2014 Stream Evaluation Data

by Thomas Baraldi & Simi Gbadeghesin

Christian Presley, July 16, 2014, New Hope Creek

Christian Presley, July 16, 2014, New Hope Creek


Today we analysed the visual and physical properties of New Hope Creek. The purpose of analyzing these properties is to determine the relative health of the creek. Though we did not use any advance techniques to determine a more in-depth condition, the basic analysis gives us good data to build on. Riparian buffer habitats, bethnic substrates, and in-stream habitats are all very important to the health and well-being of the creek. These factors are the independent variables of the stream. When these variables are changed, the physical qualities of the stream will also change. The dependent variables, stream flow, temperature, and turbidity, determine the health of the river. We collected the physical data by using different tools and instruments to find values for each individual category. We used a yardstick and tape measure to determine the length, width, and depth of the river. To find the turbidity of the creek, we used a turbidity tube to determine the clarity of the water.

Here is a sample of our data:

Transect  1 (upstream) Transect 2 (downstream)
Interval width (feet) Depth Interval width (feet) Depth
A to B = 12 4ft A to B=10 .75ft
B to C =12 3ft B to C= 10 1.7ft
C to D =12 2.1ft C to D= 10 .6ft
D to E=16 .4ft D to E =13.8 .6ft
Total: 51 Average Depth: 2.3 Total: 43.8 Average Depth: .91

And here is an visual assessment of the creek:

Channel Condition 8
Bank Stability 6
Nutrients 6.5
Pools 9
Riparian Zone 10
Water Appearance 7.5
Fish cover 9
Invertebrate Habitat 8
Canopy Cover 9
Overall Score 8.1

This results represent the health of the river. Based on these observations and measurements, the river appears to be in good condition.