SDI: Award Winning Engineering and Construction|Schuyler Heim Heavy Lifting/Lowering: Over 2,000,000 lbs.|Maui Airport APM O&M|I-74 Temporary Stays|San Onofre Nuclear Decommissioning|Hillcrest Water Storage Tanks|Los Angeles NFL Stadium|CA High Speed Rail|I-90 Floating Bridge| Divisions Post-Tensoning + Stay Cables Structural Retrofit Transit Commercial Development About Us Projects + News Contact Our Projects, News, and Awards SDI: Award Winning Work Schuyler Heim Fender Lowering 2021 Aspire Focus Article on SDI’s Innovative Post-Tensioning HART: Honolulu Rail Transit Phase 3 Frederick Douglass Memorial Bridge Operation and Maintenance (O&M): Kahului Airport Tram (APM) I-74 Temporary Stay Cables San Onofre Nuclear Decommissioning Design and Construction: Kahului Airport Tram (APM) Post-Tensioning Excellence Marc Basnight Bridge (Bonner Bridge Replacement) Hillcrest Water Storage Tanks First Segmental Bridge Built in Louisiana Proves a Great Success (I-49, Segment K) The Los Angeles SOFI Rams Stadium SR 520: De-tensioning the World’s Longest PT Tendons Apple Park SDI Safely Lowers 850,000 lb. Bridge Weights 150 Vertical Feet Monterey Conference Center Renovation Dresbach Bridge Bayonne Bridge Stay Cable Testing CA High Speed Rail Tallest Wind Tower in US HART: Honolulu Rail Transit System Phases 1 & 2 I-90 Floating Bridge Retrofit Oregon’s Crooked River Bridge Makes U.S. Construction History New Benicia-Martinez Bridge Opens to Traffic Antlers Bridge (Segmental Cast-in-Place Cantilever) Pearl Harbor Memorial Bridge (Q Bridge) – Extradosed Stay Cable Bridge South 200 Link Extension, Seattle, WA New SR-520 Bridge Pitkins Curve Bridge and Rock Shed Duct Machine Up and Running! Tilikum Crossing New SF-Oakland Bay Bridge Completed Presidio Parkway Phases 1 and 2 Two Medicine Reaching Final Stages of Construction SDI Acquires Avar’s PT Division Pearl Ridge SDI Completes Work on San Onofre Steam Generator Replacement SF – Oakland Bay Bridge – YBI Transition Structure Golden Pass LNG Project in Texas Allegheny River Bridge Construction Completed in Pennsylvania Clarian APM O&M Update McCarran / Tropicana SDI Gives Bronx Zoo Monorail a New Lease on Life California’s Eel River Bridge Employing SDI Post-Tensioning Materials & Installation Labor Folsom Dam Bypass Bridge Construction Complete Near Sacramento Hawaii’s Hilton Waikoloa People Mover Undergoes Extensive Renovation Minneapolis Airport APM O&M Update Award Winning Bicycle–Pedestrian Bridge joining Cupertino and Sunnyvale, CA World’s First Floating LNG Terminal Uses SDI Know-How SDI Repairs Civic Center Parking Structure Hoover Dam Bridge SDI Performs First-Ever U.S. Cryogenic Testing of Post-Tensioning Tendons Bay Bridge Skyway Project Complete Guido Schwager Receives Career Contribution Award From the American Segmental Bridge Institute New Devil’s Slide Bridge Utilizing SDI Form Travelers, Post-Tensioning Materials & Installation Services SDI Dismantles, Stores, Upgrades and Re-Installs the Bellagio People Mover System in Las Vegas SDI Supplying Post-Tensioning System for Seattle Sound Transit Light Rail Project First U.S.-Supplied Post-Tensioning Project in Russia Clarian People Mover Gains Ground as New Indianapolis Icon First Self-Propelled Unitrax™ Installed at Primadonna Resort Near Las Vegas SDI Doubles Passenger Capacity for Primm Valley Shuttle System