The above example Grid Reference is fully specified to 1m accuracy; ie. both Easting and Northing values are specified using 5 digits. Grid References read off OS Maps are often only specified to the nearest 100m using just 3 digits for both Easting and Northing values; for example TG 457 867

In this app you may locate Grid References to the accuracy that suits you. At 10km, 1km, 100m, 10m or 1m accuracy. For example...

• 10km accuracy, a SINGLE digit for Easting and Northing e.g. TG 5 9
• 1km accuracy, TWO digits for Easting and Northing e.g. TG 46 88
• 100m accuracy, THREE digits for Easting and Northing e.g. TG 457 877
• 10m accuracy, FOUR digits for Easting and Northing e.g. TG 4568 8765
• 1m accuracy, FIVE digits for Easting and Northing e.g. TG 45678 87654

Which ever level of accuracy you choose to use you MUST use the same number of digits to specify both Easting and Northing

We ignore any <spaces> you enter in a Grid Reference. So, you can use spaces as you see fit to seperate the parts of a Grid Ref. to make things easier to enter. For example; TG4567887654 can also be entered as TG 4567887654 or TG 45678 87654. Each of these examples are treated as identical.

Remember to include relevant leading 0`s in all your Eastings and Northings. For example TG 912 129 is a very different location to TG 00912 00129!!!

Please Note - Bridge clearance heights are quoted as the vertical distance from High Water level to the underside of the bridge. High Water level used is the average, summertime, High Water. Where the bridge is an Arched Bridge, the clearance height is given for the centre of the Arch.

Make sure you know the headroom (air draught) your boat needs before trying to get under a bridge. This is the distance between the waterline and the topmost part of your boat.

Check the advance bridge gauge or clearance boards to see what clearance you have available and whether your boat will pass through

Potter Heigham Old Road Bridge

MOST hire boats are REQUIRED use the bridge pilot - available 8.30 am - 6.00 pm. Passage depends on tide and weather conditions. Tel: 01692 670460

Wroxham Bridges

MOST hire boats are REQUIRED use the bridge pilot - please refer to your boat manual. Make sure the back of your boat is clear of the bridge before you turn

You are free to make use of these maps and data to best suit your own needs...

However!

• Most of the information shown on the Map is Copyright material of Google!
  IF you take any screen shots of the Map, for inclusion on your own websites or publications, you MUST include a copyright notice to Google for their Map content
• You are asked to acknowledge the author if you make use of the map and/or data on your website(s) or in your printed publications

Originally, created as a desktop app, to produce a printable Map and list of Vehicle Access Points for the Broads Northern Rivers; included as an appendix for the RYA Manual of a local RYA Training Centre.

It was recently suggested that it may be useful to make this info more widely available

Consequently, I have produced this Web App, extending data to also cover the Broads Southern Rivers. And, I've included many of the Broads Free Public moorings along with a few popular moorings where moorings fees may apply.

The Map provides an easy way of obtaining geographic coordinates for any point of interest to users. Formatted as `decimal` Lat/Lng (Google), `d mm.mmm` Lat/Lng and Ordnance Survey Grid References ex. TG 79151 14030 (1m accuracy)

(As of 27 Feb 2018, This App is a `Work in Progress` - Hope to complete by end of March 2018)

© 2018 - ByTS - All rights reserved

Contact Me

I've tried to present accurate data on the Map (E&OE). However, others may know better.

If you have any issues with the data, accuracy, ommissions or stuff shown here that, perhaps, shouldn`t be. Feel free to raise an issue

You can email me tony.southwood@googlemail.com

Stuff about postcode