SOUTH CITY SECTOR PLAN: The Sector Inventory

ENVIRONMENTAL CONSTRAINTS

View Environmental Constraints Map

 

ENVIRONMENTAL DATA

ENVIRONMENTAL CONSTRAINTS
  • Slopes exceeding 15% can be found on 2,013 acres or 28.5% of the land.
  • Areas south of Rodgers Ridge contain mostly water soluble carbonate rocks that have formed abundant sinkholes, caves and underground channels.
  • Most soils in this sector have severe limitation ratings for development except for areas with Litz-Sequoia soil.
  • Over 50% of the land on Dickinson Island is a floodplain, and the island is used as an airport for single- or twin-engine planes.

LOCALIZED FLOODING

  • Areas that frequently experience localized flooding after severe rains are:
  • Goose Creek along Maryville Pike
  • Sims Road and Avenue A in the Vestal neighborhood
  • Baker Creek along Lenland Avenue and Brownairs Lane
  • The cul-de-sac of Meadow Oaks Lane
  • Knob Creek along Green Meadow Drive Soil erosion also occurs along the creek bank

WATER QUALITY

  • Small ponds which are fed only by underground water and rain often have very high algae content in the spring. These can be seen in several ponds located on the southern side of the sector
  • Groundwater contamination by leaking of underground fuel storage was suspected in the Chapman Highway/W. Moody Avenue area.

 

Ridges:

  • Rodgers Ridge
  • Chapman Ridge

Creeks:

  • Knob Creek
  • Goose Creek
  • Baker Creek
  • Toll Creek

Floodway

43.72 acres

0.62%

Hydric Soils

75.14 acres

1.10%

Sinkholes

346.1 acres

4.90%

Slopes

0-15%

5,067 acres

71.57%

15-25%

1,368 acres

19.32%

25-40%

575 acres

8.12%

40%+

70 acres

0.99%

DEVELOPMENT LIMITATION RATING FOR SOIL RESOURCE AREAS

 

Soil Resource Areas
Residential
Industrial
Recreational
Agricultural
w/Septic
w/Sewer
Developed
Natural
1 Dewey-Decatur
Slight
Slight
Moderate
Slight
Slight
Slight
2 Huntington-Lindside-Melvin
Severe
Severe
Severe
Severe
Slight
Slight to Moderate
3 Litz-Sequoia
Severe
Slight
4 Talbott-Rock Outcrop
Severe
Severe
Severe
Severe
Severe
Severe
5 Tellico-Alcoa
Severe
Severe
Severe
Severe
Moderate
Severe
soil resources map



Demographic Changes
Existing Land Use