Shares in local infrastructure and construction stocks continued to rise in the wake of the collapse of a 40-year-old Minneapolis bridge.

Shares in Los Angeles-based Aecom Technology Corp., which is a construction and consulting firm, continued to gain another 4 percent Friday morning to $27.46 after gaining 4 percent Thursday, the day after the disaster was announced.

Los Angeles-based Material Technologies Corp. also saw another day of increases after posting nearly a 50 percent gain Thursday. Shares in the tiny technology firm, which has developed a mechanism that can detect fatigue in metal structures, continued to gain another 24 percent Friday morning to $1.72.