Manson Construction Other service
Ocean Outfall Installation
Ocean outfall installation using horizontal directional drilling and subaqueous trenching.
Description
Manson installs ocean outfalls combining horizontal directional drilling (HDD), conventional trenching and marine trench installation, with direct placement of pipe on the seafloor.
Key features
- Horizontal directional drilling (HDD) for trenchless shore crossings
- Subaqueous trench installation of force mains and outfall pipe
- Concrete marine mattresses placed using sonar positioning
Applications
- Hueneme Outfall Replacement: one-mile-long HDPE outfall extending more than 5,000 ft. offshore
- City of Rehoboth Beach Ocean Outfall: 3,800 LF of pipe by HDD and 2,200 LF in a subaqueous trench
Specifications
| Hueneme outfall length | more than 5,000 ft. offshore |
|---|---|
| Rehoboth HDD length | 3,800 LF |
| Rehoboth trench length | 2,200 LF |
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