The Morning Tulsa daily world. [volume] (Tulsa, Okla.) 1919-1927, 1922-03-04

for under those specifications. and
he shall decide an questions which
may arise relative to the execution
on the part ~ the contractor Of his
contract covering the s1me, and
such estimates ana decision NJ the
city engineer shalt bo final and cou-
elusive.
1T boz q question whether ln this
case the term 'shalo' iH 10 ho con.
strucd iu 20 strict geological sense or
whether Hh1loq Of sufficient hard
ness may lo classified ns solid rick.
ag is frequently done u engineering
practice. The board is muNiuv its
classification ~ materials disr6
l1rdcd thin ahalc strata in beds ~
solid tuudaiouc, for the reason th1t
such material be practically as dlfn.
cult tp oNuIpatc az solid rock, hut
shaic strata OF eight inches or moro
bon thickness between solid rock
strata were classified as shalc'
Whnt the Engineer Did.
The accompanying table, cNhlhl'
n, shows considerable dlffcrcuccs
between the determination OF tho
engineer In charge OF thia work ana
/ the finding of this hoard. Some OF
/ those differences can bo accounted
l fJr n appears that the engineer
u
sh1lo Hg solid rock when embedded
/ between solid rock strata. whorpa,
/ this board has classified such ma.
/ tori3Is Hs solid rock or shulo. de-.
/ pending ON the thickness, ass OK
] planned above.
In tho northwest portion OF th,
. district in Cherokee heights. th,T,
/ ls thick bed Of 'sunpHtuucf s,
onll,d. - ls O. homogeneous ahalo
. having tho appearance Of mudatuu,
/ when fractured and o. Fhiuy uT Foapi
/ appCarouc" when cut. This matcrin
was classified by the engineer if
! charge a9 solid rock ana by thu
board As shalo.
IN some instances, notably iu On,
] alley Of block 4. cast Highland nd
dition, we found clay where aDll,
rock and shalc are shown in IN,
notes Of tho engineer who Classlfic,
the materials.
"Tho board has made nu Cstlmut,
of quantities ~ excavation, base,
ON the classification shown by tn
test pits. This ostimuto is nm,
should be considered as only roughl.
approximate"
Estimate Of Quantities.
This estimate showed: Tho city
engineer classified 1G,5f3 cubi
] NNlu NNl tue Iilti'lltl hN ENlIl ltik
the board estimated that ont
7.i5S cubic yards was solid rock
They estimated that asa yards o
material WAS shalo or loose rock
whereas the cltya engineer hn
classified 1887 yards under thi
head. Finally they found that IL,
32t yards should have been TcgHrdc
ne earth whilc tho city's enginec
hHd placed lO,5S2 wards under thi
Class.
'1f the soapstonc excavation en-
countcrcd In Cherokee heights
changed to solid rock, aa Classifie
by the city's engineer, the above e'
innate would appear "a follows
S,32g yards of rock. 1910 yards {
, Hhale and 1881 yards OF earth" IN
: report says.
"Uislng the first estimate OF quar-
titles and applying the unit pric,
paid the contractor tho total cost (
; the work would be reduced by St3
500. ON the basis OF classifying IN
3 soapstOne above referred 60 as rocl
the total cost of the work would /
reduced by siO.5OO.
THE specifications stlpulnte thi
all excavation shall be computed q
the baels of n trench AZ inches wild
hut nothing appears in thcm requi
, lnk lHN fuHllutipf 10 fA'iNult
that width, As matter OF fact. u
, trench was actually excavatcd 20 q
' approximate average width OF
v inches,
Boards Recommendation.
This board IL OF tho opinion IN
y controversies, similar to the one N
. der consideration, will occur Just
0 long as construction contracts a
o awarded and work constructed ,
0 the basis OF insufficient prelimina
B surveys and indefinite specification
0 The engineer has undertaken to Gu
D the defect OF indefinite specific
0 tlons. and is to be commended {
b IL, but until his office * given
3 organization sufficient to piCpaI
l proper preliminary surveys and
l enable him TO give some person
0 attention TO matters Rs important
the item OF classification In this ca,
such controversies will continue
embarrass the city officials ana eau
r honest differences OF opinion on {
| part Of the taxpayers"
' Signed by