A corrugated pipe culvert is laid through a highway embankment, with the pipe in

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A corrugated pipe culvert is laid through a highway embankment, with the pipe inlet flush with the headwall and pipe outlet projecting into the tailwater pool. The culvert is 76-cm in diameter, 30 meter long, and is on a hydraulically steep slope. The Manning coefficient is 0.025 and the design discharge is 1.2 m^3/s. Compute the head on the culvert, measured above the inlet center line, when: a) The outlet is submerged, with the tailwater elevation at the same level as the inlet center line. (50%) b) The outlet is free and the culvert lowing part-full. (50%)

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