Final answer:
The primary purpose of bridging in this location is to increase stability.
Step-by-step explanation:
The primary purpose of the bridging installed near the midspan in engineering is to increase stability.
Bridging, also known as cross bracing or diagonal bracing, is used to strengthen and stabilize structures, such as bridges. It helps to distribute the loads more evenly and prevents any excessive movement or deformation.
By adding bridging, the structure becomes more rigid, which improves its stability and reduces the chances of failure.