LOCATION BAYSIDE OR+CA

Established Series
Rev. MHF/RWL
06/2011

BAYSIDE SERIES

The Bayside series consists of very deep, poorly drained soils that formed in alluvium derived from mixed sources. Bayside soils are in depressional areas on flood plains. Slopes are 0 to 3 percent. The mean annual precipitation is about 80 inches and mean annual temperature is about 54 degrees F.

TAXONOMIC CLASS: Fine, mixed, superactive, nonacid, isomesic Aeric Fluvaquents

TYPICAL PEDON: Bayside silty clay loam, native vegetation, on a 1 percent slope at an elevation of 20 feet. When described on June 23, 1988, the soil was moist throughout (Colors are for moist soil unless otherwise noted.)

A1--0 to 10 inches; very dark grayish brown (10YR 3/2) silty clay loam, grayish brown (10YR 5/2) dry; weak medium and coarse subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many fine and very fine roots; common very fine and fine continuous tubular pores; 5 percent gravel; moderately acid (pH 5.8); clear smooth boundary. (5 to 15 inches thick)

A2--10 to 28 inches; very dark grayish brown (10YR 3/2) silty clay loam, grayish brown (2.5Y 5/2) dry; weak coarse subangular blocky structure; hard, firm, sticky and plastic; many fine and few very fine roots; many very fine and fine continuous tubular pores; common fine distinct dark grayish brown (10YR 4/2) and grayish brown (10YR 5/2) iron depletions; 5 percent gravel; moderately acid (pH 5.6); abrupt smooth boundary. (10 to 18 inches thick)

2C--28 to 50 inches; dark grayish brown (2.5Y 4/2) silty clay, light brownish gray (2.5Y 6/2) dry; massive; hard, firm, very sticky and very plastic; few fine roots; common medium and fine discontinuous tubular pores; common fine distinct dark yellowish brown (10YR 4/4) and light olive brown (2.5Y 5/4) masses of iron accumulation; 5 percent gravel; strongly acid (pH 5.5); gradual smooth boundary. (22 to 30 inches thick)

3Cg--50 to 60 inches; gray (5Y 5/1) sandy clay loam, gray (5Y 6/1) dry; massive; slightly hard, friable, slightly sticky and slightly plastic; common medium discontinuous tubular pores; few medium prominent yellowish brown (10YR 5/4), and common fine prominent olive brown (2.5Y 4/4) and light olive brown (2.5Y 5/4) masses of iron accumulation; 10 percent gravel; moderately acid (pH 5.7).

TYPE LOCATION: Curry County, Oregon; about 330 feet south and 990 feet east of the northwest corner of section 25, T. 41 S., R. 13 W. (Latitude 42 degrees, 00 minutes, 13 seconds N.; Longitude 124 degrees, 11 minutes, 48 seconds W.)

RANGE IN CHARACTERISTICS: The mean annual soil temperature is 54 to 59 degrees F., the mean summer soil temperature is 53 to 56 degrees F., and the mean winter soil temperature is 45 to 50 degrees F. The difference between the mean winter and mean summer soil temperatures varies from 5 to 9 degrees F. The soils are usually moist and are dry for less than 45 consecutive days in all parts between depths of 4 and 12 inches in the four months following the summer solstice. The particle-size control section averages 35 to 50 percent clay and 0 and 10 percent rock fragments. Depth to bedrock is greater than 60 inches. Depth to the contrasting 3C horizon is 40 to 60 inches. The umbric epipedon is 15 to over 30 inches thick.

The A1 horizon has hue of 10YR or 2.5Y, value of 2 or 3 moist, 4 or 5 dry and chroma of 2 moist and dry. It is silty clay loam with 27 to 30 percent clay. It has 0 to 10 percent gravel.

The AC horizon has hue of 2.5Y or 10YR, value of 3 or 4 moist, 5 or 6 dry and chroma of 2 moist and dry. It is silty clay loam with 30 to 35 percent clay. It has 0 to 10 percent gravel. Common, fine to medium, distinct to prominent redox depletions occur throughout this horizon.

The 2C horizon has hue of 2.5Y or 5Y, value of 4 or 5 moist, 5 or 6 dry and chroma of 2 moist and dry. It is silty clay with 40 to 50 percent clay. It has 0 to 10 percent gravel. Common, fine to medium, distinct to prominent redox concentrations occur throughout this horizon.

The 3Cg horizon has hue of 2.5Y or 5Y, value of 5 or 6 moist, 6 or 7 dry and chroma of 1 or 2 moist and dry. It is sandy clay loam or loam with 20 to 30 percent clay. It has 0 to 10 percent gravel. Few to many, fine to medium, faint to prominent redox concentrations occur throughout this horizon.

COMPETING SERIES: There are no other series in this family.

GEOGRAPHIC SETTING: Bayside soils are in depressional areas on flood plains. Slopes are 0 to 3 percent. The soils formed in alluvium from mixed sources. Elevations are 0 to 50 feet. The climate is humid, characterized by warm wet winters and warm moist summers with fog. A strong marine influence limits the diurnal and annual range of temperature. The mean annual precipitation is 70 to 90 inches. The mean annual temperature is 52 to 57 degrees F. The frost-free period is 270 to 330 days. Bayside soils are on the Ingram geomorphic surface.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bagness, Bigriver, Ettersburg, and Pistolriver soils. Bagness and Bigriver soils are well drained. Ettersburg soils are well drained, have regularly decreasing organic carbon content with depth and a rare flooding hazard. Pistolriver soils are somewhat poorly drained and have contrasting textures between depths of 20 to 40 inches. Bagness, Bigriver, and Pistolriver soils are on flood plains. Ettersburg soils are on adjacent low stream terraces.

DRAINAGE AND PERMEABILITY: Poorly drained; ponded to slow runoff; slow permeability. These soils are subject to occasional periods of flooding for brief durations from November through April. An apparent high water table fluctuates between depths of 0.5 above to 1.0 feet below the surface from November through April.

USE AND VEGETATION: The soils are mainly used for improved pasture. Native vegetation is Douglas-fir, coastal redwood, red alder, willow, sedges, rushes, bulrushes and bentgrass.

DISTRIBUTION AND EXTENT: Flood plains of southwestern Oregon and northwestern California coast; MLRA 4B. The series is not extensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California

SERIES ESTABLISHED: Eureka Area, California, 1921.

REMARKS: Diagnostic horizons and features recognized in this pedon include:

Umbric epipedon - the zone from 0 to 28 inches (A1 and A2 horizons).

Fluvaquents feature - the zone from 10 to 50 inches having an irregularly decrease in organic carbon.

ADDITIONAL DATA: Partial laboratory data is available for the Bayside soil. Reference sample is 58-Ore-8-23, Curry County, Oregon.

National Cooperative Soil Survey
U.S.A.