HomeMy WebLinkAboutItem No. 10 PPP Project P2-110 " `_ - _ ' _ err � --1_- .._�-}� .:1 �i ' � � _ ,�y :� '• I� I� �ej' 1 - r -
`� November2018
1
I
!T
49
Nam
LM
t4l
J f
I,
N
am
L r
VL
VL
ol
1
C� -ILW
P2 =98A Future Construction Area
•�.a PRIMARY SLUDGE PRIMARY CLARI�:IFRS DrE
STATION D/E ELEC IHICAL Al:ll DJNG
qL
1dC
PC-D
PAGE JF. t _
EN A
'IJ�Y
PC-G
PRIMARY CLARIFIERS F,'G -
P EL_FCTR+CAL BUTLDING
PRIMARY SLUDGE PUMP
�.1.
STATION FIG
VB-4
DC-F
-
-
I�8' PIJS
WASTE SIDESTREAM
PUMP STATION C
► JN?4
a
Demolition Work
o �
� f
ra __ ��� tom^ - - e::Ge. s �' _ ��i1.....CII�. "_♦^.' � . _ .
T�v
RT 4
�1. •
I
T syg?
.Fi
a � R
�: �O-C1WRA-]�? �9 et9 ' OgD� o�Q SC-03
Major Construction Changes
• Unidentified and unknown utilities - $240K
• Hazardous materials not anticipated - $89K
• Isolation of structures for demolition - $ 102K
• Added pipeline demolition work — $ 166K
• Added air compressor identified in the Plant Air
System Master Plan, an urgent need - $212K
• Existing motor control center retrofit - $33K
Major Construction Credit Changes
• Conduit Routing Tunnels — ( $83K) .
• Eliminate Electrical Ductbanks — ( $64K)
• UPS Distribution Program Coordination — ($ 220K)
• Pavement Credit due to P2-98A Project — ( $TBD)
Contract and ContingencyStatus
Contract Status
Original Construction Contract $16,730,000
Current Percent Complete 60%
Projected Final Completion August, 2019
Contingency Status. Amoun-ta;
Authorized Contingency $1,338,400 8.0%
Approved Changes $576,400 3.4%
Pending Changes $647,500 3.9%
Remaining Contingency $114,500 0.7%
Additional Contingency Requested $836,500 5.0%
Total Requested Contingency $2,174,900 13.0%
CIP Program Construction
Contingency
• Construction change order rate since 2008 is 5 . 3%.
• CIP Program risk is increasing due to unknown
conditions in rehabilitation and collections projects.
• Significant efforts reduce risks in design where it is
cost-effective .
• Utility searches, updated technology
• Design and constructability reviews
Recommended Action
• Approve a contingency increase of $836,500 (5%) to the
construction contract with Flatiron West, Inc., for a total
contingency of $2, 174,900 ( 13%) .
-:� Ali
11 _f��f - _ "�CC�:iA
1 1 ' �� a