|Mike Van Horn, Inc.
Registered California Geotechnical Engineer | Registered California Civil Engineer
Office Phone: (831) 429-9364 | SoilSurgeon@Cruzio.com | 101 Forrest Avenue, Santa Cruz, California
FAQs: Follow-Up Services
|What do soil report follow-up services cost?
charges are calculated strictly on time accrued at current billing
rates based on portal-to-portal travel to the project site and back to
the office. A current fee schedule page is provided for your reference.
|What is a geotechnical plan review?
soil engineer reviews the final, project design plans to determine if
they are in general conformance with the soil report and writes a brief approval letter. This
process usually takes less than an hour - assuming the plans are reasonably complete and
the designs reasonably conform to the recommendations of the soil
report. Otherwise, more cycles of plan reviews may be needed
before the plans are acceptable to this office.
|What is involved with foundation observation services by the soil engineer?
soil engineer visits the project site, observes the foundation
excavations, and directs the foundation contractor to correct any
deficiencies with the soil conditions, as needed. Once the
foundation excavations are evaluated as being acceptable by the soil
engineer, the he writes up a brief field or office approval letter,
depending on the type of foundation. This process usually takes
one to two hours maximum per site visit for standard shallow
foundations, and three to 10 hours total for deep pier
foundations. Deep pier foundations may require continuous
observation during the pier drilling operations.
|What is involved with the County of Santa Cruz's geotechnical conformance letter?
soil engineer visits the project site at least once and confirms that all
geotechnical related construction, such as retaining walls and site
drainage structures have been adequately installed. If there are
engineered drainage plans, the soil engineer requires a brief letter
from the civil engineer stating the completed project drainage
facilities are in conformance with the project plans or are acceptable
to the civil engineer. The soil engineer may need to provide instructions for basic
drainage around the buildings if no civil engineer is involved with the
project. In the office, the soil engineer will subsequently write
up the geotechnical conformance letter outlining all previous
observation services rendered for the project, as required by
the County of Santa Cruz. This conformance letter service usually takes
a total of about two hours, but can be longer depending on the adequacy
of constructed site features.
|What is involved with the soil engineer providing soil testing and observation during grading operations?
||The soil engineer provides:
(1) Field meetings as needed and coordinates field testing and grading observation requirements.
(2) Observation by the soil engineer of graded fill base keys, subdrains and other pertinent grading features, as needed.
(3) The soil engineer directs the sub-contracted field technician to test soil compaction on an as-needed basis.
(4) Orders soil laboratory compaction reference tests and other qualification tests, as needed.
(5) Writing of grading reports as needed or as required by pertinent government agencies.
The soil engineer needs about a week to set up sub-contractors, initial site soil sampling, and initial meetings with field technicians and grading contractors.
This work item can be very expensive! The cost of these services usually exceed the cost of the soil report plus the other geotechnical services by several fold! I you are planning significant grading at your project, it is important to anticipate this engineering fee.
|What is involved with subdrain observation services by the soil engineer?
soil engineer visits the project site, observes the subdrain locations,
and directs the foundation or grading contractor to correct any deficiencies in
the subdrain soil conditions, as needed. This
process usually takes one or two hours maximum per visit.