Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?

To: TobagoJack who wrote (217716)	11/12/2025 10:35:24 PM
From: Pogeu Mahone	Read Replies (1) \| Respond to of 218602

Has a new bridge ever collapsed in 4 months in the United States? No Talk about shoddy construction. Older bridges were designed with a 50-year lifespan, current design specifications aim for a 75-year life, with some projects targeting 100 years or more. The number of bridges reaching or exceeding their initial design life is increasing, and many of the nation's bridges are old enough to be considered "decrepit," even though they were not initially designed to be in poor condition. Older designs: Many bridges currently in use were originally designed for a 50-year service life. Current standards: The current standard for new bridge design is a 75-year service life, according to AASHTO LRFD Bridge Design Specifications. Future goals: Some agencies are aiming for even greater longevity, with goals of achieving a century-long service life for new bridges. Bridge age: A significant number of U.S. bridges are well over 50 years old, with many being over 80 years old, which is why they are considered decrepit or in poor condition. Maintenance: Proper maintenance is crucial for a bridge to last beyond its initial design life. A dental bridge typically lasts between 5 and 15 years, though some can last 20 years or even longer with excellent care. The Francis Scott Key Bridge in Maryland, which collapsed after being struck by a cargo ship, was 47 years old when it was destroyed. The bridge opened on March 23, 1977, and collapsed on March 26, 2024. Opened: March 23, 1977 Collapsed: March 26, 2024 Age at collapse: 47 years