NWCEL Northwest Council of Engineering Labs

Become a
Special Inspector

›› Introduction
›› License Types
›› Types of Work


Inspection Courses

Reinforced Concrete:
›› Batch Plant
›› Concrete II
›› Concrete Intensive
›› Pre/Post-Tension
›› Shotcrete Intro.
›› Shotcrete Recert.

Steel & Welding:

›› Steel & Welding I
›› Steel & Welding II
›› Steel & Welding Intensive

Masonry Inspection

Ultrasonic Technician
›› Certification Program

Magnetic Particle Testing Level II

Special Inspector Certification Renewal

Lateral Framing Special Inspection

Proprietary Anchors Inspection

Plan Reading

›› In-Place Density
›› Embankment and Base
›› Aggregate
›› Asphalt II

WAQTC In-Place Density Technician

WAQTC In-Place Density Technician

Class Dates: March 12th and 14th
Class Time: 4:00 PM to 8:00 PM
Classroom Location: Lake Washington Institute of Technology (11605 132 nd Ave NE, Kirkland, WA 98034)
Laboratory Training Dates: March 19th and 21th
Laboratory Training Times: 4:00 PM - 8:00 PM
Laboratory Location: AAR Testing (7126 180th Ave. NE C101 Redmond, WA)
Written Exam Date: March 22nd (Retake exam if necessary March 23rd)
Written Exam Time: 8:00 AM - 10:00 AM
Written Exam Location: WSDOT NW Region Training Facility | 6431 Corson Ave. S, Seattle, WA 98108
Practical Exam Dates: March 24th or 25th
Practical Exam Times: TBD (each examinee will be assigned a time slot on one of the exam days)
Practical Exam Location: TBD

Laboratory (L)
EXAM Written (W)
Performance (P)
T 99 Standard Proctor C W
T 180 Modified Proctor C W
R 75 Family of Curves C, L  
T 272 One Point Proctor C, L W, P
T 255/T 265 Moisture of Aggregate/Soil C, L W, P
T 85 Specific Gravity of Coarse Aggregate C, L  
T 310 Nuclear In-Place Density of Soil/Aggregate C, L W, P
T 209 Theoretical Maximum Density of Asphalt C  
T 166 Bulk Specific Gravity of Asphalt C  
T 355 Nuclear In-Place Density of Asphalt C, L W, P
  • Attendance of training sessions is required prior to taking the written and practical exams.
  • Students must pass the written exam before taking the practical exam.
  • After successfully passing both the written and practical exams, WAQTC certification numbers will be issued by WSDOT.
  • WAQTC certification is accepted in the following states: AK, CO, HI, ID, NM, OR, TX, UT, and WA

You will receive an In-Place Density manual with the WAQTC FOP procedures for the test methods listed above. You can also download these test procedures at www.waqtc.org

Instructor:  Chris Christensen, PE. Senior Project Manager, AAR Testing. Chris is a registered professional engineer in Washington, Alaska, Nevada and Utah. He has been a WAQTC examiner for the past 13 years. He has worked on dozens of airport and highway projects during his 25 years of experience in the construction testing and inspection industry.

Cost:   NWCEL Member $350, Nonmember $400

Registration:  Please email Chris Christensen at chris@nwcel.org with student name and company affiliation. Class size is limited to a maximum of 24 students.