Lava from Puʻu ʻŌʻō flows through subsurface lava tubes until it meets the ocean, creating the steam plumes seen in the distance from Chain of Craters Road
... that the interchange between Maryland Route 90 and U.S. Route 113 sat unused for 24 years until US 113 was relocated as a four-lane divided highway in 2000?
... that two bridges are currently under construction in Nevada that when finished will claim the title of longest in the United States: the Mike O'Callaghan – Pat Tillman Memorial Bridge will be the longest and first major composite steel/concrete arch in the U.S. and the Galena Creek Bridge will have the longest concrete arch?