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Construction Contracting Update Shay Ralls Roalson, PE | November 9, 2022  Recent Bidding Results  Wild Horse WWTP Expansion Bid Analysis Agenda  Upcoming Bids  Large Facilities IDIQ  Alternative Delivery 1 Construction Contracts City of Austin Bidding Process  Outreach events to communicate upcoming projects  Four- to six-week advertisement  Adjust bid dates to avoid “competing with ourselves” • Coordination with SAWS and Houston  Non-mandatory pre-bids, where possible  For single bid contracts, move forward if • Contractor meets qualifications • Project cannot be rescoped 3 • For projects with low pre-bid attendance, contact bidders and consider extending solicitation Construction Contracts Engineers’ Opinions of Probable Construction Cost  Developed on the basis of vendor quotes, installation factors, and recent bids  Prepared at preliminary engineering and design milestones (30%, 60%, 90%)  Updated at 100% and at advertisement  Contingencies represent “work not included elsewhere” • Reduce as design detail increases  Difficult to adjust to rapidly changing bid climates  Review high bids and single bids • Make recommendation whether to proceed 4 AW Project Bids May 2021 – Sept 2022  34 bid openings, including 3 re-bids  25 projects with multiple bids  5 projects with one bid • 3 rejected  4 projects with no bids 5 Multiple Bids Single Bid No Bid 10 8 6 4 2 0 y c n e u q e r F 0 1 3 Number of Bids Received per Contract 4 5 2 6 Low Bids vs Engineer’s Opinion of Probable Construction Cost (OPCC)  30 project bids received • 12 below OPCC • 18 above OPCC  5 single bids • 2 accepted • 3 rejected  All accepted bids combined • OPCC = $319M • Accepted bids = $319M 1 Single bids accepted Single bids rejected Single Bids Rejected Path Forward  Davis WTP Raw Water Hydraulic and Energy Efficiency Improvements • Single bid, 2.4x OPCC • Repackage and bid with other upcoming work at the WTP  SAR WWTP Elevated Tank Rehabilitation and Improvements • Single bid, 2.2x OPCC • Split into two projects, one for site work and one for tank recoating  East Parke Subdivision Phase 1 Lift Station (Development Project SER) • Single bid, 2.0x OPCC • Non-compliant bid, preparing to re-bid 7 No-Bid Projects Re-Bid Results Project OPCC Low Bid Re-bid Outcome Zilker Water and Wastewater Pipeline Renewal $8,600,000 5 bids Handcox WTP Process Building HVAC Improvements $750,000 2 bids Govalle Site Domestic Wastewater Service Improvements $540,000 3 bids Glenlake Pump Station Bypass Improvements $865,000 TBD $9,100,000 +6% $903,000 +20% 1,140,000 +112% 8 Wildhorse WWTP Expansion Bid opening Bids received 2 9/22/22 $49 million OPCC Low bid $70 million Bids within 7% of each other Bid analysis  Electrical and I&C • Approximately double OPCC • +$11.4 million  Process Equipment • Approximately double OPCC • +5.4 million  Sheet piling • Approximately triple OPCC • +2.2 million Upcoming Bids Bid Opening Number of Projects Total OPCC Types of Projects 5 3 2 7 1 1 $16,100,000 $8,200,000 $7,700,000 Reclaimed water main Water main extensions and relocations Renewing Austin Wastewater pipe rehabilitation Hornsby Bend roadway Renewing Austin Walnut WWTP effluent sample pump Renewing Austin Lift station improvements Pump station improvements Pressure zone conversion Davis WTP raw water efficiency $4,700,000 Wastewater pipe rehabilitation $8,100,000 Reclaimed water main Feb 2023 $22,700,000 Nov 2022 Dec 2022 Jan 2023 Mar 2023 Apr 2023 10 Large Facilities IDIQ Status Update  High value contract • Resiliency work needed by operations • Smaller projects that don’t bid well  Initial 1 year contract, up to two 1-year extensions • $5 million per year, $15 million total • Approved by Council in July 2022  Assignments made or in progress • 8 assignments, $5 million • 9 assignments in queue  Contract extension planned for spring 2023 Project Cost Texas Plume Lift Station $2,000,000 Ullrich WTP Centrifuge Panel Replacement $750,000 River Place WWTP Effluent Pumps FM 973 Sludge Line Relocation SAR WWTP Thickener Wet Well Cleaning Ullrich WTP High Service Pump Station Valve Replacement Balcones WWTP Reclaimed System $200,000 $500,000 $600,000 $330,000 $750,000 11 Alternative Delivery Underway and Planned Project Delivery Method Status Walnut Creek WWTP Primary Clarifiers and Flow Equalization Basin Rehab Construction Manager at Risk • 30% design underway • CMR contracting Walnut Creek WWTP Expansion to 100 mgd Construction Manager at Risk Williamson Creek Interceptor Competitively Sealed Proposals underway Initiating final design • • CMR advertisement planned spring 2023 • 100% design underway • CSP advertisement planned August 2023 Delivery Method Council Approval December 2021 December 2022 February 2023 12 QUESTIONS austinwater.org 13