Frost Line Depth in Hawkins County, TN: Tennessee Codes Range 5

No official local value

No official frost line depth is published for Hawkins County.

No verified code nearby; verified Tennessee codes range 5–13 in.

Source and how we checked

We searched this place’s own code and website and found no published frost line depth.

Climate: 87 nights a year at or below 32 °F (NOAA 1991–2020, Rogersville 1 Ne, 3.8 mi).

Checked Oct 2026. Report a correction

Footings Deck Water line Fence post

5–13 inrange of verified Tennessee codes
87nights a year at or below 32 °F
34%of nearby soil rated “none” for frost action (USDA)

Does Hawkins County have an official frost line depth?

No adopted frost line depth found for Hawkins County in its official documents (checked Oct 2026). No verified code lies near Hawkins County; the Tennessee codes we verified range from 5 to 13 in. Ask the building department for Hawkins County’s own number before you dig.

What frost line depth does Hawkins County use for footings under Table R301.2(1)?

Call 811 at least a few working days before you dig, so buried lines are marked.
Confirm the frost line depth with the Hawkins County building department.
Ask whether your project needs a permit (decks, larger sheds and footings usually do).
Dig below 13 in (the deepest verified state value) unless the building department tells you otherwise.
Book the footing inspection before you pour concrete.

How deep do footings, decks and water lines need to be in Hawkins County?

Drawn with the deepest Tennessee official value (13 in). Confirm Hawkins County’s own depth before you dig.

House or garage footing Deck footing Water service line Fence post

House or garage footing in Hawkins County: dig at least 13 in (33 cm). Below the frost line and at least 12 in deep (IRC R403.1.4).

Using the nearby official value of 13 in until Hawkins County confirms its own
Project	Depth	Rule
House or garage footing	13 in	Below the frost line and at least 12 in deep (IRC R403.1.4)
Deck footing (attached)	13 in	Below the frost line and at least 12 in deep (IRC R507.3)
Water service line	19 in	6 in below the frost line and at least 12 in deep (IRC P2603.5)
Fence post bottom	13 in	No code rule; common practice is below the frost line

Work out posts, concrete and footing sizes with the fence post depth calculator or the deck footing calculator.

How cold does it get in Hawkins County?

Average lows are at or below freezing from Dec to Feb. 87 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 25.5 °F.

NOAA 1991–2020 climate normals, Rogersville 1 Ne station, 3.8 mi away, elevation 1,355 ft.

Monthly temperatures as a table

°F	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Low	25.5	28.7	34.9	44.1	53.4	60.9	64.9	63.5	57.5	45.2	34.9	28.8
High	45.3	50.2	59.1	68.6	76.2	82.6	85.5	84.9	80.4	70.1	58.2	48.2

Hawkins County has more freezing nights than 34 of the 59 other Tennessee places we track. The Tennessee median is 84. Coldest: Greene County; mildest: Memphis.

How likely is the soil in Hawkins County to heave?

None 34%Moderate 34%High 31%

USDA rates the sampled soil around Hawkins County as 34% none, 34% moderate, 31% high for frost action (main soils: Water, Litz, Melvin).

USDA NRCS soil survey, 9 sample points within 2 mi. Higher frost action means more risk of heave; see frost heave.

Hawkins County at a glance

Frost line depth: No official local value
Population (2023 est.): 58,600
Mean annual temperature: 56.3 °F
ZIP codes (12): 37642 · 37645 · 37660 · 37711 · 37731 · 37745 · 37811 · 37857 · 37869 · 37873 · 37881 · 37891