Once we got into the more solid formation, the bore went smoothly until we exited and again we had trouble keeping our pitch in the loose material.” “Due to the cobble it was a struggle just to keep our pitches within reason for the diameter pipe we were installing. “The pilot was pretty difficult,” said Burke Williams, operations manager of Earth Energy. (16.5 cm) single-roller type cone drill head for the pilot bore. (445 Nm) of pullback force and was fitted with a 6.5-in. (30.5 m) from the bank.Įarth Energy used its Vermeer D100x120 Navigator horizontal directional drill for this project - the newest addition to its fleet of six Vermeer drill rigs. (8.2 m) below the river bottom and ended up on the river side 100 ft. (45.7 m) to get to the desired depth of 27 ft. The bore began on the creek side with a setback of 150 ft. In addition, the ground conditions varied between a loose gravel and cobble material to sand lenses and back to cemented cobble. Some of the challenges in completing this bore included maintaining the proper alignment within a limited utility corridor across the stream and river. “The entire area within a quarter mile of the bore was also within the floodplain of the river.” within the stream banks and river,” said Hoge. “Overall the terrain across the bore path is relatively flat except for a drop in elevation of approximately 6 ft. (4.6 m) below the bottom of the stream and minimum setbacks were required away from the stream and river banks to prevent encroachment or damage to the wetlands and the sensitive flood plain area. Earth Energy was asked to maintain a minimum depth of 15 ft. (195.1 m) bore would pass under the Boise River and a parallel stream, designated as a sensitive trout fishery, as well as a wetland area. Once these boundaries were determined Earth Energy could proceed in developing a running line and profile for the new water main. One of the primary utilities was an existing gravity sewer main crossing the river near the vicinity of the proposed bore.Īnother critical issue was the location of the utility easement along existing residential homes, which limited the amount of room between the sewer line and private property.
Vermeer Atlas Bore Planner series#
Prior to providing a bid for the project, Earth Energy conducted a series of site visits to determine the general layout of the area and met with the local utility companies to determine the location of existing underground facilities that may be within the proposed bore path. “Earth Energy has a long-term relationship with United Water and their prime contractors to provide directional drilling services on new large-diameter water mains and the smaller service lines to commercial and residential customers,” said Erv Hoge. The water main was being installed to provide a more reliable water source and line pressure to existing and new customers in the rural part of northeast Boise.
Vermeer Atlas Bore Planner install#
Earth Energy also provides HDD services to the petroleum and gas industries, along with remediation of hazardous waste sites.Įarth Energy was contracted by United Water, the local potable water utility in the Boise area, to install a new 24-in. In 1993, the company expanded into larger utility installation projects and today the company specializes in providing HDD services for the installation of fiber optics, phone, power, gas, and water and sewer lines. They began by placing drops for the phone company, which included plowing, trenching, splicing and a variety of underground operations. So it takes a great deal of planning, patience and experience to complete underground installations in this part of the country, and that’s where Earth Energy comes in.Įarth Energy was formed in 1989 by Erv and Darrin Hoge. Soil conditions in this part of the state can range from cobble to sand to rock formations all within a 500-ft. (61-cm) HDPE water line under the Boise River in downtown Boise, Idaho. That was the case for Earth Energy when they were faced with the task of installing a 24-in. The soil conditions in Idaho create challenges that can leave the most experienced horizontal directional drilling (HDD) contractors scratching their heads in disbelief.
(61 cm) HDPE water line under the Boise River in downtown Boise, Idaho. Earth Energy takes on the task of installing a 24-in.
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