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Determine the headwater depth (HW) of a 900 mm diameter concrete pipe culvert operating under inlet control with a streamflow of 1.95 m3/s. The culvert

Determine the headwater depth (HW) of a 900 mm diameter concrete pipe culvert operating under inlet control with a streamflow of 1.95 m3/s. The culvert is a headwall and grooved edge. If the entrance invert elevation is 137.16 m, what is the headwater elevation?
2. Determine the headwater depth of a 930 mm by 1830 mm concrete box culvert operating under inlet control with a streamflow of 2.27 m3/s. The culvert has wing walls at 45° flares. If the entrance invert elevation is 137.16 m, what is the headwater elevation?
3. Determine the headwater depth of a 915 mm by 1830 mm concrete box culvert operating under outlet control with streamflow of 2.27 m3/s. The culvert is 30.50 m long and has wing walls at 45° flares and a beveled edge at the crown. The slope of both the stream and culvert is 0.250%, and the elevation of the upstream invert is 137.16 m. Tailwater depth is 0.98 m.
4. Determine the headwater depth of a 915 mm by 1830 mm concrete box culvert operating under outlet control with streamflow of 2.27 m3/s as in problem # 3, except that the tailwater depth is below the culvert crown (TW = 0.30 m).

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