Tag Archives: passage

The figures for Shannon lock passages to the end of June 2013 are now available. The decline continues, though perhaps more slowly.

Shannon lock and bridge passages January to June as percentages of the 2003 number

The usual caveats apply: the underlying figures (kindly supplied by Waterways Ireland) do not record total waterways usage because, for instance, sailing, fishing or waterskiing on lakes or river stretches, which did not involve a passage through a lock or Portumna Bridge, would not be recorded. The passage records are our only consistent long-term indicator of usage of the Shannon but they would not show, for instance, a change in the balance of types of activities from those in larger cruising boats to those in smaller (sailing, fishing, waterskiing) boats. It is quite possible, therefore, that overall usage might be increasing while long-distance cruising was declining.

Shannon lock and bridge passages by private boats January to June

As it happens, the figures show a small increase over 2012 in passages by private boats. I suspect that July’s warm weather will spur a further increase.

Folk living in Ireland, whether owners or prospective hirers, are likely to be able to react quickly to better (or worse) weather by doing more (or less) boating; folk living abroad may be less able to change their holiday plans. Accordingly, July’s weather might (I’m speculating here) mean an increase in passages by private boats and by boats hired by Irish residents; it might not lead to an increase in hiring from abroad.

Traffic in hired boats continued to decline in June.

Shannon lock and bridge passages by hired boats January to June

That decline outweighed the small increase in private traffic, leading to an overall decline in the first six months as compared with the same period in 2012, which itself continued the pattern set in 2007.

Shannon lock and bridge passages by all boats January to June

I wondered whether the figures might show any change in the geographical distribution of activity. WI’s reports don’t show separate figures for private and hired boats for the individual locks, but it seems to me that the hire business is becoming more concentrated on northern waters, from Lough Ree upwards. If that is so, then there might be an increase in the proportion of passages through the northern locks, from Tarmonbarry upwards, and a decrease in the proportion passing through Portumna Bridge and Meelick (Victoria) Lock.

I put the WI reporting stations in four groups:

• Portumna + Meelick
• Athlone
• Tarmonbarry, Clondra, Roosky, Jamestown (Albert), Knockvicar (Clarendon)
• the also-rans: the three locks leading to Lough Allen, Pollboy leading to Ballinasloe, the Limerick sea-lock (Sarsfield).

The figures suggest that the distribution is indeed changing, but gradually rather than dramatically. Athlone’s figures are pretty steady, the outliers are declining slightly and Portumna + Meelick are declining a bit more; the northern locks (Tarmonbarry to Knockvicar) are taking the gains. Comments or alternative interpretations welcome.

Lock passages by group

The figures for 2013 are for the six months January to June; those for other years are for twelve months.

The locks could of course be grouped in other ways, and I may try some of them in future months.