Appendix H: Geotechnical Report
GEOTECHNICAL REPORT
Avatar River Bend Crossing
Commercial and Residential Development
Fountain, Colorado
PREPARED FOR:
Avatar Fountain, LP
P.O. Box 927215
San Diego, CA 92192
JOB NO. 161921
April 2, 2018
Respectfully Submitted,
RMG – Rocky Mountain Group
/s/
Kelli Zigler
Project Geologist
Reviewed by,
RMG – Rocky Mountain Group
Geoff Webster, P.E.
Sr. Geotechnical Project Manager
Table of Contents
- GENERAL SITE AND PROJECT DESCRIPTION
- Project Description and Scope of Work
- Existing Site Conditions
- FIELD INVESTIGATION AND LABORATORY TESTING
- Drilling
- Laboratory Testing
- SECTION 1 – RESIDENTIAL DEVELOPMENT
- Subsurface Materials
- Groundwater
- CONCLUSIONS AND RECOMMENDATIONS
- Geotechnical Considerations
- Site Preparation
- Foundation Recommendations
- Open Excavation Observations
- Floor Slabs
- Exterior Concrete Flatwork
- Lateral Earth Pressures
- CONSTRUCTION CONSIDERATIONS
- Surface Grading and Drainage
- Perimeter Drain
- Underslab Drain
- Concrete
- Exterior Backfill
- Structural Fill – General
- SECTION 2 – FULL SPECTRUM DETENTION AREA
- 2.1 Detention Storage Criteria
- 3.1 General Physiographic Setting
- 3.2 Topography
- 3.3 Vegetation
- 5.1 General Soil Types
- 5.2 Subsurface Materials
- 5.3 Groundwater
- 6.0 CONCLUSIONS AND RECOMMENDATIONS
- Soil and Rock Design Parameters
- 6.2 Seismic Design
- 6.3 Embankment Recommendations
- SECTION 3 – COMMERCIAL DEVELOPMENT
- SUBSURFACE CONDITIONS
- Subsurface Materials
- Groundwater
- CONCLUSIONS AND RECOMMENDATIONS
- Geotechnical Considerations
- Site Preparation
- Foundation Recommendations
- Open Excavation Observations
- Floor Slabs
- Exterior Concrete Flatwork
- Lateral Earth Pressures
- SECTION 4 – PAVEMENT RECOMMENDATIONS
- Pavement Design
- Pavement Thickness
- CLOSING
- FIGURES
- APPENDIX A