Greater Nenana Area, Alaska
The dominant drainage class is Moderately well drained and the dominant hydrologic group is B (moderate infiltration). 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 Greater Nenana Area, Alaska.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Water | 24K | Not rated | Not rated | ||
| Steese silt loam, 20 to 30 percent slopes | 21K | Well drained | B | Very limited | Very limited |
| Minto-Chatanika complex, 3 to 7 percent slopes | 19K | Moderately well drained | B | Very limited | Very limited |
| Eielson-Piledriver complex, occasionally flooded | 19K | Moderately well drained | B | Very limited | Very limited |
| Fairbanks silt loam, 12 to 20 percent slopes | 19K | Well drained | B | Very limited | Very limited |
| Tatlanika-Totatlanika complex | 18K | Very poorly drained | D | Very limited | Very limited |
| Minto silt loam, 7 to 12 percent | 17K | Moderately well drained | B | Very limited | Very limited |
| Eielson very fine sandy loam | 16K | Moderately well drained | B | Very limited | Very limited |
| Eielson-Tanana complex | 16K | Moderately well drained | D | Very limited | Very limited |
| Chatanika silt loam, 3 to 7 percent slopes | 14K | Poorly drained | D | Very limited | Very limited |
| Windy Creek-Browne complex | 14K | Poorly drained | D | Very limited | Very limited |
| Tanacross peat | 14K | Very poorly drained | D | Very limited | Very limited |
| Chatanika-Goldstream complex, 0 to 5 percent slopes | 12K | Poorly drained | D | Very limited | Very limited |
| Fairbanks silt loam, 20 to 30 percent slopes | 12K | Well drained | B | Very limited | Very limited |
| Lupine very fine sandy loam | 12K | Well drained | B | Very limited | Very limited |
| Liscum-Terric Cryohemists-Bolio complex | 11K | Very poorly drained | D | Very limited | Very limited |
| Bolio peat | 11K | Very poorly drained | D | Very limited | Very limited |
| Minto silt loam, 3 to 7 percent slopes | 10K | Moderately well drained | B | Very limited | Very limited |
| Gerstle-Moosehead complex | 9K | Well drained | B | Very limited | Very limited |
| Hydric Cryofibrists-Liscum complex | 8K | Very poorly drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 91% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 91% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.