Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge
| Stream Name: REAY CREEK | Survey Date: 2016-05-03 |
| Organization Name: Peninsula Streams Society | Project Name: Reay Creek Survey |
| Stream Segment #: 1 | Stream Section #: 1 |
| Data entered by: Brian Koval | Survey ID: 54 |
Step 1. Benchmark Location
| Directions to Benchmark: 2020 Frost Avenue. Walk down into Reay Creek Park and take a left at the gate. The benchmark is marked with orange tags on either side of the stream. |
Step 2. Cross-Sectional Survey
| Latitude: 48.63830 | Longitude: -123.41500 |
| Location relative to benchmark: At benchmark | Photos Taken? yes |
| Bankfull Channel Width: 3.61 | Average Bankfull Depth: 45.00 |
| Wetted Channel Width: 2.70 | Average Wetted Depth: 6.71 |
| Measurements taken every 0.50 metres | Number of measurements taken: 10 |
First and Last Measurements Taken .1m from the streambank edge
| Left Bank | 0.10 | 0.50 | 0.90 | 1.00 | 1.50 | 2.00 | 2.50 | 3.00 | 3.35 | 3.51 | Right Bank | Wetted Depth | 2.00 | 5.00 | 11.00 | 11.00 | 11.00 | 5.00 | 2.00 | Wetted Depth |
| Bankfull Depth | 31.00 | 31.00 | 34.00 | 38.00 | 45.00 | 48.00 | 50.00 | 48.00 | 49.00 | 45.00 | Bankfull Depth |
Step 3. Stream Discharge
| Cross-sectional area of wetted stream (m2) | Discharge Wetted Width: 1.800 | Discharge Average Depth: 0.670 | = 1.206 | ||||
| Average Time (sec) | |||||||
| 31.500 | 26.600 | 32.600 | 34.000 | 24.600 | 149.3 | 29.86 | |
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Total Trials | / 5 | Average Time |
| Average Velocity (sec) | |||||||
| 2.200 | 29.86 | 0.074 | |||||
| Length (m) | Average Time (sec) | Average Velocity (m/sec) | |||||
| Average Stream Discharge (m3/sec) | |||||||
| 1.206 | 0.074 | x 0.8 | 0.071 | ||||
| Cross sectional area (m2) | Average velocity (m/sec) | correction factor | Discharge (m3/sec) | ||||