A culvert is not the stuff of travel posters, but on the eastern edge of Utrecht it tells you exactly how this country works. The spot lies near the stream called Minstroom, less than two kilometres from the middle of Utrecht and next to the university district of De Uithof. Here water is steered, held back, sent under roads and, when the army needed it, spread across the fields on purpose.
That last part is the point. East of the city runs a chain of forts and sluices that belonged to the New Dutch Waterline, the old defensive system built to flood a broad belt of land so that an enemy would find it too wet to march across and too shallow to cross by boat. A culvert or small bridge like this was part of the plumbing: open the right gates and the water went where the planners wanted. The line is now listed among the UNESCO Dutch Water Defence Lines, and the whole idea of defending a country with a plug and a polder is wonderfully Dutch.
On a motorcycle you come at this from the city, which means low speed limits, bike lanes on both sides, traffic lights and streams of students on bicycles. It is not a place for corner carving. What it offers is a short, easy contrast: five minutes from the Dom Tower and the canal wharves you are among hedgerows, horse paddocks, the wooded Amelisweerd estate and a slow stream with herons standing in it. Mind the cyclists at junctions, since in the Netherlands they have right of way far more often than visitors expect, and parking a motorcycle on a pavement in a residential street can earn a fine.
Utrecht is a proper city, so fuel, food and coffee are all easy; you will find petrol stations on the ring roads and plenty of cafés along the Oudegracht, the old canal with wharf cellars below street level. De Uithof itself is a campus with canteens that feel a little institutional but are cheap and quick. Morning is the best time, before the commuters, and late summer evenings give a soft light on the water.
If you are hungry for more forts, the nearby Fort Vossegat and its neighbours are only minutes away on a bike or a quiet lane.