Department: County Engineer
Department Head/Elected Official: Milton Rahman, PhD, P.E., PMP, CFM, ENV SP, County Engineer
Regular or Supplemental RCA: Regular RCA
Type of Request: Contract - Amendment
Project ID (if applicable): Job No. 23/0317; UPIN 19103MF12J01
Vendor/Entity Legal Name (if applicable): CE Barker Ltd.
MWDBE Contracted Goal (if applicable): 23%
MWDBE Current Participation (if applicable): 25.52%
Justification for 0% MWDBE Participation Goal: N/A - Goal is not 0% and is listed above
Request Summary (Agenda Caption):
title
Request for approval of a change in contract with CE Barker, Ltd. in connection with Bernadine Estates & Tower Oaks Sec 3 Subdivision Drainage Improvements - 2018 aka Bernadine Drainage Improvements Project, with an addition in the amount of $569.49, Job No. 23/0317-3, Bond Fund, UPIN 19103MF12J01, Precinct 3, MWDBE Contracted Goal: 23%, MWDBE Current Participation: 25.52%.
end
Background and Discussion:
The project is in northwest Harris County in the White Oak Bayou watershed. Bernadine subdivision improvements consists of roadside ditches that drain into HCFCD channel E132-00-00. The scope and proposed improvements are to regrade roadside ditches, install a storm sewer system under the ditches, upsize culverts, and reconstruct roadways within the neighborhood. A detention pond will be constructed to mitigate within the project limits. Improvements will comply with Harris County standards.
The Change in contract request new items for the following:
Relocation of Electrical Pole - Added New Item “Relocate of Electrical Pole” - additional cost for $17,989.97. Reimbursement for the contractor's payment to Center Pointe Electric for the relocation of cables and electrical pole in conflict with a with the installation of the 5’X3’ Reinforced Concrete Boxes and a 16 inches Force main between Station 19+64 East Morgan and the East End of the Detention Pond.
Substitute Lime/Fly ash for Cement Slurry Stabilization - Added New Items “Cement Slurry (Material Only)” and “Cement Slurry (6" Depth) (install)” - with an additional cost of $303,491.56. Deducted quantities from existing items “Lime/Fly ash Subgrade (6” Depth)” and “Hydrated Lime Slurry (2%) or Commercial Lime Slurry Assume (3% by dry weight - 20 lb./SY)” with a cost deduction of $303,400.00. The net addition of $91.56 reconciles actual quantities used in construction with the estimated quantities for completing the proposed scope of work. Change in contract is due to unforeseen field conditions. Contractor requested the EOR to provide a substitute for the required fly ash for stabilization since their manufacturer and others were unable to supply the product. The Geotechnical Engineer and the EOR recommended Cement Slurry. The EOR approved material submittal provided by the Contractor.
Manhole Removal on Station 16+44.56 - Added New Item “Remove and Dispose of Manhole” - additional cost for $ 4,108.98. At Station 16+44.56 on Mile Dr. where an existing manhole was located, the plan called for the installation of a new manhole. There was no existing contractual Bid Item tab for the removal of the manhole structure.
Reconciled Existing Storm Structure Items - additional cost for $210, 200.00 by adding quantities to existing items Item 40 “4x4 Junction Box with Mod Ty A Inlet”, Item 46 “TYA Inlet (Includes Concrete Apron)” and Item 52 “Safety End Treatments”. Deducted cost for $235,800.00 by deducting quantities from existing items Item 42 “6x6 Junction Box with Mod Ty A Inlet”, Item 41 “6x6 Junction Box “, Item 44 “Type C manhole”, Item 48 “Mod TY A Inlet” and Item 49 “TYC Inlets (Saddle Inlets)”. adjust the amount verify that the total CO is positive. The net cost of -$25,600.00 reconciles actual quantities used in construction with the estimated quantities for completing the proposed scope of work. Per petition of Precinct 3 the EOR reviewed Flow line elevations, Inlet types and added Safety End Treatments on plan sheets 29 thru 55.
Excavation for Clay Liner - additional cost for $359,160.00 by adding 11,972.00 CY to existing Bid Item 57 “Detention Basin Excavation”. Deducted cost for $359,290.00 by reducing 2318 Tons from existing Item 23 “HMAC Base Course (6" Thick Black Base)”. The net cost of -130.00 reconciles actual quantities used in construction with the estimated quantities for completing the proposed scope of work.
Remove and dispose of Inlet - Added New Item “Remove and dispose of Inlet” - additional cost for $ 4,108.98. On plan sheet 41 at Station 2+20.95 Lieder Dr there was an existing inlet that had to be removed for the installation of 24-inch Reinforced Concrete Pipe. There was no existing contractual Bid Item tab for the removal of the inlet structure.
Expected Impact:
This project seeks to reduce flooding and strengthen resiliency in Harris County by assisting in the alleviation of structural flood damage to homes in the Bernadine Estates & Tower Oaks Sec 3 subdivision.
Alternative Options:
The County could elect to fund the requested task or choose to reject it. However, if not approved, the contractor will not be able to complete the original scope of work.
Alignment with Goal(s):
_ Justice and Safety
_ Economic Opportunity
_ Housing
_ Public Health
X Transportation
X Flooding
_ Environment
_ Governance and Customer Service
Prior Court Action (if any):
|
Date |
Agenda Item # |
Action Taken |
|
08/29/2023 |
23-4740 |
Transmittal by Purchasing of a project scheduled for advertising |
|
10/10/2023 |
23-5860 |
Contract Awarded |
|
04/23/2024 |
24-2241 |
Change Order Approved - 23/0317-1 - Bond Fund |
|
06/25/2024 |
24-3742 |
Change Order Approved - 23/0317-2 - Bond Fund |
Location: Bernadine Estates & Tower Oaks Sec 3 Subdivision
Address (if applicable): N/A
Precinct(s): Precinct 3
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Fiscal and Personnel Summary |
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Service Name |
Engineering |
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Current Fiscal Year Cost |
Annual Fiscal Cost |
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Labor |
Non-Labor |
Total |
Recurring Expenses |
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Funding Sources |
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Existing Budget |
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1080 - Infrastructure Fund |
$ |
$569.49 |
$569.49 |
$ |
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Choose an item. |
$ |
$ |
$ |
$ |
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Choose an item. |
$ |
$ |
$ |
$ |
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Total Current Budget |
$ |
$569.49 |
$569.49 |
$ |
|
Additional Budget Request (Requires Fiscal Review Request Form) |
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|
Choose an item. |
$ |
$ |
$ |
$ |
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Choose an item. |
$ |
$ |
$ |
$ |
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Choose an item. |
$ |
$ |
$ |
$ |
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Total Additional Budget Request |
$ |
$ |
$ |
$ |
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Total Funding Request |
$ |
$569.49 |
$569.49 |
$ |
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Personnel (Fill out section only if requesting new PCNs) |
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Current Position Count for Service |
- |
- |
- |
- |
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Additional Positions Request |
- |
- |
- |
- |
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Total Personnel |
- |
- |
- |
- |
Anticipated Court Date: August 06, 2024
Anticipated Implementation Date (if different from Court date): N/A
Emergency/Disaster Recovery Note: Not an emergency, disaster, or COVID-19 related item
Contact(s) name, title, department: Erwin Burden, P.E., CFM, Senior Director of Capital Project Infrastructure, Harris County Engineering Department
Attachments (if applicable): Change in Contract (CIC)