CF-Allen Rd Park-SP040310PAGE 05/i8
Specifications
THE CITY OF COPPELL
ALLEN ROAD PARK LAKE
MASONRY WALL REPAIRS
By
Glenn W. Campbell P.E.
4201 Spring Valley Road Suite 1120
Dallas, Texas 75244
469-374-0810
The City of Coppell
Allen Road Park Lake
Masonry Wall Repairs
INDEX OF DRAWINGS
Sheet # Summary of Contents
Figure 1 Aerial Photo View of All, rt._Road Lake Park
( Fi' u"e:'A I""" Vlew °"ta"e .
~.._~Fignre 2B Plan View of Lake Showing Construction Access and Staging
Area ~ j
Figure 3 -- Wall S'~tion Showing M~,sonry Repair
Figure 4
Photos I - 2
Photo 3
Photos 4 - S
Photos 6 - 7
Photos 8
Photo 13
Photo 14- 22
Wall Section Showing Foundation Remediation
Photo of Lake and Wall with Water Level at Toe of Wall
Typical Masonry Cap
voids Behind Wall
Failed Masonry at Storm Drain Pipes
Failed Masonry at Station 12+00
Failed Masonry at Station 0+70
Toe of Wall at Several Locations
~ ~ _~'~'*,~'~"~:"~ -,;~:% .~.~o~%.,.'.~;~,,~
~ ~ '/:,~ ~/~1, ~;~'~"
.:~ ~'~ ~I.! ~-
~lo~n ~. ~a~pb~ll, P.[.
~o~ sp~i~g w,,w ~d. Mason~ Wall Repairs
Suite 1120
o~,~, Tx ~2~ Allen Road Park Lake
?e~: 469-37~-0e~o The City of Coppell
Fax: 469-374-0811
.............. *u=~¢~uez~ GWC ENGZNEERZNG P~GE 88/18
KEY
Construction
Acce~ and
Staging Area
,~lenn W. Campbell, P.E.
4201 Spring Valley Rd
Suite 1120
Dallas, TX 75234
Tel: 469-374.0810
Fax: 469-374-0811
E-mail; gwcengrL~cs corn
Scale: None
Masonry Wall Repairs
Allen Road Park Lake
The City of Coppell
By: BB I Dale: 03/10/04
Figure 2B
PAGE 89/18
TO REMAIN
APPROX. WATER
!' LEVEL % ~)'-~---~ EI .~ IEXIST CONC.
· ~ IWALL
~ ~~ ~ ~f · REP~CED STONE
~YER ~0 NOT USE JACK HAMMER OE
Glenn W. Compbe]l,
~321 Towerwood Drive MASONRY WALL REPAIRS
s~it. ~o. ALLEN ROAD PARK ~KE
Dolles, TX 7525~
T~: 97~-.0S-~9~ THE CI~ OF COPPELL
Fox: 972-245-5446
~-m~il: gwcengr~cs.co~
I
Stole:
= 1'-0"~ By: CMN Dote: 01/26/04 Figure 3
ud/i~xzee4 ii:bb 4b~37dDSll GWC ENGINEERING RAGE 10/18
APPROX. WATERL.
EXIST. MASONRY ~ L
/
~ PROPOSED
~ ~ ;~ ~ ~~ ~BRATE CONCR~E TO
· -- /~ r ~m~NSUEE FILLING OF VOID
[ .l/~ / ~UNDER ~ONRY
L IW~THERED sH~T AND/OR HAND EXCAVATE;~
Glenn W, Campbell, P E.
3321 Towerwood Dray. MASONRY WALL REPAIRS
s~t~ ~o. ALLEN ROAD PARK ~KE
OolJ~s, TX 75254 THE CI~ OF COPPELL
Teh 972-406-0~g8
Fax: 972~243-3446
E-moih gwcengr~cs.co~ ~
Scole:l" = 1'--0" By: CMH Dote: 01/26/04 Figure 4
PAGE ii/iS
P.4~T 1.
1.1
SECTION 01010
SUMMARY OF WORK
GENERAL
Work covered by Contract Documents
The work covered by th. ese contract documents consists &repairing and
remethating thc rock masonry facade perimeter wall forming the Allen Road Park
Lake in Thc City of Coppell, Texas. Figure ! shows an aerial photo p/an view of
thc lake and adjoining rcsident/al subdivisions and streets. Figure 2 shows the lake
and retaining wall stationed in 100 foot stations. Station 0'00 occurs at a temporary
dike in thc channel and the stationing increases clockwise around the lake to the end
of thc project at Station 134-40. The height of thc wall measured from the top to the
toe of the wall is shown at each 100 foot station. The normal pool water level is
shown on the figuxe, and is approximately 3 feet below the top of the wall. Hence,
the submerged portion of the wall is the di fferenec between the wail height
measurements ,'md the nominal 3 foot water level.
In several places the rock faq:ade has broken along horizontal mortar joints and
displaced vertically caused by deterioraticm ut'the shale foundation. The rock above
the mortar joint remains intact. Locations where this has occurred are shown on
Figure 2; i) 85 feet at Sta 0+25 to Sta 1+10 (approximate), ii) 2,1 feet at Sta 7+80,
iii) 21 feet at Sta 11+00, and iv) 137 feet at Sta 11+30 to 124-67. Figure 3 shows tlne
repair for this condinon, which consists of r;,,oving thc broken roc~ti___ng a
may choose m salvage me ex~~~
Over the remainder of the wall, remediation of the rock faqade consists of
constructing a continuous concrete foundation to prevent the occurrence of futuro
failures. Figure 4 shows the requirements for constructing the new concrete
The ~e approximate. These '5..,
quantitie~pth inspection of the
fail~ginee~ing after the
4 l~d on h~s schedulc
values~to ac oc unt for the modifieat'ons~, ~ tothe quantities. ~.~
Both repairs and remediation reqmre e to expose
the toe of the rock facade. Lowering and maintaining thc water lever will be the
responsibility of the contractor performing this work. There currently exists a dike
in the channel on the south end of the lake which was installed in December to
lower the water level to investigate the facade failures. The material used to
construct the dike is the property of the contractor who prov/ded the serv/ces to
lower the water level, It shall be the contractor's responsibility to negotiate with the
previous contractor for thc use of this material.
All ,excavated material, excess mortar, stone, and every other excess material not
X~used in thc construction of the project shall be removed and disposed offsite by the
Udzl~zZ~g~ ii:bb 4b~J/a~ii GWC ENGINEERING P~GE i2/i8
SECTION01010
SUMMARY OF WORK (Con,hued)
Additional miscellaneous repairs shall also include i) backfilling two voids located
behind the retaining ~vall (Stations 0+62 and 1+58) with flowable fill and ii)
removing silt and debris from the lake bottom directly in front of three small
diameter storm drain pipes located below the water line (Stations l +58, 7+70,
10+92).
Access to the lake and wall will be pe,,,itted from four locations identified on
Figure 2: a) 50 foot wide constraction easement from Allen Road; b) 50 foot wide
construction easement from Andover Lane; c) 20 foot wide construction easement
from Aberdeen Court; d) 50 foot wide construction easement from the alley behind
Woodlake Drive. The contractor will not be permitted to park veh/cles or store
materials in the streets or alleys. All parking, material storage, and staging must be
accomplished within the designated construction easements, or other areas if prior
apl:n'oval is obtained. The contractor will be responsible for restoring the vegetation
to original condition (full sodding w/th living grass) in thc access casements after
construction is complete. The contractor vall be responsible for coordinating with
the City of Coppell in and around City owned landscape irrigation pipes and heads.
The contractor will be responsible for repmring broken landscape irrigation pipes
and sprinkler heads resulting from the contractor's operations - if the irrigaion line
is pressurized during the construction period, the repairs must be made immediately:
if the irrigation line is not in use during the construct/on per/od, the repairs must bc
made prior to final acceptance.
A four foot high metal fence fully encloses thc lake with a gate at approximate
Station 1+75. The contractor will be permitted to remove single panels in the metal
fence for access conditioned upon the following: a) the removed panels must not be
damaged and must bc safely stored and protected; b) the removed panels must be
replaced when thc work ~s complete; c) upon replacement, the panels must be seal
welded where they were cut, welds ground smooth, and repainted to match thc
intact fence: d) the contractor must securely close the openings created by removing
the fence panels with approved temp~ary construction fencing during the
construction period and clearly Dost no-entry warning signs on the temporary
fencing. The contractor shall be responsible for complying with all Federal
(OSHA), State, and Municipal regulations and ordinances to assure safety of the
general public at all times during construction.
Thc complete scope and details of work is included in thc construction draw/rigs
and specifications.
Scope of work shall includc protection of all existing appurtenant items not
designatcd to be removed. Any damaged area or appurtenance shall be replaced by
Contractor at no cost to the Owner.
Thc scope shall also include adequate fencing and all other safety measures as
required to allow safe operation of traffic function during the conslruction period.
The scope shall also include complete protection of existing utilities, building
foundations, sidewalks, landscaping and vegetation, trees, and all other elements on
the site dUnng the construction Operatmn.
Contractor Qualification
1. Contractors interested in bidding this work must ¼sit the site and verify all s~te
conditions.
01010-2
SECTION 01010
SUMMARY OF WORK (Continued)
].2
F. Contractor's Duties
1. Contractor is to furnish ali permits, materials, consttmction barricades,
temporary fencing, equipment, and labor necessary to completc the wall repairs
as indicated on the project drawings and specifications for a finished product
ready for its intended use.
2. Securing and paying for, as necessary for execution and completion of the
work, any permits, licenses, and taxes.
3. Complying with all applicable laws. codes, ordinances, rules, regulations.
orders, and/or other requirements of public authorities in connection w/th
performance of the work.
4. Properly submitting written notice to the Engineer or Owner's representative of
an)' observed variances in the Contract documents from known requirements of
any public authority.
a. It is not the Contractor's responsibility to make certain that the Coneract
documents comply W~th codes and regulations.
b. Appropriate modifications to the Contract documents will be made to
reflect any changes necessary because of such variances.
5. Assuming responsibility for the work known to be contrary to such
requirements, without notice.
6. Enforcing strict discipline and good order among employees and not grnploying
on the work unfit persons or persons not skilled in the task to be performed.
7. Checking Dimensions at the Site
a. Verify all measurements before ordering any materials or doing any
work.
b. Report any discrepancies to Engineer or Owner's representative before
proceeding.
c. No extras will be allowed for variations from drawings in existing
conditions.
8. Approval of Working Surface
a. Notify the Engineer or Owner's representative of any unsatisfactory
condition before performing work over work of other contractors.
b. Beginning of work by any Contractor shall cons~tute his acceptance of
previous work.
Contractor's Use of Premises
A. Confine operations at site to areas pcrnmtted by law, ordinance, permits, and as
shown on Contract documgnts.
B. Do not unreasonably encumber site with materials or equipment.
C. Assume full responsibility for protection and safekeeping of products stored on
premises.
D. Obtain and pay for use of additional storage or work areas needed for operations.
END OF SECTION
01010-3
.......... ~.~u ~o~ol~u~ii GWC ENGINEERING RAGE 14/18
PART 1.
1.1
SECTION 01040
PROJECT COORDINATION
GENERAL
REQUIREMENTS I~CLUDED:
A. Coordination of Work.
B. Coordination meetings.
1.2
1.3
RELATED REQUIREMENTS
A. SECTION- 01070: Cutting and Patching.
B, SECTION- 01200: Project Meetings,
C. SECTION- 01340: Submittal Procedures.
D. SECTION- 015 I0: Temporary Facilities and Controls.
E. SECTION- 01640: Substitutions and Product Options.
F. SECTION - 01700: Con~'act Closeout.
DESCRIPTION:
General:
1. Contractor shall prepare and submit for Owner's approval a complete Work Plan
of the entire construction process. The plan shall include complete coordination
with the Owner for site operations, noise control, and ail other aspects of the
construction operations. Upon receipt from Owner, Work Plan shall include
spccific steps to be taken by the Contractor in the event unforeseen or emergency
conditions are encountered during the work.
2. Coordinate scheduling, submittals, and work of various scctions of
Specifications to assure cPficicnt and orderly sequence of installation of
cons~ructmn elements, with provisions for accommodating items to be installed
later.
Coordinate sequence of Work to accommodate Owner's functions of the
pr¢inlses.
Conduct pre-installation conferences of each unit of Work which requires
coordination with Owner's work.
Coordinate construction operations included under different Sections of the
Specificat:ons that are dependent upon each other for proper installation,
connection, and operation.
1. Where installation of one part of the Work is dependent on installation of other
components, either before or after its own installahon, schedule construction
activities in the sequence required to obtain thc best results.
01040-1
1.4
1.5
I¸6
SECTION O] 040
PROJECT COORDINATION (Continued)
2. Where availability of space xs limited, coordinate installation of different
components to assure maximum accessibility for required maintenance, service
and repam
3. Make adequate provisions to accommodate items scheduled for later installation.
MEETINGS
Hold coordination meetings and pre-installation conferences with personnel and
subcontractors to assure coordination of Work. Generally conduct meetings in
accordance w/th Section 0 ! 200.
Coordination Meetings
1. Conduct coordination meetings among subcomractors, suppliers and other
concerned entities as ncccssary to establish and maintain coordination and
schedules, and to resolve conflicts, interferences and otlaer matters in dispute.
2. Conduct coordination meetings among subcontractors prior to production of
coordination drawings to resolve major interferences of systems.
3. Conduct coordination mcehngs anaong subcon~'actors to review, revise, eon'ret
and approve coordination drawings.
Pre-Installation Construction Con[crences:
1. Conduct a pre-installation conference at project site prior to inst, llation of each
unit of work which requires coordination with other work. Installer and
representatives of manufact~trers and fabricators who are involved in or affected
by that trait of work, and with its coordination or integration with other work that
had preceded or will follow, shall attend this meeting. Notify Owner and
Engnneer of scheduled meeting dates at least 45 hours in advance.
2. At each meeting, review progress of other work and preparations for particular
work under construction.
3. Record minutes of each conference, including resolutions, anresolved problems,
and final plm3.s of action. Distribute meeting minutes promptly to everyone
concerned, including Owner a.nd Engineer.
4. Do not proceed with affected work if pre installation conference cannot be
successfully concluded. Initiate ~tions necessary to resolve problems that
prevent progress of the Work. Reconvcne pre-installation conference at earliest
possible date to resolve problems and prevent de]ays in the Work.
COORDINATION OF SUBMITTALS:
Ar Schedule and coordinate submi~als of work shown on coordination drawings.
B. Coordinate work of various sections having interdependent responsibilities for
installing, connecting to, and placing m services, such equipment.
Review Shop Drawings of elements for coordination w/th other work and with
existing structure, systems, and materials.
1. Vet/fy dimensions and locations of new work with rc]ation to existing structure,
systems, and materials.
2. Verify dimensions and locations of block-outs, openings and sleeves for
mechanical and electrical work penetrating new work.
COORDINATION OF WORK AREA:
01040-2
SECTION 01040
PROJECT COORDINATION (Continued)
Coordinate use of Project area and sequence of installation of all work which is
indicated diagrammatically on Drawings. Utilize space efficiently to maximize
accessibility for other installations, for maintcnance, and for repairs.
1.7
COORDENATION OF CONTRACT CLOSEOUT:
A. Coordinate completion and cleanup of work of separate sections in preparation for
Pre-Final Inspection.
B. Coordinate access to site for correction of defective work and work not in
accordance with Contract Documents, to minimize disruption of Owner's activitms.
C. Coordinate closeout submittals, starting of systems and instructions to Owner's
pcrsonnel.
1.8 SUBMITTALS
A. Submit one copy each of approved coordination drawings to Engineer and Owner for
information only, prior to start of work, in accordance W~th Section 01340.
PART 3 - EXECUTF. ION - NOT USED
END OF SECTION
01040-3
SECTION 01400
TESTING LABORATORY SERVICES
PART 1 GENERAL
1.1 Description
1.3
Work inc!uded:
1 During progress of work, the Owner shall require testing to be performed to
determine tha~ materials provided meet specified requirements. Such testing
includes, but is not necessarily limited to:
a. Normal Wmght Concrete
b. Mortar.
Related Work Described Elsewhere:
I. Rcquirements for testing may be described in various specification sections.
Where no testing requirements arc described, but Owner decides it is required,
testing shall be performed under current pertinent testing standards.
Testing Laboratory:
1. The Testing Laboratory will be selected by thc Contractor, and approved by the
Engineer and the Ow'ncr.
Quality Assurance
Qualifications of Testing Laboratory:
1. The Laboratory will be qualified in accordance with ASTM E-329-70
"Recommended Practice for Inspection and Testing Agencies for Concrete and
Steel Used m Construction."
Codes and Standards:
Testing: In accordance '~4th pernncnt codes and regulations and with selected
standards of the American Society for Testing and Materials.
Product Handling
Promptly process and distribute test reports and related instructions to assure
necessary re-testing and/or replacement o£ materials with least possible delay in
work. Verbal results shall be given to Project Superintendent prior to Laboratory
Representative leaving site, where applicable.
PART
2.1
PRODUCTS
Payment for Testing Services
A. Tnitial Services:
I. Paid for by the Contractor.
B. Re-testing:
01400-1
2.2
2.3
PART 3
3.1
3.2
3.3
SECTION 01400
TESTING LABORATORY SERVICES (Continued)
When initial tests indicate non-compliance with Contract Documents,
subsequent re-testing shall be performed by the same laboratory and costs
thereof be I~aid for by the Contractor.
Code Compliance Testing
Inspections and tests required by codes or ordinances, or by plan approval authority,
and made by a legally constituted authority shalI be the responsibility of and shall
be paid for by the Contractor
Contractor's Convenience Testing
A. Inspection or testing performcd exclusively for thc Contractor's convenience shall
be the sole responsibility of the Contractor.
EXECUTION
Cooperation with Testing Laboratory
Representat/ves of Testing Laboratory shal) havc access to Work at all rimes.
Facilities for such access shall be provided in order that Laboratory may properly
pcrfoiin its functions,
Schedules for Testing
Establishing Schedule:
1. Determine with Laboratory time required to perform tests and issue findings
2. Provide required time in construction schedule
Rev/sing Schedule:
1. Coordinate changes of schedule with Laboratory as required. Testing
Laboratory shall provide a 24 hour phone number to enable the Contractor to
remse the schedule at times other than regular business hours.
Adherence to Schedulc:
When Laboratory is prevented from testing or taking specimens according to
thc determined schedule due to incompleteness of work. extra costs attributable
to delay si~all be paid [or by the Contractor.
Taking Specimens
Testing Laboratory shall Perform the Following Services:
I. Take samples and specimens as directed
2. Furnish sampling equipment and personnel
3. Deliver specimens and samples to laboratory
E.¥D OF SECTION
01400-2