REPAIR GLASS BREAKWATER (NORTH SHORE), APRA HARBOR, NAVAL BASE, GUAM
PROJECT DESCRIPTION:
Type of Construction:
- Design build “Lump Sum” contract
- FEDERAL GOVERNMENT/ MILITARY
- Heavy Civil Revetment work
- Concrete Pre-Cast
Structural Features:
- Concrete Armor Units
- Pre-Cast Cubes
- 8 ton/ 16 ton sizes
- 5’6” square/ 8’0 square
- Permanent concrete platform to support the crane while installing the concrete cubes.
Project Size:
- The Project consisted of a 100’ X 70’ area of failed portion of the existing Glass Breakwater
- Section/ Project location is approximately 2.5 miles onto the existing breakwater facing the open Philippine sea side of the breakwater
- Total square footage 7,000- 10,000 square feet of replacement area.
Significant Challenges
The biggest challenge for this design build project was to design an armor unit large enough to meet criteria for wave dissipation while small enough to be placed at the distance from shore within the crane’s radius and capacity. After review of several shapes and sizes the cube concept was developed to meet both RFP design criteria as well as construction means and methods requirements. The project was successful to the extent the Navy adopted the design for breakwater repairs.
