22- 34. and 34a
Two views of or ib
deposit was found
lI.ona ~ Utah.
1 9"2 2 •
• t head of MoDA Canyon wher e gr avel
to have t -CU"Io. en. a. s l ope of 12 per co •
Thi s is one of the forer unner s
vel oped in later years e
of the gravel barrier s de-
Bar r i er and spi llway bui l t by citi zens of t~ti
in stages . Thi s structure was begun i n 1891 as
a diver sion dam, and was carr i ed to gr eat er
height as necessity demanded . It served for a
time as a dive rs i on dam . l ater a new diver sion
was built l ower down st r oam, and this barr ier
was used solel y for the pu rpose of checki ng the
f l ow of gravel and boul der s dur ing flood periods .
This and a simi lar structure located near Mona
served &s the basis of gr ound work for the barr
ier system of f l ood control as it was later
devel oped .
Nephi , Utah .
Spring of 1933.
Sal t Creek Canyon Gro.vel Barrier.
The fi rst of the gravel barrie r s .
This struoture was built i n the raIl of 1922 f or t he pu r poso of
cheoking the drlf'ting gravel 1Ihich had becaue a menaoe t o the
oity of Nephi and to the farms served by the Nephi irr igation
system. Eac~ spring high water brought gravel out of the mountain
canyons i nto the oity streets of Nephi by way of the delivery
canals of t he irrigation system. In order to keep the
water in the canal s gravel was 8 c rap e~ onto t he streets until
mounds of it had been raised to the height of the top o f the
f irst story windows .
The spillway is 7 feet high to the o r est , with 5- foot wing
walls . BelOW' the spillway i s a out- off 0 1" check dam. to prevent
headward erosion of the stream as it reaches t he spillway structure
. This picture shows the stream in full act i on during
spring run- o Cf el even year s af'ter t he structure wa s fir st put
into operation . Maintenance expenses during the p eriod amounted
-.-... ' Nephi, Utah.
November 1922 .
Locat1on: Upper Barrier.
Spillway and barrier nearing completion . Final
touches being placed with a fresne l .
June 28 , 1928 .
Salt Creek Canyon .
Looking up stream at upper barrier spillway_
General rlew ot lower barrier and .pillway.
32-41 and 42
liar 4, 1932.
Building a "bea.ver dam" near intake to main canal
in order to check gravel flow brought into channel
by SUlIIIler fr •• hete the pr.noua season.
Clyde and Croft operating the air-11ft pump outfit testing
out the well west ot Filmore •
Filmore , utah.
July 1930 .
Chalk Creek, Willard County.
Spillway in flood control
successfUl operation .
barrier after 8 years of
Filmore , utah .
llay 1933 .
Chalk Creek f l ood control struoture in operation 8 yoars.
Kanosh, Utah .
1 9 2 3
Showing cri b spillway of cedar posts, pine ,
cotton wood, and boul ders at close of second
season of high water .
Note depth of water on apron of structure, a lso I note construction of break water On extreme right
In fore ground . Compare these with picture taken
In later years .
Panoram, Kanosh Barrier, after three seasons of
July 1925 .
Location; Gravel Control Barrier.
View showing gravel oontrol by means of wire fence and
brush. Note the several steps made in aocumulating the
deposit . This structure has been in process of construction
over a per iod of 4 years without having been
washed out ser iously. Note the upper line of fence is
just in process of being raised by means of Cedar boughs
placed above the net wire .
24 .. 59&
At Parowan. Utah, the gravel cleared trom the stream at high wa.ter
time, assumed the form of small mountains, and the stream .. bed was
built up until its bottom 'Was far above the l""el of the city
stroets just balow.
In 1925 a barrier and spillway was begun whioh has placed the
situation under control.
August 16, 1930.
Lower end of the barrier basin after six years of
3() - 7 1
August 16, J.930 .
of'flood control barrier from
south, looking toward town.
General view of barrier and shlppway showing
structure built in 1925 with side channel
spillway at right above which gravel is de posited
durlng spring freshets . At left is
new intake to canal system built by relief labor
during the winter or 1932 and 1933 .
The central part of Parowan and Little Salt
Lake in the distance .
Summit Creek, utah.
1 9 2 6.
Building & barrier spillway out of loga and boulders brought
down by summer floods, at Summit Creek, Utah, August. 1926 •
The finished structure after four years of successful operation.
Kanarrah, Utah .
Maroh 1933 .
Re lief Rolls workers building flood dam .
!.!arch 1933 .
alief Rolls workers building flood
roteot1on works . Carrying conrete
i nto wall.
33 - 108
March 1933 .
'Relief Rolls workers building a flood rellef
str ucture at Kana rrah . ( Good )
March 1933 .
View showing outlet through flood control dam .
Click tabs to swap between content that is broken into logical sections.