Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge
| Stream Name: THAIN CREEK | Survey Date: 2023-07-29 |
| Organization Name: North Shore Streamkeepers | Project Name: |
| Stream Segment #: | Stream Section #: |
| Data entered by: ZoAnn Morten | Survey ID: 114 |
Step 1. Benchmark Location
| Directions to Benchmark: walked in from corner of 17th st and Wolfe street down the stairs - headed south on path went to area that many people go up and down. Tires in stream, concrete blocks in stream wide open area (might consider planting here) |
Step 2. Cross-Sectional Survey
| Latitude: 49.19220 | Longitude: -123.51800 |
| Location relative to benchmark: @ | Photos Taken? yes |
| Bankfull Channel Width: 3.80 | Average Bankfull Depth: 18.53 |
| Wetted Channel Width: 3.20 | Average Wetted Depth: 5.67 |
| Measurements taken every 0.50 metres | Number of measurements taken: 15 |
First and Last Measurements Taken .1m from the streambank edge
| Left Bank | 0.10 | 0.50 | 1.00 | 1.50 | 2.00 | 2.50 | 3.00 | 3.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | Right Bank | Wetted Depth | 0.00 | 15.00 | 21.00 | 16.00 | 22.00 | 9.00 | 2.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | Wetted Depth |
| Bankfull Depth | 15.00 | 31.00 | 40.00 | 34.00 | 45.00 | 34.00 | 32.00 | 32.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | Bankfull Depth |
Step 3. Stream Discharge
| Cross-sectional area of wetted stream (m2) | Discharge Wetted Width: 3.200 | Discharge Average Depth: 0.140 | = 0.448 | ||||
| Average Time (sec) | |||||||
| 68.000 | 47.000 | 60.000 | 51.000 | 56.000 | 282 | 56.40 | |
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Total Trials | / 5 | Average Time |
| Average Velocity (sec) | |||||||
| 5.500 | 56.40 | 0.098 | |||||
| Length (m) | Average Time (sec) | Average Velocity (m/sec) | |||||
| Average Stream Discharge (m3/sec) | |||||||
| 0.448 | 0.098 | x 0.8 | 0.035 | ||||
| Cross sectional area (m2) | Average velocity (m/sec) | correction factor | Discharge (m3/sec) | ||||