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IJssel · km 929.3
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Gauge Zutphen is on the IJssel at kilometre 929.3, on the km 930–931 stretch. The OLR is 262 cm and the fairway depth maintained below it (TuOLR) is 250 cm; after deducting 30 cm of safety margin the official rule of thumb comes out at Zutphen -42. In practice Zutphen -20 is used here, +22 cm against the official rule. This gauge has one forecast source: the 5-day forecast from Rijkswaterstaat RWsOS (red). Upstream lies Doesburg, downstream Deventer.
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