Brooks Range - Brooks Foothills Area, Alaska
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is B/D (varies with drainage). The most common soil order is Gelisols — permafrost soils found in very cold climates. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Brooks Range - Brooks Foothills Area, Alaska. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Arctic Foothills-Arctic Upland-Hills and Plains | 1.3M | Somewhat poorly drained | B/D | Very limited | Very limited |
| Western Brooks Range Mountains, Foothills, and Valleys-Boreal Alpine-Glaciated Valleys | 106K | Poorly drained | D | Very limited | Very limited |
| Northern Brooks Range Mountains-Arctic Upland-Rounded Mountains | 51K | Well drained | B | Very limited | Very limited |
| Western Brooks Range Mountains, Foothills, and Valleys-Boreal Alpine-Rugged Mountains, Calcareous | 29K | Well drained | B | Very limited | Very limited |
| Northern Brooks Range Mountains-Arctic Upland-Rugged Mountains, Calcareous | 1K | Well drained | A | Very limited | Very limited |
| Western Brooks Range Mountains, Foothills, and Valleys-Boreal Alpine-Rounded Mountains | 674 | Very limited | Very limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 100% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.