Horizontal Directional Drilling (HDD) is a trenchless method of installing pipelines, casings, and conduits in the areas where traditional open cut excavations are not feasible and/or not desired for environmental and/or constructability reasons.
It is commonly used for the installation of pipelines beneath rivers, highways, railroads and other environmentally sensitive areas, or areas where the topography or site conditions along a proposed alignment conflicts with conventional cut and cover installation practices.
During the HDD process, a pilot hole is first drilled along a predetermined path. The pilot hole is then enlarged in single or multiple steps (reaming passes) to accommodate the pullback of the carrier pipe into the enlarged hole.
We are presently operating HDD rigs capable of completing projects both large and small with pipe sizes up to 60 inches in diameter and HDD lengths over 15,000 ft.
Experience in Horizontal Direct Drilling
Laney Directional Drilling has over 31 years of Trenchless Technology construction experience and has installed more than 2,900 Trenchless Crossings and 1,000 miles of Trenchless Pipelines. Here are several notable accomplishments within this portfolio:
- Completed Projects in 40 US States and 13 Countries on 6 Continents.
- 238 International crossings ranging from 4” to 48” up to 6,500’ in length.
- 81 crossings over lengths greater than 5,000’.
- 18 crossings over lengths greater than 7,000’.
- 8 crossings over lengths greater than 9,000’.
- World Record installation of 10,971 at the time of completion in 2012.
- Nearly 400 major river crossings ranging from 2” to 42” up to 9,700’ in length.
The following list highlights the longest and most complex HDD projects as well as several international projects completed by Laney Directional Drilling. A complete list of experience is available upon request.
|Intracoastal Waterway Crossing||42||6,678||Lousiana|
|Bay Crossing – South Bay Channel||42||5,950||Texas|
|River Crossing – Trinity River||36||7,313||Texas|
|Lake Crossing – Lake Bistineau||36||5,792||Louisiana|
|Channel Crossing – Houston Ship Channel||30||8,340||Texas|
|River Crossing – San Jacinto River||30||5,816||Texas|
|Facility Entry Crossing||30||5,778||Texas|
|Channel Crossing – Corpus Christi Ship Channel||20||9,899||Texas|
|River Crossing – Calcasieu River||20||9,708||Louisiana|
|Channel Crossing – Houston Ship Channel||20||7,168||Texas|
|Bay Crossing – Nueces Bay||16||7,303||Texas|
|Bay Crossing – Nueces Bay||16||7,250||Texas|
|Channel Crossing – Houston Ship Channel||12||11,625||Texas|
|Channel Crossing – Houston Ship Channel||12||9,643||Texas|
|Bay Crossing – Barnegat Bay||12||9,008||New Jersey|
|Bay Crossing – Nueces Bay||10||9,865||Texas|
|Bay Crossing – Lavaca Bay||10||7,733||Texas|
|River Crossing – Mississippi River||8||7,411||Lousiana|
|River Crossing – Mississippi River||8||7,213||Louisiana|
|Lake Crossing – Lake Houston||6||10,971||Texas|