Tímarit Verkfræðingafélags Íslands - 01.05.1922, Side 16

38
TlMARIT V. F. 1. 1922.
protected on the south eastern side by regulated
stones. On the rock should be placed a circular
block of reinforced concrete. The cost is estimated
at about Kr. 27,000.
IV. The North Coast.
3 0. Raufarhöfn, map XII. The harbour is
very good, and can be made still better at a com-
paratively small cost. On plan XII is shown a jetty
constructed so as to close the sound between „Hólm-
inn“ and ,,Höfðinn“, and further a mole of about
75 m from „Hólminn“ in a south-western direction,
which would give complete cover for the whole area
of the harbour. The harbour is rather shallow, but
the examinations of the bottom have shown that it
would be possible to deepen the greater part of
the harbour from abt. 1/2—1 m, thus obtaining a
depth of over 3 m at low-water on a fairly large
area, which would make it possible together with
the constructions mentioned above for somewhat
larger craft to make use of the harbour. As the
harbour has at present a large area with a depth
of 4 m, it would not be necessary to deepen the
harbour before the mentioned cover has been built.
The harbour would be important as a harbour of
refuge, as there is no other really safe place on
this part of the north coast in rough weather.
The cost of the constructions mentioned above
is estimated as follows:
jetty out to „Hólminn“.................Kr. 25,000
mole from „Hólminn“ towai'ds south
west with mole-head and lighthouse
about 75 m long........................— 120,000
total Kr. 145,000
to which much be added the cost of
deepening 15 hectars until 3—5 m
depth...............................Kr. 600,000
3 1. Kópasker, map XIII. This place is not
of great importance, but it has possibilities as a
trading-station for the surrounding country and as
basis for the fishing. The natural conditions are
not bad, but a landing-bridge would be required. It
would be natural to build this bridge out from the
rock of „Kópasker“ on the northern side of the
creek, as „Kópasker", which is above the high-
water line, can be connected with the shore by a
jetty of about 40 m length. The bridge would then
be built on the southern side in a south-eastern
direction.
As shown with dotted lines on map XIII a mole
of 570 m could be constructed to create a protected
area for the harbour (depth until 4 m), for which
purpose it would be necessary to build the jetty
from „Kópasker“ to the shore in such a manner
that it can be included in this mole. The cost of
the mole is estimated at about Kr. 500,000.
3 2. T j ö r n e s. Mr. Kirk visited this place only
to examine the coal mines, and there is no question
of making any harbour constructions here.
3 3. Dalvík, map XIV. Dalvík is very ex-
posed during northern and north-eastern storms,
but as the depth increases very quickly from the
shore any harbour constructions that could be made
here would be too costly compared with the advan-
tages gained thereby.
3 4. Ólafsfjörður, map XIII. This place
is a trading-station, also a base for a fairly im-
portant fishing. The natural conditions are very
difficult, as the firth is broad and open, quite un-
protected on the north-eastern side, and is more-
over sometimes filled with floating-ice during the
spring. A strong boat-bridge is badly needed, but
it is very questionable whether such a bridge can
be built solidly enough to resist the ice without a
protecting mole. The bridge shown on map XIII is
constructed of timber frames íilled with stone, 60
m long, 1,6 m depth at the outer end, and is esti-
mated to cost about Kr. 75,000. A mole as shown
on the map — 6 m wide at the top, 160 m long,
protected on the outside by blocks of 10—15 tons —
will cost about Kr. 600,000.
3 5. II o f s ó s. Hofsós is lying on the eastern
side of the Skaga-Firth, very open towards north
and north-west. The conditions are unfavourable,
and constructions would be very costly. It would
therefore not be justified under present circum-
stances to build a harbour here.
3 6. S a u ð á r k r ó k u r, m a p XIV, is a fair-
sized trading-station at the head of the Skaga-Firth.
The harbour is quite unprotected on the noi'thern
and north-eastern side, and as the creek were the
town is lying is rather shallow, heavy surf — even
under otherwise quiet conditions — often prevents
connection between the vessels and the shore.
During later years it has been found that the
northern side of the creek is being gradually cut
away, while the creek itself is being sanded up,
and the depth decreasing. To protect the harbour
against this, the inhabitants are building a break-
water, which by-and-by when it reaches out to
about 6 m depth will give such good protection for
the creek that it will be possible to prolong the
existing boat-bridge with a bridge-head of 10 by
40 m at 5 m water.
3 7. Kálfshamarsvík. The natural condi-
tions are not favourable, and as the next place,
Skagaströnd, mentioned under 38, also lying on the
eastern side of the Ilúna bay south of Kálfshamars-