Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge
| Stream Name: BOWKER CREEK | Survey Date: 2020-09-06 |
| Organization Name: Friends of Bowker Creek | Project Name: Bowker Creek Salmon |
| Stream Segment #: | Stream Section #: 3.4 |
| Data entered by: Stormy Kirkland | Survey ID: 102 |
Step 1. Benchmark Location
| Directions to Benchmark: 41.15m downstream from upper end of section 3.4. Marked by silver discs nailed into stone wall on both banks. Also 24.7m above dam at low end of section 3.4 |
Step 2. Cross-Sectional Survey
| Latitude: | Longitude: |
| Location relative to benchmark: at benchmark | Photos Taken? yes |
| Bankfull Channel Width: 6.50 | Average Bankfull Depth: 1.29 |
| Wetted Channel Width: 5.30 | Average Wetted Depth: 0.18 |
| Measurements taken every 1.00 metres | Number of measurements taken: 9 |
First and Last Measurements Taken .1m from the streambank edge
| Left Bank | 0.10 | 6.40 | 6.10 | 5.10 | 4.10 | 3.10 | 2.10 | 1.10 | 0.10 | Right Bank | Wetted Depth | 0.19 | 0.36 | 0.43 | 0.28 | 0.13 | 0.04 | 0.00 | 0.00 | Wetted Depth |
| Bankfull Depth | 1.29 | 1.46 | 1.53 | 1.23 | 1.14 | 1.10 | Bankfull Depth |
Step 3. Stream Discharge
| Cross-sectional area of wetted stream (m2) | Discharge Wetted Width: 5.300 | Discharge Average Depth: 0.240 | = 1.272 | ||||
| Average Time (sec) | |||||||
| 143.000 | 148.000 | 175.000 | 112.000 | 114.000 | 692 | 138.40 | |
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Total Trials | / 5 | Average Time |
| Average Velocity (sec) | |||||||
| 3.000 | 138.40 | 0.022 | |||||
| Length (m) | Average Time (sec) | Average Velocity (m/sec) | |||||
| Average Stream Discharge (m3/sec) | |||||||
| 1.272 | 0.022 | x 0.8 | 0.022 | ||||
| Cross sectional area (m2) | Average velocity (m/sec) | correction factor | Discharge (m3/sec) | ||||