Ted Lawton and 34-year-old innovator Billy Chu ying-lung were among the winners and finalists at the Construction Industry Council's Construction Innovation Awards.
Lawton, 68, was the second prize winner in the productivity category for his "K frame" machine, which is geared toward bridge construction.
The machine helps supplement available methods for the construction of bridges over challenging terrain.
The engineering development manager at Gammon Construction came up with the idea while coping with the challenge of building marine viaducts for the Tuen Mun-Chek Lap Kok Link Project.
"By using the K frame, the segment can be lifted, rotated and passed back through the K frame into another K frame and placed in the appropriate position," he said.
Named after his wife Karnia, the K frame is lighter and cheaper than traditional launching gantries.
Chu was the finalist in the young innovator's award after coming up with a method to save costs on raw materials for floor construction.
Chu designed a MatrixDeck System, a type of floor with many black plastic boxes positioned inside a fixed pattern integrated with lattice girders.
"The design can save 50 percent in labor costs on construction sites and 30 percent in raw materials," Chu said.
The design was granted a certificate of registered design by the Intellectual Property Department of Hong Kong and was used for the construction of the Hong Kong Jockey Club Breast Health Centre in Kowloon.