Table 12
Kennebunk River Jetties
Kennebunk, Maine
Date(
Construction and Rehabilitation History
The history of the jetties dates back many years prior to 1829 when
the Federal government made its first appropriation for repair of the
wooden piers built by local interests to protect the river entrance.
Subsequent enactments provided funds to repair these structures, and
during the period 1829-52 granite piers were erected at the en-
trance. The west jetty was completed in 1871 to dimensions of 160 ft
for the wing wall and 290
for the main trunk. The east jetty is
ft long and has a 232-ft wing wall at its landward end (Fig-
ure 13). The structures consisted of regularly shaped cut stone
to vertical. Top elevations on the east and
slopes varied from
mlw and +13 ft mlw
west jetties were +16 to +17
ft mlw on
pier at seaward end), respectively. The top one or two rows of stone
were held together with steel dowels. Width of the top row of stones
varied from 2 to 6 ft. The jetties, spaced about 250 ft apart, con-
verge slightly in the seaward direction with the east jetty approxi-
ft farther seaward. Stone piers of similar construction
mately
were placed at the seaward ends of the jetties. The piers were
square shaped in plan view and two to three times larger in cross
section. Apparently, the jetties were repaired in the early
Other repair work may have been completed between 1895 and
1930.
The east jetty was repaired by resetting 300 tons of wall stone,
1931
placing 212 tons of rubble stone, placing 165 cu yd of concrete, and
adding 50 iron pins to the capstone for a total cost of ,000.
The jetties were repaired by resetting 85 tons of wall stone, placing
1935
504 tons of rubble stone, and placing 20 cu yd of concrete for a
total cost of ,800.
Three sections of the east jetty, totaling 59
ft, were repaired
1954
by replacing stone to the general dimensions of adjacent undamaged
sections of the jetty. Cost of the repairs was ,400.
The jetties were repaired by resetting stone and placing concrete at
1962
several locations, and a stone berm was placed around the west jetty
stone pier. The repair sections were typically 1 to 8 cu yd in
volume. The stone berm around the west jetty head was placed to an
elevation of +12 ft mlw and a
side slope, and it consisted of
stone weighing a minimum of 2 tons. Total cost of the repairs was
,900.
(Continued)
27
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