Navigating Bridges around the Broads

There are a number of bridges around the Northern and Southern Broads, all Bridges on the Broads must be navigated with caution but particular care should be taken when passing under the lowest and narrowest bridges, Potter Heigham, Wayford, Ludham, Wroxham and Beccles Old Bridge.

The bridges you will be able to pass under is determined by the size of the cruiser and level of the tide . To find out whether or not your cruiser can pass under a specific bridge look at the cruiser description either on our website or in our holiday brochure. The height of your boat, with windscreen and canopy down, should also be shown in your cockpit. Some cruisers may only be able to pass under a particular bridge at low tide use the Tide Table in your Skippers Manual to work out the best time to pass through.

At all bridges (except the railway swing bridge at Reedham) you will need to lower the windscreen and canopy on your cruiser, you will be shown how to do this in your Boat Handover. Always remember to make sure that everyone stays in the cockpit or below decks and if your cruiser has two steering positions you should steer from the lower position when passing under a bridge. NEVER pass under a bridge if someone is on the cabin top as they could be seriously injured.

For more information on navigating bridges watch the Broads Authority Video Passing Safely Under Bridges.


Approaching a Bridge

When you are approaching a bridge, look out for the Broads Authority’s gauge posts. These are clearly visible and show the maximum clearance at the peak of the arch, measurements are given in both metric and imperial. At low bridges a warning board will be shown, if there is more than one arch, always use the one displaying the board or where a bridge has arrows on it, keep between them when you pass through.

If the bridge gauge reads less than the height of your boat, with windscreen and canopy down (as shown in the cockpit), do not attempt to pass under it. If there is only a narrow clearance margin, use extreme caution.

Bridge Drill

  • Check the bridge gauge to make sure you have sufficient clearance.
  • Lower your canopy and windscreen.
  • Make sure that everyone on board, particularly children, are in the cockpit or below decks.
  • Check your dinghy mast is lowered.
  • Ensure that your top deck is clear of TV aerials etc.
  • If you are sailing against the tide, give way to craft travelling with it.
  • Motor cruisers should give way to yachts. Yachts have to lower their masts at fixed bridges and have reserved moorings for this purpose. Please don’t use these moorings and keep well clear of yachts manoeuvring near bridges.
  • Aim the centre of your boat at the centre point of the bridge and use adequate throttle (if you are going too slowly the wind may blow you off course).


Bridges Heights

Headroom (at bridge centre) at average water:

Bridge Clearance
metric imp
Acle 3.66m 12′
Beccles Road Old* 1.98m 6′ 6″
Beccles Bypass New 3.66m 12′
Breydon Fixed Span 3.96m 13′
Breydon Road Lifting 3.51m 11′ 6″
Haddiscoe New Cut 7.32m 24′
Norwich Jarrolds Bridge 3.63m 11’11”
Norwich Lady Julian 3.96m 13′
Lowestoft Harbour 2.16m 7’1″
Ludham 2.59m 8′ 6″
Norwich Carrow 4.27m 14′
Norwich Foundry 3.05m 10′
Norwich Novi Sad 4.88m 16′
Norwich Trowse 2.74m 9′
Norwich Bishop’s Bridge 3.2m 10’6″
Postwick Viaduct 10.67m 35′
Potter Heigham New 2.31m 7’7″
Potter Heigham Old* 1.98m 6’6″
Oulton Broad, Lake Lothing 4.57m  15′
Oulton Broad Mutford 2.39m 7′ 10″
Reedham 3.05m 10′
St Olaves 2.44m 8′
Somerleyton 2.59m 8′ 6″
Thorpe Rail (each) 1.83m 6′
Wayford 2.13m 7′
Wroxham Rail 4.57m 15′
Wroxham Road* 2.21m 7 ‘3″
Yarmouth Haven 2.90m 9′ 6″
Yarmouth Acle Road 2.13m 7′
Yarmouth Vauxhall 2.06m 6′ 9″


Bridges Requiring Extra Care

Potter Heigham Old Road Bridge

This is one of the most difficult bridges to negotiate as the centre arch is only 6ft 8in at average high water and the sides fall away sharply into the water at half circle.

As  result of increased water levels we can no longer guarantee that any of our cruisers will fit under Potter Heigham Bridge. If you very lucky and there is an extremely low tide it may be possible to pass through. You will have been advised on booking whether or not your craft will pass under the bridge, but be aware, this is still often dependant on the suitable state of the tide. You MUST use the Bridge Pilot Service to pass under the bridge, this service is arranged by the Broads Hire Boat Federation and their is a fee for passing under the bridge which you as the customer pay directly to the Bridge Pilot. Herbert Woods are not liable for the cost of using the pilot service and is down to the hirer to cover this cost.

The service is available from Phoenix Fleet boatyard between 8.30am and 6.00pm every day from 1st April (or one week before Easter whichever is earlier) to 31st October, and between 10.00am and 4.00pm weekdays only for the rest of the year. (subject to tide and weather). To use the bridge pilot moor before the bridge on the right hand side, once moored please telephone Pheonix Fleet on: 01692 670460 and ask for the Bridge Pilot. Give them your boat name and location and the pilot will be with you as soon as possible. It would greatly assist the pilot if you lower the canopy and screens if necessary whilst you are waiting.

The Pilot Service is marked with flags and signs as you approach the bridge the pilot will take you through either direction. It will help if you arrive at Potter Heigham Bridge about 2 hours before low water, (low tide at Potter Heigham is 3 hours after Great Yarmouth – see your tide table. (if your water tanks are full this will help to keep your boat in low in the water.

On some larger boats a plaque will advise you that the boat will normally pass under the bridge, however, the decision on whether or not a boat can be taken through is entirely at the discretion of the pilot. There are often borderline cases due to wind conditions or especially high tide and under no circumstances must you go against the pilot’s advice. Remember that water heights, tide and wind may be different on your return, so always take advantage of the pilot service.


Wroxham Bridge

There is a Bridge Pilot service at Wroxham Bridge, it must be used if you intend to pass under the bridge. The service operates 8.30am – 5.00pm seven days a week.

To use this service please moor on the pilots quayside immediately before the bridge on the right hand side. If this space is full, the bridge pilot will be able to advise you of other suitable moorings where you can wait, but please be aware at peak times there may be no available space if the service is very busy.

Once moored please telephone the Bridge pilot on 07775 297 638 giving your boat name and your location and the pilot will be with you as soon as possible. Please be patient as at busy times there may be a short wait. It would greatly assist the pilot if you lower the canopy and screens if necessary whilst you are waiting.

The fee for using this service is £7.50 each way and must be paid to the pilot via contactless payment. Herbert Woods are not liable for the cost of using the pilot service and is down to the hirer to cover this cost.

Please note that passage through the bridge is always at the pilot’s discretion.


Great Yarmouth

At Great Yarmouth there are three low bridges which you may not be able to pass though if the tide is very high. The best time for passing through Great Yarmouth is one hour before to two hours after the low water times shown in the tide table. This will give you the best headroom under the bridges and your boat will be easier to manoeuvre as the current will be less. Slack water, when the current is still at the change of tides, occurs about one hour after the times given. Be sure to take notice of the three vertical red lights on Breydon Bridge, and the Vauxhall/Acle Road Bridge. Do not continue through if these lights are lit.


Reedham and Somerleyton Swing Bridges 

As you approach the bridge check the advance bridge height gauge to see if your boat will pass through. If you need the bridge to open give three long blasts on the horn. Whilst you wait for the bridge to open keep a safe distance from it and also from any other boats that are waiting to pass through.

A single red flag being flown at the bridge indicates that it is operational and in service. If two red flags are being flown the bridge is not in service and is in-operable. If this is the case please take note of any signs that are displayed.


Are you looking for a Norfolk Broads boating holiday? If so, have a look at our entire fleet of hire cruisers.