Module 2 Bechmark Location, Cross-sectional Survey, Stream Discharge

Stream Name: MOFFAT CREEK Survey Date: 2024-07-18
Organization Name: Horsefly River Roundtable Project Name: Streamkeepers Traini
Stream Segment #: Stream Section #:
Data entered by: ZoAnn Morten Survey ID: 120

Step 1. Benchmark Location

Directions to Benchmark: 26.5 m downstream of the girder on downstream end of the WoodJam/Horsefly bridge

Step 2. Cross-Sectional Survey

Latitude: 52.31579 Longitude: -121.40826
Location relative to benchmark: at benchmark Photos Taken? yes
Bankfull Channel Width: 12.80 Average Bankfull Depth: 38.73
Wetted Channel Width: 9.60 Average Wetted Depth: 22.93
Measurements taken every 0.00 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 10.00 11.00 12.00 12.90 0.00 Right Bank
Wetted Depth 0.00 31.00 39.00 41.00 43.00 49.00 43.00 29.00 32.00 32.00 5.00 0.00 0.00 0.00 0.00 Wetted Depth
Bankfull Depth 3.00 50.00 55.00 58.00 62.00 67.00 58.00 47.00 51.00 52.00 30.00 29.00 16.00 3.00 0.00 Bankfull Depth

Step 3. Stream Discharge

Cross-sectional area of wetted stream (m2)
Discharge Wetted Width: 9.600 Discharge Average Depth: 0.340 = 3.264
Average Time (sec)
27.800 29.100 21.900 27.300 73.000 179.1 35.82
Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Total Trials / 5 Average Time
Average Velocity (sec)
10.000 35.82 0.279
Length (m) Average Time (sec) Average Velocity (m/sec)
Average Stream Discharge (m3/sec)
3.26400 0.27917 x 0.8 0.07290
Cross sectional area (m2) Average velocity (m/sec) correction factor Discharge (m3/sec)