The big green beam that arrived was part of a delta frame — steel triangles that support the top girders to form the steel supports of the bridge. Surrounded by a motorcade, an oversized truck ...

Massachusetts-based startup Allium Engineering says its stainless-steel-bonded reinforcing bar can push bridge deck service life to 100 years or more without changing how contractors build—and the ...

Domestic makers can produce 151 Bailey bridges using locally produced steel in one month, negating the need to import the ...