PHYSICAL ASSESSMENT 1 by Tim Schutz, Emily Bierman, and Justin Witherspoon.
Transect #1 (upstream)  Interval Width (feet)  Depth (feet) 
A to B/ At B  11  .607 
B to C/ At C  11  2.5 
C to D/ At D  11  1.833 
D to E/ At E  11  1.416 
Totals  44  6.356 
Avg.  11  1.589 
Total width (ft) X Avg. depth (ft) = avg crosssectional area
44  X  1.589  =  69.916 
Transect #2 (downstream)  Interval Width (feet)  Depth (feet) 
A to B/ At B  10.5  3.25 
B to C/ At C  10.5  3.67 
C to D/ At D  10.5  3.73 
D to E/ At E  10.5  3.75 
Totals  42  14.40 
Avg.  10.5  3.604 
Total width (ft) X Avg. depth (ft) = avg crosssectional area
42  X  3.604  =  151.368 
Crosssectional area of Transect #1 +Crosssectional area of Transect #2 ÷2 = Avg. Crosssectional area
(69.916+151.368)/2= 110.642 Sq. Ft.
L: Length of Stream Reach

C: Coefficient

Flow = ALC/T = (110.642 x 20 x .9)/300 = 6.639
PHYSICAL ASSESSMENT 2 by Ransom Pate & Katie ReiterLavery
New Hope Creek 7/24/12 9:45 AM
Weather (past 24 hours): storm with heavy rain
Weather (at time of recording): clear and sunny
Water Temperature: 78°F
Turbidity Readings: 10 cm, 20 cm, 40 cm; Average = 23.33 cm. The differences in readings can be explained by disturbed sediments in the water when it was collected in the tube.
Water Odors: Normal
Water Color/Appearance: Brown/Muddy
Algae Growth: Minimal
Professionally Drawn Diagram of Setup (not to scale)
Flow Data: Time for objects to travel downstream
Trial 1 
Trial 2 
Trial 3 
Average 

Time (sec) 
300 
N/A 
N/A 
300 
Distance and Calculations of stream flow
Interval 1 
Interval 2 

Width (ft) 
Depth (ft) 
Width (ft) 
Depth (ft) 

Point A to B 
11 
0.667 
10.5 
3.250 

B to C 
11 
2.500 
10.5 
3.667 

C to D 
11 
1.833 
10.5 
3.250 

D to E 
11 
1.500 
10.5 
3.750 

Sum 
44 
6.500 
42 
13.917 

Average Depth (ft) 
1.625 
3.479 

Area (ft^{2}) 
Width*Average Depth 
(Area1) 71.500 
(Area2) 146.125 

Average Area (ft^{2}) 
Area1+Area2/2 
108.8125 

Length of Stream Reach (ft) 
Measured 
20 

Coefficient 
0.8 

Flow (ft^{3}/sec) 
5.803 
The coefficient was given for rockybottom streams in the preobservation materials.
Measurements were taken to determine turbidity (how clear water is), water temperatures and the stream flow. To find the turbidity a transparency tube was used, which was filled with water that was let out until the bottom could be seen. Water temperature was taken using a thermometer held at least 4 inches under water for one minute and read through the water. Stream flow was calculated by measuring across two sections of the stream. The depth of the water was measured at four different points and the average of each section was calculated and the average of the two sections was then calculated. Those calculations provided the volume of water flowing across a given point in the stream. Objects were sent to float down the river, which provided the surface flow. We only had time for one trial for objects in the stream. If more time had been provided, the calculation would have been more accurate. To find the total flow, the average area was multiplied by the length and coefficient and divided by the average time.
PHYSICAL ASSESSMENT 3 by Charlie Brereton & Emma Brereton
Below is data concluded from measurements taken at New Hope Creek on the first day of ESSP.
7/24/2012, 9:45 AM
Interval Width Section  Interval One  
Width (ft.)  Depth (ft.)  
A to B  14.4  3.16 
B to C  9  3.5 
C to D  7  206 
D to E  12  1.91 
Total  42.4  11.17 
Cross Sectional Area (ft^2): 118.29
Interval Width Section  Interval Two  
Width (ft.)  Depth (ft.)  
A to B  12  5.08 
B to C  7  1.16 
C to D  8  1 
D to E  22  0.875 
Total  49  8.115 
Cross Sectional Area (ft^2)  99.47 
Cross Sectional Area = Total width (ft.) x average depth (ft.)
Average Cross Sectional Area (ft^2)  217.76 
Average Cross Sectional Area = cross section area (interval one) + cross section area (interval two) / 2
Travel Time (sec)  
Trial 1  254.4 
Trial 2  210 
Total  464.4 
Average  154.8 
(217.76)(20)(0.85) / 154.8 = 23.914 (ft^3 / sec.)
The above calculation consists of four parts: the length of the stream reach (20 ft.), the average travel time (154.8 sec.), a coefficient (0.85) and the average cross sectional area (217.76 ft^2).
Turbidity Measurements  
Trial 1  66 
Trial 2  56 
Trial 3  35.5 
Average  52.5 
Water Temperature Readings (°F)  
Trial 1  79 
Trial 2  77 
Trial 3  77.9 
Average  77.96 