GTR Review Checklist for Centerline Cuts and Embankments

B. Centerline Cuts and Embankments

 (Pgs. 2-2 to 2-6)

In addition to the basic information listed in Section A, is the following information provided in the project geotechnical report.

Are station-to-station descriptions included for:

1. Existing surface and subsurface drainage?
   
       (Yes   /   No   /   Unknown or N/A)

2. Evidence of springs and excessively wet areas?
   
       (Yes   /   No   /   Unknown or N/A)

3. Slides, slumps, and faults noted along the alignment?
   
       (Yes   /   No   /   Unknown or N/A)

Are station-to-station recommendations included for the following?

General Soil Cut or Fill

4. Specific surface/subsurface drainage recommendations?
   
       (Yes   /   No   /   Unknown or N/A)

5. Excavation limits of unsuitable materials?
   
       (Yes   /   No   /   Unknown or N/A)

6. *Erosion protection measures for back slopes, side slopes, and ditches, including riprap recommendations or special slope treatment.
   
       (Yes   /   No   /   Unknown or N/A)

Soil Cuts

 (Pgs. 5-23, 5-24)

7. *Recommended cut slope design?
   
       (Yes   /   No   /   Unknown or N/A)

8. Are clay cut slopes designed for minimum F.S. = 1.50?
   
       (Yes   /   No   /   Unknown or N/A)

9. Special usage of excavated soils?
   
       (Yes   /   No   /   Unknown or N/A)

10. Estimated shrink-swell factors for excavated materials?
    
        (Yes   /   No   /   Unknown or N/A)

11. If answer to 3 is yes, are recommendations provided for design treatment?
    
        (Yes   /   No   /   Unknown or N/A)

Fills

 (Pgs. 5-1 to 5-3)

12. Recommended fill slope design?
    
        (Yes   /   No   /   Unknown or N/A)

13. Will fill slope design provide minimum F.S. = 1.25?
    
        (Yes   /   No   /   Unknown or N/A)

Rock Slopes

14. *Are recommended slope designs and blasting specifications provided?
    
        (Yes   /   No   /   Unknown or N/A)

15. *Is the need for special rock slope Stabilization measures, e.g., rockfall catch ditch, wire mesh slope protection, shotcrete, rock bolts, addressed?
    
        (Yes   /   No   /   Unknown or N/A)

16. Has the use of "template" designs been avoided (such as designing all rock slopes on 0.25:1 rather than designing based on orientation of major rock jointing)?
    
        (Yes   /   No   /   Unknown or N/A)

17. *Have effects of blast induced vibrations on adjacent structures been evaluated?
    
        (Yes   /   No   /   Unknown or N/A)

*A response other than (yes) or (N/A) for any of these checklist questions is cause to contact the appropriate geotechnical engineer for a clarification and/or to discuss the project.