cribwork
/ˈkrɪb.wɜːrk/Definitions
1. noun
A framework or structure, especially one of wooden beams, used to support or hold something, such as a building under construction.
“The construction crew began to install the cribwork to support the new floor.”
2. noun
A latticework of wooden beams or other materials that are used to support a bridge or other structure.
“The engineers inspected the cribwork under the old bridge before deciding to repair it.”