Power cables over River Corrib - How high above water?

JohnCleary · 11-08-2009, 18:18

OK now here's a random question for ye....

There are 2 sets of power lines going over the river corrib, one at Dangan and the other just below Dangan, but up from Corrib Village. By any chance, does anyone know, or know where I can find out, how high above the water they are? (I realise there'll be a few inch variance as water level rises/lowers)

Thanks folks

**Robbo** · 11-08-2009, 18:31

The heights are marked on the old set of modified Admiralty charts. I have no idea how accurate this is as the ones I have were marked up in the early 90s.

JohnCleary · 11-08-2009, 18:38

Quote:

Originally Posted by Robbo

The heights are marked on the old set of modified Admiralty charts. I have no idea how accurate this is as the ones I have were marked up in the early 90s.

Hmm, nothing on my BA charts - if you come accross yours i'd be greatful if you could let me know. Also if you know the height of the Quin bridge that'd be great

**Robbo** · 11-08-2009, 19:31

They're sitting on the cruiser. I'll dig them out next time I'm down the club.

ve · 11-08-2009, 19:37

What do you plan on sending along the corrib? as a matter of interest.

JohnCleary · 11-08-2009, 19:39

Quote:

Originally Posted by ve

What do you plan on sending along the corrib? as a matter of interest.

Nothing, i'm just curious

**cornbb** · 11-08-2009, 19:53

Quote:

Originally Posted by ve

What do you plan on sending along the corrib? as a matter of interest.

His doomsday device is about to receive an upgrade that will allow it to prowl our inland waterways. He needs to know what overhead clearance is available

...

JohnCleary · 11-08-2009, 19:58

Quote:

Originally Posted by cornbb

His doomsday device is about to receive an upgrade that will allow it to prowl our inland waterways. He needs to know what overhead clearance is available

I was waiting for someone to mention that thing

Fey! · 11-08-2009, 20:12

Surely those wonderful, efficient souls in the ESB should be able to tell you; you'd imagine it'd be the kind of information they's need to have close to hand in case of anything being floated up the river.

In the case of the bridges, infrastructure department in the corporation should be able to tell you the high and low tide heights of all of the bridges.

Otherwise sit under it in a boat with a laser rangefinder...

Zzippy · 11-08-2009, 20:14

John, I hope you're not doing the boy racer thing and fitting a ridiculous aerial to your boat!

The OPW should be able to tell you the height of the bridge, although it varies a good bit depending on how many gates are open on the weir. Or the owner of the Corrib Princess probably has a good idea, he barely gets through sometimes, and I'm sure he knows the draught and overhead clearance of his boat...

Robbo, where did you get the modified Admiralty chart? I've only seen the original one that has Lough Mask on it as well...

JohnCleary · 11-08-2009, 20:31

Quote:

Originally Posted by Zzippy

Robbo, where did you get the modified Admiralty chart? I've only seen the original one that has Lough Mask on it as well...

Off Topic, but I will be releasing CorribCharts in the coming weeks - A totally digitalised version of the old BA chart with contour lines, depths, safe routes, marks, shallows etc.

Here's some screenshots....

JohnCleary · 11-08-2009, 20:33

Quote:

Originally Posted by Zzippy

John, I hope you're not doing the boy racer thing and fitting a ridiculous aerial to your boat!

The OPW should be able to tell you the height of the bridge, although it varies a good bit depending on how many gates are open on the weir. Or the owner of the Corrib Princess probably has a good idea, he barely gets through sometimes, and I'm sure he knows the draught and overhead clearance of his boat...

Robbo, where did you get the modified Admiralty chart? I've only seen the original one that has Lough Mask on it as well...

Quote:

Originally Posted by Fey!

Surely those wonderful, efficient souls in the ESB should be able to tell you; you'd imagine it'd be the kind of information they's need to have close to hand in case of anything being floated up the river.

In the case of the bridges, infrastructure department in the corporation should be able to tell you the high and low tide heights of all of the bridges.

Otherwise sit under it in a boat with a laser rangefinder...

Thanks for the info lads. Will get onto Mr. McDonagh of the Corrib Princess as he's sure to know his own air draught. I know that when water level is high there's only about 2ft clearance (if not less)

Will also try ringing OPW and the ESB

Zzippy · 11-08-2009, 20:45

Quote:

Originally Posted by JohnCleary

Thanks for the info lads. Will get onto Mr. McDonagh of the Corrib Princess as he's sure to know his own air draught. I know that when water level is high there's only about 2ft clearance (if not less)

Will also try ringing OPW and the ESB

Like the charts John! Now I see why you're looking for the info...
I do a bit of mapping and GIS work and they look pretty good. Do you mind me asking where you got the baseline data from to generate the charts and contours? I'd be interested in getting a copy when you're finished anyway...

I know McDonagh has had problems with clearance before and had to get the OPW to open more gates to lower the level so he could pass under the bridge, so between them you should get an accurate height.

**Robbo** · 11-08-2009, 20:46

Quote:

Originally Posted by Zzippy

Robbo, where did you get the modified Admiralty chart? I've only seen the original one that has Lough Mask on it as well...

Years ago, there was a member of the Corrib branch IWAI who was producing a version of the 1848 charts updated with current marks and shallows. It's not exactly pretty but it does the job.

JohnCleary · 11-08-2009, 21:03

Quote:

Originally Posted by Zzippy

Like the charts John! Now I see why you're looking for the info...
I do a bit of mapping and GIS work and they look pretty good. Do you mind me asking where you got the baseline data from to generate the charts and contours? I'd be interested in getting a copy when you're finished anyway...

Nice? They're fuppin' excellent you cheeky pup!

The basemap was created from scratch - there is no other digital map of the Corrib with such a high quality basemap (Well, i've yet to see one anyhow). 2 of us involved with the project, I deal with the shallows/marks/safe routes etc. the other party deals with the basemap/outlines and contours. Think it has something to do with georeferencing or something to that nature.

Now, wonder what the RRP should be per copy?

(I joke, I joke!)

11-08-2009, 18:18	#1
JohnCleary Registered User Join Date: Jul 2003 Posts: 7,040 Adverts \| Friends	Power cables over River Corrib - How high above water? OK now here's a random question for ye.... There are 2 sets of power lines going over the river corrib, one at Dangan and the other just below Dangan, but up from Corrib Village. By any chance, does anyone know, or know where I can find out, how high above the water they are? (I realise there'll be a few inch variance as water level rises/lowers) Thanks folks

11-08-2009, 18:31	#2
Robbo Witchfinder General Join Date: Nov 1999 Location: Galway Posts: 4,920 Adverts \| Friends Mod: Beer Guts & Receding Hairlines	The heights are marked on the old set of modified Admiralty charts. I have no idea how accurate this is as the ones I have were marked up in the early 90s. __________________ “Your posts tonight have been described variously as ‘Rabid’, ‘Pig Ignorant’ and ‘stultifyingly ill-informed'. Thanks for those." Worship this man like a god.

11-08-2009, 19:31	#4
Robbo Witchfinder General Join Date: Nov 1999 Location: Galway Posts: 4,920 Adverts \| Friends Mod: Beer Guts & Receding Hairlines	They're sitting on the cruiser. I'll dig them out next time I'm down the club. __________________ “Your posts tonight have been described variously as ‘Rabid’, ‘Pig Ignorant’ and ‘stultifyingly ill-informed'. Thanks for those." Worship this man like a god.

11-08-2009, 20:12	#9
Fey! Registered User Join Date: Nov 2005 Location: Feeding the Trolls!!! Posts: 2,796 Adverts \| Friends	Surely those wonderful, efficient souls in the ESB should be able to tell you; you'd imagine it'd be the kind of information they's need to have close to hand in case of anything being floated up the river. In the case of the bridges, infrastructure department in the corporation should be able to tell you the high and low tide heights of all of the bridges. Otherwise sit under it in a boat with a laser rangefinder... __________________

11-08-2009, 20:14	#10
Zzippy Registered User Join Date: Jun 2007 Location: Galway Posts: 2,346 Adverts \| Friends	John, I hope you're not doing the boy racer thing and fitting a ridiculous aerial to your boat! The OPW should be able to tell you the height of the bridge, although it varies a good bit depending on how many gates are open on the weir. Or the owner of the Corrib Princess probably has a good idea, he barely gets through sometimes, and I'm sure he knows the draught and overhead clearance of his boat... Robbo, where did you get the modified Admiralty chart? I've only seen the original one that has Lough Mask on it as well... __________________ "What would the world be, once bereft Of wet and of wildness, let them be left O let them be left, wildness and wet Long live the weeds and the wilderness yet" Last edited by Zzippy; 11-08-2009 at 20:17.

11-08-2009, 19:37	#5
ve Registered User Join Date: Oct 2004 Posts: 442 Adverts \| Friends	What do you plan on sending along the corrib? as a matter of interest.

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