HomeMy WebLinkAbout2/4/2015 - STAFF REPORTS - 2.J. I?ALMS..
�Z
c
c4`IF9��N`P City Council Staff Report
Date: February 04, 2015 CONSENT CALENDAR
Subject: APPROVAL OF CONTRACT CHANGE ORDER NO. 1 IN THE AMOUNT
OF $33,992.65 WITH GOLDEN VALLEY CONSTRUCTION FOR THE
CITY HALL AND POLICE STATION PARKING LOTS REHABILITATION,
CITY PROJECTS NO. 01-17 AND 13-34
From: David H. Ready, City Manager
Initiated by: Public Works and Engineering Department
SUMMARY
Approval of Contract Change Order No. 1 revises the scope of work for the repaving of
the Police Department parking lots due to the deficient condition of the existing asphalt
concrete pavement, for an additional cost of $33,992.65.
RECOMMENDATION:
1) Authorize the City Manager to Approve Contract Change Order No. 1 to Agreement
No. 6636 in the amount of $33,992.65 with Golden Vista Construction, Inc., dba
Golden Valley Construction for City Projects 01-17 & 13-34, City Hall and Police
Station Parking Lots Rehabilitation; and
2) Authorize the City Manager to approve and execute construction contract change
orders up to a cumulative amount of 10% of the contract amount ($92,748); and
3) Authorize the City Manager to execute all necessary documents.
BACKGROUND:
On December 3, 2014, the City Council awarded a construction contract to Golden Valley
Construction in the amount of $927,481.65 for the City Hall and Police Station Parking
Lots Rehabilitation, City Projects No. 01-17 and 13-34, (the "Project'). A pre-construction
conference was held on January 7, 2015, and construction began on January 20, 2015.
Construction was initiated at the Police Station parking lots, and the original scope of
work included a 1.5" grind and overlay of the existing asphalt concrete pavement.
ITEM NO. I J
ALM Sp9
iZ
u .n
do °
F°""�P City Council Staff Report
Date: February 04, 2015 CONSENT CALENDAR
Subject: APPROVAL OF CONTRACT CHANGE ORDER NO. 1 IN THE AMOUNT
OF $33,992.65 WITH GOLDEN VALLEY CONSTRUCTION FOR THE
CITY HALL AND POLICE STATION PARKING LOTS REHABILITATION,
CITY PROJECTS NO. 01-17 AND 13-34
From: David H. Ready, City Manager
Initiated by: Public Works and Engineering Department
SUMMARY
Approval of Contract Change Order No. 1 revises the scope of work for the repaving of
the Police Department parking lots due to the deficient condition of the existing asphalt
concrete pavement, for an additional cost of$33,992.65.
RECOMMENDATION:
1) Approve Contract Change Order No. 1 to Agreement No. 6636 in the amount of
$33,992.65 with Golden Vista Construction, Inc., dba Golden Valley Construction for
City Projects 01-17 & 13-34, City Hall and Police Station Parking Lots Rehabilitation;
and
2) Approve construction contract change orders up to a cumulative amount of 10% of
the contract amount ($92,748); and
3) Authorize the City Manager to execute all necessary documents.
BACKGROUND:
On December 3, 2014, the City Council awarded a construction contract to Golden Valley
Construction in the amount of $927,481.65 for the City Hall and Police Station Parking
Lots Rehabilitation, City Projects No. 01-17 and 13-34, (the "Project'). A pre-construction
conference was held on January 7, 2015, and construction began on January 20, 2015.
Construction was initiated at the Police Station parking lots, and the original scope of
work included a 1.5" grind and overlay of the existing asphalt concrete pavement.
Item No. 2.J .
City Council Staff Report
February 04, 2015— Page 2
Approve CCO#1 for City Hall and Police Station Parking Lots Rehabilitation
Immediately upon grinding the existing asphalt pavement, staff observed that the existing
pavement conditions were worse than anticipated, and that the asphalt concrete
pavement is only 2" thick, is severely cracked and unusually brittle. The grinding
operation caused additional damage and broke up the entire thickness of the asphalt
concrete pavement, and requires a revised scope of work to address the poor condition of
the pavement. Staff reviewed alternatives with Golden Valley Construction, and agreed
that the appropriate scope of work should remove the existing asphalt concrete
pavement, pulverized in place, and remixed into the sub-grade to a depth of 6", re-graded
and re-compacted and prepared for construction of a new 2.5" layer of asphalt concrete
pavement.
As the Project was staged with the Police Station parking lot as the first order of work,
staff authorized this change of the scope of work to minimize delay of the Project and
maintain project schedule, subject to approval of a Contract Change Order by the City
Council. Change Order No. 1 deletes the original 1.5" grind and overlay scope of work
and replaces it with pulverization of the existing full depth asphalt concrete pavement,
grading, export of excess materials, compaction of subgrade and placement of 2.5" of
asphalt concrete pavement. The revised scope of work will provide a much improved
finish product with a longer life cycle.
City Council Approval of Contingency Funds
Staff recommends that the City Council delegate authority to the City Manager to
approve and execute construction contract change orders up to an additional amount of
10% of the contract amount equivalent to $92,748. The Assistant City Manager/City
Engineer will carefully evaluate any additional or extra work claims presented by Golden
Valley Construction, and if valid, submit to the City Manager for his approval. In this
way, work can proceed uninterrupted as the City Manager and Assistant City
Manager/City Engineer administratively process construction contract change orders up
to the authority specifically delegated herein by the City Council.
FISCAL IMPACT:
The original scope of work for the Police Station parking lot rehabilitation included 1.5"
grind and overlay of the existing asphalt concrete pavement at a cost of $2.80 per
square feet — with a total of 51,681 square feet this original scope of work cost
$144,306.80. The revised scope of work includes pulverization of the existing asphalt
concrete pavement and construction of 2.5" asphalt concrete pavement at a cost of
$3.45 per square foot for a total cost of $178,299.45 — a difference of $33,992.65 (or
$.65 per square foot).
The City Council previously budgeted $886,000 from Fund 260 (Measure J
Improvements) for the City Hall Parking Lot Rehabilitation, and $300,000 from Fund 260
(Measure J Improvements) for the Police Station Parking Lot Rehabilitation. The
Project's overall budget, and estimated expenditures, are identified in Table 1:
02
City Council Staff Report
February 04, 2015— Page 2
Approve CCO#1 for City Hall and Police Station Parking Lots Rehabilitation
Police City Hall
Table of Project Costs Station Parking Lot
Parking Lot (49600)
49448
Measure J Fund $300,000 $886,000
Design Services $50,790 $49,930
Project Administration (through 1/27/15 $2,530 $2,526
Project Administration Estimated $2,500 $2,500
Construction Contract $172,642 $754,840
Change Order No. 1 $33,993 $0
Construction Contingency $17,264 $75,484
Remaining Balance $20,281 $720
Table 1
Funds to encumber for approval of Contract Change Order No. 1 in the amount of
$33,992.65 with Golden Valley Construction is available in Measure J account 260-
4500-59448.
Sufficient funds remain available in the Measure J accounts 260-4500-59448 and 260-
4500-59460 to facilitate the City Council's delegation of authority to the City Manager to
approve and execute construction contract change orders up to an additional amount of
$92,748.
SUBMITTED
Prepared by:
Marcus L. Fuller, PA, P.E., P.L.S.
Assistant City Manager/City Engineer
Approved by:
David H. Ready, Es .
City Manager
Attachments:
1. Change Order No. 1
03
Attachment 1
04
CITY OF PALM SPRINGS
k CONTRACT CHANGE ORDER
�'411FOAl+��
To: Golden Valley Construction Date: January 27, 2015
2000 Executive Drive Project No: 01-17 & 13-34
Palm Springs, CA 92262 Project: City Hall and Police Department
Tel: (760) 322-0010 Parking Lot Improvements
Fax: (760) 322-0020 Change Order No: 01
Purchase Order TBA
Attn: Bryan Willis Account 260-4500-59448
CHANGES IN WORK:
This Contract Change Order No. 3 accommodates additional work, generally identified as:
1. Delete Bid Schedule C item 13 at the Police Department Parking Lot. Replace with new item A.
Parking Lot and square foots es:
Parking AC
Lot Paving Area SF Price/SF Total
Bid Schedule C Grind &Overlay 1.5" $144,306.80
Item: 13 AC -51,681 $2.80
Pulverize/Grade/Pave $178,299.45
New Item: A 2.5"AC 51,681 $3.45
Total = $33,992.65
CHANGES IN COST:
New Item at Agreed Unit Price and Not-to-Exceed Price
1) City agrees to compensate Contractor for costs to add New Item A to pulverize, grade and pave. The costs
for the new item shall be based on a unit price of $3.45 per square foot. The total cost associated with this
item of work shall not exceed $33,992.65, inclusive of all mark-ups and profit.
CHANGES TO CONTRACT TIME:
No additional working days will be added for Contract Change Order No.1.
SOURCE OF FUNDS:
Funds are available in the following account(s): 260-4500-59448
05
Contract Change Order No. 1
January 27, 2015
Page 2
REASONS FOR CHANGE:
Schedule C, Item 13: Existing asphalt concrete paving at the Police Department Parking lot was too thin and
damaged to sustain surface grinding. For this reason the bid item for 1.5" grind and overlay is being deleted.
New Item A: Following an attempt to grind the existing asphalt concrete for overlay it was determined that an
alternate scope of work would be necessary. This unit price item is for 6" depth pulverization of the existing parking
lots (front lot and back lot), grading of pulverized materials to allow for a pavement depth of 2.5, export of excess
soil and grindings as necessary to achieve pavement subgrade elevations (includes trucking/hauling/disposal),
compaction of subgrade and placement of 2.5" of asphalt concrete.
All costs incurred to date including: attempts to perform surface grinding, canceled trucking (including 6 hour
minimum), pre-grinding of back parking lot (including all labor and equipment utilized in preparation of grinding
operation) and all mobilization costs for both front and back parking lots are inclusive in the unit pricing for New
Item A and no separate payment will be made.
SUMMARY OF COSTS:
Original Contract Amount: $ 927,481.65 Original Completion 60 Working Days
This Change Order: $ 33,992.65 Days Added 0
Previous Change Order(s): $ 0.00 Previous Days Added: 0
Revised Contract Amount: $ 961,474.30 Revised Completion 60 Working Days
**** SIGNATURES ON NEXT PAGE****
06
Contract Change Order No. 1
January 27, 2015
Page 3
1 have received a copy of this Change Order and the above AGREED PRICES are acceptable to Contractor
Tri-Star Contracting 11, Inc.
Signature Date
Printed Name and Title
City of Palm Springs
Recommended By:
Director of Public Works/City Engineer Date
Approved By:
David H. Ready, City Manager Date
Attest By:
Jay Thompson, City Clerk Date
Distribution:
Original Conformed Cop v: Conformed - File Copy:
Contractor (1) Engineering Pay File (1)
Citv Clerk (1) City Project File (1)
Purchasinq (1)
Finance (1)
07