ABOUT 探花精选系列

探花精选系列 is a full service general contractor providing heavy civil/marine, industrial, diving, underwater marine survey, demolition and engineering services to public and private clients throughout the western United States, with particular focus on the Columbia, Snake and Willamette River System. 探花精选系列鈥檚 facility also offers marine services and state-of-the-art shop and equipment. Since 1983, 探花精选系列 has built respected relationships with clients, vendors, subcontractors and members of the community that provide a valuable network of resources and support. We take on broad ranging projects that show our unique ability to find creative solutions for diverse challenges. Our award winning success over the years brings value to our clients.

ABOUT 探花精选系列 - VIDEO


  • 24/7 Emergency Services
  • Water and Land-based Cranes
  • Heavy Lift Cranes
  • Dock, Pier and Cofferdam Repair and Construction
  • Piledriving and Deep Foundations
  • Bridge, Terminal and Marina Repair and Construction
  • Power and Communication Cables
  • Lock and Dam Fish Run Enhancements
  • Floating Surface Collectors
  • Industrial Utility Support
  • Open / Closed Cell Structures
  • Debris and Sediment Removal
  • Concrete Repair and Leak Sealing
  • Scour Protection and Remediation
  • Pipelines, Intakes and Outfall Structures
  • Trash Rack and Stop Log Removal and Replacement
  • Clamshell and Hydraulic Excavator Dredging/Capping
  • Demolition of existing structures; concrete demolition, industrial demolition



  • 24/7 Emergency Services
  • Heavy Rigging and Machinery
  • Hydraulic Heavy Lift Jacks
  • Machine Shop with State-of-the-Art Equipment
  • Equipment Repairs and Preventative Maintenance
  • Portable Machining, Field Machining, On-site Machining
  • In-place Machining and Milling for Onsite Repairs


  • 24/7 Emergency Services
  • Hard Hat Commercial Diving, Construction, Surveys
  • Pier, Bulkhead, Foundation Scour Assessment
  • Underwater Welding Cutting
  • Hazmat Diving Services
  • Salvage & Recovery
  • Underwater Demolition
  • Leak Detection
  • Pipeline Inlet/outlet Inspection
  • Penstock Inspection
  • Pipeline and Cable Repair
  • Cathodic Protection 
  • Acoustic Underwater Monitoring
  • Remote Operated Vehicle & Sonar 
  • Real Time Kinematic Accuracy/Precision
  • Sonar Bathymetry scanning
  • LiDAR scanning


  • Marine Structural Engineering
  • Naval Architecture
  • 颁惭/骋颁鈥
  • Design-Build
  • Value Engineering



  • Wharfage
  • Dockage
  • Moorage
  • Repairs
  • Trans-loading
  • Tug Repair
  • Ship Repair
  • Barge Repair
  • Tug Rentals
  • Barge Rentals
  • Work Boat Rentals
  • Marine Equipment Rentals
  • Break Bulk Cargo Transfer
  • Ro-Ro (Roll-on/Roll-off Shipping) Operations


  • 1,300 linear feet of frontage on the west side of the Willamette River, above the 100-year flood plain
  • Approved future rail spur on the Portland and Western line
  • Two high docks, Marina and boat ramp
  • Concrete tilt-up construction
  • 10,540 SF  two story office space
  • 10,150 SF Equipment repair shop and storage with 26’ ceilings, six drive-in service doors
  • 14,180 SF machine shop and steel fabrication area with two 25 ft entry doors with drive through capability; two overhead 15 ton bridge cranes with 55 ft span each
  • Additional 8,930 SF covered storage area