The River Waveney is a river which forms the boundary between Suffolk and Norfolk, England, for much of its length within The Broads. The earliest attestation of the name is from 1275, Wahenhe, from *wagen + ea, meaning the river by a quagmire.A.D. Mills, Oxford Dictionary of British Place Names, 2003, p.486

Course Redgrave and Lopham Fens, located between the villages of Redgrave, Suffolk and South Lopham, Norfolk is the largest area of spring-fed valley fen in lowland England. It covers an area of and is a National nature reserve. The source of the River Waveney is a ditch on the east side of the B1113 road within the fens. The ditch on the other side of the road is the source of the River Little Ouse that continues the county boundary and, via the Great Ouse, reaches the sea at King's Lynn. It is thus claimed that during periods of heavy rainfall Norfolk can be considered to be an island. The explanation of this oddity is that the valley where the rivers rise was formed not by these rivers, but by water spilling from the periglacial lake known as Lake Fenland. This was a periglacial lake of the Devensian glacial period, fifteen or twenty thousand years ago. The ice sheet closed the natural drainage from the Vale of Pickering, the Humber and The Wash so that a lake of a complex shape formed in the Vale of Pickering, the Yorkshire Ouse valley, the lower Trent valley and the Fenland basin. This valley was its spillway into the southern North Sea basin, thence to the English Channel basin.

The river rises close to the contour,Ordnance Survey 2006, 1:25,000 map, Sheet 230 and flows in an easterly direction though the towns of Diss, Bungay and Beccles. From its source it forms the southern boundary of Bressingham and Roydon before it reaches Diss. At Scole it is crossed by the course of a Roman road, with the modern A140 bypass just to the east. There is a weir at Billingford and Billingford Windmill is situated a little to the north of the river. Beyond Billingford Bridge the River Dove, flowing northwards from Eye, joins on the southern bank, the Mid Suffolk Footpath crosses and the river drops below the contour at another weir. It turns to the north-east to reach Brockdish and Needham before passing to the south of Harleston. There are several lakes on the south bank, the largest covering , which were once Weybread Gravel Pits, but are now used for fishing.

Below the lakes are the remains of St Mary's Priory, Mendham, a Cluniac priory and the extensive drained area of Mendham Marshes. Mendham, which is the birthplace of the artist Alfred Munnings, lies on the Suffolk bank, Wortwell is in Norfolk, and Homersfield is again in Suffolk. In 1869, Homersfield Bridge, one of the first bridges to be constructed from concrete and iron was built across the river here. It was commissioned by Sir Shafto Adair, had a span of and predated the introduction of true reinforced concrete by several years. It is now the oldest concrete bridge in England and is a Grade II* listed structure. Road traffic was diverted onto a new bridge in 1970 and the former structure was acquired by Norfolk County Council in 1994. They passed it on to the Norfolk Historic Buildings Trust, which managed its restoration in 1995, which was funded by grants from English Heritage, Blue Circle Industries and councils at county, district and local level. Opposite Homersfield, on the Norfolk side of the river lie the parishes of Alburgh, Denton and Earsham. Next on the Suffolk bank is Flixton the site of a World War II USAF bomber base and the Norfolk and Suffolk Aviation Museum. At Earsham the Otter Trust had one of its three UK centres, which opened in 1978 and closed in 2006, having successfully boosted otter numbers on the river.

At Bungay, the historic head of navigation, the Waveney forms a wide oxbow meander, carrying with it the Norfolk/Suffolk border. Within this loop lies the long-established Bungay and Waveney Valley golf course. Next, on the Norfolk bank, come Ditchingham, Broome and Ellingham before Geldeston, where an isolated pub stands next to the site of a lock, now replaced by a sluice. This is the current limit of navigation for craft larger than a rowing or paddling boat and at this point the Waveney becomes a tidal river. A short way further along is a dyke that leads to the village.Ordnance Survey 2011, 1:25,000 map, Sheet OL40 On the Suffolk side are found the parishes of Mettingham. Shipmeadow and Barsham. On the Norfolk side Gillingham comes next before the river gathers waters at Beccles, as it enters the Broads. Although the old town bridge here restricts navigation to craft with an air draft of less than , its quay beyond that abruptly changes the nature of the river from a gentle rural feature to a gateway to the North Sea. Beccles was a fishing port for many years and the parents of Lord Nelson were married in the church of St Michael. The river then meanders past Barnby Broad and Marshes SSSI and Burgh St Peter to Somerleyton. Here Oulton Dyke branches off the Waveney to Oulton Broad towards Lowestoft. A sea lock, known as Mutford Lock, divides fresh from seawater and links Oulton Broad with Lake Lothing and the North Sea. This lock is operated by Sentinel Enterprises Limited and will allow traffic to pass through.

At Somerleyton the Lowestoft to Norwich railway line crosses the Waveney on a swing bridge, while at St Olaves, the Haddiscoe Cut branches off left to connect the Rivers Yare and Waveney. The Cut was excavated in the 19th century to provide a direct route between Lowestoft Docks and Norwich. Finally the Waveney flows past Burgh Castle into Breydon Water at the confluence of the two rivers. The river Yare continues through Breydon Water to reach the sea at Great Yarmouth.

There was a special version of the Norfolk wherry in use on the Waveney, with boats measuring no more than . There were also steam wherries.

Daniel Defoe enlivens this account of the Waveney's Broads course:The River Waveney is a considerable river, and of a deep and full channel, navigable for large barges as high as Beccles; it runs for a course of about fifty miles, between the two counties of Suffolk and Norfolk, as a boundary to both; and pushing on, tho' with a gentle stream, towards the sea, no one would doubt, but, that when they see the river growing broader and deeper, and going directly towards the sea, even to the edge of the beach; that is to say, within a mile of the main ocean; no stranger, I say, but would expect to see its entrance into the sea at that place, and a noble harbour for ships at the mouth of it; when on a sudden, the land rising high by the sea-side, crosses the head of the river, like a dam, checks the whole course of it, and it returns, bending its course west, for two miles, or thereabouts; and then turning north, thro' another long course of meadows (joining to those just now mention'd) seeks out the River Yare, that it may join its water with hers, and find their way to the sea together.

Navigation

The River Waverney was improved for navigation under an act of Parliament, the Rivers Brandon and Waveney Navigation Act 1670 (22 Cha. 2. c. 16 ), obtained in 1670, which empowered five traders from Bungay and one from Downham Market to carry out the work. This included the construction of three locks, at Geldeston, Ellingham and Wainford, to extend navigation as far as Bungay Staithe. The navigation remained in private hands, and was not under the control of the Yarmouth Commissioners, who were responsible for the lower river. A second act of Parliament, the Great Yarmouth (Improvement) Act 1772 (12 Geo. 3. c. 14), ensured that Suffolk magistrates received a 5 per cent share of all tolls obtained from the carriage of coal, with which to maintain the Waveney. Ownership was in the hands of a merchant from Bungay at the end of the eighteenth century, and was later bought by William Butcher. When St Olave's bridge needed to be rebuilt in 1847, he explained that although he owned it, he had let out the collection of tolls, and such matters were dealt with by the judges at Bury St Edmunds Assizes. In 1848, he attempted to set up the Bungay Navigation Tontine Co., which would buy the rights to levy tolls and trade on the river, using a tontine, but the scheme failed to attract sufficient investors to become viable. In 1889 ownership was transferred to W. D. Walker of Bungay, a merchant and maltster. The firm was the first owner of a wherry called Albion, now owned by the Norfolk Wherry Trust. From 1919 to 1934, Watney, Combe, Reid and Co. controlled the navigation.

The short section of the river from Haddiscoe to Burgh Ferry was part of a grand scheme to link Norwich to the sea at Lowestoft. The scheme originated in 1818, but was opposed by the merchants of Yarmouth and it was not until 28 May 1827 that Norwich and Lowestoft Navigation Act 1827 (7 & 8 Geo. 4. c. xlii) authorised the Norwich and Lowestoft Navigation Company, giving then powers to raise £100,000, with an additional £50,000 if required. From Burgh Ferry, boats would use a widened Oulton Dyke to reach Oulton Broad and a new sea lock would be constructed to link the broad to Lake Lothing. This had four sets of gates, so that it could be used at all states of the tide, was capable of holding vessels which were and used a system of sluices to enable the channel through Lake Lothing to be flushed with water from Oulton Broad. Completed in 1829, it was demonstrated in 1831 and although four operations of the sluices were estimated to have removed 10,000 tons of gravel and shingle out to sea, its subsequent operation was not as effective.

In the other direction, construction of Haddiscoe Cut began, to link the river at Haddiscoe to the River Yare at Reedham, enabling vessels from Norwich to bypass Yarmouth. With funds running low, a decision was taken to borrow the additional £50,000 which the enabling act allowed and so a request was made to the Exchequer Bill Loan Commission for this amount. Work was completed on the cut and the upgrading of the river to Norwich and the formal opening took place on 30 September 1833. The venture was a commercial failure, as development of Norwich as a port did not occur and Lowestoft harbour was subject to silting. With income failing to match expenditure, the Exchequer Bill Loan Commission could not be repaid, so they took over the navigation in 1842 and sold it to the railway contractor Sir Samuel Morton Peto.

With the decline in the use of wherries for commercial trade on the rivers prior to the Second World War, navigation ceased on several stretches of the Broads, including the section of the river from Geldeston Lock to Bungay, where navigation rights were removed by the (SR&O 1934/673). Geldeston Lock, which is also known as Shipmeadow Lock, gradually deteriorated, and in 2013 it was restored in a joint project by the River Waveney Trust and the Inland Waterways Association. During the restoration work, a carved stone showing that the lock was previously restored in 1910 was found, as was a gold wedding ring. Wainford and Ellingham locks have since been converted into sluices, but the Environment Agency has negotiated with local landowners to allow the use of this section by canoes and unpowered craft. To aid this, it has improved the facilities for portaging boats at the locks.