Frost Line Depth in Lincoln, NE: Sarpy County Requires 42 in

No official local value

No official frost line depth is published for Lincoln.

Nearby official codes require 42 in (1 verified code).

Source and how we checked

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

Climate: 143 nights a year at or below 32 °F (NOAA 1991–2020, Lincoln Municipal Airport, 4.6 mi).

Checked Oct 2026. Report a correction

Footings Deck Water line Fence post

42 in1 verified code within 36 mi
143nights a year at or below 32 °F
51%of nearby soil rated “none” for frost action (USDA)

Does Lincoln have an official frost line depth?

No adopted frost line depth found for Lincoln in its official documents (checked Oct 2026). The nearest official values, from codes we verified, are 42 in. Use the deepest of them until the building department confirms Lincoln’s own number.

What frost line depth does Lincoln use for footings under Table R301.2(1)? Is it 42 in, like Sarpy County?

Call 811 at least a few working days before you dig, so buried lines are marked.
Confirm the frost line depth with the Lincoln building department.
Ask whether your project needs a permit (decks, larger sheds and footings usually do).
Dig below 42 in (the deepest nearby 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 Lincoln?

Drawn with the deepest nearby official value (42 in). Confirm Lincoln’s own depth before you dig.

House or garage footing Deck footing Water service line Fence post

House or garage footing in Lincoln: dig at least 42 in (107 cm). Below the frost line and at least 12 in deep (IRC R403.1.4).

Using the nearby official value of 42 in until Lincoln confirms its own
Project	Depth	Rule
House or garage footing	42 in	Below the frost line and at least 12 in deep (IRC R403.1.4)
Deck footing (attached)	42 in	Below the frost line and at least 12 in deep (IRC R507.3)
Water service line	48 in	6 in below the frost line and at least 12 in deep (IRC P2603.5)
Fence post bottom	42 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 Lincoln?

Average lows are at or below freezing from Nov to Mar. 143 nights a year reach 32 °F or colder; Jan is coldest, with an average low of 14.4 °F.

NOAA 1991–2020 climate normals, Lincoln Municipal Airport station, 4.6 mi away, elevation 1,190 ft.

Monthly temperatures as a table

°F	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Low	14.4	18.4	28.7	39.2	51.2	62.1	66.7	64.1	54.3	41	28	18.2
High	35.6	40.6	53.6	64.8	75	85.2	89.4	87.2	80.1	66.6	51.7	39.4

Lincoln has fewer freezing nights than 3 of the 7 other Nebraska places we track. The Nebraska median is 143. Coldest: Buffalo County; mildest: Douglas County.

What frost line depth do towns near Lincoln use?

One official code near Lincoln is verified.

Official frost line depths near Lincoln
Place	Verified frost line	Distance
Sarpy County	42 in	36 mi away

How likely is the soil in Lincoln to heave?

None 51%High 45%

USDA rates the sampled soil around Lincoln as 51% none, 4% moderate, 45% high for frost action (main soils: Urban land, Kennebec, Aksarben).

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

Lincoln at a glance

Frost line depth: No official local value
County: Lancaster County
Population (2023 est.): 294,757
Mean annual temperature: 52.3 °F
ZIP codes (24): 68336 · 68430 · 68502 · 68503 · 68504 · 68505 · 68506 · 68507 · 68508 · 68510 · 68512 · 68514 · 68516 · 68517 · 68520 · 68521 · 68522 · 68523 · 68524 · 68526 · 68527 · 68528 · 68531 · 68588