Town of Moraga Canyon Road Bridge Reopening Project October 12, 2017 Town Council Presentation Edric Kwan, P .E. Public Works Director/Town Engineer
Presentation Agenda Background (Edric) Construction Completed to Date (Shawn) Remaining Construction (Shawn) Cost Escalations (Lance) Project Budget (Edric) Funding and Recommendation (Edric) 10/12/17 2
Canyon Road Bridge Background Vicinity Map and Affected Communities 10/12/17 3
Canyon Road Bridge Background Location Map and Affected Communities Adjacent Adjacent Hill and Residents Residents Lafayette-Moraga Regional Trail/Fire Trail Canyon Road Canyon Road Bridge Pear Moraga Creek Orchard and Larch Creek Joaquin Moraga Intermediate School 10/12/17 4
Landslide and Existing Bridge Condition Preliminary Landslide Interpretation 10/12/17 5
Landslide and Existing Bridge Condition TWISTED SUPPORT BEAMS SOUTHWEST CORNER OF SOUTH ABUTMENT 4/23/2017 10/12/17 6
Background April 17, 2017 Bridge damage observed April 18, 2017 Bridge closed to the public. Emergency Service Providers notified April 24, 2017 Town staff host informational community meeting at Canyon school April 27, 2017 Town Council declares local emergency and allocates initial $500,000 budget April 25, 2017 Town submits request for FEMA Public Assistance June 7, 2017 FEMA denies Public Assistance request 10/12/17
Background June 14, 2017 Town Council approves installation of temporary bridge plan and revises project budget to $2,060,000 May 9, 2017 Town submits Damage Assessment Form (DAF) requesting FHWA Emergency Relief funds to reopen bridge to essential traffic July 7, 2017 FHWA approves DAF setting budget at $2,060,150 September 15, 2017 FHWA approves revised DAF increasing budget to $2,339,799 10/12/17
Temporary Bridge Plan Begin Engineering, ROW and Environmental Clearances Complete Phases on Critical Path Track Relocate Utilities Demolition and Removal Bridge Lease Bridge Construct Bridge Abutments, Pilings, Roadway Transitions, Install Temporary Bridge and Traffic Control System 10/12/17
Utility Relocations AT&T Begun June 14, 2017 Sprint 10/12/17
Sprint – Fiber Conduits 10/12/17
Sprint Directional Boring 10/12/17
Sprint – New Manholes for Fiber lines 10/12/17
Demolition and Bridge Removal W.C. Maloney - Contractor 148,000 Base Bid Removal Cost $7,900 Change Orders Started September 18, 2017 Completed October 3, 2017 10/12/17
Moraga Creek Protection Measures 10/12/17
Saw Cutting Bridge Deck 1 10/12/17 6
Removing Bridge Deck 10/12/17
Large Crane Operation 10/12/17
Bridge Construction There were four bidders on the project and lowest bidder at $1,787,375 was over the Engineer’s Estimate (EE) by 39% or $503,275. $1,787,375 Low Bidder - Myers & Sons Construction The Low bid through Bid No. 3 were fairly closely spaced at 39%, 44% and 56% over EE, respectively. Caltrans will approve the higher construction costs as reimbursable ($445,549 FHWA and $57,725 Town). 10/12/17
Bridge Lease $228,840.32 Mabey, Inc. (Low Bidder) $357,833.00 Acrow Bridge 10/12/17
Emergency Construction in California There is currently a great deal of work being performed by local contractors and subcontractors due to many spring 2017 storm- related damages. This has led to higher bids as contractors had more options on projects to bid on. For example, Quincy Engineers, the project’s design team, is currently working on, or has recently completed, storm damage projects for Contra Costa, Monterey, Lake and Santa Cruz Counties. Additionally, Humboldt and Del Norte Counties will be bidding out construction contracts soon. Exact increase in costs cannot be determined since the increase would be spread among different bid items. 10/12/17
Shortened Bidding Period Due to utility relocation delays (caused by encountering granite rock during directional bore operation), an extremely short time frame for contractors to prepare bids was implemented to assist with offsetting the delay. This caused higher bids, especially for subcontractor work, as the prime contractor would not have time to bid shop. This is why the cost of erecting the temporary prefabricated steel bridge was much higher than anticipated despite the design engineer’s feedback from bridge manufacturers and comparable other temporary bridge installations (increased by $240,000). Examples of other bridges that the design team reviewed included Harbin Springs Road Bridge, Lake County; Foard Road, Lake County; Branch Mills Road, San Luis Obispo County; and 11th Street Bridge, City of Tracy. 10/12/17
Disadvantaged Business Enterprise (DBE) As a federalized project, DBE requirement for the work affected costs. An example is the reinforcing steel, where the prime contractor used DBE suppliers and the costs were twice as expensive as originally estimated. Another example is a current large demand for structural concrete causing orders being placed in advance by many other contractors (increasing costs by $35,750). This may also be a reason why the cast-in-drilled-hole (CIDH) piles cost was higher than anticipated (increased by $82,000). For reinforced steel, the costs were much higher than normal (increased by $129,000). 10/12/17
Separating Demolition from Site Preparation for Temporary Bridge Originally, the demolition of the existing bridge was part of site preparation contract; however, to assist with offsetting the utility relocation delay, demolition was separated to start work earlier than originally scheduled. Having a separate contract for the demolition costs increased the original estimate due to having two mobilizations and two clean ups (increased by $90,000). 10/12/17
Increased Construction Hours and Expanded Weekend Work To assist with offsetting the utility relocation delay, the demolition and site preparation contract increased working hours and included weekend work. Increased work crews and overtime increase construction costs. Exact increase in costs cannot be determined since the increase would be spread among different bid items. 10/12/17
Staff Time Staff time was not previously accounted for the project budget. Higher than anticipated staff time used for public information requests and background for lawsuits. Staff time as related to the construction project is reimbursable. Legal services are not reimbursable. 10/12/17
Proposed Project Budget Project Expenditure Plan Estimate to Date Projected Costs FHWA (88.53%) Town (11.47%) Temporary Bridge Design (Quincy Engineers and $ 359,700 $ 359,700 $ 318,442 $ 41,258 Hultgren-Tillis – Bridge Design & Geotechnical) Temporary Bridge Design Support (NV5 – Environmental Clearances, ROW & Utilities $ 130,000 $ 170,367 $ 150,826 $ 19,541 Coordination) Construction Management/Inspection $ 137,000 $ 92,065 $ 81,505 $ 10,560 Temporary Bridge Construction $ 1,250,000 $ 2,210,760 $ 1,957,186 $ 253,574 Construction Contingency $ 125,000 $ 221,076 $ 195,719 $ 25,357 Town Staff Time $ 58,300 $ 240,420 TBD TBD Total Project Estimated Cost Estimate $ 2,060,000 $ 3,294,388 $ 2,703,678 $ 350,290 10/12/17
Proposed Project Funding Sources Project Funding Sources Budget Fund 100: Palos Colorados (Budgeted) 1 $ 500,000 Fund 100: Palos Colorados (Budgeted) 2 $ 500,000 Fund 101: General Fund Reserves (Budgeted) 2 $ 1,060,000 Approved Budget $ 2,060,000 Fund 101: General Fund Reserves (Requested) $ 1,000,000 Fund 210: Measure J (Requested) $ 234,388 Requested Budget $ 1,234,388 $ 3,294,388 Total Funding 10/12/17
Project Funding and Next Steps Requested Actions by Town Council Adopt a Town Resolution to 1) Appropriate an additional $234,388 from Measure J (Fund 210) and $1,000,000 from General Fund Reserve (Fund 101) towards the Project for a total budget of $3,294,388. 10/12/17 29
Where to find Project information Canyon Road Bridge Web Page: http://www.moraga.ca.us/Canyon-Bridge-Closure-2017 NIXLE: https://local.nixle.com/register/ NextDoor: https://nextdoor.com About Town: http://www.moraga.ca.us/dept/townclerk/abouttown Contact Moraga Public Works Department staff: Phone (925) 888-7026 or at publicworks@moraga.ca.us 10/12/17
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