Historic Piece
Alvord Lake Bridge
From our homes to our businesses, from schools and hospitals to our roads, bridges, airports, and even the rocket launchpads that carry us to the stars — concrete is the foundation of our nation.
Starting this July and continuing through the rest of 2026, NRMCA will proudly tell the story of America’s Ready Mixed Concrete Industry and its enormous contribution to our country’s growth, economy, and everyday life.
Concrete is the material that builds America — from our interstate highways and iconic skyscrapers to suburban neighborhoods and rural farmhouses. For nearly 100 years, NRMCA has represented the companies that make this possible. Today, our industry has a presence in every state and every congressional district in the nation. And today’s ready mixed concrete is stronger, smarter, and more sustainable than ever.
America builds with concrete because we
Build With Strength.
Feature Spotlights
Historic Piece
Built in 1889 in Golden Gate Park, the Alvord Lake Bridge is the first reinforced concrete bridge in America — a single 20-foot arch, 64 feet wide, designed and built by Ernest L. Ransome using the twisted-iron rebar system he had patented five years earlier. He formed its concrete to look like stone and hung decorative concrete stalactites beneath the arch to give it the feel of a cave. It survived the 1906 earthquake in remarkable shape and is still in service today.
Follow #America250Concrete or visit nrmca.org/america250 to learn more.
