10-0615_PETERSON-CHASE GEN ENG CONST., INC_PowerpointDecember 6, 2011By Public Works DepartmentJunipero Serra Road & Rancho Viejo Road Intersection ImprovementsJunipero Serra Road & Rancho Viejo Road Intersection ImprovementsCIP 07116
PROJECT OVERVIEWPROJECT OVERVIEWProject widened Junipero Serra Road and Rancho Viejo Road to reduce excessive traffic queues and improve overall traffic operations. Project features include the following:•Rancho‐dual northbound left turn lanes and dual southbound right turn lanes onto westbound J‐Serra.•J‐Serra‐additional westbound and eastbound exclusive right turn lanes to I‐5 on‐ramp and Rancho respectively.•New driveway entranceinto the southerly Park & Ride facility at Rancho Viejo Road & Malaspina Road.•Landscape improvementsalong frontage of both northerly and southerly Park & Ride facilities.•Water quality elements incorporated into landscape improvements.•APWA Award winning project.2
PROJECT SCOPEPROJECT SCOPE•Utility Relocations (power, gas, telephone, signal interconnect, etc.)•Street Widening and Improvements•Bus Stop Re‐establishment•Traffic Signal Modifications •Signing & Striping•Storm Drain Improvements•Grading and Retaining Wall Improvements (Park & Ride) •Water / Reclaimed Water Improvements (Caltrans & City Systems)•Landscape and Irrigation (Park & Ride)•ADA accessibility.•Water Quality (structural & non‐structural BMPs).3
RANCHO VIEJO ROAD OVERVIEWRANCHO VIEJO ROAD OVERVIEWDual northbound left turn lanes.4Dual southbound right turn lanes.
J‐SERRA ROAD OVERVIEWJ‐SERRA ROAD OVERVIEWAdditional westbound and eastbound exclusive right turn lanes to I‐5 on‐ramp and Rancho Viejo Road respectively.5* Widened from a four lane road to a six lane road.
RVR / MALASPINA DRIVEWAY OVERVIEWRVR / MALASPINA DRIVEWAY OVERVIEWNew driveway entrance into the southerly Park & Ride facility at Rancho Viejo Road & Malaspina Road.6
LANDSCAPE IMPROVEMENTS OVERVIEWLANDSCAPE IMPROVEMENTS OVERVIEWLandscape improvements along frontage of southerlyPark & Ride facility.7
LANDSCAPE IMPROVEMENTS OVERVIEWLANDSCAPE IMPROVEMENTS OVERVIEWLandscape improvements along frontage of northerlyPark & Ride facility.8
WATER QUALITY ELEMENTS OVERVIEWWATER QUALITY ELEMENTS OVERVIEWRoadway culvert, bio‐swales, cobbles, plants, and filterra water quality units integrate water quality elements as part of landscaping.9
PRE‐CONSTRUCTION ASSESSMENTSPRE‐CONSTRUCTION ASSESSMENTS•Potential change orders anticipated due to complexity of project, project unknowns, and additional Caltrans requirements, etc.•Field re‐designs of project elements potentially needed for this project. •Dedicated full‐time construction management needed on the ground to oversee contractor, verify construction quantities, anticipate upcoming issues, etc.10
STRATEGY EMPLOYED DURING CONSTRUCTION STRATEGY EMPLOYED DURING CONSTRUCTION In order to offset change order costs outside of the original scope of work, the following was employed: •Provide alternative re‐designs to conflicted elements with attention paid to use of materials, quantities, and alignments (as applicable). •Modify construction methods and material requirements. •Reduce and/or eliminate unnecessary contract items.•Utilize weather related non‐work days for assessment and development of field re‐designs.11
PROJECT COST SUMMARYPROJECT COST SUMMARYAcquisition & Construction CostEngineer’s Estimate for Construction: $ 1,156,770Estimated Right‐of‐Way Acquisition Cost: $ 494,312(Caltrans) *Estimated Right‐of‐Way Acquisition Cost: $ 168,733(Endevco) *Total (Est.): $ 1,819,815* $663,045 saved from project expenditures.OCTA Grant AllocationsDesign Grant: $ 60,000Construction Grant: $ 311,752Total Allocations: $ 371,75212(Pre‐Construction)
CONSTRUCTION COST SUMMARYCONSTRUCTION COST SUMMARYConstruction Contract Award: $ 1,151,624.78(Low Bid) . Contract Work As Completed $ 982,045.69(Per verified pay quantities)Contract Change Orders (21 total) $ 94,836.69 Final Contract Value: $ 1,076,882.38(Actual Cost of Construction)Const. Contract (Peterson‐Chase) $ 74,742.40 (+)Soils (LGC) Contract Savings $ 3,355.00 (+)Const. Management (Moote) $ 62,620.85 (‐)Total Savings: $ 15,476.5513
FIELD RE‐DESIGNS DURING CONSTRUCTIONFIELD RE‐DESIGNS DURING CONSTRUCTIONAll elements within the scope of work affected:•Construction Survey Control•Utility Relocations •Street Widening and Improvements•Bus Stop Re‐establishment•Traffic Signal Modifications •Signing & Striping•Storm Drain Improvements•Grading and Retaining Wall Improvements (Park & Ride) •Water / Reclaimed Water Improvements (Caltrans & City Systems)•Landscape and Irrigation (Park & Ride)•ADA accessibility.•Water Quality (structural & non‐structural BMPs).14
Q&AQ&A15
CONSTRUCTION DELAYSCONSTRUCTION DELAYSConstruction Start Date:10/04/2010ContractorCityRequestAllowedAllotted Completion Time ‐days 120120Weather (Rain/Wet Grade) –days 87 78Change Order Delays – days 157 119Total Qualified Days 364317Qualified End Date: 10/03/20118/17/2011Actual End of Construction:8/23/201116
•$240,328.66 of reduction and $70,749.57 of addition was realized for a net reduction of $169,579.09 to the contract cost. •Revised contract items stands at $982,045.69 (from $1,151,624.78 per original contract amount)13