Case Studies

I-95 Waterline Crossing

Project Details

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Project Name
I-95 Waterline Crossing
General Contractor
Rising Sun Inc. - Fairfax, VA
Location
Stafford County, VA
Ground Conditions
Lean clay conditions
Akkerman Equipment
Model 240A GBM System with Akkerman Quick-Connect System. Akkerman Lubrication System and Guidance Systems. Paired with Michael Byrne D72-1.5 Auger Boring Machine
Pipe
42-in steel casing
Total Length/Hard Rock Section
462 LF

Project Overview

Rising Sun Inc. completed guided auger boring operations for a waterline crossing beneath I-95 in Stafford County, Virginia. The project required precise installation of a 42-in steel casing over an extended drive length while maintaining strict alignment tolerances beneath a major transportation corridor.

Utilizing the Akkerman 240A GBM System in conjunction with an auger boring machine, the crew achieved accurate line and grade control throughout the installation. The project marked a successful application of guided auger boring technology in high-profile infrastructure crossing conditions.

Challenges

  • Maintaining strict line and grade accuracy beneath an active interstate corridor
  • Executing a relatively long guided auger bore requiring consistent alignment control
  • Working within lean clay soils requiring controlled excavation and lubrication
  • Meeting tight tolerance requirements for waterline installation

Solution

  • Utilized the Akkerman 240A GBM System with Quick-Connect and guidance systems for precision alignment
  • Integrated lubrication systems to reduce friction and maintain bore efficiency over long distances
  • Paired guided boring technology with the auger boring machine to optimize excavation and advance rates
  • Applied controlled installation methods to maintain alignment within tight tolerance requirements

Outcome

  • Successfully completed the 462 LF guided auger bore beneath I-95
  • Achieved line and grade accuracy within tight project tolerances
  • Maintained consistent performance throughout the long installation in clay conditions
  • Enabled installation of critical waterline infrastructure with minimal surface disruption
  • Demonstrated the effectiveness of guided auger boring for long, high-precision roadway crossings

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