Tímarit Verkfræðingafélags Íslands - 01.05.1922, Blaðsíða 13

TÍMARIT V. F. í. 1922.
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of 2400 m and 1700 m respectively and two inner
moles. The southern mole will have to be built on
rocks which on the innermost 2150 m are dry at
low-tide — spring-tide high-water is at plus 4 m —.
It is therefore only on the last 250 m of this mole
that the depth is considerable (until 8 m at low-
tide), while the north mole will be on a consider-
ably larger depth of water. These moles will in the
inner harbour form a smaller, covered area with a
depth of water of 5—5 '/2 m at low-tide, and quite a
good-sized area with 3—5 m water.
It will be necessary to fill up a considerable area,
which will require much capital, but this will again
be realised by letting and selling the land recovered,
and the filling-up can be carried out gradually as
the need arises. On the map the filling-up is sketch-
ed to follow the 2 m iine, but can of course be
arranged as desired.
Mr. Krabbe states that he has made no detailed
calculations of the cost of the abovementioned con-
structions, as it would hardly be of any interest in
this connection to determine whether an amount of
10, 20 or 40 mill. Kroner would be required. It has
been his intention to point out that there is a great
possibility of making Sandgerði an important har-
bour, a possibility which should be carefully con-
sidered on the basis of the present soundings and
examinations when the time comes for carrying out
the proposals contained in this report.
9. H v a 1 s n e s. No harbour constructions can be
made here.
10. p ó r s h ö f n, a small creek on the north
side of the Ósar, is now an unimportant place, as
all trafic has been transferred to Kirkjuvogur
(see 11).
11. K i r k j u v 0 g u r, m a p V I. The large, al-
most square creek which is lying midway between
Reykjanes and Garðskagi has often been mentioned
at the chief fishing harbour on the Reykjanes
peninsula, and Mr. Kirk also mentions it in his
notes. The idea was that the entrance to the inner
part of the creek should be improved and covered,
thus forming an excellent harbour. The careful
soundings which have been taken now show,
however, that this is impossible, as the depth of
water in the inner part of the creek is so low that
it would become dry if the entrance was deepened
sufficiently to be navigable at falling tide. At pre-
cent the rocks are forming a bar in such a manner
that it is only possible for boats to enter when the
tide is rising. It is out of the question to deepen the
area inside this bar of rocks or to widen the en-
trance, as the bottom is lava covered with only a
thin layer of clay.
On the map is shown a stone jetty of 270 m from
Kotvogur to the rocks of „Kirkjusker“, which would
make the landing safer.
In continuation of this jetty a mole of 250 m
might be built, which would give cover for a larger
area, and allow loading and unloading of larger
vessels, but as the construction of such a mole
would have to be particularly strong on account of
the heavy seas, and as the covered area would be
neither large nor clear, and only in places have
more than 4 m water, the cost would be too high
in comparison with the advantages gained.
The jetty from the shore to „Kirkjusker“ will
cost about Kr. 210,000, and the mole from „Kirkju-
sker“ with a mole-head and a 30 m long landing-
bridge is estimated at Kr. 860,000.
12. Sandvík. The creek gives cover in eastern
storms, and the anchor-ground is good, but it would
not be possible to make any harbour constructions
here.
13. G r i n d a v í k, m a p VI. Grindavík is a com-
paratively large place with good fishing, but the
landing conditions are at present somewhat difficult,
especially during southern winds when there are
heavy seas in the open creek. It would be possible
to protect the landing-places by constructing a wall
of concrete (30 m long by 1,75 m wide, and 0,5 m
above high-water level) from the reef which stret-
ches out from „Akurhúsarif“ on the south-eastern
side. This wall would cost Kr. 10,000, and could
afterwards be prolonged and increased to make a
larger mole, which would give anchor-place for a
number of fairly large boats. This mole, which is
sketched on map VI, should be 360 m long, the
width at the top 4 m, and 6 m above low-water
level, inclining on the inside 1: 1, and on the out-
side 1: 2 and 1: 1 */2, built of large regulated stones
with a parapet of 1 m, and is estimated to cost
abt. Kr. 620,000, to which a sum of Kr. 100,000
must be added if a landing-bridge is required with
a railway on the mole. This would give a protected
area of 40 hectars with more than 2 m water, half
of which would be more than 4 m deep at low tide.
14. H e r d í s a r v í k. Harbour constructions are
out of the question here, as the bottom of the sea
just outside the place is full of rocks and large
stones. It would, however, be possible to improve
the landing by blowing up a reef which is 16 m long
by 2V2—4 m wide (23 cubic m) at the estimated
cost of abt. Kr. 11,000.
15. S e 1 v o g u r. The situation of this place is
so exposed, and the natural conditions so unfavour-
able that it would not be advisable to carry out
any harbour constructions here.
16. porlákshöfn, m a p VII. The construc-
tions shown on map VII consist of two moles, 850