Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge

Stream Name: NILE CREEK Survey Date: 2017-08-23
Organization Name: Nile Creek Streamkeepers Project Name: Mod 2 on Island stre
Stream Segment #: Stream Section #:
Data entered by: ZoAnn Morten Survey ID: 72

Step 1. Benchmark Location

Directions to Benchmark: upstream of side channel at Nile Creek Enhancement hatchery

Step 2. Cross-Sectional Survey

Latitude: 49.41806 Longitude: -124.65700
Location relative to benchmark: at benchmark Photos Taken? no
Bankfull Channel Width: 11.20 Average Bankfull Depth: 21.85
Wetted Channel Width: 8.60 Average Wetted Depth: 9.56
Measurements taken every 1.00 metres Number of measurements taken: 13

First and Last Measurements Taken .1m from the streambank edge

Left Bank 0.10 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 11.10 Right Bank
Wetted Depth 11.00 13.00 12.00 13.00 9.00 13.00 9.00 3.00 3.00 Wetted Depth
Bankfull Depth 15.00 22.00 9.00 2.00 24.00 23.00 20.00 24.00 28.00 30.00 28.00 28.00 16.00 Bankfull Depth

Step 3. Stream Discharge

Cross-sectional area of wetted stream (m2)
Discharge Wetted Width: 8.600 Discharge Average Depth: 0.100 = 0.860
Average Time (sec)
35.750 44.860 32.950 39.230 27.780 180.57 36.11
Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Total Trials / 5 Average Time
Average Velocity (sec)
10.000 36.11 0.277
Length (m) Average Time (sec) Average Velocity (m/sec)
Average Stream Discharge (m3/sec)
0.860 0.277 x 0.8 0.191
Cross sectional area (m2) Average velocity (m/sec) correction factor Discharge (m3/sec)