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Kent, England

Allington Lock slipway (Maidstone)

LaunchA five-metre Environment Agency slipway described as suitable for most boats, with an adjacent purpose-built low canoe and kayak launching platform. Owned and maintained by the Environment Agency; on-site facilities include free chemical-toilet disposal, a charged boat pump-out, and toilet/shower rooms, one with disabled access, free to site users.
ParkingThe Environment Agency's own car park sits beside the slipway, within a few metres of the water; charges apply, payable to the duty lock keeper.
AccessReached via Castle Road, Allington, off the A20/M20 junction 6 north of Maidstone town centre. Anyone launching must register their craft with the Environment Agency and report to the duty lock keeper on site to pay the slipway charge.
SeasonThe duty lock keeper is present 1 March to 31 October, three hours before to two hours after high water where that falls between 7am and sunset, and 1 November to the end of February the same window where it falls between 8am and 4pm; 24 hours' notice is required outside those times. The Environment Agency's on-site campsite operates 1 March to 31 October. The navigation team publishes a Notice to Mariners feed and strong-stream advice covering this reach.
RegulationsAll craft, including unpowered open boats such as canoes, kayaks and paddleboards, must be registered with the Environment Agency to be used on the Upper Medway Navigation between Allington Lock and the Leigh Barrier at Tonbridge; third-party liability insurance is required for enclosed unpowered craft and strongly recommended for open ones, and Paddle UK members are covered under their membership. The navigation is governed by byelaws made under the Upper Medway Navigation and Conservancy Act 1911, which require craft to be navigated with care and caution, and the speed limit is 5 knots. Canoe passes or portage platforms are provided at the locks upstream; Allington itself must be worked by the keeper rather than the boater.

Allington Lock stands at the tidal limit of the River Medway on the northern edge of Maidstone, where the Environment Agency's Upper Medway Navigation ends and the tidal Medway Estuary begins. Upstream, the non-tidal river runs some 29 kilometres through Maidstone and Yalding to Tonbridge, and Allington is the only lock on that stretch worked by a keeper rather than by the boater.

The lock is paired with the Allington Sluice, the last such structure on the Medway before the river turns tidal; together they hold the level of the reach above and mark the boundary between the non-tidal Medway and the estuary below. A small island between the lock and the sluice carries the Little Old Toll House, a café reached on foot only, and the Museum of Kent Life stands on the far side of the sluice. Allington Castle is visible across the water, largely screened by trees on the opposite bank.

Downstream of the lock, the river becomes the tidal Medway Estuary, part of a Ramsar site, Special Protection Area and Site of Special Scientific Interest reflecting the wider estuary's nationally important wintering and breeding bird populations. The Environment Agency's navigation rules ask paddlers not to land on the river's gravel shoals and islands between 1 April and 31 July, to avoid disturbing nesting birds, wintering wildlife and spawning fish.

Nearby

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The Little Old Toll House

A small outdoor-only coffee kiosk on the island between the lock and the sluice, with no indoor seating.

Website
Allington Lock Camping and Cabins

An Environment Agency site with eight non-electric grass tent pitches and two cabins, open to the general public (not to groups of 10 or more); one car space is included per pitch or cabin. Open 1 March to 31 October. No OSM element could be found for it; postal address Allington Lock, Castle Road, Allington, Maidstone, ME16 0LU.

Website

Conditions to check

Lock

Allington Lock is a staffed lock at the downstream end of the Upper Medway Navigation; it is the only lock on the navigation that the public may not operate themselves.

Source
Weir

The Allington Sluice, built in 1937, stands next to the lock and is the last such structure on the Medway before the river becomes tidal.

Tidal flow

Downstream of Allington Lock the river is tidal, and the Environment Agency notes that at times the river below the lock may run dry.

Source
Boat traffic

The reach immediately upstream toward Maidstone is used by rowing crews from Maidstone Invicta Rowing Club alongside powered leisure craft.

Source
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