Soil Data Explorer - RIDGWAY

Official Series Description

Lab Data Summary

Aggregate lab data for the RIDGWAY soil series. This aggregation is based on all pedons with a current taxon name of RIDGWAY, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to RIDGWAY were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
114B	94P0265	S1993IL027005	Ridgway	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.4944458,-89.5774994
114B	94P0268	S1993IL027008	Ridgway	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.5013885,-89.5013885
115A	40A2740	S1953IL101007	Ridgway	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.8183327,-87.5838852
115A	40A2741	S1953IL101008	Ridgway	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.7672234,-87.7452774

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the RIDGWAY soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the RIDGWAY series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the RIDGWAY series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the RIDGWAY series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 3D mountains figure.

Competing Series

Soil series competing with RIDGWAY share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the RIDGWAY series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the RIDGWAY series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 3D mountains figure.

Soil series sharing subgroup-level classification with RIDGWAY, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database (updated 2023-10-02).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing RIDGWAY as a major component. Limited to 250 records.

Map Unit Name	Symbol	Map Unit Area (ac)	Map Unit Key	National Map Unit Symbol	Soil Survey Area	Publication Date	Map Scale
Ridgway silt loam, 2 to 5 percent slopes	434B	786	1670789	1t2lf	il023	2006	1:12000
Ridgway silt loam, 2 to 5 percent slopes, rarely flooded	7434B	750	1689091	1tpmt	il023	2006	1:12000
Ridgway silt loam, 10 to 18 percent slopes, eroded	434D2	321	1670788	1t2ld	il023	2006	1:12000
Ridgway silt loam, 0 to 2 percent slopes	434A	228	1670790	1t2lg	il023	2006	1:12000
Ridgway silt loam, 5 to 10 percent slopes, eroded	434C2	94	2109190	28ssd	il025	1993	1:12000
Ridgway silt loam, 2 to 5 percent slopes, eroded, rarely flooded	7434B2	1380	174672	5vrl	il027	1992	1:15840
Ridgway silt loam, 0 to 2 percent slopes	434A	1437	849122	xhl1	il033	2004	1:12000
Ridgway silt loam, 2 to 5 percent slopes	434B	514	849123	xhl2	il033	2004	1:12000
Ridgway silt loam, 5 to 10 percent slopes, eroded	434C2	475	849124	xhl3	il033	2004	1:12000
Ridgway silt loam, 0 to 2 percent slopes	434A	2348	1538812	1nn83	il077	2006	1:12000
Ridgway silty clay loam, 10 to 18 percent slopes, severely eroded	434D3	1091	1538980	1nnfj	il077	2006	1:12000
Ridgway silt loam, 5 to 10 percent slopes, eroded	434C2	426	1538970	1nnf6	il077	2006	1:12000
Ridgway silt loam, 10 to 18 percent slopes	434D	335	1538979	1nnfh	il077	2006	1:12000
Ridgway silt loam, 2 to 5 percent slopes, eroded	434B2	281	1538813	1nn84	il077	2006	1:12000
Ridgway silt loam, 0 to 2 percent slopes, rarely flooded	7434A	63	1540811	1nqbl	il077	2006	1:12000
Ridgway silt loam, 2 to 5 percent slopes, eroded, rarely flooded	7434B2	51	1540812	1nqbm	il077	2006	1:12000
Ridgway silty clay loam, 10 to 18 percent slopes, severely eroded, rarely flooded	7434D3	44	1540816	1nqbr	il077	2006	1:12000
Ridgway silt loam, 10 to 18 percent slopes, rarely flooded	7434D	42	1540817	1nqbs	il077	2006	1:12000
Ridgway silt loam, 5 to 10 percent slopes, eroded, rarely flooded	7434C2	40	1540815	1nqbq	il077	2006	1:12000
Ridgway silt loam, 2 to 5 percent slopes, rarely flooded	7434B	59	728477	sg18	il083	2002	1:12000
Ridgway silt loam, 2 to 5 percent slopes	434B	40	728471	sg12	il083	2002	1:12000
Ridgway silt loam, 2 to 5 percent slopes, rarely flooded	7434B	370	198986	6p1x	il119	2001	1:12000
Ridgway silt loam, 2 to 5 percent slopes, occasionally flooded	8434B	436	183152	64l4	il163	1997	1:12000
Ridgway silt loam, 2 to 5 percent slopes, rarely flooded	7434B	357	2024925	25z35	il191	2008	1:12000
Ridgway silt loam, 0 to 2 percent slopes	434A	1540	1543904	1ntkc	il193	2006	1:12000
Ridgway silt loam, 2 to 5 percent slopes	434B	1532	1543905	1ntkd	il193	2006	1:12000
Ridgway silt loam, 0 to 2 percent slopes, rarely flooded	7434A	1339	1543963	1ntm8	il193	2006	1:12000
Ridgway silt loam, 2 to 5 percent slopes, rarely flooded	7434B	742	1543964	1ntm9	il193	2006	1:12000
Ridgway silt loam, 5 to 10 percent slopes, eroded	434C2	606	1543906	1ntkf	il193	2006	1:12000
Ridgway silty clay loam, 10 to 18 percent slopes, severely eroded	434D3	5	1678569	1tbpd	il199	2007	1:12000

Map of Series Extent

Approximate geographic distribution of the RIDGWAY soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry (updated 2023-10-04).