Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge
| Stream Name: ALEXANDER CREEK | Survey Date: 2013-10-30 |
| Organization Name: Elk River Alliance | Project Name: |
| Stream Segment #: | Stream Section #: |
| Data entered by: Ayla Bennett | Survey ID: 42 |
Step 1. Benchmark Location
| Directions to Benchmark: ~100 m upstream of Alexander Creek mouth (flows into Michel Creek) |
Step 2. Cross-Sectional Survey
| Latitude: | Longitude: |
| Location relative to benchmark: at benchmark | Photos Taken? yes |
| Bankfull Channel Width: 14.20 | Average Bankfull Depth: 0.40 |
| Wetted Channel Width: 12.30 | Average Wetted Depth: 0.22 |
| Measurements taken every 1.00 metres | Number of measurements taken: 15 |
First and Last Measurements Taken .1m from the streambank edge
| Left Bank | 0.10 | 1.00 | 1.70 | 2.00 | 3.00 | 4.00 | 5.00 | 6.00 | 7.00 | 8.00 | 9.00 | 10.00 | 11.00 | 12.00 | 13.00 | Right Bank | Wetted Depth | 0.10 | 0.15 | 0.02 | 0.16 | 0.24 | 0.19 | 0.24 | 0.12 | 0.24 | 0.18 | 0.47 | 0.50 | 0.28 | Wetted Depth |
| Bankfull Depth | 0.04 | 0.15 | 0.32 | 0.37 | 0.24 | 0.38 | 0.46 | 0.41 | 0.46 | 0.34 | 0.46 | 0.40 | 0.69 | 0.72 | 0.50 | Bankfull Depth |
Step 3. Stream Discharge
| Cross-sectional area of wetted stream (m2) | Discharge Wetted Width: 12.300 | Discharge Average Depth: 0.210 | = 2.583 | ||||
| Average Time (sec) | |||||||
| 27.600 | 11.460 | 9.750 | 11.720 | 18.600 | 79.13 | 15.83 | |
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Total Trials | / 5 | Average Time |
| Average Velocity (sec) | |||||||
| 10.000 | 15.83 | 0.632 | |||||
| Length (m) | Average Time (sec) | Average Velocity (m/sec) | |||||
| Average Stream Discharge (m3/sec) | |||||||
| 2.583 | 0.632 | x 0.8 | 1.306 | ||||
| Cross sectional area (m2) | Average velocity (m/sec) | correction factor | Discharge (m3/sec) | ||||