Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge
| Stream Name: ROBERTS CREEK | Survey Date: 2022-06-28 |
| Organization Name: Sunshine Coast Streamkeepers | Project Name: |
| Stream Segment #: 1 | Stream Section #: 1 |
| Data entered by: ZoAnn | Survey ID: 105 |
Step 1. Benchmark Location
| Directions to Benchmark: 3m upstream of last building at 3093 Lower Road 58.6m below bridge 1/2 way large maple / alder |
Step 2. Cross-Sectional Survey
| Latitude: 49.42033 | Longitude: -123.64042 |
| Location relative to benchmark: @ | Photos Taken? no |
| Bankfull Channel Width: 9.56 | Average Bankfull Depth: 28.40 |
| Wetted Channel Width: 7.35 | Average Wetted Depth: 8.07 |
| 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 | 2.00 | 3.00 | 4.00 | 5.00 | 6.00 | 7.00 | 8.00 | 9.00 | 9.46 | 0.00 | 0.00 | 0.00 | 0.00 | Right Bank | Wetted Depth | 0.00 | 0.00 | 0.00 | 12.00 | 14.00 | 5.00 | 23.00 | 21.00 | 24.00 | 21.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | Wetted Depth |
| Bankfull Depth | 39.00 | 41.00 | 28.00 | 37.00 | 35.00 | 25.00 | 45.00 | 38.00 | 40.00 | 38.00 | 21.00 | 0.00 | 0.00 | 0.00 | 0.00 | Bankfull Depth |
Step 3. Stream Discharge
| Cross-sectional area of wetted stream (m2) | Discharge Wetted Width: 7.350 | Discharge Average Depth: 0.150 | = 1.103 | ||||
| Average Time (sec) | |||||||
| 21.650 | 34.840 | 44.820 | 19.500 | 65.970 | 186.78 | 37.36 | |
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Total Trials | / 5 | Average Time |
| Average Velocity (sec) | |||||||
| 10.000 | 37.36 | 0.268 | |||||
| Length (m) | Average Time (sec) | Average Velocity (m/sec) | |||||
| Average Stream Discharge (m3/sec) | |||||||
| 1.103 | 0.268 | x 0.8 | 0.236 | ||||
| Cross sectional area (m2) | Average velocity (m/sec) | correction factor | Discharge (m3/sec) | ||||