HomeMy WebLinkAboutORTH Project A12121-5
J~i/y 24, 1974
Project A12121-5
Hewitt V. Lounsbury & Associates
723 Sixth Avenue
Anchorage, Alaska 99501
Attention : Mr. Allan Scheen
Gentlemen:
Test Pit Excavations
Proposed Orth Subdivision
Birch Road
Anchorage, Alaska
At your reqllest, the undersigned inspected the subject excavations and
logged the vertical soil profile on J~le 11, 1974. ~le location of
test pits have been surveyed by you and the locations are shown in
Figure 1. R~e soil profiles at each test pit location are respectively
shown in Figures 2 through 7, inclusive.
The soils were visually classified and absorption values have been as-
signed accordingly based on written guidelines of the Greater Anchorage
Area Borough and our experience.. The absorbtion values for each
identifiable layer are given in parentheses an an averaged weighted
value given in the right hand margin of the log.
It should be noted 'that the soils are classified at the respective pit
locations only and 'Lhat significant horizontal variations should be
anticipated. ~lkrthermore, due to the somewhat marginal conditions
encountered, each i leaching area should be evaluated iLndividually once
building t~;ation and other appurtences are known.
Free ground water ~as not encountered in any of the pits at t_ime of
excavation. The depth of free ground water is quite variable in this
area and is not defineable in the recently published USGS "Water Table
Contour Map" of Anchorage, Based on information provided by Mr, Orth,
the pre-drawdow/1 level of his well (located on Lot 7) is at a depth
greater than 20 feet below present grade at that location.
OAKLAND SAN JOSE .SAN FRANCISCO ANCI-tONAGE, AI_ASI(A
Page 2
Mr. Allan Schee~
July 24, 1974
Furthermore, no water was observed in %he pits a% the lower elexrations
or in the d~?ainage ditch on the south edge of the property.
If you have any questions, please call.
RPK:pb
Very truly yours,
~DODWARD-LUNDGREN & AS SOC IATES
Chief Engineer
5cc Addressee
Attachments
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CONSULTING ENGINEEI'I8 AND GEOLOGISTS
6361 NI-'ILSON WAY - SUITE 200 -
ANCHORAGE, At. ASKA 99502
)epth of Boring: /zj Number of Samples:
)ate Drilled: C./~,/V$ Hammer Weight:
~ E ~ DESCRIPTION
Surface Elevafion: Fro.t Depth~ ft.:
O~
Project: .... L o g o [3
Depth of Boring: ,./~-~ ' Number of Samples:
Date Drilled: ~-""."'~'~ ltammer Weight:
Type of Boring: ;~,~ V~v~ Remarks:
TAI E lo~ I
)5-
20-
J
DESCRIPTION
Surf(ice Elavo~ion:
Froot
'O
cd
JobNo. z~ l~l:,'-A~ WOODWARD-[UNDGREN & ASSOCIATES Figure
Project:
bate D~'il led;
c o ~5
I
I
j WOODWARD.-LUNDGREN a ASSOCIATES.
Project: c2~-~x/ Z~.z>r,~.~:;z. L o g o B o r i n g N o, ~
Depth of Boring;
[)ate Drilled;_
Type of Boring:
Number of Samples;
Hammer Weight;
Remarks: ~/~o~ _~ ~'
DESCRIPTION
Surface Elevafion:
JobNo. /f(/~/~_/__~] WOODWARD-LUNDGRI~N & ASSOCIATES I Figure
Depth of Boring:. /O~ Number of Samples:
Date Drilled: ~/~ ~ Ita.~er Weight:
Type of Boring:~~ Remarks: ~oT I -
Surface Elevation'. Fro~t Depth~ ft.:
~rojoct: ~D~T~/~f~7~i~r~q/J Lo g o ~ B o r i n g N o.
)epth of Boring: (O~ . Number of Samples:
)ate Drilled: ~/,,/7~ 'Ha~er Weight:
0--
5--
5--
NO. i
~ 2
x = ~4o,
2%¸
NOTES:
SUBDIVISION
A BUBBIV[SION OF THE
NW '1/4. NN 1/4, SW 1/4, SECTION t4
TI2N~ R3N. S*N.', RLRS~R
HEHITT V. LQU;N~3URY & RSSOCIRTES
NO1
7
SUB D . .
6
5
DED
3
NOTES:
TI2N. R3N, S.H.~