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IJssel · km 994.495
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Gauge Kampen is on the IJssel at kilometre 994.495, on the km 994–1005 stretch. The OLR is -35 cm and the fairway depth maintained below it (TuOLR) is 337 cm; after deducting 30 cm of safety margin the official rule of thumb comes out at Kampen +342. In practice Kampen +342 is used here. This gauge has one forecast source: the 5-day forecast from Rijkswaterstaat RWsOS (red). Upstream lies Zwolle, IJssel (Katerveer).
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