HomeMy WebLinkAboutContract 33935 AMENDMENT NO. 1
STATE OF TEXAS § CITY SECRETARY CONTRACT NO.&Iicm
COUNTY OF TARRANT §
WHEREAS, the City of Fort Worth, a municipal corporation situated in Tarrant
County, Texas hereinafter called"City" and Camp Dresser &McKee Inc., here after
called "Engineer"made and entered into City Secretary Contract No. 27797(the
Contract) which was authorized by the City Council by M&C C-19114 on the 4th day of
June 2002.
WHEREAS, the Contract involves engineering services for the following project:
Village Creek Wastewater Treatment Plant
Trinity River Pipeline Crossing (Parallel Siphon)
Project Number P171-070171300040
CIP 00186
WHEREAS, it has become necessary to execute Amendment No. 1 to said
Contract to include an increased scope of work and revised maximum fee;
NOW THEREFORE, City and Engineer, acting herein by and through their duly
authorized representatives, enter into the following agreement, which amends the
Contract:
1.
Article I, of the Contract is amended to include the additional engineering
services specified a proposal letter dated November 4, 2005, copies of which are both
attached hereto and incorporated herein. The cost to City for the additional services to be
performed by Engineer total $ 333,113.
2.
Article II of the Contract is amended to provide for an increase in the maximum
fee to be paid to the Engineer for all work done and services performed under the
Contract, as amended, so that the total fee paid by the City for all work and services shall
not exceed the sum of$ 632,742.00.
3.
All other provisions of the Contract which are expressly amended herein sh
remain in full force and effect. `C'FFICIAL HMO
'vIff 3NVRE�iff
✓ R !
EXECUTED on this the lS4 day of , 2006 in
Fort Worth, Tarrant County, Texas.
ATTEST: CITY OF FORT WORTH
r
By
Marty Iiendrix Man. A. Ott
City.Secretary Assistant City Manager
_C- �.k U U
iontract A h zization APPROVAL RECOMMENDED:
Date
S. Frank Crumb, P.E.
Director,Water Department
APPROVED AS TO FORM AND CAMP DRESSER&MCKEE INC.
LEGALITY ENGINEER
B :
Assistant ity4omey Richard Sawey,P.E
Vice President
OFFICIAL KC00
CITY SRS Wy
�7, '31 u IH, yEK-
CDM
777 Taylor Street,Suite 1050
Fort Worth,Texas 76102
tel: 817 332-8727
fax: 817 332-6870
November 4,2005
Ms. Madelene Rafalko, P.E.
City of Fort Worth
Village Creek Wastewater Treatment Plant
4500 Wilma Lane
Arlington,Texas 76012
Subject: Revised Contract Amendment No. 1 for
Village Creek Wastewater Treatment Plant
Trinity River Pipeline Crossing Engineering Agreement
City Project Number P171-070171300040, City Secretary No. 27797
Dear Ms. Rafalko:
This letter is in response to the City's request to modify the scope of CDM's engineering
agreement for the subject project. Our understanding of the proposed changes in scope
include: expansion of the limits of the tree survey,inclusion of documents to inspect and
rehabilitate Boxes E/EE and D/DD, addition of construction documents for the installation of
washer/compactor no.5 at the Village Creek Wastewater Treatment Plant(Plant) Headworks
Facility, modifications to Bar Screen Building No.3, and Construction Management services
for construction of the siphon pipeline, structures,installation of the washer/compactor and
the modifications to Bar Screen Building No. 3. In additional to these proposed changes,
CDM is requesting the amendment include design work completed for the siphon project that
is outside the original scope of work. Presented below are the items completed that are out
of scope and the proposed work. A summary of the fee for all the items are contained on
Attachment 1.
I. Additional Work Performed:
A. Identification and Tagging of Trees within the Total Easement Area
For approval of the COE Regional Permit,negotiation of the loss of mitigation banking
credits and compliance with the City's new Tree Ordinance, a more detailed tree
survey,including identification and tagging of trees is needed. The estimate fee for
the tree survey is $$6,700.00, which is detailed on Attachment 1.
I MID
File 0515-46014 CO-1.0 va 7 ;7 p'PER, R(iq
consulting•engineering-construction-operations 7Uo .Y/-,'IIJ�V��I'L`IIITWEIIK's
CDM
Ms. Madelene Rafalko,P.E.
November 4,2005
Page 2
B. Boxes DDD, ED2 and ED3
The original design fee included the design of one junction structure connecting the
existing gravity sewer lines north of the river,one siphon line crossing the river, and
one connection at the future Box EEE. During the course of design the configuration
and dimensions of Box DDD was modified several times. The changes will give the
City more flexibility in the future and allow connection of future lines and siphon
easier. However, this is a condition not anticipated under the original scope of work
and the budget was exceeded for this item. Also,two additional structures were
added to the project Box ED2 and ED3. The expenditures for this additional work
including subconsultant's work are$24,200.00. A detailed breakdown is shown on
Attachment 2. A copy of the Subconsultant's correspondence regarding the additional
work is located at the end of this letter.
II. Additional Work to Perform:
A. Rehabilitation of Junction Boxes EE,D and DD.
CDM and subconsultant JQ will prepare construction documents, including
drawings and specifications for the rehabilitation of Junction Boxes D, DD and
EE. The repairs and improvements include the application of repair mortars to
the deteriorated concrete structures and the applications of a protective liner to
all interior concrete surfaces after repair.
This work will be included in the siphon plans. The rehabilitation will be
included in the bid proposal as alternate add items. Due to the straight
forwardness of the work and the accelerated schedule,only one submittal
(100% complete) will be made to the City.
During the bidding phase,CDM / JQ will answer questions and issue addenda
as appropriate to interpret,clarify,or expand the bid documents. CDM/ JQ
will also attend the prebid conference,bid opening and prepare a bid
tabulation. After review of the bids, CDM will provide a written
recommendation of award to the City.
F�1ClwI u,K"CO)X,
CI117 �5, P"I Via IF"!Y
0515-34653
CDM
Ms. Madelene Rafalko,P.E.
November 4, 2005
Page 3
The total estimated engineering fee for the rehabilitation of Junction Boxes EE
and D/DD is $35,737. The estimated is shown in detail on Attachment 1. A
copy of JQ's proposal is located at the end of this letter.
B. Installation of Washer/Compactor No.5:
Proposed work at the Headworks Facility for the plant includes installation of
a new washer/compactor, associated electrical and instrumentation additions
and modifications,and associated discharge piping for fine screen no.5. CDM
will prepare construction drawings and contract specifications for the addition
of Washer/Compactor No. 5. The construction plans from the HRC cannot be
used as they were based on a different Washer/Compactor model. This work
will be included in the siphon plans. Due to the straight forwardness of the
work and the accelerated schedule,only one submittal (100% complete) will be
made to the City.
CDM will provide a detailed opinion of probable construction cost for the
installation of the washer/compactor No. 5 and associated work.
During the bidding phase,CDM will answer questions and issue addenda as
appropriate to interpret,clarify, or expand the bid documents. CDM will also
attend the prebid conference,bid opening and prepare a bid tabulation. After
review of the bids,CDM will provide a written recommendation of award to
the City.
The total estimated engineering fee for the addition of the Washer/Compactor
No.5 is$20,833. A detailed estimate is shown on Attachment 3.
C. Modification to Bar Screen Building No.3:
The proposed work at Bar Screen Building No. 3 includes preparing
construction drawings and specifications for the following: n o.pA
O� K!"lG;dl
CITY
izc.e
CDM
Ms. Madelene Rafalko, P.E.
November 4, 2005
Page 4
• demolition of parshall flumes 5 and 6 and associated
instrumentation equipment,
• installation of 96-inch Hobas pipe to connect the 96-inch RCP
influent pipe to the bar screen structure,
• demolition of odor control ductwork, and
• odor control improvements for the building.
Odor control improvements for Bar Screen Building No. 3 consist of new FRP
ductwork and an exhaust fan to exhaust odors from parshall flume 7, the bar
screen room and the screening loading area. Field Surveying services are also
included to aid in preparation of the drawings.
This work will be included along with the Washer/Compactor portion in the
siphon plans. Due to the straight forwardness of the work and the accelerated
schedule, only one submittal (100% complete) will be made to the City. CDM
will provide a detailed opinion of probable construction cost for the
modifications at Bar Screen Building No.3.
During the bidding phase,CDM will answer questions and issue addenda as
appropriate to interpret,clarify,or expand the bid documents. CDM will also
attend the prebid conference,bid opening and prepare a bid tabulation. After
review of the bids,CDM will provide a written recommendation of award to
the City.
The total estimated engineering fee for the modifications to Bar Screen
Building 3 is $59,930. The detailed estimate is shown on Attachment 3.
D. Construction Phase Services
The construction phase services include the following:
a. Attending preconstruction conference, shop drawing review,providing
interpretations and clarifications of the Contract Documents to the
Contractor, and preparation of record drawings. This portion of the
construction phase includes the installation of the washer/compact
and the modifications to Bar Screen Building#3. Construction pha ��-��'�- �•�w�'�
CDM
IIs. Madelene Rafalko,P.E.
November 4, 2005
Page 5
services have not been included for the rehabilitation of the junction
structures. A construction duration of 15 months is anticipated to allow for
two possible dry weather periods. Our estimated engineering fee for the
construction phase services listed above is$39,641 and is detailed on
Attachment 4.
b. Part-time resident representation and attending monthly progress
meetings. This portion of the construction phase includes the following
work items;the siphon project, addition of washer/compactor no.5,
modifications to Bar Screen Building No. 3. The original design fee for the
siphon project did not include part-time resident representation as it was
thought the HRC construction and siphon construction would be
concurrent and would be observed within the HRC resident representation
budget.
A construction duration of 15 months is anticipated to allow for two
possible dry weather periods. Our estimated engineering fee for the
construction phase services listed above is$143,072 and is detailed on
Attachment 4.
Construction phase services do not include the rehabilitation of Junction Boxes D, DD and EE,
since these items will be alternative bid items. The fee for construction administration for the
rehabilitation of the boxes will be provided in a separate proposal after bidding and award.
For budgetary purposes,we can provide an estimated fee of$12,000 for construction phase
services for rehabilitation of the boxes. The total estimated engineering fee for the items
listed above is$330,113.
It is a requirement to have the COE Regional Permit prior to advertising the project for bids.
As you are aware, we are diligently working with COE to get comments on the permit
application and resolve any issues. It is desirable to have the permanent and temporary
easement documents signed prior to advertising for bids. However,in extreme cases, the City
has advertised the project with outstanding easement acquisitions.
We have provided an expedited schedule below to allow for accepting bids in early January.
0515-34653
CDM
Ms. Madelene Rafalko, P.E.
November 4, 2005
Page 6
This schedule is based on obtaining the Regional Permit prior to December 1, 2005.
Submit 100% complete drawings to City: November 23, 2005
Meeting to discuss plans and obtain comments: November 30, 2005
Advertise project for Bids: December 8th and December 15th
Accept Bids: January 5,2006
Estimated Contract Award: February 16, 2006
Construction Start: February 23, 2006
Please advise if you have questions or need additional information.
Sincerely, 1n
T' . W
qGetchetn . Williams,P.E.
Senior Project Manager
Camp Dresser & McKee Inc.
cc: David Townsend(City of FW)
Richard Sawey(CDM)
Amy Robinson(CDM)
0515-34653 CO-1.0
0515-34653
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City of Fort Worth, Texas
Mayor and Council Communication
COUNCIL ACTION: Approved on 8/8/2006
DATE: Tuesday, August 08, 2006
LOG NAME: 60TRINITY RIVER REFERENCE NO.: **C-21610
SUBJECT:
Authorize Execution of Amendment No. 1 to the Engineering Agreement with Camp Dresser &
McKee, Inc. for the Design of the Trinity River Pipeline Crossing at the Village Creek Wastewater
Treatment Plant (CIP 00186)
RECOMMENDATION:
It is recommended that the City Council authorize the City Manager to execute Amendment No 1 to the
engineering agreement with Camp Dresser & McKee, Inc., City Secretary Contract No. 27797, for the
design of the Trinity River Pipeline Crossing at the Village Creek Wastewater Treatment Plant, increasing
the total contract cost by $333,113.00, from $299,629.00 to $632,742.00.
DISCUSSION:
On June 4, 2002, (M&C C-19114) the City Council authorized the execution of an engineering agreement
with Camp Dresser & McKee, Inc., for the design and preparation of construction documents for a third
parallel siphon pipeline under the Trinity River to the Village Creek Wastewater Treatment Plant and an
upstream siphon interconnection structure, and the preparation of applications for Corps of Engineers
permits.
Proposed Amendment No. 1 is for Camp, Dresser & McKee, Inc., to provide construction administration
services and resident representation/inspection during the construction phase. This was not included in the
original design agreement as the project was scheduled to be constructed concurrently with the Village
Creek WWTP High Rate Clarification (HRC) Improvements with a single construction administration team
for both projects. However, this project was delayed to ensure plant staff had sufficient time to become
familiar with the new treatment process. Also, the construction process will require a tree survey to meet the
City's new tree ordinance.
In addition, the Engineer will design a larger upstream diversion structure to span the parallel 96-inch
pipelines with gates and stop logs to allow control of the downstream flow and two additional structures on
the new pipeline for improved access for maintenance of the siphons. As part of this work, the existing
siphon junction boxes will require rehabilitation due to severe corrosion. The Engineer will also design the
removal of Influent Flumes 5 and 6 for increased head-works capacity and the air scrubber modifications to
Bar Screen Building No. 3 necessary to improve the air quality in the building to provide a safe working
environment.
Camp Dresser & McKee, Inc. is in compliance with the City's MWBE Ordinance by committing to an
additional 20% MWBE participation on this Amendment No. 1. The City's goal on this amendment is 20%.
In addition to the contract cost, $10,000 is required for city staff review.
The Village Creek Wastewater Treatment Plant is located in COUNCIL DISTRICT 5.
http://www.cfwnet.org/council_packet/Reports/mc_print.asp 11/8/2006
Page 2 of 2
FISCAL INFORMATION/CERTIFICATION:
The Finance Director certifies that funds are available in the current capital budget, as appropriated, of the
Sewer Capital Projects Fund.
TO Fund/Account/Centers FROM Fund/Account/Centers
P274 531200 701300018630 $333,113.00
Submitted for City Manager's Office by: Marc Ott (6122)
Originating Department Head: S. Frank Crumb (8207)
Additional Information Contact: S. Frank Crumb (8207)
http://www.cfwnet.org/council_packet/Reports/mc_print.asp 11/8/2006