The Great Ruaha
River, formally a perennial river, which rises in the hills of the Usangu
catchment ceased to flow for the first time in living memory during
the dry season of 1993 and this drying-up has continued every year since,
with the period of non-flow increasing to several months. As the Great
Ruaha River is the life blood of the Ruaha National Park we have witnessed
an environmental disaster of monumental proportions unfold over the
last 10+ years.
In the years
immediately prior to (latter half of the 1980s) and coincident with
the continuing drying up of the Great Ruaha River various programmes
of so-called "improvement" of smallholder irrigated rice schemes
were undertaken in the Usangu catchment. In addition, two new large
scale schemes were constructed - Kapunga (1988-1992) and, inexplicably
in view of the problems already in evidence, Madibira in 1998.
The amount of
water entering the catchment area has not changed to any significant
degree. Local people find it incomprehensible that, what to them was
an obvious correlation between the building of the "improved"
rice irrigation schemes and the Ruaha River ceasing to flow was not
immediately recognised and measures taken at an early stage to test
the hypothesis and address the problem. Delay in positive "on the
ground" action has served only to exacerbate the problem and make
it's resolution more difficult as huge numbers of migrant people associated
with rice farming and cattle herding have come into the area.
and others have been campaigning for years to save this unique ecosystem
from total destruction, not only because of its international status
of enormous environmental importance and bio-diversity (rapidly degrading)
but also for it's huge economic importance to Tanzania.
There has been
extensive research (much of it funded by the UK government) into the
reasons for the drying up of the Ruaha River, numerous papers written
and many workshops conducted into the cause(s) of this state of affairs;
but, so far, there has been little implementation of any practical measures
'on the ground' to stop the haemorrhaging of water and aid the restoration
of the Ruaha River to it's original status as a 'great' and perennial
river. However, RBWO Rufiji-river Basin Water Office) have commenced
some practical measures on the Ndembera River near Madibira, , and the
RIPARWIN research body are also on the brink of introducing some new
practical ways of measuring water flow and off-takes more accurately.
March 2001, whilst in London at the Rio+10 preparatory meeting the Prime
Minister of Tz., Mr. Sumaye, together with UK Prime Minister Tony Blair,
committed Tanzania to restoring year round flows in the Great Ruaha
River by 2010. However,five years on and the river, and thus the entire
ecosystem, is in an even more critical state.
Management of Usangu Wetlands & it's Catchment (SMUWC), now ended,
funded by DFID (formally ODA) UK.
Irrigation Productivity and Releasing Water for Intersectional Needs
(RIPARWIN) also funded by DFID and is based on the work done by SMUWC.
While SMUWC studied aspects of natural resource use in Usangu, RIPARWIN
is looking more closely at water management, specifically irrigation
research carried out by SMUWC and now by RIPARWIN has identified the
problems which led to the drying up of the Great Ruaha River, and the
most cost effective approaches in tackling them. The issue is now to
translate these ideas into ACTION so that we restore a permanent flow
to the Great Ruaha River and its environmental dependants, and provide
meaning to the effort that has gone into understanding the problems.
1. That there
is an undisputed correlation between the so-called "improved" rice irrigation farming and the drying up of the Great Ruaha River.
2. That the
so-called "improvement/modernisation" of indigenous traditional
smallholder small-holder schemes does not necessarily result in improved
water control, greater equity, reduced water user conflict and higher
performance. Indeed such programmes may aggravate these and have a negative
impact and may result in more problems than they have solved.
3. That by following
the research recommendations and preventing an expansion in water abstraction
from the catchment during the wet season and the unnecessary abstraction
of water during the dry season, it is possible to restore dry season
river flow with little impact on rice production.
The dry season
of 2003 was the most desperate, even elephant could not find water below
the dry surface of the Ruaha River bed (as they do below sand rivers
in the dry seasons) indicating the extent to which the entire water
table has fallen. Scores of hippo, forced to mass together in muddy
pools, died - this is not what tourists want to witness! The distribution
of some of the mammals has changed markedly as a result of their search
for water, leading them into conflicts with the villagers around the
On the 29th
October 2005 the 'Great' Ruaha River ceased to flow at the Jongomero
end of the Park (western end).
It began flowing
last year on the 4th December 2004, having stopped on the 2nd November
2004. This makes a record total for 2004 (for recent times) of only
31 days dry.
to my records, (1994-2005) for the years of 2004 and 2005 the river
has flowed for approximately 5-6 weeks longer than in previous years.
It is my belief
that the valuable work that the RBWO (Rufiji-river Basiin Water Office)
doing along the Ndembera river has contributed greatly to this increased
The work that
they are doing, is simple but effective. They are making sure that from
June - Oct all irrigation gates off that river are closed, so that the
water may continue down to the Usangu Swamp. However, this is only one
of the rivers entering the Basin.
believe, that if this simple operation was replicated on the other major
rivers entering the swamp this would be an excellent way to at least
start combating the problem of flow during the dry season.
I would like
to congratulate the RBWO office for their work.
back to top
THE MOST RECENT
UPDATE FROM RIPAWIN 2005
on research for the Great Ruaha River problem)
given invaluable insight to the problem via their extensive research.
is that most actions are now with the RBWO. They, in support with WWF,
are deploying policies that engage with upstream farmers constructively
and are having an effect on downstream releases. They are also getting
good support from FAO, and we are very impressed with RBWO's efforts
given the constraints they face.
is very much in its final stages - dealing with uptake and dissemination
of key ideas. Our project is trying to get the key players in Dar to
think about revising intakes which will make it easier to release more
water downstream, as well as resolve conflicts between them. We've already
opened the debate on this, and are having a follow up meeting.
The other thing
is to get the river basin game taken up formally as a means of ensuring
that river users realize how to share water, and save water and release
water. This game goes alongside the intake revision ideas. There is
now good interest this tool, and we are demo-ing the game to the two
key ministries at each opportunity.
Our team is
also about to deliver the Ruaha Basin Decision Aid (RUBDA) which will
support the RBWO in taking decisions about water rights, so that they
can address the balance between upstream and environmental needs. This
training is in December, and is a follow up to initial training held
We have also
submitted documents to the RBWO that specify how the river may be kept
flowing year round, including the amounts of water needed below the
intakes to ensure dry season flow. This is about 5-7 cumces.
We have also
been working quite closely with the Ministry of Agriculture so that
they revise their irrigation efficiency. We believe it
is important to realize that smallholders are generally efficient, but
are facing structural constraints that make it difficult for them to
change their activities, but lining canals are not related to these
types of problems and will not resolve water losses.
We have also
generated several other small documents that pose various questions
about water management, and allocation of water between different sectors.
They also say:-
It is interesting
that the concept 'that Usangu irrigation is inefficient so that improving
irrigation management can help fill the hydropower dams' (not a quote
but an interpretation) remains so resilient - this was the rationale
for the RBMSIIP project.
The SMUWC project
and the RIPARWIN project has long argued that the major water waste
in irrigation occurs during the dry season and that these savings are
probably only enough to provide extra water during the dry season to
keep the wetland topped up and therefore to give some hope to the notion
of returning the Ruaha to year-round flow. It is not helpful to argue
that the tradeoff exists between irrigation waste and hydropower, though
one can argue that a balance exists between irrigation and hydropower
- BUT - even that has to be qualified because of the fact that Mtera/Kidatu
receive their flows from many other rivers, and that the proportion
of water depleted by irrigation is probably in the region of 15 to 35%
- and that the manageable and useable waste part of this is an even
smaller fraction. It has long been established that the power cuts from
Mtera/Kidatu are a result of excessive and relatively inefficient water
releases, due in part to a divergence between technical and political
objectives for power management.
Much more work
can be done in terms of the trade-off between irrigation and the environment,
not in terms of large quantitative water releases but in getting this
highly valuable dry season water better managed between sectors. I believe
that this can be done via better water management. In turn, the question
- "how to do this?" remains key.
We need a discussion
on this and RIPARWIN has been holding meetings on this with various
stakeholders. The idea that lining canals underpins improved water efficiency
is far-fetched, and yet this remains common theory within the irrigation
profession and can be found frequently mentioned in the literature related
to irrigation efficiency in East Africa. Likewise, I keep coming across
the notion that 'farmers need training on irrigation management', when
in reality they are year-round highly-experienced experimenters and
observers of irrigation. A better approach would be help them frame
their experience so that they can solve their issues between them, and
take more major priorities to service-oriented authorities. This is
the big difference between conventional 'farmer training' and the river
basin game, a problem-framing tool that the RIPARWIN project designed.
With my 21 years
experience in irrigation, I would not have 'found' the RBMSIIP link/rationale
between efficiency and high-volume downstream releases because that
is not how I conceive of, or measure, irrigation efficiency.
In the final
few months of RIPARWIN, I hope that we are able to disseminate our message
of what irrigation efficiency consists of, and how best to improve it,
and that related to this, some key organisations are able to hear us.
back to top
in reply to the above sums up the situation very well:
A PERSONAL VIEW
FROM ROBERT ROBELUS:-
WORLD BANK ENVIRONMENTAL SPECIALIST - 5 Dec 2005
I agree with
you that irrigation has no or only a very slight impact on the filling
of the Mtera reservoir (the SMUWC project demonstrated this). The low
water level in the reservoir is a combination of reduced rainfall and
overdraft for electricity production (reduced rainfall is occurring
as well in other parts of East Africa during the last few years).
When the World
Bank started the RBMSIIP project: (i) in the beginning we did not have
an idea of the project losses and impacts. It was a black box; (ii)
when the SMUWC project demonstrated that irrigation doesn't have an
impact on hydropower, but did have an impact on the environment, the
implications were quickly adopted (e.g., no construction of weirs that
enable schemes full dry season abstraction) and closure of irrigation
schemes during the dry season to be enforced by the Rufiji Basin Water
a clear impact on the downstream environment (Usangu wetlands), and
especially the impact during the dry season on the flow of the Great
Ruaha River is significant. Closure of the irrigation systems during
the dry season and the use of groundwater for vegetable farming and
drinking water would greatly improve the situation in river and likely
restore the flow. The water right from the river during the dry season
should be zero. These actions need to be further detailed and enforced.
Also the need to rehabilitate
existing irrigation schemes and improve water management during the
wet season and increase incomes for farmers is clearly a priority.
back to top
Ruaha River December 20th
Though we did
enjoy an extended 5 weeks of flow this year, as I look outside the door
of my tent right now the so called 'Great Ruaha River" is no more
than a very hot, dry rock bed with a few scummy pools. The animals are
drifting about aimlessly in search of water. The remaining pools are
covered in green scum, the smell of putrid water is everywhere. The
rain is late so there are still some weeks to go before we can hope
for 'a river'.
Ruaha river 16th January
Ruaha and indeed
much of southern Tanzania has been suffering a drought the rain is very
late. However, thankfully on the evening of the 11th Jan 2006 after
wide spread, heavy rain along the Ruaha River the river flowed.
16th January 2006
Actual flow: 16th January 2006
continues, however it is a small ribbon of water approximately 4ft wide,
which is similar to the 'flow' a couple of weeks prior to the river
The river has
been dry this season (2005-2006) for a total of 75 days as opposed to
last years (2004-2005) all time record of being dry for only 30 days.
The rain continues
but only in light showers here and there. It is possible that the river
will dry up again soon.
back to top
Ruaha River 9 March 2006
Since the early
hours of the morning, there has been extensive rain to the west of us
(Jongomero end of the park). It looked as though Usangu was getting
this heavy rain too.
Now at almost
1.00pm there is a"big' river going by, the largest flood this year
so far, it has come up some 4 ft and is still rising. The water coming
by here is not just form the Jongomero but from from further west ,I
hope the Usangu area. I feel sure that some of this water will reach
Ruaha River 27 March 2006
Last night we
had heavy rain, though only 34mm recorded here most of yesterday was
grey and stormy, particularly further west of us here at Jongomero.
The Ruaha River
is now up about 4ft and is slightly higher than it was on my last update
9th March 06. According to observers on the Lunda section of the river,
some +140km from us here, the river rose approximately 2ft after the
flood I recorded to you all on the 9th.
The river dropped
to its new 2006, low level of constant flow, after a couple of days
after the 9th and remained at this level till today.
has improved these past weeks.
Ruaha River 31 March 2006
Since the 4ft
flood on the 27th March 06 the river slowly dropped a little more than
2 feet. Then yesterday 30th March 06, around mid-day, I noticed a small
change in the rivers flow. It began to rise a little, very slowly, and
now today 31st I believe that we finally have some water coming in from
the Ihefu swamp.
The flow is
of a different nature to a 'flash flood' and the colour of the water
is now not a muddy brown, carrying silt but a light 'tea' coloured water
that has very little silt suspended in it. This hopefully means that
the river will continue to flow at this level and maybe more...though
it is still lower than it was last year 05.
As an indication
to the depth of the river I make the following observation:-
I have just
watched 6 giraffe wade casually across the river, the general level
of the water is no deeper than up to their knees. ( in places it is
more but only for a few steps) It poses no threat for them. In contrast
to this from 1994 to about 2000, no animal, save the elephant, would
risk crossing the river in February or March (or January, depending
on the rain) The flow of water was such that it was usually difficult
for the elephants to cross easily, and
often times they would walk along the bottom with their trunks up acting
like a snorkle, the little babies would hang onto their mothers tail
and float along.
I think this
gives some visual indication that there has been a serious decline in
the wet season flow, which cannot be attributed to low rainfall alone.
back to top
Ruaha River 5 August,
The river is
low, and comparing the photos taken this time last year it is obvious
that the level of the river today, 5th August 2006, is similar to how
it looked around the beginning of September 2005.
So suffice to
say we are approximately one month drier/lower than last year.
The second thing
is, my comments made last year in support of the good work the RBWO
office is doing that their efforts on the Ndembera
a difference, seems to have been misconstrued by some. So I take this
opportunity in clarifying the matter:- I am not saying the Ruaha River
situation is restored or improving.
What I am saying
is that the simple and very good task of ensuring that the irrigation
gates along this river are closed from June to end October has increased
the length of time that the trickle of water that "flows" in the Ruaha River during the dry season by about 6 weeks.
operation was started the river would simply get lower and lower by
the day and then stop. Now it gets lower and lower by the day but once
it reaches its lowest 'trickle' level it manages to maintain this low
flow for about an extra 6 weeks before drying up mid October. Therefore,
my point is, that if this simple task was replicated along all the other
rivers that flow into the Ihefu, I believe that the trickle we see in
the dry season would be substantially improved.
The wet season
flow however, is another, much more alarming story, this gets lower
and lower each year, which is not due to lack of rainfall but from massive
over use by irrigation.
back to top
Ruaha River 22 March, 2006
Ruaha has received almost double its normal average in rainfall with
almost 900mm so far (with still more to come). We normally get around
500mm per annum.
All springs and water catchment areas within the park ar full and busting over, so this is a most welcome turn of events for the park.
March 22nd 2007
These pictures were taken from my 'old' camp (I have recently moved from this location near the river). The river rose way over this level for the duration of mid January to mid February. The river now flows at the level shown in the photos.
back to top
Ruaha River April 2007
As you know
Tanzania received very heavy rains this season. Which of course is fantastic
news. Mtera Dam went from its lowest level ever, to over-flowing in
a matter of a few weeks only!
of the river in April 07, when compared to the ones taken a month earlier,
(March 07, see above) show that, despite the good rainfall the river
is dropping fast. This indicates that there is a massive off-take of
water going on up stream from RNP.
23rd April 2007
23rd April 2007
We hope that
this constant drop in flow level will ease off soon.
back to top
Ruaha River January 2008
I was enormously disappointed to see the depressing state of the Ruaha
River. These pictures were taken on 12th January 2008 at the same
location in Ruaha National Park as all my previous records spanning the
past 14 years.
12th January 2008
12th January 2008
The water you see in the river is all from local flooding of the
Jongomero River and the Itiku. There has been NO water coming in from
Usangu at all.
On the 14th of January I travelled to Usangu and Mbeya to see that the
rice paddies are all fully flooded, all rivers flowing into the
catchment area were full and flowing very well, some of them were very
high. Mbeya has apparently received its highest rainfall on record for
the past 8 years. So my question is :-WHY IS THERE NO WATER REACHING
RUAHA PARK? The answer is quite simple the wet-season off take is far
There is no need for irrigation to stop but there is a need for the
irrigation system over the whole area to be properly planned.
When will we see this action taking place? It is not an impossible
task but it will require hands on expertise and law enforcement. If we
all pull together we will succeed.
If we are not careful the Great Ruaha River will stop flowing
back to top
Ruaha River April 17, 2008
The Ruaha River is looking great, a huge improvement since my update in
After a bad start with obvious massive off-takes in the catchment area,
rains have been exceptionally good this year, so the river in Ruaha
Park is looking wonderful.
26th March 2008
26th March 2008
26th March 2008
However, please note the stone which is just visible. I have always
used this as the level 'marker'. It is about a foot out of the water.
Ideally this marker should not be showing. In the early 1990's this rock
was always covered from January through to the end of April.
The other important and very excting news is that the Government has
been working hard to try to protect this important water source, and as
a result the Ruaha National Park has been extended to include the Usangu
Wetland, which will hopefully help to keep Ruaha 'flowing' throughout
the dry season.
The extension has been approved by Parliament however, we are still
waiting for the President to sign the documents.
We are thrilled by this very positive move towards conserving a very
important National resource.
I have also included a scenic view of the river near Msembe, HQ. (see below) I am
sure you will all agree that Ruaha is looking magnificent.
Great Ruaha River near Msembe, 26th March 2008
back to top
Ruaha River April 22, 2008
I am delighted to be able to tell you that the Ruaha Park has now been
officially extended to include the Usangu Game Reserve plus
additional land to the south and west. Ruaha is now the largest park in
Africa, covering an area of over 22,000sq.Km.
In recent years the Ruaha River has been drying up during the dry season
due to massive off-takes for irrigation purposes.
Usangu Wetland in July 2007
As you may know, the catchment area for the Great Ruaha River is in the
Usangu Plains, which is an extremely
important water resource for Tanzania. It feeds the hydro dams of Mtera
and Kidatu, plus being the focal point of Ruaha Park and supporting many
lives along its course to the Rufiji Delta. The Tanzanian Government has
to be congratulated for taking these difficult, but important steps in
conserving its precious water reserves.
However, this is only part of the problem, it is now more important than
ever to implement effective measures in curbing the massive over-use of
water which has seriously depleted the Ruahas flow during the wet
season and which completely destroys the river during the dry season.
I understand that there are plans in place to address this problem. I
wish the Government and the Stakeholders every success in this important
back to top
Great Ruaha River June 2008:
As you can see the river has dropped dramatically in the past 2 months. I estimate it to have dropped by about 5 feet. The depth at the deepest points in this section of the river on the 12th June, would be no more than 2 and a half to three feet deep. If you look at the final picture (F), though it looks like a lovely river right across, it is deceptive, you can see the colour of the sand showing through, indicating the river is generally very shallow. About 6 inches in most places.
A 1st June 2008
Ab 6th June 2008
B 12 June 2008
C 1st June 2008
D 6th June 2008
E 12th June 2008
F 12th June 2008
Please also compare carefully the 6 pictures, 2 of them were taken on the 1st of June (A,C), 2 on the 6th June (Ab,D) and the other 2 were taken on the 12th of June(B,E). You can see that in 12 short days the river has dropped by about 6 inches.
This means that more and more water is being channeled off daily for irrigation purposes.
Kind regards Sue
RUAHA RIVER Sept 19, 2008
I am happy to say that for this time of year the flow is looking better
than usual. The river is still flowing past the gate some 40km down
stream of these photos.
Let us hope that it continues to flow for another few months at this
level. Traditionally it is about this time of year that the river drops
drastically and stops flowing by the 1st of october. We shall see!
Kind regards Sue
back to top
RUAHA RIVER Feb-April 2009
This update on the Ruaha River is long over due, but I have been away.
As many of you know the Ruaha River was in a drastic state,it was
completely dry from OCTOBER 2008 right through to mid MARCH 2009. That
is five and a half months which is the longest dry period ever recorded.
It is true that generally, the rain in the immediate Ruaha park
catchment was extremely poor over much of the season. As a result many
of the small rivers such as the Jongomero,Itiku, Mdonya,etc only flooded
for very short periods, the water never reaching the Ruaha River.
Thus, the Ruaha River remained completely dry until
Mid March. At which point the rainfall in Ruaha Park catchment improved
a little giving the sand rivers enough to flood. thus the Ruaha was
'flowing' in short sections for only a few days at a time.
Finally the 'black water' from Usangu (Ihefu water) arrived
towards the end of March. Giving the river new life.
I would like to remind you that in the catchment proper,eg the rivers
flowing into the Usangu Basin, Mbarali, Ndembera, etc all of these
rivers and their upper catchment areas had extremely GOOD rainfall,
which was way ABOVE average.
These rivers were all flooding from Mid November right through to April.
That means that four and a half months of flood water from seven
rivers have largely been used by agriculture in
the Usangu basin.
Only in the final (5th) month of the rains did this
massive amount of water make its way down through the Giriama gap to
the Ruaha Park to the Mtera dam.
In normal years the flood water from Usangu reaches Ruaha Park in
February. (assuming that the rains start in mid December), Therefore,
please note that, as the rivers have been flooding since November the
water from Usangu should have reached Ruaha Park in Mid January this
year. But it didn't reach us until the END of MARCH.
23.02.2009 Upstream from River Lodge
23.02.2009 Downstream from river Lodge
I suspect we will see the same trend as last year, in that the river
will continue to drop fairly fast until it reaches a shallow trickle and
will stop altogether at the beginning of October when the rice growers
start planting their seedlings.
This year, Ruaha Park received very poor rainfall, as a result the
springs in the sand-rivers, and surrounding areas are mostly dry
already. Therefore, the animals will face a big problem later on in
the season. In fact, over the past few years due to the drying of the
river, game viewing has really deteriorated from the end of September
through to December. Previously, when the river was in better shape,
these dry months were Ruahas' prime game viewing months.
6th August 2009
Although the actual level does not look so dramatically different you
can see that the surrounding water in the channels in the foreground
and near the banks has dried up alot. Further down stream where the
river widens it is very obvious that the river has dried up quite
significantly in the past 4 weeks.
Kind regards, Sue
back to top
Great Ruaha River still flowing October 2009
We are all thrilled to tell you that not only is the river still flowing up at Jongomero, but there is still a trickle of water reaching the Lunda end of the park. We have not had water down to Lunda in October for 14 years. This is an historic year! The photos below show how the river looks at the moment.
The water flowing under the bridge as of the 20th October 2009
The water up at my old camp , (in the Jongomero area) some 50km up stream from the gate.
20th october 2009:- Flowing portion on left of rock .
Close up of flowing portion
Although the flow is not a torrent it is certainly what we have all been working towards. This indicates that preserving the wetland from thousands of cattle, and shifting some of the small scale farmers a marked difference has been achieved.
I find this incredibly encouraging. Considering that Ruaha Park received very poor rainfall this year, and that water off-take continues on a massive scale due to irrigation in the catchment area, it proves that it doesn’t take very much to improve the situation. Therefore, with more effort directed to proper management of these precious water reserves, the objective of ensuring that the flow of the GRR reaches the Mtera Dam will be realized. This would be a remarkable achievement for Tanzania.
I also attach photos of the river in August and September 2009. The depth and width of flow in the Lunda area was really encouraging. I do hope that this progress continues, ensuring water for future generations is ensuring a future for Tanzania. I would like to congratulate Ruaha National Park for its efforts, protecting the Usangu Wetland has not been an easy situation to administer.
Great Ruaha River December 2009
Great Ruaha river flowing in December 2009
Due to early rains the river was flowing well at the beginning of November. The Jongomero River had several good floods which cleaned out the old pools and assisted
the GRR to flow well past Msembe HQ and on down to Lunda. This was fantastic news for normally November is when the GRR is completely dry.
However, since the 21st of November the rain has stopped. But the good news is the river is still flowing past Msembe HQ, and attached is a photo of the river as it flows
under the bridge on December the 5th. You will see there are two channels flowing now. The photo I sent in October depicted only one channel flowing under the bridge,
therefore, despite the rain stopping, the river has improved slightly since October. To date the GRR has not stopped flowing this dry season. Let us hope the rain returns
Great Ruaha River February 2010
The river is looking really good, as you can see the water is ‘black’ which means the water from Usangu is flowing though already. According to Park Authorities the Usangu water started on the 24th January 2010. This is much earlier than usual, ‘normally’ it most often reached Ruaha the end of Feb to early March. The water in the river is usually at its highest mid March so we will wait and see what happens this year.
The stone marker in photo 1. indicates that the river still has a way to go before the stone is covered, which is the ‘normal’ highest flow we hope to expect each year.
The photos 3 and 4 from the gate show you that the river is flowing very well so far.
I will be most interested to see what happens during this dry season in 2010. Last year 2009 was historic in that the river through most of Ruaha park never dried up so....what can we hope for this year?!
back to top
Great Ruaha River July 31st 2010
The Ruaha River for 31st July 2010, is continuing to flow fairly well, though it is dropping fast.
In the pictures below, the first one depicts the river from my old camp on the 30th July 2010 and then the same place on the 5th August last year 2009. This is only 5 days later than those taken this year but you can clearly see that the river was substantially higher this time last year than it is now. If you compare the small rock in the water in front of the stone marker you will se that in the August 2009 photo it is barely visible.
The final photo was taken on the 31st July 2010 and depicts the width of the flow past Msembe Bandas at HQ. It is pretty shallow here, 30 cm deep for much of the width though the main flow channel is more than 60cm deep.
It can be seem from these photos that the river was flowing better this time last year. In fact I have just been examining the photos taken June 28th this year and they are not dissimilar from those taken in August last year, so I would say the river is approximately one month drier this year, so we will have to see if the flow continues through out the dry season as it did last year, at this present time it seems unlikely.
A GRR my camp July 30 2010
B GRR my camp July 30 2010
C GRR My camp 5th August 2009
D GRR My camp 5th August 2009
Msembe July 30th 2010
back to top
Great Ruaha River September 2010
The general flow of the Ruaha River through the western portion of the park (from Jongomero to the bridge (old Gate) is not too bad.
Last year it was quite a bit stronger, however, going by the past history of flow for this time of year it is about average to just above average.
The photos below were taken from the Bridge (old gate) on the 2nd September 2010. The actual flow is now reduced to the single channel depicted, however it is still strong and relatively deep.
Kind regards, Sue
Actual flow of Ruaha River at the bridge Sept 2nd 2010
Ruaha River at the bridge Sept 2nd 2010
back to top
The Ruaha river has stopped flowing.
The pictures below depict the river at my old camp which was just flowing on the first with a trickle of about 16 cm deep and 80 cm wide.
GRR Oct 1st 2010 old camp - actual width of flow only about 16cm deep.
GRR Oct 1st 2010 old camp -actual width of flow only about 16cm deep.
GRR Oct 2nd 2010 bridge - where the 2 tiny trickles join the deeper channel are just visible.
and then at the Bridge (old gate) on October the 1st. The flow here was miniscule, coming in from two tiny channels on either side of the deeper channel
GRR Oct 2nd 2010 bridge - showing the 2 tiny trickles flowing into the deeper channel
The river was just flowing at the bridge on the 1st October (if you look at the last 2 photos you will see this). But by the 3rd it has stopped at the bridge.
It is still just flowing at my old camp in the Jongomero area. but this will last only a few more days.
The marabou storks are feasting on the dying fish, that are now floating in many of the pools along the river making the water very unpalatable for the animals and aquatic life.
If you look back through my observations you will see that october the 1st is the 'traditional' date for the drying of the GRR. This is due to the fact that the rice growers up stream are beginning to flood their paddies in readiness for the rice seedlings. It has long ben my question as to why rice growers cannot defer their starting date to Dec 1st when the rain is more imminent.
Last year we had a major break through in that the river flowed all year without stopping, it was an historic occasion. I have heard some say this is due to good rainfall. However, one needs only to look through rainfall records to see that this is not so. I also heard a rumor that 2009 was not the only year that the river continued to flow, but this is 100% incorrect. I lived about 1 meter away from the GRR from 1994 till 2006 and during that time, (and until 2009), the river died up every single year.
The reason last year was so successful in terms of flow, was because sincere efforts were made to ensure correct usage of water in the irrigated areas up stream of the Ruaha Park were enforced.
We know now, that through proper management we can enjoy year round flow of the GRR through Ruaha Park, It is important to note that this is at NO detriment to the farmers up stream.
By sound management policies it is possible to keep all stakeholders happy.
Let us continue to strive for this
back to top
Ruaha River Water Level November 2010
The Ruaha River is a disaster!
What has happened to all that progress we made last year?
The state of the Ruaha River is shocking. It is the driest it has been since we had a drought in 2004/2005. The river looked like this in Januaray 2005 after the rains failed in December 2004.
Why is it looking like this at the end of November? It can only mean that the off take up stream has increased, and that little or no management of quotas have been observed.
This is extremely disappointing. Please can we all work together to improve this alarming state of affairs.
It is so easy to make things work for the benefit of the whole if we all pull our weight.
GRR Nov 2010 - from my old camp 1
GRR Nov 2010 - from my old camp
GRR Nov 2010 - from my old camp
back to top
Ruaha River Water Level April 2011
back to top
Ruaha River Water Level April 18 2011
The situation in the Ruaha Park has changed slightly over the last 4 days. To my relief some water has miraculously arrived from the Usangu swamp (Ihefu) It is not much but it will clear out the the very dirty water that has been stuck in the few remaining Hippo pools, however, I do not think that this water will reach the Mtera Dam. I don't expect this new flow will last more than a month or if we are lucky, two.
4 View from bridge old entrance gate February 2010
The photo above is the river in February 2010, how the river SHOULD look at this time. The photo below is the CURRENT situation, on April 18th 2011.
GRR from the bridge at the old entrance gate April 18th 2011
The water is extremely dark brown almost black which indicates that it has been sitting in the swamp for a very long time with no movement, or fresh inflow of new water. Therefore, the flow into Ihefu Is so far, very small, we will know if the flow increases if the colour of the water becomes lighter.
Return to Environment and Conservation Page
back to top