InfrastructureRenovation
Downtown Transit Hub Renovation
Complete structural renovation and modernization of a 40-year-old transit facility serving 50,000 daily commuters
Location
Portland, OR
Completed
2023
Budget
$12M - $15M
Role
Structural Engineering Services
Key Performance Indicators
98%
On-Time Completion
Completed 2 weeks ahead of schedule
-3.2%
Budget Variance
Under budget by $480K
Zero incidents
Safety Record
1,200+ worker-days with no lost time
4.8/5
User Satisfaction
Post-completion survey results
Challenges
The existing transit hub presented several critical challenges:
- Active facility requiring continuous 24/7 operations during renovation
- Significant structural deterioration in load-bearing columns
- Strict seismic upgrade requirements under new building codes
- Limited staging area in dense urban environment
- Active facility requiring continuous 24/7 operations during renovation
- Significant structural deterioration in load-bearing columns
- Strict seismic upgrade requirements under new building codes
- Limited staging area in dense urban environment
Our Approach
The comprehensive approach included:
1. **Phased Construction**: Developed a 6-phase renovation plan allowing continuous operations
2. **Advanced Shoring Systems**: Implemented temporary support structures for column replacement
3. **Seismic Retrofitting**: Added base isolation systems and structural steel reinforcements
4. **Stakeholder Coordination**: Weekly meetings with transit authority, contractors, and public representatives
1. **Phased Construction**: Developed a 6-phase renovation plan allowing continuous operations
2. **Advanced Shoring Systems**: Implemented temporary support structures for column replacement
3. **Seismic Retrofitting**: Added base isolation systems and structural steel reinforcements
4. **Stakeholder Coordination**: Weekly meetings with transit authority, contractors, and public representatives
Results & Outcomes
The project exceeded expectations across all metrics:
- Structural capacity increased by 40% to accommodate future expansion
- Energy efficiency improved by 35% through upgraded HVAC and envelope
- Accessibility enhanced with ADA-compliant pathways and facilities
- Commuter satisfaction increased from 3.2/5 to 4.8/5 in post-completion surveys
- Structural capacity increased by 40% to accommodate future expansion
- Energy efficiency improved by 35% through upgraded HVAC and envelope
- Accessibility enhanced with ADA-compliant pathways and facilities
- Commuter satisfaction increased from 3.2/5 to 4.8/5 in post-completion surveys
Project Tags
transitstructuralseismicrenovationinfrastructure
Downloads
Full Case Study PDF
4.2 MB
Technical Specifications
1.8 MB