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TO: |
Board of Trustees |
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THROUGH: |
Jay Fox, Executive Director |
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FROM: |
Mary DeLoretto, Chief Service Development Officer |
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PRESENTER(S): |
Jared Scarbrough, Acting Director of Capital Construction |
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TITLE:
title
Change Order: Traction Power Substations (TPSS) Rehabilitation Change Order #009 Options 1 & 2 Cable Replacement (C3M Power Systems, LLC)
end
AGENDA ITEM TYPE:
Procurement Contract/Change Order
RECOMMENDATION:
Approve change order 009 to the TPSS Rehab Contract with C3M Power Systems and authorize Executive Director to execute the change order and associated disbursements for cable replacements in the amount of $2,563,081.
BACKGROUND:
UTA has an existing contact with C3M Power Systems LLC to design and rehabilitate its
Traction Power Substations. This contract was approved by the Board of Trustees on June 23, 2021 and awarded to C3M on June 24, 2021. The substantial completion date for this contract is April 11, 2025.
The Base contract with C3M included completing a cable assessment to determine whether positive and negative feeder cables needed to be replaced as part of this contract. This assessment has been completed and UTA /C3M have identified the need to replace the positive parallel underground feeder between TPSS SRD1 (Delta Center) and the end of the single contact wire section at 700 S (STA 750+02). Options 1B and 1C will replace the positive feeder cables originating from SRT2 (300 S) and SRD1 (Delta Center), respectively. Option 2L and 2M will replace the negative return cables from the wayside to SRT2 (300 South) and SRD1 (Delta Center), respectively. Additionally, field testing found that TPSS Units E1 and E2 had defective positive cables and SRS11 had negative return cable issues. These options were included in the original contract, with the ability to execute at UTA’s discretion.
DISCUSSION:
UTA Staff is requesting approval of change order 009 with C3M. It includes executing the contract options listed below for cable replacements at various locations:
Option 1B: SRT 300S - Will be replaced completely. This includes the parallel feeders
that interface with SRD1 Delta Center.
Option 1C: SRD1 Delta Center - Replaces the positive feeders completely.
Option 1D: E1 200 E - Will only replace a set of 3-500s that are feeding from DS-8 at
the pad mounted disconnect to the OCS feeder pole at STA. 22+44.
Option 1E: E2 900 E - Will only replace a set of 3-500s from DC Feeder Breaker F1 to
the pad mounted disconnect switch DS-16.
Option 2D: SRS11 Sugar Highway - Will only replace a set of 6-500s from the negative
cubicle to the termination on the tracks.
Option 2L: SRT 300 S and Option 2M: SRD1 Delta Center - Will be replaced
completely.
This change order also includes changing the DC Feeder Cable specification from a B Class to a G Class Flexible Strand. For all 500 MCM cables, both positive and negative shall be a G259 and for all 750 MCM cables, both positive and negative shall be G427 strand.
CONTRACT SUMMARY:
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Contractor Name: |
C3M Power Systems, LLC |
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Contract Number: |
20-03378-09VW |
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Base Contract Effective Dates: |
June 24, 2021 - April 11, 2025 |
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Extended Contract Dates: |
N/A |
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Existing Contract Value: |
$41,491,398 |
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Amendment Amount: |
$2,563,081 |
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New/Total Contract Value: |
$44,054,479 |
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Procurement Method: |
RFP best value modification |
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Budget Authority: |
Local & Federal Funds: TPSS/OCS Rehab Budget |
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ALTERNATIVES:
N/A
FISCAL IMPACT:
This budget is included in the 2022 Capital Program.
ATTACHMENTS:
Change Order: Traction Power Substations (TPSS) Rehabilitation Change Order #009 Options 1 & 2 Cable Replacement (C3M Power Systems, LLC)