Anchorage Concrete Calculator

Anchorage Concrete Calculator | Cubic Yards, Bags & AK Cost | Free Tool
❄ AK CONTRACTOR LICENSED · MUNICIPALITY OF ANCHORAGE · MATANUSKA-SUSITNA · LAST FRONTIER

Anchorage Concrete Calculator

Cubic yards, bags & Anchorage-accurate ready-mix costs for driveways, foundations, slabs & footings — Municipality of Anchorage AK.

$210
Avg Ready-Mix per Cu Yd
4,500
Min PSI — All Exterior Work
6–7.5%
Air Entrainment Required
60 in.
Frost Depth — Anchorage AK

The Anchorage Concrete Calculator helps homeowners and contractors in the Municipality of Anchorage estimate cubic yards, bag count, and ready-mix cost for any Alaska concrete project. Anchorage pricing runs $185–$265/yd — among the highest in the United States due to Alaska's remote supply chain, high labor costs, and extreme climate requirements. Anchorage's 60-inch frost depth demands deep footings on all structures. 4,500 PSI with 6–7.5% air entrainment is required on all exterior concrete due to 60–80 annual freeze-thaw cycles. ACI 306 cold-weather procedures apply roughly October through May. Seismic Design Category E applies across Anchorage — rebar and engineering are mandatory on all foundations. All work requires a Municipality of Anchorage building permit and Alaska licensed contractor. More tools at Concrete Toolkit.

❄ Anchorage AK Pricing · MOA · Municipality of Anchorage

Anchorage Concrete Calculator

Cubic yards, bags & Anchorage ready-mix cost — instant results

Residential driveway: 5-6 in. min, 4,500 PSI, 6-7.5% air entrainment required, heated subbase recommended, insulated curing blankets required Oct-May. MOA building permit required. Alaska licensed contractor required.

Driveway 5-6 in · Garage slab 5 in · Foundation wall 10 in+ · Footing 12 in+ at 60 in below grade

Cubic Yards Required
—
Including waste factor

📋 Project Summary

    💵 Anchorage Cost Estimate

      📐 Anchorage Driveway Cross-Section — Alaska Extreme Cold Climate Standard

      Broom Finish — Anchorage AK Standard
      Concrete — 5-6 in. Min (Anchorage Driveway)
      4,500 PSI Min · 6–7.5% Air Entrainment · W/C 0.40 Max · ACI 306 Oct–May
      No. 4 Rebar 12-18 in. O.C. — Seismic Zone E · AK Structural Requirement
      2 in. Rigid Foam Insulation Board — Frost Protection / Permafrost Buffer
      6 Mil Vapor Barrier — Required Under All Anchorage Interior Slabs
      6-8 in. Compacted Free-Draining Gravel — MOA Spec · Heated in Winter Pours
      Compacted Subgrade — Anchorage Silty / Glacial Soils · Frost Depth 60 in. MOA
      27
      Cu ft per cu yd
      45
      80 lb bags per cu yd
      $210
      Avg Anchorage ready-mix/yd
      Concrete Slab Rebar Insulation Board Vapor Barrier Gravel Base Glacial Subgrade

      Anchorage Concrete Specifications

      Anchorage presents one of the most demanding concrete environments in North America. Three overlapping challenges define every project: extreme freeze-thaw cycling (60–80 cycles per year), a 60-inch frost depth requiring deep footings, and Seismic Design Category E — the highest in the continental US — driven by Anchorage's location on the Pacific Ring of Fire. On top of this, Anchorage's silty and glacial soils have poor bearing capacity in many neighborhoods, and isolated areas around Turnagain Arm and south Anchorage have near-surface permafrost that must be evaluated before any foundation work. All exterior concrete requires 4,500 PSI with 6–7.5% air entrainment and a water-cement ratio of 0.40 maximum. ACI 306 cold-weather procedures apply October through May.

      🔵 Anchorage Minimum Concrete Specifications — MOA / Alaska Building Code

      All exterior flatwork (driveways, sidewalks, patios): 4,500 PSI min, 5-6 in. min, 6-7.5% air entrainment, W/C 0.40 max, rebar required · Foundation walls: 5,000 PSI, 10 in. min thick, rebar per AK seismic engineer spec, 60 in. frost depth · Footings: 5,000 PSI min, bottom of footing at 60 in. below grade · Interior heated slabs: 4,000 PSI, vapor barrier, insulation required · Oct–May: ACI 306 cold-weather mandatory — heated enclosures, insulated blankets, heated mix water · All work: MOA building permit + Alaska licensed contractor required.

      ⚠ ACI 306 Cold-Weather Concreting — Oct–May Anchorage

      Anchorage's cold season runs October through May with January lows averaging -5°F and extreme events reaching -30°F. ACI 306 procedures are mandatory whenever ambient temperature is below 40°F — which in Anchorage means essentially 7 months of the year. Requirements: heat mix water and aggregates, target delivery temp 55–65°F, never pour on frozen subgrade (thaw with hydronic heating mats), enclose the pour area with heated tents, wrap finished concrete in insulated curing blankets, and maintain above 50°F for a minimum of 7 days. Unprotected winter concrete in Anchorage will freeze before reaching design strength and must be completely demolished.

      Anchorage Ready-Mix Pricing

      Anchorage is served by a small number of local ready-mix suppliers with limited competition — pricing is substantially above the national average. Winter surcharges for heated mix water and cold-weather delivery add $15–$30/yd from October through May. Short-load fees of $175–$350 apply for orders under 3 yards. Pump truck hire is $600–$1,100 for remote or constrained sites. Remote delivery outside the MOA (Wasilla, Palmer, Kenai) carries additional haul surcharges.

      PSI GradeAnchorage Price / Cu YdAir Entrained?Best ForAK Code
      4,000 PSI$185–$215Interior OnlyHeated interior slabs, garages (heated)Interior OK
      4,500 PSI$198–$232Required 6-7.5%All exterior flatwork, driveways, sidewalksAK Minimum
      5,000 PSI$215–$252Required 6-7.5%Foundations, footings, retaining wallsCompliant
      5,500 PSI$232–$268Required 6-7.5%Commercial, seismic-critical structural elementsCompliant

      ✓ Verify Your Anchorage Contractor Before You Pour

      Alaska requires all contractors to hold a valid Alaska Contractor License issued by the Alaska Division of Corporations, Business & Professional Licensing. Verify your contractor's license at commerce.alaska.gov/cbpl. The Municipality of Anchorage Development Services Department issues building permits — contact 907-343-8300 before any project. All foundation and structural work requires a licensed Alaska PE (structural engineer). Always confirm current general liability insurance ($1M min) and Alaska workers compensation coverage in writing before signing any contract.

      Key Anchorage Concrete Tips

      • All footings must reach 60 inches below finished grade — Anchorage's frost depth is among the deepest in US cities. Never assume a shallower frost line in any Anchorage neighborhood. Confirm exact depth with the MOA Development Services Department before excavation begins.
      • Assess for permafrost before any foundation work — portions of south Anchorage, Turnagain Arm, and some Hillside neighborhoods have near-surface permafrost or ice-rich soils. A geotechnical investigation is essential before any significant foundation project. Disturbing permafrost can cause irreversible settlement.
      • Never pour on frozen or frost-heaved subgrade — thaw the subgrade completely using hydronic heating mats or propane heaters before concrete placement. Pouring on frozen ground causes uneven settlement, slab heave, and bond failure. Allow at least 48–72 hours for full subgrade thaw before scheduling the truck.
      • Use rigid foam insulation board under all Anchorage slabs — install 2-inch minimum XPS rigid insulation beneath driveways, garage slabs, and exterior flatwork to act as a thermal break between the warm slab and the frozen subgrade. This dramatically reduces frost heave and extends slab life.
      • Seismic Design Category E — engineer all foundations — Anchorage experienced the 1964 Great Alaska Earthquake (M9.2) and remains highly seismic. All foundations, retaining walls, and structural slabs must be designed by a licensed Alaska structural PE with full seismic reinforcement per the Alaska Building Code.
      • Plan Anchorage pours for May–September window only — exterior concrete work in Anchorage is practical from mid-May through mid-September. Winter pours are technically possible but require heated enclosures, heated materials, and experienced cold-weather crews — adding 30–50% to project cost. Schedule all major outdoor pours during the summer window.

      FAQs — Anchorage Concrete Calculator

      How much does concrete cost per yard in Anchorage AK?+
      $198–$232 per cubic yard for 4,500 PSI air-entrained ready-mix in Anchorage — one of the highest prices in the US. 5,000 PSI structural mix runs $215–$252/yd. Winter cold-weather mix surcharge adds $15–$30/yd Oct–May. Short-load fees of $175–$350 for under 3 yards. Pump truck adds $600–$1,100. Fully installed driveways typically run $18–$32 per square foot in Anchorage due to Alaska's high labor costs.
      Why is the frost depth 60 inches in Anchorage?+
      Anchorage's subarctic climate produces average January temperatures of -5°F with lows reaching -30°F. Ground freezing penetrates deeply into the soil — up to 60 inches in normal years and deeper during extreme winters. All structural footings must extend below 60 inches to rest on soil that never freezes, preventing frost heave from lifting the structure. This is why Anchorage foundation costs are substantially higher than in temperate US cities — excavation alone can require 5–7 feet of depth on all foundation perimeters.
      Is air-entrained concrete required in Anchorage?+
      Yes — 6 to 7.5% air entrainment is mandatory for all Anchorage exterior concrete. Anchorage experiences 60–80 freeze-thaw cycles annually. Without air entrainment, water enters the concrete pore structure, freezes, expands, and causes progressive surface scaling and spalling within 3–5 years. Air-entrained concrete resists this by providing microscopic air bubbles that absorb freeze-thaw expansion pressure. Non-air-entrained concrete should only be used for interior heated slabs in Anchorage.
      Do I need a permit for concrete work in Anchorage?+
      Yes — Municipality of Anchorage building permits are required for foundations, driveways, retaining walls, structural slabs, and most concrete work. Contact MOA Development Services at 907-343-8300 or visit 4700 Elmore Road. Foundation projects require a licensed Alaska PE stamp on engineering drawings. Inspections are required at excavation, footing, wall pour, and backfill stages. Unpermitted work in Anchorage can result in stop-work orders, fines, and mandatory demolition — especially on foundation and structural work.
      Can I pour concrete in Anchorage during winter?+
      Yes — but it is expensive and technically demanding. Winter pours in Anchorage require: a fully heated enclosure over the pour area, hydronic heating mats to thaw the subgrade, heated mix water (delivery temp 55–65°F), insulated curing blankets, and temperature monitoring for 7–14 days after placement. These measures add 30–50% to total project cost. Most Anchorage contractors and owners plan all major exterior concrete work during the May–September summer window to avoid winter pour premiums.

      Official Anchorage Concrete Resources

      Alaska contractor licensing, MOA building permits, ACI 306 cold-weather standards, and seismic engineering references for compliant Anchorage concrete work.

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      Alaska CBPL — Contractor Licensing

      License Verification

      The Alaska Division of Corporations, Business & Professional Licensing (CBPL) administers contractor registration and licensing for all construction trades in Alaska. Verify any Anchorage concrete contractor's license number, class, current status, and complaint history before signing any contract. Alaska law requires licensed contractors for residential and commercial construction work. Working with an unlicensed contractor in Alaska removes all consumer protections and may void your homeowner's insurance coverage for the work performed.

      Visit Alaska CBPL
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      MOA Development Services — Permits

      Permits & Inspections

      The Municipality of Anchorage Development Services Department issues all building permits for concrete work within MOA limits including driveways, foundations, retaining walls, and structural slabs. Contact MOA Development Services at 907-343-8300 or visit 4700 Elmore Road, Anchorage AK 99507 before beginning any project. Foundation and structural projects require a licensed Alaska PE stamped engineering drawings submitted for plan review. Inspections are required at excavation, footing, structural pour, and backfill stages. Always obtain your permit before breaking ground in Anchorage.

      Visit MOA Development Services
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      ACI 306 — Cold-Weather Concreting

      ACI Standard

      ACI 306 is essential reading for every Anchorage concrete contractor. It covers heated enclosure requirements, mix water temperature targets, aggregate heating procedures, insulated curing blanket specifications, temperature monitoring protocols, and protection duration requirements for extreme cold climates. Anchorage's subarctic climate — with temperatures below 40°F for 7+ months per year — makes ACI 306 the most important concrete standard for Alaska work. ACI 306 non-compliance is the leading cause of early-age concrete failure, frozen pours, and structural rejection on Anchorage construction projects.

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