Cornforth Consultants
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    • Earth and Rockfill Dams >
      • Barney Reservoir
      • Frog Lake Reservoir
      • Iron Gate Dam Raise
      • McGuire Dam Raise
      • Bonneville Cofferdam
      • Bull Run No. 2 Seismic Stability Analysis
    • Levees and Canals >
      • Libby Dike Rehab.
      • St. Johns Dike Stabilization
      • Cowlitz River Levees
      • Swift Canal Failure
    • Earthquake Engineering >
      • Barney Dam Seismic Analysis
      • Fern Hill WTP Liquefacation Study
      • Bull Run No. 2 Seismic Stability Analysis
      • Mt. Tabor Seismic Stability Analysis
      • Port Westward Power Plant Seismic Design
    • Rock Slopes and Tunnels >
      • Libby Rockfall Mitigation
      • Sandy River Pipeline Tunnels
      • Ketchikan Third Avenue Extension
      • Sain Creek Water Supply Tunnel
      • Montana Rockfall Hazard Rating System
    • Foundations >
      • Port Westward Power Plant
      • Cascade Locks Casino
      • Air National Guard Hangar
      • Biglow Canyon Windfarm
      • Oakridge Water System Improvements
    • Concrete Dams and Locks >
      • John Day Lock & Dam
      • Marmot Dam Removal
      • The Dalles Dam
      • Willamette Falls Dam
      • Bonneville Dam
    • Transportation >
      • OTIA Cracked Bridge Geotechnical Baselines
      • Newburg Dundee Bypass Design DEIS
      • I-84 Sandy River Bridge Investigation
      • Tanana River Bridge Foundation, Tok, Alaska
      • Montana RHRS Implementation
      • Ketchikan Third Avenue Extension
    • Ports and Airports >
      • Navy CVN Drydock
      • Depoe Bay Seawall Distress
      • Willamette Falls Flow Control Structure
      • Air National Guard Hangar
    • Water and Wastewater >
      • Fern Hill Water Treatment Plant
      • Tualatin Valley North Transmission Line
      • Evaluation of 28 Water Storage Facilities
      • City of Sandy Water Treatment Plant
      • Mt. Tabor Reservoir No. 5 Cap Study
      • Oakridge Water System Improvements
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Brent A. Black

Brent Black, P.G., C.E.G.
Registration
Engineering Geologist - OR, WA

Hydrogeologist - WA

Geologist - OR, WA, UT, ID

Career
1993 - present
Senior Associate Geologist
Cornforth Consultants, Portland, OR

1992 - 1993
Project Geologist
Eckstein & Associates, Kent, OH

Education
1993 M.S. in Geology
Kent State, Kent, OH

1990 B.S. in Geology
West Virginia University, Morgantown, WV

Honors/Societies
Research Coordinator, Subcommittee on Rockfall Management AFP10(1)
Chair, Advances in Landslides, Analysis, and Control Subcommittee AFP10(2)
Transportation Research Board of the National Academies of Sciences, Engineering, and Medicine

Member, NCHRP Project 24-35 Guidelines for the Certification and Management of Flexible Rockfall Protection Systems

Past Chair, Association of Engineering and Environmental Geologists, Oregon Section
Senior Associate Geologist
Mr. Black has over 25 years of experience as an Engineering Geologist in the Pacific Northwest. His areas of expertise include site investigation and instrumentation, rockfall evaluations, soil and rock borrow source investigations and quarry development, geologic hazards, and construction quality assurance. He has performed numerous projects in remote areas requiring considerable planning, coordination, and communications with a wide range of personnel, and he successfully fosters working relationships with contractors and owners. 

​Mr. Black  fulfills leadership positions in research committees and lectures on specialized aspects of interest to a national audience.  A select list of recent lectures follows the project list below.

Several projects representative of Mr. Black’s experience include:
​
  • Bull Run Water Supply Pipeline Geologic Reconnaissance, Sandy, Oregon.
  • Prospect 2 Penstock Rockfall, Prospect, Oregon
  • Power Canal Geohazard Investigation, FERC Dam Safety Inspection, Leaburg, Oregon
  • Dock Failure and Submarine Slide, Skagway, Alaska
  • Clackamas Creeks Hydroelectric Project Geologic Hazards Evaluation, Estacada, Oregon.
  • Swift Powerhouse Rockfall, Cougar, Washington
  • Washington Park Station, Westside Light Rail, Portland, Oregon
  • US Highway 2 Rockfall Mitigation, Libby, Montana
  • Pacific Highway Geotechnical Evaluation, Woodland, Washington
  • SR 504 Slide, Castle Rock, Washington
  • Forsythe Road Slide, Oregon City, Oregon
  • McGuire Dam - Left Abutment Landslide, Carlton, Oregon
  • PGE Penstock No. 2 Failure, Bull Run Hydroelectric Powerhouse, Sandy, Oregon
  • I-15 Rockfall Mitigation, Wolf Creek, Montana
  • Skyline Drive Slide, West Linn, Oregon
  • 3rd Avenue Extension, Ketchikan, Alaska
  • US 191 Highway Improvements, Moab Utah
  • Middle Fork Snoqualmie River Road Improvements, North Bend, Washington
  • Washougal River Road Rockfall Hazard Assessment, Washougal, Washington
  • Oak Grove Powerhouse Rock Slope, Clackamas County, Oregon
  • Cecil Roadway Slide, Klamath National Forest, Cecil, California
  • Going-to-the-Sun-Road, Columbia Falls, Montana
  • ERFO - M & M Mainline Slide and Road Realignment BLM Forest, Quartzville, Oregon
  • Banks-Lowman Highway Rockslide, Banks, Idaho
  • Washington SR 12 Rockfall Mitigation Project, White Pass, Washington
  • Beartooth Highway Landslides, Red Lodge, Montana

Selection of technical presentations and lectures
  • Rock Slope Scaling Specifics, Case History of Select Montana Department of Transportation Scaling Projects,  and Scaling Plans and Specifications, Transportation Research Board Workshop 170, Washington DC
  • The Impact of Rockfall on Dam Facilities, Oregon Dam Safety Conference
  • Field Trip Co-Lead - D3, I-15 Rockfall Mitigation, Helena, Montana Northwest Geotech Workshop
  • I-15 Rockfall Mitigation Case History, Montana Preconstruction Conference

​Mike Meyer - Gerry Heslin - George Machan - ​Charlie Hammond - Brent Black - Darren Beckstrand - Chris Carpenter - Ben George
​
Wade Osborne -  Tom Westover - Greg Landau - Aine Mines - Logan Allender - Andy Kost - Adam Koslofsky - Sebastian Dirringer
Rachel Hunt -Justin McCarley - Aleyna Link - Michael Bunn - Andy Vessely - Larry Pierson - John Sager
  • Home
  • Services
    • Earth & Rockfill Dams
    • Reservoirs, Canals, and Levees
    • Spillway Safety Inspections
    • Landslides and Rockfall
    • Earthquake Engineering
    • Geologic Hazards
    • Geotechnical Site Characterization
    • Hydrogeology
    • Expert Witness
    • Concrete Dams and Locks
    • Geotechnical Instrumentation
    • Deep and Shallow Foundations
    • Geotechnical Manuals
  • Industries
    • Water Resources
    • Energy
    • Natural Resources
    • Industrial
    • Transportation
    • Ports and Airports
    • Expert Witness
  • Projects
    • Earth and Rockfill Dams >
      • Barney Reservoir
      • Frog Lake Reservoir
      • Iron Gate Dam Raise
      • McGuire Dam Raise
      • Bonneville Cofferdam
      • Bull Run No. 2 Seismic Stability Analysis
    • Levees and Canals >
      • Libby Dike Rehab.
      • St. Johns Dike Stabilization
      • Cowlitz River Levees
      • Swift Canal Failure
    • Earthquake Engineering >
      • Barney Dam Seismic Analysis
      • Fern Hill WTP Liquefacation Study
      • Bull Run No. 2 Seismic Stability Analysis
      • Mt. Tabor Seismic Stability Analysis
      • Port Westward Power Plant Seismic Design
    • Rock Slopes and Tunnels >
      • Libby Rockfall Mitigation
      • Sandy River Pipeline Tunnels
      • Ketchikan Third Avenue Extension
      • Sain Creek Water Supply Tunnel
      • Montana Rockfall Hazard Rating System
    • Foundations >
      • Port Westward Power Plant
      • Cascade Locks Casino
      • Air National Guard Hangar
      • Biglow Canyon Windfarm
      • Oakridge Water System Improvements
    • Concrete Dams and Locks >
      • John Day Lock & Dam
      • Marmot Dam Removal
      • The Dalles Dam
      • Willamette Falls Dam
      • Bonneville Dam
    • Transportation >
      • OTIA Cracked Bridge Geotechnical Baselines
      • Newburg Dundee Bypass Design DEIS
      • I-84 Sandy River Bridge Investigation
      • Tanana River Bridge Foundation, Tok, Alaska
      • Montana RHRS Implementation
      • Ketchikan Third Avenue Extension
    • Ports and Airports >
      • Navy CVN Drydock
      • Depoe Bay Seawall Distress
      • Willamette Falls Flow Control Structure
      • Air National Guard Hangar
    • Water and Wastewater >
      • Fern Hill Water Treatment Plant
      • Tualatin Valley North Transmission Line
      • Evaluation of 28 Water Storage Facilities
      • City of Sandy Water Treatment Plant
      • Mt. Tabor Reservoir No. 5 Cap Study
      • Oakridge Water System Improvements
  • Staff
  • Resources
  • Careers
    • Geotechnical Engineer
  • Contact Us