- Our Projects
Pennsylvania Turnpike Southern Beltway
Project Overview
Major components of Section 55B included a 5-span bridge (170-ft high), cuts and fills (160-ft high), an MSE wall, a 1.5:1 steepened rock embankment, 2 culverts, 1 mile of side road improvements & relocations, and 15 stormwater basins. The field exploration portion of this project involved 158 test borings (maximum depth of 200 ft), inclinometers, stormwater infiltration tests, and pavement cores with DCP testing along existing side roads. The following research and design measures were also implemented during the project:
- Research of historical coal & strip mine records
- Interpretation of coal mine boring data to develop composite foundation for the 5-span bridge
- Research of ancient landslides and detailed risk assessment of 14 closed-form landslide features mapped by USGS
- Use of LIDAR data and exploration data from test borings, inclinometers, and residual direct shear testing to identify 5 high-risk landslides containing colluvial soils, active shear zones with friction angles as low as 10°, and artesian groundwater conditions
- Design of a drainage blanket and rock buttress mitigation plan to stabilize landslides as large as 75,000 CY below the main line, as well as along several high-risk basin side cuts
- Related Services
Our Comprehensive Project Workflow: Step-by-Step Guide
Initial Consultation and Client Needs Assessment
Our team responds promptly to your inquiries, ensuring timely communication and immediate attention to your project needs. We work closely with clients to understand all project requirements, ensuring that we capture every detail and objective from the start.
Development of Work Plan
Our expert project managers extend innovative problem-solving to project planning, resulting in technically-sound, cost-effective work plans to better serve our clients.
Project Proposal and Agreement
We provide a detailed project proposal outlining the scope of work, fee schedule, and agreement terms. The project begins once the proposal is approved.
Execution and Quality Assurance
Our highly skilled team of principals, project managers, engineers, and field staff execute the project with precision, maintaining open communication to ensure alignment with client expectations. Each project undergoes a rigorous quality check by our team of licensed professional engineers, ensuring all deliverables meet our high standards of excellence.
Project Delivery and Invoicing
Upon completion, we deliver the final project and issue an invoice for the completed work, ensuring full transparency and satisfaction.
