Highway Bypass Corridor
Project Overview
A 12-mile highway bypass corridor designed to relieve congestion on a major interstate interchange. ATF World provided civil modeling and phased construction planning for the full corridor, including three bridge overpasses, two drainage retention systems, and 8.5 miles of underground utility relocations. The project demanded coordinated phased construction to maintain traffic flow throughout the 28-month build period.
Key Metrics
Measurable outcomes that demonstrate the impact of our work.
Project Story
From challenge to resolution — how we delivered results.
Challenge
The corridor crossed multiple existing utility easements — gas, water, telecom, and high-voltage electrical — requiring precise relocation sequencing to avoid service interruptions to over 40,000 residents. The phased construction plan had to maintain at least two lanes of traffic in each direction at all times, creating complex interdependencies between earthwork, bridge construction, and utility work.
Solution
ATF World created a comprehensive Civil 3D and Revit-based model that mapped every existing utility against the proposed alignment. We developed a simulation that visualized 14 construction phases, allowing the general contractor to optimize equipment staging, lane closures, and subcontractor sequencing. Our team coordinated directly with five utility providers to validate relocation schedules against the master timeline.
Result
The 4D planning model identified three critical sequencing conflicts before mobilization, saving an estimated 11 weeks of potential delays. Overall construction timeline was compressed by 18% compared to initial projections. The client used the 4D simulation in public stakeholder meetings, significantly improving community buy-in for the lane closure schedule.
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