Bridge repair completed

The bridge over the stream below the Cringleford flyover has now been restored. Steel girders have been installed to give the new decking improved support from below. The bridge is now in use, but this section of the Yare Valley Walk can be expected to be closed in the near future for improvement work of the river path and banks. See earlier news for the 7th October more details.

Making wetlands more resilient to climate change

Norfolk Rivers Trust have been overseeing work on the wetlands between the Strawberry Field and the river. The aim is to make the wetlands more resilient to climate change. Recent extended droughts have resulted in some of the wetland peat drying out, with release of carbon dioxide, and an adverse effect on flora and fauna. Pools are being created to store more water in time of flood, the water then being available during dry periods.

In the foreground is a stilling pool. This is deep enough to reduce the velocity or turbulence of the water flowing into the pool system and encourage sedimentation prior to the water entering the main pool. The channel leads to the main water storage pool.

The channel enters the storage pool on the left. The other end of the storage pool is sloping to encourage a variety of flora and fauna habitat.

Nearby a scrape has also been created. Scrapes are shallow ponds of less than 1m depth with gently sloping sides. They hold rain or flood water seasonally and, hopefully, will remain damp for most of the year.

It all looks rather stark at the moment, but it will not be long before nature takes advantage of the opportunities offered, and all will assume a softer natural appearance.

The changes will be monitored by the Norfolk Rivers Trust to see how effective they are in reducing the drying out of the wetland. The Trust has further projects in hand to improve the effectiveness of the Yare Valley as a wildlife corridor.

Temporary closure of the Yare Valley Walk between Strawberry Field and Cringleford Meadow.

Notices have now been posted announcing the work that is to be done on the Yare Valley Walk along the riverside between the Strawberry Field and Cringleford Meadow. The work is expected to be started in the near future, but no date has been given.

This section of the walk has long needed improvement. It can become very muddy and almost impassable in adverse weather conditions. The improvements being planned are very welcome, and are being carried out in fulfilment of a condition placed on the planning approval for Phase 2 of the McCarthy Stone development on the Bluebell Road.

The map for the diversion is the same as that already posted for the temporary closure of the bridge in the news item below.

Temporary closure of footbridge on Yare Valley Walk

Norwich City Services Ltd will be repairing the damaged bridge at Cringleford Meadow underneath the A11 flyover which provides access over a ditch along the Yare Valley Walk.

Norwich City Services Ltd carried out a rapid temporary repair of the bridge in the summer and will be returning on Tuesday 11th and Wednesday 12th October to carry out a full repair. This will involve installing new metal support beams to strength the bridge and installing recycled plastic decking boards. The bridge will be closed while the work is being carried out.

Metal support beams arrive for bridge reinforcement

The Norwich Fringe Project will be erecting notices to show a diversion to avoid the bridge. The diversion from the direction of UEA will be through the Strawberry Field, turn right on to Bluebell Road, turn right at Eaton Traffic lights, and then right again to enter Cringleford Meadow Car Park. The reverse of this route will enable you to re-join the Yare Valley Walk from the direction of the Cringleford Meadow Car Park. A map showing the diversion has been posted on the Walk:

Map of Diversion

Yellow Rattle Planting at UEA Meadows

Matt Tomlinson of Friends of Strawberry Field and UEA Meadows writes:

“To continue our work to help restore the UEA meadows – UEA estates have kindly cut short an area on the meadow by the lake for us. We can now rake up the arisings and create some bare soil to sow yellow rattle and other strawberry field wildflower seeds. This worked really well last year and it would be great to build on this success. 

Dates and times –

Sunday 8th Oct 10-12pm

Saturday 14th Oct 2-5pm

Please bring a rake with you if possible. I have borrowed 6 if you don’t have any.

Coffee and biscuits provided and of course everyone is welcome.

Hope to see you then” 

Volunteering in October

The October Programme for the Conservation Volunteers is now available here.

Mike Webster writes:

“October is approaching, and it definitely the season of mists and mellow fruitfulness now.  I hope that you know someone can come out and join us for a transitional month as we finish off cutting and raking our precious remaining wildflower meadows, before moving into more scrub clearance and pond work as the nesting season finishes.  To celebrate Friday 13th we have a trip to a spooky castle, but on Halloween itself the only horror show will be seeing how overgrown some newly planted trees have got!  Also this month there’s the chance to both cut back laurel and plant spring bulbs in Cringleford, and we will be exploring some new areas of East Ruston’s giant area of “Poor’s Allotment” (land allotted to the poor of the parish, now tremendously good wildlife habitat) to see the process of restoring a heathland in action. “

Water Lettuce Invasion?

Water lettuce, Pista Stratiotes, has been spotted on the river. This is a non-native invasive species and in warmer waters can present a serious problem. In this country it is on sale for ponds and aquariums, but should not be released into the wild. The leaf rosettes produce stolons that can give rise to daughter rosettes, these can detach from the parent, and enable the species to spread through a waterway.

Water Lettuce Photo: Martin Pooley

At present the view of the GB Non-Native Species Secretariat (NNSS) is that water lettuce is unlikely to survive the winter in the UK. That is not to say that climate change, and the possibility of the development of more hardy varieties, could not result in it becoming a problem in the future.

If you discover a plant on the river that you believe might be a serious invasive threat, please check it out on the NNSS website, and follow the advice they give on reporting it.

Volunteering in September

The September Programme for the Conservation Volunteers is now available here.

Mark Webster writes:

“Well, September is here, back to school and college for some and back to the rake (rather than grindstone) for us, as meadow management season is in full swing.  Since the Second World War, Britain has lost 97% of its wildflower meadows, making the fragments of this habitat that we still have all the more precious.  Make hay while the sun shines, as they say, and in our case there will be a lot of haymaking this month, as we cut and rake up a variety of different grassland sites all over Norwich: this management is vital in order to keep the meadows from being taken over by nettles, thistles, brambles and scrub.  We have also got a bit of bracken bashing, and another trip out to the fine old town of Bungay.

While I think about college, I would also like to announce an additional minibus pick-up point near UEA: if anyone would like to meet us at the Triangle Car Park here https://gridreferencefinder.com?gr=TG1838507940|Point_s_B|1&t=Point%20B&v=r [ what3words: risky.froth.study ] at 9.15am, please contact me via 07740 899 691  mark.webster@tcv.org.uk to confirm your place on the bus.

For those enthusiasts of the bad puns and film/tv/pop culture references with which I try to liven up these programmes (no, honestly, some people are) this month is something of a song lyric special, thanks largely to one volunteer (you know who you are) who got me thinking how many songs have hey (hay) in the title, perfect for this month.”

Sustainable links to the Yare Valley

A planning application has been submitted to Norwich City Council for the Carrow Works, King Street, Norwich.

You can view everything submitted as part of the application online on the Carrow Works Norwich City Council website.

Public comment on the application should be made before 15th September 2023. You can comment in the following ways:
online at planning.norwich.gov.uk by searching for application number 22/00879/F
or by email planning@norwich.gov.uk.

The Yare Valley Society has an interest in this application because of the development’s outstanding potential to deliver safe means of sustainable travel from some large residential areas of Norwich to and from the Yare Valley Green Infrastructure Corridor (GISC), and, in particular, to and from the Whitlingham Country Park.

Cycling and walking routes in the development, properly implemented, should reduce vehicular traffic in the GISC. The resulting reduction in noise and pollution should benefit the wellbeing of wildlife and of all who use the GISC for informal recreation.

The Society will be putting the case that, in the interest of safety of walkers and cyclists, and to best encourage a modal shift to sustainable people movement, the cycling routes should (a) be segregated from the walking routes, and (b) follow the recommendations contained in the Department for Transport, publication Cycle Infrastructure Design LTN 1/20 July 2020.

Please give your support to the parts of the application which will improve walking and cycling to and from the Yare Valley corridor.

Mowing the Meadows

Refuges for insects. Photo: Matt Tomlinson

Matt Tomlinson of Friends of Strawberry Field and UEA Meadows writes:

“UEA meadows had their annual cut and collect this week – important to deplete soil nutrients and control grass vigour. Arisings are being left under the tree belts, which make good habitat piles (for breeding grass snakes especially).

Creating Habitat. Photo: Matt Tomlinson

For the first time you will see uncut strips on the meadows, which act as refuges for over wintering insects. These will be moved every year.

Refuge for insects. Photo: Matt Tomlinson

Big thanks to Norfolk wildlife trust who have been down to Broad Hay Meadow this week to spread some green hay from their roadside nature reserve at Shotesham. A big square has been cut short, by UEA estates, to allow the seeds to have good contact with the soil and to keep the grasses in check. This will be a big boost to the meadows biodiversity and we look forward to see what comes up in the spring !

Thanks also to UEA estates for all their hard work in preparing the area at short notice.

We will be down at UEA in late September to get some more yellow rattle sown.”