HomeMy WebLinkAbout2730-ID - Farmway and Ustick Emergency Vehicle Access Addendum
GEOTECHNICAL | ENVIRONMENTAL | MATERIALS
January 28, 2026
Project No. 2730-ID
Todd Campbell Construction, Inc
2560 N Stokesberry
Meridian, Idaho 83642
Attention: Dean Waite
Subject: Emergency Access Road
Farmway Crossing Subdivision – Located at 4202 Farmway Road, Caldwell, ID 83605
Reference: Geotechnical Evaluation for “Ustick and Farmway” a(n) ± 44.45 Acre Site-
Located at 4202 Farmway Road, Caldwell, ID 83605, GeoTek Project No. 2730-ID,
Dated June 26, 2024
This document presents an addendum to the above referenced Geotechnical Evaluation. As
requested by Ardurra, additional recommendations are presented below pertaining to emergency
access roads supporting 80,000 lb. Fire Apparatus. The recommendations contained in the
referenced report that are not superseded by the recommendations presented herein, should be
properly incorporated into continued development of the site.
Emergency Vehicle Access Road
Based on a R-Value of 8 and a Traffic Index of 6 taken from the above referenced geotechnical
evaluation, it is recommended that 2.5 inches of HMA over 4 inches of ¾” minus aggregate base
over 12 inches of uncrushed aggregate subbase be used as a paved road section in order to support
the roadway use by an 80,000 lb. Fire Apparatus. Aggregate Base and Subbase gradation
specifications requirement per the current edition of the Idaho Standards for Public Works
Construction (ISPWC) Manual. Materials shall be placed in accordance with ISPWC Standard
Specifications for Highway Construction. Maintenance may be required depending on traffic and
weather conditions.
City of Caldwell
APPROVED FOR CONSTRUCTION
These plans and/or specifications have been reviewed
for compliance with the City of Caldwell specifications.
This review does not relieve the owner, engineer, or
contractor of the responsibility to design and/or
construct these facilities in compliance with all current
applicable federal, state, and local laws, rules,
regulations, ordinances, orders of decisions,
development agreements, or specifications.
Inconsistencies not isolated by City staff shall not be
construed as approved unless specifically addressed
as a variance and granted by City Council as a
variance. The City retains the right to enforce
provisions of said document and policies even if
inconsistencies are not noted by the City. Any
revisions of these approved plans will require a
resubmittal for a full review and approval.
Name:Martin Gergen
FARMWAY AND USTICK JANUARY 28, 2026
TODD CAMPBELL CONSTRUCTION, INC PAGE 2
PROJECT NO. 2730-ID
GeoTek, Inc.
LIMITATIONS
The materials encountered on the project site and utilized in our laboratory study are believed
representative of the area; however, soil materials vary in character between excavations and
conditions exposed during mass grading. Site conditions may vary due to seasonal changes or other
factors. GeoTek, Inc. assumes no responsibility or liability for work, testing, or recommendations
performed or provided by others. Since our study is based upon the site materials observed,
selective laboratory testing and engineering analysis, the conclusions and recommendations are
professional opinions. These opinions have been derived in accordance with current standards of
practice and no warranty is expressed or implied. Standards of practice are subject to change with
time.
The opportunity to be of service is greatly appreciated. If you have any questions concerning this
report or if we may be of further assistance, please do not hesitate to contact the undersigned.
Respectfully submitted,
GeoTek, Inc.
Eirik Berggren P.E. Kyle C. Miley, PE
Project Engineer Project Engineer
Enclosures:
Appendix A, Gravel Equivalency Calculations
FARMWAY AND USTICK JANUARY 28, 2026
TODD CAMPBELL CONSTRUCTION, INC PAGE 3
PROJECT NO. 2730-ID
GeoTek, Inc.
APPENDIX A
FARMWAY AND USTICK JANUARY 28, 2026
TODD CAMPBELL CONSTRUCTION, INC PAGE 4
PROJECT NO. 2730-ID
GeoTek, Inc.
Design Type Two (Asphalt + Gravel + Pit Run)
Asphalt Mat Thickness (GE=1.95)
(Set) Asphalt Thickness Desired = 2.50 Inches 0.20833 Feet
GE2 = Asphalt (Gravel Equivalent)
GE2 = (GE of 1.95) x (Asphalt Thickness) 0.40625 Feet
Gravel Leveling Course (GE = 1.10)
(Set) Gravel Thickness Desired = 4.00 Inches 0.33333 Feet
GE3 = Gravel (Gravel Equivalent)
GE3 = (GE of 1.10) x (Gravel Thickness) 0.36667
Pit Run Base Course (GE = 1.00)
GE4 = Pit Run (Gravel Equivalent)
GE4 = GE1 - (GE2+GE3) 0.99348
GE4/1.00 0.99348 Feet = 11.92 Inches