HomeMy WebLinkAbout250725 Structural Letter_Water Tank Slab on Grade
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Structural Letter
July 19, 2025
Structural Engineer:
DB Structural Design Ltd.
1229 Sage Ct.
Rifle, CO 81650
(970)319-5934
Project:
234 County Rd 236
Silt, CO 81652
To whom it may concern:
As the Engineer of Record for the proposed water tanks project, DB Structural Design hereby confirms
that the water tanks shall be supported by a 10-inch thick cast-in-place concrete slab.
The slab shall be reinforced with #5 bars at 12 inches on center each way, placed at both the top and
bottom of the slab. The concrete shall have a minimum compressive strength of 4,500 psi at 28 days
and shall include 5% air entrainment to ensure durability, especially in freeze-thaw conditions.
To address frost-related concerns, the slab will be covered with sufficient soil such that the subgrade
beneath the slab is protected from frost penetration.
Please feel free to contact us should you require any additional information or clarification.
Sincerely,
DB Structural Design Ltd.
Nate Decker, PE, SE
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07/25/2025