Transactions of the American Society of Civil Engineers, Vol. LXVIII, September 1910: The Bergen Hill Tunnels. Paper No. 1154 is a comprehensive and detailed technical report documenting the conception, design, and construction of the Bergen Hill Tunnels, a significant engineering achievement of the early 20th century. Authored by George S. Webster and others, this volume presents an in-depth analysis of the challenges faced and solutions implemented during the tunneling project beneath Bergen Hill in New Jersey, a critical link for the Pennsylvania Railroad’s access to New York City. The book meticulously covers the geological conditions encountered, including the complex rock formations and water-bearing strata that posed significant obstacles to the engineers and workers. It describes the innovative construction methods and machinery employed, such as the use of shield-driven tunneling, compressed air techniques, and advanced ventilation systems, all of which were cutting-edge for the era. Detailed illustrations, diagrams, and photographs supplement the text, providing visual insight into the tunnel’s cross-sections, construction phases, and the equipment used. In addition to the technical aspects, the report discusses the logistical and organizational challenges of coordinating a large workforce, ensuring safety, and maintaining progress under difficult conditions. The authors also address the broader significance of the tunnels in improving transportation efficiency, reducing travel times, and facilitating economic growth in the region. This volume stands as a testament to the ingenuity and perseverance of early civil engineers, offering valuable lessons and inspiration for future generations. It is an essential resource for historians, engineers, and anyone interested in the history of American infrastructure and the monumental efforts that shaped modern transportation networks.