USDA SSURGO COUNTY SOIL REFERENCE

Jefferson County, Alabama Soil Summary

This page summarizes USDA SSURGO mapped soil information for Jefferson County, Alabama.

Mapped Land Coverage

100%719,455.75 mapped acres of 719,455.76 Census land acres

Coverage measures mapped SSURGO intersection with Census land geometry. It does not mean that every parcel or point has complete soil information.

Soil at a Glance

Largest mapped soil unit

Montevallo-Nauvoo association, 6 to 45 percent slopes

Symbol: 29 • 34.69% of mapped area

Largest estimated component

Nauvoo

184,479.67 acres (25.64% of mapped area)

Mapped units & components

106 mapped soil units

Top 15 shown below · 54 component series

Dominant drainage class

Well drained

Highest acreage drainage class

Dominant hydrologic group

Group B

Runoff potential classification

Weighted average slope

17.44%

Terrain slope analysis

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Top Mapped Soil Units

Showing the 15 largest mapped units, representing 82.66% of mapped soil area.

Symbol	Map Unit Name	Mapped Acres	% of Mapped Area
29	Montevallo-Nauvoo association, 6 to 45 percent slopes	249,554.02	34.69%
31	Nauvoo fine sandy loam, 8 to 15 percent slopes	54,470.46	7.57%
34	Nauvoo-Montevallo association, 10 to 40 percent slopes	46,039.32	6.4%
35	Palmerdale complex, steep	30,177.03	4.19%
44	Urban land	27,960.8	3.89%
40	Townley-Nauvoo complex, 8 to 15 percent slopes	27,856.27	3.87%
8	Bodine-Birmingham association, steep	26,336.32	3.66%
18	Fullerton-Urban land complex, 8 to 15 percent slopes	22,374.42	3.11%
39	Sullivan-State complex, 0 to 2 percent slopes	20,512.07	2.85%
9	Bodine-Fullerton association, steep	20,382.69	2.83%
27	Leesburg-Rock outcrop complex, steep	16,436.1	2.28%
17	Fullerton-Bodine complex, 8 to 15 percent slopes	15,267.69	2.12%
41	Townley-Urban land complex, 8 to 15 percent slopes	13,363.44	1.86%
33	Nauvoo-Urban land complex, 8 to 15 percent slopes	12,331.84	1.71%
20	Gorgas-Rock outcrop complex, steep	11,752.92	1.63%

2934.69% of mapped area

Montevallo-Nauvoo association, 6 to 45 percent slopes

Mapped Area249,554.02 acres

Rank#1 of 106 in county

317.57% of mapped area

Nauvoo fine sandy loam, 8 to 15 percent slopes

Mapped Area54,470.46 acres

Rank#2 of 106 in county

346.4% of mapped area

Nauvoo-Montevallo association, 10 to 40 percent slopes

Mapped Area46,039.32 acres

Rank#3 of 106 in county

354.19% of mapped area

Palmerdale complex, steep

Mapped Area30,177.03 acres

Rank#4 of 106 in county

443.89% of mapped area

Urban land

Mapped Area27,960.8 acres

Rank#5 of 106 in county

403.87% of mapped area

Townley-Nauvoo complex, 8 to 15 percent slopes

Mapped Area27,856.27 acres

Rank#6 of 106 in county

83.66% of mapped area

Bodine-Birmingham association, steep

Mapped Area26,336.32 acres

Rank#7 of 106 in county

183.11% of mapped area

Fullerton-Urban land complex, 8 to 15 percent slopes

Mapped Area22,374.42 acres

Rank#8 of 106 in county

392.85% of mapped area

Sullivan-State complex, 0 to 2 percent slopes

Mapped Area20,512.07 acres

Rank#9 of 106 in county

92.83% of mapped area

Bodine-Fullerton association, steep

Mapped Area20,382.69 acres

Rank#10 of 106 in county

272.28% of mapped area

Leesburg-Rock outcrop complex, steep

Mapped Area16,436.1 acres

Rank#11 of 106 in county

172.12% of mapped area

Fullerton-Bodine complex, 8 to 15 percent slopes

Mapped Area15,267.69 acres

Rank#12 of 106 in county

411.86% of mapped area

Townley-Urban land complex, 8 to 15 percent slopes

Mapped Area13,363.44 acres

Rank#13 of 106 in county

331.71% of mapped area

Nauvoo-Urban land complex, 8 to 15 percent slopes

Mapped Area12,331.84 acres

Rank#14 of 106 in county

201.63% of mapped area

Gorgas-Rock outcrop complex, steep

Mapped Area11,752.92 acres

Rank#15 of 106 in county

Estimated Soil Components

Showing the 15 largest estimated component series. Component acreages are estimated from SSURGO map-unit component percentages (comppct_r) applied to spatially measured map-unit acreage.

Component	Drainage Class	Hydrologic Group	Estimated Acres	% of Mapped Area
Nauvoo	Well drained	B	184,479.67	25.64%
Montevallo	Well drained	D	130,823.78	18.18%
Urban land	Unspecified	Unspecified	58,139.12	8.08%
Fullerton	Well drained	B	28,440.47	3.95%
Bodine	Somewhat excessively drained	A	28,300.23	3.93%
Palmerdale	Somewhat excessively drained	A	21,124.86	2.94%
Townley	Well drained	D	19,977.41	2.78%
Sullivan	Well drained	B	14,999.74	2.08%
Leesburg	Well drained	B	9,861.66	1.37%
Birmingham	Well drained	C	9,217.71	1.28%
Tupelo	Somewhat poorly drained	C/D	9,071.62	1.26%
Gorgas	Well drained	D	8,839.56	1.23%
Water	Unspecified	Unspecified	7,821.59	1.09%
Rock outcrop	Unspecified	Unspecified	7,402.99	1.03%
Decatur	Well drained	B	6,796.11	0.94%

Component acreage is estimated from SSURGO map-unit component percentages. Component values are not independently mapped polygon boundaries.

Nauvoo

25.64%

Estimated Acres184,479.67

Drainage ClassWell drained

Hydrologic GroupB

Montevallo

18.18%

Estimated Acres130,823.78

Drainage ClassWell drained

Hydrologic GroupD

Urban land

8.08%

Estimated Acres58,139.12

Drainage ClassUnspecified

Hydrologic GroupUnspecified

Fullerton

3.95%

Estimated Acres28,440.47

Drainage ClassWell drained

Hydrologic GroupB

Bodine

3.93%

Estimated Acres28,300.23

Drainage ClassSomewhat excessively drained

Hydrologic GroupA

Palmerdale

2.94%

Estimated Acres21,124.86

Drainage ClassSomewhat excessively drained

Hydrologic GroupA

Townley

2.78%

Estimated Acres19,977.41

Drainage ClassWell drained

Hydrologic GroupD

Sullivan

2.08%

Estimated Acres14,999.74

Drainage ClassWell drained

Hydrologic GroupB

Leesburg

1.37%

Estimated Acres9,861.66

Drainage ClassWell drained

Hydrologic GroupB

Birmingham

1.28%

Estimated Acres9,217.71

Drainage ClassWell drained

Hydrologic GroupC

Tupelo

1.26%

Estimated Acres9,071.62

Drainage ClassSomewhat poorly drained

Hydrologic GroupC/D

Gorgas

1.23%

Estimated Acres8,839.56

Drainage ClassWell drained

Hydrologic GroupD

Water

1.09%

Estimated Acres7,821.59

Drainage ClassUnspecified

Hydrologic GroupUnspecified

Rock outcrop

1.03%

Estimated Acres7,402.99

Drainage ClassUnspecified

Hydrologic GroupUnspecified

Decatur

0.94%

Estimated Acres6,796.11

Drainage ClassWell drained

Hydrologic GroupB

Component acreage is estimated from SSURGO map-unit component percentages. Component values are not independently mapped polygon boundaries.

Drainage Class Distribution

Well drained61%

438,841.6 acres

Unknown / Unmapped10.81%

77,775.4 acres

Somewhat excessively drained6.87%

49,425.1 acres

Somewhat poorly drained1.26%

9,072.79 acres

Poorly drained0.7%

5,061.87 acres

Moderately well drained0.56%

4,058.27 acres

Hydrologic Soil Group Distribution

Group B37.16%

267,319.46 acres

Group D22.35%

160,818.86 acres

Group Unknown / Unmapped10.81%

77,775.4 acres

Group A6.87%

49,438.09 acres

Group C2.06%

14,796.29 acres

Group C/D1.68%

12,060.56 acres

Group B/D0.28%

2,026.37 acres

Hydrologic soil groups are USDA/NRCS classifications related to runoff potential under specified soil conditions. They are not a property-level flood-risk rating.

Slope Characteristics

Weighted Average Slope: 17.44%

Nearly Level (0-2%)10.4%

74,854.84 acres

Gently Sloping (2-8%)5.73%

41,232.09 acres

Moderately Sloping (8-15%)31.64%

227,650.55 acres

Steep (15-30%)25.72%

185,077.98 acres

Very Steep (>30%)6.61%

47,570.22 acres

Unspecified Slope1.09%

7,849.35 acres