Physics-Based Risk Modeling Ranks Geohazards Along a 656-Mile Rail Corridor Emprise Concepts was awarded a U.S. Department of Transportation Small Business Innovation Research Phase I grant under Topic 25-FR3, Railroad Ground Hazard Mitigation Technology, to establish the feasibility of a real-time geohazard risk forecasting tool for railroads. Railroad geohazards including landslides, rockfall, and debris flows regularly produce losses exceeding $1 million per event, and exi

Instrumentation Oversight Protects Century-Old Structures During East Harlem Tunneling Second Avenue Subway Phase 2 extends the Q line north from 96th Street to 125th Street in East Harlem and adds three new stations at a construction cost of approximately $7 billion. The work includes soft ground and hard rock tunneling, shaft construction, controlled production blasting in a dense urban corridor, and protection of historic structures and active rail lines, executed across f

Emprise Geotechnical Team Supports Tunnel Alternatives Assessment Beneath Knik Arm The Knik Arm Tunnel Feasibility Study evaluated tunnel alternatives beneath Knik Arm to improve long-term connectivity between Anchorage and Port MacKenzie. The study integrated alignment design, geotechnical data, geological assessment, and current tunneling technology to identify technically and economically viable crossing options and narrow the field to preferred alternative alignments. Sub

Helicopter-Dupported Site Investigation Informs Bridge Replacement and Campground Paving Design The Byers Lake Campground and Outlet Bridge Geotechnical Investigation supported planned improvements at the campground in Denali State Park, including replacement of the failing bridge at the lake outlet, paving of campground roads, parking areas, and the boat launch, and potential upgrades to campground infrastructure. The investigation comprised nine geotechnical borings, labora

Ground Modeling Optimizes TBM Launch Design in a Sensitive National Park The Snowdonia Visual Impact Provision (VIP) project involves relocating a section of the existing overhead transmission line between Pentir and Trawsfynydd substations into a 3.4 km-long TBM-driven tunnel. This work significantly improves visual amenity and landscape character within Snowdonia National Park. During early design, an opportunity was identified to optimize the proposed Garth Sealing End Com

Geostatistical Modeling Supports Complex Cavern and Tunnel Design in Hong Kong The Relocation of Diamond Hill Fresh Water and Saltwater Service Reservoirs involves moving the existing DHSRs into four newly constructed underground rock caverns and the construction of a vehicular access tunnel (645 meters long). The project addresses long-term storage and resilience needs while overcoming geological challenges, including zones of weak and deeply weathered rock. Emprise supporte

Differing Site Condition Claims Support The South Academy Widening Jack and Bore project installed a 60-inch drainage pipe beneath active BNSF and UP tracks as part of El Paso County’s corridor improvements. Emprise supported the County by reviewing geotechnical data, evaluating differing site condition claims, analyzing contractor assessments, and verifying post-grouting stability. Our work ensured the jack and bore proceeded safely, mitigated subsurface uncertainty, and pro

Rockfall Mitigation Improves Highway Safety in Glacier View Glenn Highway Milepost 86 is characterized by over-steepened soil slopes with shallow bedrock both upslope and downslope of the highway, with a history of frequent rockfall reaching the highway. Emprise Concepts provided an Alaska-registered Professional Engineer and rope-access professional to provide construction management oversight and perform rock scaling support. Project Information Project Scope Oversight of R

Real-Time Ground Model Updating Reduces Risk and Uncertainty in Construction Emprise Concepts, LLC, in collaboration with the Colorado School of Mines, is developing an innovative software-based framework to update geological and geotechnical ground models in real time during underground construction and tunneling projects. The Phase I effort focuses on developing and testing algorithms that integrate geotechnical instrumentation, monitoring data, construction equipment senso