Eynsham Lock is a
lock on the
River Thames
The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the ...
in England. It is on the southern bank near
Swinford
Swinford () is a town in County Mayo, Ireland. It is surrounded by a number of smaller villages, including Midfield and Meelick. It is just off the N5 road, located 18 km (11 mi) from Ireland West Airport Knock (formerly known as ...
Oxfordshire. The large village of
Eynsham is a little distance away on the northern bank.
The lock was one of the last pound locks built on the Thames being built by the
Thames Conservancy
The Thames Conservancy (formally the Conservators of the River Thames) was a body responsible for the management of the that river in England. It was founded in 1857 to replace the jurisdiction of the City of London up to Staines. Nine years la ...
in 1928.
The weir is on the other side of the island on the original course of the river.
History
There was previously a weir and
flash lock
A flash lock is a type of lock for river or canal transport.
Early locks were designed with a single gate, known as a flash lock or staunch lock. The earliest European references to what were clearly flash locks were in Roman times.
Develop ...
known as Eynsham or Bolde's weir, originally owned by
Eynsham Abbey. The weir was rebuilt in 1886 after there had been some proposals for removing it and around 1890 a boatslide was built for the portage of small boats.
[Fred. S. Thacker ''The Thames Highway: Volume II Locks and Weirs'' 1920 - republished 1968 David & Charles] It was replaced by the pound lock in 1928 which was cut across the neck of a bend. The weir was reconstructed in 1950.
Access to the lock
The lock is close to the
B4044 road where it crosses the river at
Swinford Toll Bridge and is accessible on foot.
There is a permissive path across the lock and weir.
Reach above the lock

A short distance upstream of the lock is Swinford Toll Bridge. After the bridge there used to be a very sharp horseshoe bend which gave problems to navigation until a cut was built across it in 1900. The river continues to head south west through predominantly open country. The only interruption is a large marina on the eastern bank.
The
Thames Path
The Thames Path is a National Trail following the River Thames from its source near Kemble in Gloucestershire to the Woolwich foot tunnel, south east London. It is about long. A path was first proposed in 1948 but it only opened in 1996.
The ...
follows the southern bank to Pinkhill Lock.
See also
*
Locks on the River Thames
The English River Thames is navigable from Cricklade (for very small, shallow boats) or Lechlade (for larger boats) to the sea, and this part of the river falls 71 meters (234 feet). There are 45 locks on the river, each with one or mor ...
External links
Eynsham Lockillustrated feature at Eynsham Online
A History of The River Thames at Eynshamextract from The Eynsham Record
archived from eynsham.org
References
{{coord, 51.77432, -1.35790, type:landmark_region:GB_source:enwiki-osgb36(SP444086), display=title
Locks on the River Thames
Locks of Oxfordshire