Item 03 - Williamson Creek Wastewater Interceptor Construction Services — original pdf

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Item 3 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 Posting Language ..Title Recommend approval to authorize a contract for construction services for Williamson Creek Wastewater Interceptor for Austin Water with Williamson Creek Constructors JV in the amount of $125,580,000 plus a $12,558,000 contingency for a total contract amount not to exceed $138,138,000. Funding: $138,138,000 is available in the Capital Budget of Austin Water. ..Body Lead Department Austin Financial Services. Managing Department Austin Capital Delivery Services. Fiscal Note Funding is available in the Capital Budget of Austin Water. Procurement Language: Austin Financial Services issued a Competitive Sealed Proposal solicitation CSP 6100 CLMB342 for these services. The solicitation was published on June 30, 2025, and closed on October 14, 2025. Of the four offers received, the proposal submitted by the recommended contractor submitted the best value to the City based on the solicitation's evaluation criteria. A complete solicitation package, including a log of offers received, is available for viewing on the City’s website. This information can currently be found at https://financeonline.austintexas.gov/afo/account_services/solicitation/solicitation_details.cfm?sid=138666 . MBE / WBE: This contract will be awarded in compliance with City Code Chapter 2-9A (Minority-Owned and Women- Owned Business Enterprise Procurement Program) by meeting the goals with 9.04% MBE and 1.48% WBE participation. Prior Council Action: May 4, 2023 – Council authorized use of Competitive Sealed Proposal Method of contracting as the type of Alternative Delivery Method, Item 8, Resolution No. 20230504-008 Approved on Consent without objection. Council Committee, Boards and Commission Action: January 14, 2026 – To be reviewed by the Water and Wastewater Commission. Additional Backup Information: The wastewater collection system is essential for conveying wastewater to the treatment plants. Due to growth in Austin and material degradation from the harsh wastewater environment, existing collection system assets require repair and replacement. The Williamson Creek Wastewater Interceptor project will replace an existing wastewater pipeline along and near Williamson Creek and includes the construction of approximately 18,800 linear feet of a new 72-inch diameter gravity interceptor. This project will be utilizing trenchless construction methods with the large majority of the installation being completed as a tunnel. The project also includes the construction of a new biological odor control facility, where feasible the removal of the existing wastewater infrastructure that is being abandoned, environmental restoration of any affected project areas, and the conveyance of four acres to Austin Park and Recreation as well as an additional acre of trail easements.  Item 3 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 The project extends along Williamson Creek from just east of Pleasant Valley Road to South First Street. Due to the potential for unforeseen conditions underground along the 3.5-mile tunnel, a 10% contingency in funding has been included to allow for the expeditious processing of any change orders to cover any unforeseen construction costs associated with the project. Parts of the construction will be on City parkland. Williamson Creek Greenbelt trails will also be temporarily affected in certain areas, restricting public access along the creek. All disturbed areas will be restored by project completion. Most of the construction will occur along the creek, but there will be some localized traffic impacts in residential neighborhoods. Austin Water will provide advance notice for any local construction impacts to roads or properties and the contractor will install appropriate traffic signs and barricades to direct traffic. If this contract is not approved, construction would be delayed prolonging the replacement of aged infrastructure that may lead to the potential of overflow events. The contract allows 1,372 calendar days for completion of this project. This project is located within zip codes 78744, 78745 (Districts 2, 3).  Item 3 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 M/WBE Summary Public notice was given for this solicitation CLMB342 - Williamson Creek Wastewater Interceptor, through the City’s Financial Services website, Austin Finance Online. Four offers were received and opened on October 14, 2025. Of the four offers received none of the firms submitting were certified MBE/WBE. Williamson Creek Constructors JV, Livonia, MI Posillico Civil, Inc., Farmingdale, NY Super Triad JV LLC, Menomonee, WI Atkinson/SAK JV, Austin, TX Base Proposal $124,585,000.00 $124,674,324.45 $134,900,000.00 $193,657,901.00 Base Proposal + Allowances $125,580,000.00 $125,674,324.45 $135,895,000.00 $194,653,901.00 The offeror’s choice of work methodology provides for 10 areas of subcontracting opportunities which are listed below. Project specific subgoals stated in the solicitation were 1.74% African American; 6.82% Hispanic; 0.48% Native/Asian American, 1.48% WBE. Total participation estimated on base proposal amount: 1  Item 3 Water & Wastewater Commission: January 14, 2026 Council: January 22, 2026 Base Proposal: $ 124,585,000.00 PRIME NON M/WBE TOTAL Williamson Creek Constructors JV $ 104,685,000.00 84.03% MBE TOTALS - SUBCONTRACTORS $ 11,265,000.00 9.04% African American Subtotal Unism Development Co. Inc., Austin, TX (Construction, Pipe) Lewis Clark Trucking, LLC, Austin, TX (Hauling Services) $ $ $ 2,165,000.00 1,925,000.00 240,000.00 Hispanic Subtotal Melendrez Trucking, LLC, Austin, TX (Hauling services) Underground Water Solutions Co., Elgin, TX (Construction Services Heavy) Native/Asian American Subtotal BenQwest, LLC, Austin, TX (Fuel Diesel) WBE TOTALS - SUBCONTRACTORS Champion Fuel Solutions, Bedford, TX (Fuel Diesel) Jecker Fields Service Inc., San Marcos, TX (Arborist Services) $ $ 8,500,000.00 2,500,000.00 $ 6,000,000.00 4.82% $ $ 600,000.00 600,000.00 $ $ $ 1,850,000.00 1,000,000.00 850,000.00 0.48% 0.48% 1.48% 0.80% 0.68% 1.74% 1.55% 0.19% 6.82% 2.00% NON MBE/WBE TOTALS - SUBCONTRACTORS $ 6,785,000.00 5.45% Pacific International Grout Co., Bellingham, WA (Pipe, Back filling) T. Gray Utility & Rehab Co., LLC, Houston, TX (Grout Pipe and Sewer) Stolz Mechanical Contractors, LLC, Washington, TX (Backfill, Digging, Steel Structures) $ 6,000,000.00 4.82% $ 675,000.00 0.54% $ 110,000.00 0.09% The offeror submitted a MBE/WBE Compliance Plan that demonstrated a Good Faith Effort and was approved by the Small and Minority Business Resources Department. Second and third evaluated proposals information is provided. SECOND offeror – Posillico Civil, Inc, Farmingdale, NY 76.15% NON M/WBE prime participation; 1.84% African American; 5.75% Hispanic; 0.65% Native/Asian American; 1.39% WBE; 14.22% Non M/WBE subcontractor participation. $124,679,324.45 THIRD offeror – Super Triad JV LLC, Menomonee, WI 73.71% NON M/WBE prime participation; 1.78% African American; 4.40% Hispanic; 0.44% Native/Asian American; 1.44% WBE; 18.23% Non M/WBE subcontractor participation. $134,900,000.00 2 Council Meeting: January 22, 2025 Water and Wastewater Commission: January 14, 2026 File ID: 26-2713 Item 3 Williamson Creek Wastewater Interceptor CIP ID 6943.031 Water and Wastewater Commission: January 14, 2026 WILLIAMSONCREEKPLEASANTHILLSOUTHBOGGYCREEKONIONCREEKSIH35SBSIH35NBSIH35SVRDSBSIH35SVRDNBSCONGRESSAVETERIRDS1STSTCIRCLESRDFREIDRICHLNESTELMORDBLUFFSPRINGSRDRAMBLELNPINOLNSTONLEIGHPLBITTERCREEKDRBLUEMEADOWDREBENWHITEBLVDEBDOVESPRINGSDRPALOBLANCOLNSUBURBANDRLITTLETEXASLNDOVEDRTERRYOLNBUCKSRUNPATSYPKWYWOODWARDSTLAMBSLNPONCIANADRWEIDEMARLNWASSONRDSHERATONAVEEWILLIAMCANNONDRESTASSNEYLNELMCREEKDRPEPPERTREEPKWYEBERHARTLNPINEPLBATTLEBENDBLVDNELMSDRFLOURNOYDRNUCKOLSCROSSINGRDCREEKBENDDRWSTASSNEYLNOLDCASTLERDMEINARDUSDRTURNSTONEDRSOUTHINDUSTRIALDRVINSONDRPEPPERLNREDBIRDLNCROWLNCLEARDAYDRFOREMOSTDRFRANKLINPARKDRFORTDRUMDREMERALDWOODDRDIRECTORSBLVDVILLAGETRLROWLANDDRSANTIAGOSTSANDRASTAVALONAVECONESTOGATRLCOCAOLNESTELMORDWastewater Needs¯00.250.50.751MilesProject Name: 6943.031 - Williamson Creek Wastewater InterceptorItem 03WAYMAKERWAYWESTLAKEDRWESTLAKEDRPLAZAONTHELAKEAirportBlvdSpringdaleRdManorRd.ManorRdE.7thSt171360WHITEROCKDR183S CONGRESS AVE3529035Project Limits357135E STASSNEY LN29071