Snow load and frost depth in Spokane County
The City of Liberty Lake, in Spokane County, publishes its construction design criteria: a ground snow load of 58 pounds per square foot, a minimum roof snow load of 40 pounds per square foot under city ordinance, and footings 24 inches below finished grade for frost.
West of the Cascades, Washington’s building code work treats low-lying sites very differently; a 2024 proposal before the State Building Code Council limited one snow drift exemption to sites west of the Cascade range.
Source: City of Liberty Lake, construction design criteria, read November 2026.
What it means for your study
Roofs, gutters, snow guards, decks and asphalt all see more stress here than in Puget Sound, while moss and rot on siding see less. A study that copies component lives from a western Washington template will be wrong in both directions.
Ask the firm where its useful-life figures come from and whether its analyst has inspected in the Inland Northwest. Some Puget Sound firms travel; others will price the trip into the third-year visit.
One regional firm below lists Idaho and Montana alongside Washington, which suits Spokane County communities near the state line.
The rule in Spokane
Spokane County associations follow the same state law as everyone else. Under RCW 64.90.545, the study is updated every year and
“An updated reserve study must be prepared at least every third year by a reserve study professional and based upon a visual site inspection conducted by the reserve study professional.”
Communities created before July 1, 2018 may still be partly under the older acts until January 1, 2028 (how that works).
- 2026Site visit
A reserve study professional walks the property. The first study can instead rest on plans, for buildings not yet built.
- 2027Annual update
Balances, costs and contributions brought up to date. No visit required.
- 2028Annual update
The same again, ready for the budget the board adopts.
- 2029Site visit
The update is prepared by a professional from a fresh visual inspection.
- 2030Annual update
The cycle carries on.
- 2031Annual update
Each update feeds the budget summary owners receive before they ratify the budget.
- 2032Site visit
And again, at least every third year.
Professional study from a visual site inspectionAnnual update; a desk review is enough
Firms that name Spokane
These firms name Spokane, Spokane County or the surrounding region on their own websites.
| Firm | Based | Works in | Credentials stated | From its own website |
|---|---|---|---|---|
| North Star Reserves | Not stated | Six northwestern states | Not stated | Regular work in Idaho, Washington, Oregon, Wyoming, Montana and Utah. |
National firms that say they work in every state: Association Reserves, Reserve Advisors, MillerDodson Associates, Reserve Data Analysis, Global Solution Partners, Apex Reserve Group. See all firms in Washington.