Geotechnical Engineer
Storm Drainage Certification Letter
(date)
City of Colorado Springs
City Engineering Division
30 S. Nevada Avenue, Suite 702
PO Box 1575, MC 720
Colorado Springs, CO 80901-1575
Attn.: David R. Lethbridge
Subdivision Engineering Review Manager
Subject: Backfill and Bedding Placement for:
(Project Name)
Colorado Springs, Colorado
Job No.
Gentlemen:
Representatives of (Geotechnical Eng. Firm) periodically visited the site and performed
field density testing during subgrade preparation and placement of drainage facility backfill.
Testing was performed in general compliance with the frequency indicated in the City of
Colorado Springs Standard Specifications. Results of field density tests have previously been
provided. Field density tests were taken by (Geotechnical Eng. Firm) personnel with test results
presented in Daily Reports No.
through
dated between
and
. Results generally indicate densities, which meet those specified in the City of
Colorado Springs Standard Specifications for backfill and/or embankment.
Representatives of (Geotechnical Eng. Firm) also periodically observed the placement of
pipe and/or drainage facility bedding. Bedding materials appeared to be in general compliance
with the specifications presented in the City of Colorado Springs Standard Specifications.
If you have further questions regarding this letter, or the construction from a geotechnical
point of view, please call.
Very truly yours,
(Geotechnical Engineering Firm)
By
, P.E.