The Carquinez Strait Bridges The Future of Northern CaliforniaBridge CharacteristicsPowerPoint PresentationConstruction PicturesBridge BenefitsBridge CostsProject FundingProject Funding, cont.Cost/Benefit AnalysisConclusionReferencesThe Carquinez Strait BridgesThe Future of Northern CaliforniaBy Jennifer MooreBy Jennifer MooreMay 12, 2003May 12, 2003Bridge Characteristics8 Bridges link Bay Area8 Bridges link Bay AreaCarquinez Bridge a major Carquinez Bridge a major connector between Bay connector between Bay and farther northand farther north110,000 average daily 110,000 average daily trips=second most used trips=second most used bridgebridgeAccounts for about 18% Accounts for about 18% of toll revenue (27M)of toll revenue (27M)Expected growth of 44% Expected growth of 44% + 48,500 daily riders+ 48,500 daily ridersHistory: First steel truss bridge built in 1927, History: First steel truss bridge built in 1927, followed by a second steel truss bridge, 1958followed by a second steel truss bridge, 1958Problem: Oldest bridge has expanded life span, Problem: Oldest bridge has expanded life span, both bridges are not earthquake soundboth bridges are not earthquake soundSolution: Dismantle 1927 bridge, retrofit 1958 Solution: Dismantle 1927 bridge, retrofit 1958 bridge, build a new twin-tower suspension bridge, build a new twin-tower suspension bridge(Al Zampa Memorial), west of existing bridge(Al Zampa Memorial), west of existing bridge, and build new Crockett Interchange bridge, and build new Crockett Interchange Project OverviewConstruction PicturesBridge BenefitsImproves mobility across Northern California:Improves mobility across Northern California: -satisfy current seismic and safety standards-satisfy current seismic and safety standards -correct existing roadway deficiencies-correct existing roadway deficiencies -improve traffic safety-improve traffic safety -maintain routes for local, regional, and -maintain routes for local, regional, and interstate truck freight movementinterstate truck freight movement -support high occupancy vehicle (HOV) use-support high occupancy vehicle (HOV) use -addition of public amenities (bike lanes and vista)-addition of public amenities (bike lanes and vista)Bridge CostsInitial Estimates=$340MInitial Estimates=$340MActual Costs= $480MActual Costs= $480M -Regional Measure I (1988)-Regional Measure I (1988)Cause a huge bottleneck during project spanCause a huge bottleneck during project spanImpact on local residents and environmentImpact on local residents and environment -Loss of 20 homes, noise, water -Loss of 20 homes, noise, water disturbancesdisturbancesProject FundingRegional Measure I (1988): voter-approved Regional Measure I (1988): voter-approved measure, run by Bay Area Toll Authority measure, run by Bay Area Toll Authority (BATA) to set a uniform toll of $1 on all (BATA) to set a uniform toll of $1 on all state-owned Bay Area bridges, specifically state-owned Bay Area bridges, specifically for bridge and transit improvements for bridge and transit improvements Collaboration between BATA, Metropolitan Collaboration between BATA, Metropolitan Transportation Commission (MTA), State Transportation Commission (MTA), State (Caltrans), and local Crockett residences(Caltrans), and local Crockett residencesProject Funding, cont.State Senate Bill 226: State transferred a portion of State Senate Bill 226: State transferred a portion of revenues and existing fund balances collected before revenues and existing fund balances collected before June 30,1998.June 30,1998.Total transfer amount: $600 MTotal transfer amount: $600 MTotal bonds issued: $400 M fixed and variable rate, Total bonds issued: $400 M fixed and variable rate, more to be issued soonmore to be issued soonTOTAL Available Funding > $1 BillionTOTAL Available Funding > $1 BillionCarquinez Bridges= approx 36% of fundingCarquinez Bridges= approx 36% of funding -$144M of Bond (mature in 2018 and 2035)-$144M of Bond (mature in 2018 and 2035)Cost/Benefit Analysis-150-100-50050100150$ (millions)0 1 2 3 4 5 6 7 8Time (years)i=5%NPV Cost=$144MNPV Rev=$146MAnnual Rev=$27MConclusionThe Carquinez Bridges are not only The Carquinez Bridges are not only essential for commuters and travelers, but essential for commuters and travelers, but also profitable if $2 toll remainsalso profitable if $2 toll remainsImprovements will help alleviate large Improvements will help alleviate large traffic jams and make driving more safetraffic jams and make driving more safeFinal Question: What will the growing Final Question: What will the growing demands of the Bay Area have in store for demands of the Bay Area have in store for the future of its bridges? the future of its bridges?References““Toll Bridge Report to the California Toll Bridge Report to the California Legislature.” Metropolitan Transportation Legislature.” Metropolitan Transportation Commission Commission http://www.mtc.ca.gov/bata/pdfs/ toll_bridge_rephttp://www.mtc.ca.gov/bata/pdfs/ toll_bridge_report_2002.pdfort_2002.pdf““Bay Area Toll Authority Sells $400M in Bonds Bay Area Toll Authority Sells $400M in Bonds for Bridge Work.” for Bridge Work.” http://www.mtc.ca.gov/ whats_happening/prehttp://www.mtc.ca.gov/ whats_happening/press_releases/rel159.ss_releases/rel159.htmhtm““Carquinez Bridge.” Carquinez Bridge.”
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