Horizontal Directional Drilling

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.

Crossing Diameter Length Location
Intracoastal Waterway Crossing 42 6,678 Lousiana
Bay Crossing – South Bay Channel 42 5,950 Texas
Bayou Crossing 42 5,696 Lousiana
Bayou Crossing 36 7,479 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
Creek Crossing 30 5,799 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
Bayou Crossing 12 8,222 Alaska
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