Roman Cumbria to Wallsend on the Tyne estuary, with additional military installations running down the Cumbrian coast from Bowness to Risehow, south of Maryport, in an integrated fashion (and with forts at Burrow Walls and Moresby that were perhaps not part of the system). Historians believe that the Turf Wall from the River Irthing to Bowness-on Solway was rebuilt in stone in two stages. The most easterly five miles were rebuilt at the time of Hadrian, with the remainder being rebuilt after 150 AD. However, this is open to dispute: it is uncertain whether the building works in the second half of
Solway Firth Eden and the River Esk. The following rivers also flow into the firth: The name 'Solway' (recorded as "Sulewad" in 1218) is of Scandinavian origin, and was originally the name of a ford across the mud flats at Eskmouth. The second element of the name is Old Scandinavian "vað" 'ford' (cognate with English "wade"). The first element is probably Old Scandinavian "súl" 'pillar', referring to the Lochmaben Stane, though "súla" 'solan goose' is also possible. "Súl and súla" both have long vowels, but the early spellings of Solway indicate a short vowel in the first element. This may be due