incidental to the furnishing and completion of all work as shown on the drawings and
as specified herein, including but not limited to the following:
Removal of the expansion joint material, furnish and place expansion joint sealant and all other work as
specified herein or on the project drawings.
101-1.2
PRODUCT AND MATERIAL
101-2.1
Expansion Joint Sealant. - The sealant shall be a two-component, self-leveling, polyurethane
elastomeric sealant, available in various colors to match the new tennis court surfacing colors, similar to
“Sikaflex-2c, SL” as manufactured by Sika Corporation, 1682 Marion Williamsport Road, Marion, OH 43302 or
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approved equal.
101-2.2
Backer Rod Materials. - The material shall be non-absorbent, and specifically recommended by the
sealant manufacturer.
101-2.3
Masking Materials. - The material shall be an appropriate masking tape which will effectively
prevent application of sealant on surfaces that are not scheduled to receive it and removable without damage to
substrate or staining.
101-3
EXECUTION
101-3.1
Preparation. Trim existing expansion joint material to a depth that will provide a ¼” space from the
top of the concrete slab to the top of the backer rod to be placed in the joint. The contractor shall remove all
loose debris, trash and organic material in the expansion joints. The concrete surface to receive the sealant
shall be properly cleaned and power washed with water, and meet the sealant manufacturer’s requirements.
Mask adjacent tennis court surface to prevent contact of sealant with adjoining surfaces, which would be
stained or damaged by such contact, or by cleaning methods required to remove sealant smears. Remove
tape after placement of sealant without disturbing joint seal.
101-3.2
Installation. Install joint backing material in expansion joints to a depth that will provide a ¼” space
from the top of the concrete slab to the top of the backer rod to be placed in the joint. Install in accordance with
the manufacturer’s written instructions.
Install joint sealant into the prepared expansion joints as recommended by the manufacturer’s written
instructions and as shown on the plans. Fill the expansion joints until the level of the sealant matches the
adjacent tennis court surface grades as shown on the plans.
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