The Black Wall Street Times on MSN6mon
Williams Crossing: Tulsa Celebrates New Landmark Pedestrian Bridge over the Arkansas River
The bridge was designed in homage to Robert Maillart’s 1933 Schwandbach Bridge near Bern, Switzerland, which is a curved, ...
PBS3mon
Arch Bridge
Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch to the supports at each end. These supports, called the abutments, carry the load and ...