Case Study: Cost Overrun from Labor Productivity Issues on Dallas Trinity River Project (Dallas, TX, 2012)
Project Overview
• Name: Trinity River Corridor Project
• Location: Dallas, Texas
• Year: 2012
• Project Size: $1.0 billion
• Scope: Flood control and urban park development involving extensive earthworks and bridge construction
• Lead Agencies/Contractors: City of Dallas /
Category of the Issue, Problem, or Challenge
• Labor Productivity
• Cost Management
Summary of the Issue, Problem, or Challenge
Lower-than-expected labor productivity due to skill shortages and adverse weather caused extended schedule and cost overruns.
Root Cause Analysis
- Skilled Labor Shortage: Difficulty recruiting and retaining skilled workers impacted work rates.
- Weather Delays: Heavy rains and flooding restricted site access and productivity.
- Inefficient Scheduling: Poor sequencing of work and resource allocation contributed to delays.
- Communication Gaps: Insufficient coordination between subcontractors led to idle times.
Impacts Due to the Issue, Problem, or Challenge
- Cost overruns estimated at 12%.
- Project extended by four months.
- Increased labor and equipment costs.
Corrective Actions Taken
- Enhanced workforce training programs and recruitment incentives.
- Developed detailed weather contingency plans.
- Improved construction scheduling and resource management software.
- Fostered better subcontractor coordination with regular meetings and progress tracking.
Lessons Learned
- Labor market conditions must be factored into project planning.
- Robust scheduling and coordination minimize productivity losses.
- Weather risks require proactive mitigation and contingency strategies.
Audit & Prevention: Project Control Questions to Ask on Future Projects to Help Control the Situation
- Has labor availability and skill level been assessed realistically?
- Are schedules optimized to reduce idle time?
- Are weather impacts planned for with contingencies?