Asphalt Calculator Minnesota
Calculate asphalt with MnDOT specs and extreme cold climate considerations.
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MnDOT Standards
Minnesota DOT - Cold climate specs
Results
Asphalt Required
0 tons
Area
0 sq ft
❄️ Cold Climate Note
Minnesota requires PG 58-34 or PG 58-28 binders to resist thermal cracking in extreme cold (down to -40°F).
Standard PG Grade
PG 58-34
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How Asphalt Calculator Minnesota Works
Visual calculation flow
L × W sq ft
→ × Thickness 3"+ typical
→ MnDOT Mix SPWEA/SPNWA
→ Result tons + PG 58-34
Tons = Area × (Thickness ÷ 12) × 145 ÷ 2000 Step 1: Enter dimensions in feet. Minnesota projects typically need thicker asphalt (3"+).
Step 2: Select MnDOT mix type (SPWEA wearing, SPNWA non-wearing, or SPWEB high-traffic).
Step 3: Calculate tonnage. Results include extreme cold binder recommendation (PG 58-34).
Step 4: Consider adding extra thickness for frost heave protection in Minnesota's extreme climate.
Asphalt Calculator Minnesota FAQs
What PG binder grade does Minnesota use for extreme cold?
MnDOT specifies PG 58-34 for most applications, one of the coldest-rated binders in the US. Northern Minnesota may use PG 58-40 for extreme cold resistance. The -34 or -40 indicates the asphalt remains flexible at -34°C (-29°F) or -40°C (-40°F) respectively, preventing thermal cracking.
What is SPWEA vs SPNWA mix in Minnesota?
SPWEA (Superpave Wearing) is the standard surface course mix exposed to traffic and weather. SPNWA (Superpave Non-Wearing) is used for base/binder layers covered by other asphalt. SPWEB240F is a high-durability mix for high-traffic roads like I-94 and I-35.
How thick should a Minnesota driveway be?
Minnesota driveways should be at least 3 inches thick (preferably 3.5-4") over 6-8 inches of Class 5 aggregate base. The thick base is critical for frost heave protection, as Minnesota experiences frost depths of 3-5 feet. Thinner asphalt will crack during freeze-thaw cycles.
What is Minnesota's asphalt paving season?
Minnesota's paving season runs from mid-April to mid-October. MnDOT requires ground temperature of at least 50°F (10°C) and air temperature above 40°F (4°C). Late spring and early fall are busiest. The short season makes scheduling critical—book contractors early in the year.
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