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HomeMy WebLinkAboutITEM 16 - PPP 7-37 Ops Sept 2018 - 1 Dow eLocK t Fi Kiewit�— t r Red HillSewer Project No . 7 - 37 Operations Committee September 5, 2018 , n Project • 4,900-feet of new 30 to Chestnut Ave ~ E Main St. 33-inch VCP sewer dj McFadden Ave • New manholes, 60 to 96-inches in diameter Edinger Ave • Pipe rehabilitation with cured in place pipe (CIPP) 4� • Rehabilitation of 50 d er Rd GISLER- RED HILL manholes Alton Ave SYSTEM IMPROVEMENTS REACH B • Sewer repairs at Cz Mitchell/Newport Avenue �d� ddd • Sewer repairs at Mitchell/Redhill Avenue Project Challenges • Deep excavations, average of 25-ft in depth • Unknown utilities at several locations including at major intersections: • Redhill/Edinger - 9 utilities • Newport/Mitchell — 5 utilities • City changed Newport/Mitchell intersection work to nights and required daily traffic control removal r;s C•'t ' • I w a %/; U a I MIT 5 V •._ i SY .tY ' � J YIr n i fi "Op. off_ A7 !� • .i �. M I y I Shorming ` itA90 _ fit f «?f Mitigated Changes • Added crews proactively to finish project on schedule. • Worked with City to mitigate use of excavated soil and reduce hauling costs. • Coordinated with City's project on paving areas. • Changed rehabilitation from grout sleeves to cured in place pipe. Schedule -Milestone Contract Date Actual Date d Milestone 1 : Work at Mitchel / 8/12/17 8/28/17 A Newport and Mitchell / Redhill Intersections Milestone 2 : Substantial Completion 8/18/17 9/16/17 A Milestone 3 : Final Completion 9/27/17 3/15/18 A • Schedule Impacts due to: ✓ Unknown conditions (utilities) ✓Traffic control and work hour changes ✓ Contractor productivity impacts due to change conditions Contract M� rivh=. . w Original Contract Amount $15,432,000 Original Contingency $1,543,200 10.0% Change Orders to Date $1,383,457 9.0% Remaining Contingency $159,743 1.0% * Final Settlement Amount $525,000 Additional Contingency Needed $365,257 Final Contingency Amount $1,908,457 12.4% Final Contract Amount $17,340,457 *Initial Contractor's request $1.3M Final Closeout • Work is complete, facilities are in service • Cities are satisfied with work • Final settlement reached resolving all outstanding costs • No project budget increase necessary Recommended Action • Approve a contingency increase of $365,257 (2.4%) to the construction contract with Kiewit Infrastructure West Company for the Gisler-Redhill System Improvements, Reach B project No. 7-37, for a total construction contingency of $ 1,908,457 ( 12.4%) Valencia Avu esti o n s I R -� • ",''�.�y fir*�''�`l •r � � • -, � � � .� il�r Fyn � , � r JIM'1 I� I •• � 1 r h" •.04109I2017 15 � 45 �� "ice __ '�� ��� -. ��•r�