CMAA - BREAKFAST OF CHAMPIONS May 2, 2012

Transcription

1 CMAA - BREAKFAST OF CHAMPIONS May 2, 2012 SIXTH STREET VIADUCT REPLACEMENT Gary Lee Moore, P.E. City Engineer Deborah Weintraub, AIA, LEED AP Chief Deputy City Engineer Alfred L. Mata, P.E. Project Manager City of Los Angeles Department of Public Works Engineering

2 VISION STATEMENT TO LEAD THE TRANSFORMATION OF LOS ANGELES INTO THE WORLD S MOST LIVABLE CITY.

3 BUREAU OF ENGINEERING PROJECTS CITY OF LOS ANGELES DEPARTMENT OF PUBLIC WORKS BUREAU OF ENGINEERING

4 BUREAU OF ENGINEERING PROJECTS PROJECTS COMPLETED SINCE JULY 1, 2005 CITY OF LOS ANGELES DEPARTMENT OF PUBLIC WORKS ACTIVE PROJECTS BUREAU OF ENGINEERING

5 Sixth Street Viaduct Replacement Project In Conjunction with FHWA & Caltrans Fourth Street Sixth Street

6 Existing Conditions Alkali Silica Reactivity (ASR) deterioration exists throughout Past repairs have been ineffective and ASR will continue Seismic reliability is poor, with high collapse probability Viaduct geometrics are functionally deficient Light Damage Moderate Damage Moderate to Severe Damage Severe Damage

7 Selected Project Replacement Alignment 3B Bridge Concept - Type 4 $401M ANDERSON ST. Alignment 3B Benefits Creates Roadway Shoulders Provides Wider Sidewalks Removes Kink in Bridge Provides Safety Median Buffer Multimodal: Peds & Bikes River Access & Enhancements N MISSION CLARENCE ST. RD. UPRR SCRRA (METROLINK) L.A. R I V E R SANTA FE Existing Viaduct NO SCALE JESSE ST. SCRRA (METROLINK) BNSF RAILWAY INC. LACMTA (METRO_) MESQUIT ST. AVE. 6TH ST. IMPERIAL ST. 6TH ST. MATEO ST.

8 Railroad Corridors Project Constraints Los Angeles River High Voltage Transmission Lines

9 Preferred Project Elements Alignment 3B Bridge Concept 4 Iconic Bridge: Viaduct: Roadway: Utility Relocations: Railroad Corridors: LA River: Street Improvements: Demolition: Four Span Extradosed Concrete Box Girder Cast in Place Box Girders, including Hwy 101 Crossing Four Lanes with Median, Shoulders and Sidewalks Avoid Transmission Lines, Relocate Others Safety Shields, River Access Tunnel In-Water Work, Pedestrian Access, Revitalization Plans Temporary and Permanent, 20 Intersections Safety is Paramount: Railroads, Businesses, Public

10 Architectural Enhancement and Design As part of the RFQ/P released on 4/25/12, the City will conduct a design competition to refine the bridge concept to ensure an architecturally distinctive and cost-effective design expression.

11 Renderings Looking south Looking west to downtown

12 Architectural Expressions Rio-Antirio Bridge (Greece)

13 Architectural Expressions Gerald Desmond Bridge Port of Long Beach, California Proposed Final Design Existing

14 Architectural Expressions Willamette River Bridge Collection Portland, Oregon Under Construction Existing

15 Architectural Expressions Modern Bridges Millau Viaduct (France) Dusseldorf, Germany

16 Architectural Expressions Slanted Tower Illuminated Towers Sun Dial Bridge Redding, California Missouri River Bridge Omaha, Nebraska

17 Project Budget Project Phase Preliminary Engineering and Environmental Clearance $ Amount (in millions) 17 Program Management and Final Design Right-of-Way Construction and Construction Management 259 Total (incl. Bond Financing Cost) 401

18 Construction Budget by Element Design Consultant Scope $ Amount (in millions) New Viaduct 140 Demolition 12 Roadway and Intersection Improvements 10 Other Street Improvements 13 Tunnel and Railroad Improvements 10 River, Landscaping, Bicycle, Pedestrian 5 Subtotal 190

19 Project Schedule Milestone Date City Approval of Project and Financial Plan Nov 18, 2011 Record of Decision Issued Dec 21, 2011 Issue Design Consultant RFP Apr 25, 2012 Begin Right-of-Way Acquisition Process May 2012 Begin Final Design Dec 2012 Complete Final Design Aug 2014 Advertise for Construction Bids Sep 2014 Begin Advance Construction Early 2015 Begin Bridge Construction Mid 2015 Complete Construction 2018

20 Project Delivery Program Management: City and Consultant Design: International Design Competition, For RFQ/P, register at Design Aesthetic Advisory Committee Construction Management: City and Consultant Utility Relocations: Utility Agencies and Contractor Potential Construction Packages: Utility Relocations, Intersections, Demolition Construction: Conventional Design-Bid-Build or Construction Manager / General Contractor

21 For Contracting Opportunities - City of LA Business Assistance Virtual Network Contracting Opportunities are Posted on Construction Bid Documents RFQ s RFP s To download documents, your company must be registered (free) on BAVN. Use BAVN for outreach to subcontractors/subconsultants

22 Sixth Street Viaduct Replacement Project For more information: Project Manager: Alfred L. Mata, P.E.