S220112-1XR - 215 Olympic Ave - COMPLIANCE REPORT (7-13-23) (1)1 of 8
LONGITUDE
ONE TWENTY°
ENGINEERING & DESIGN
Pile Review for Structural Compliance
Date: July 13, 2023
Project Name: 215 Olympic Ave- Foundation Stabilization Effort L120 Project #: S220112-1XR
Project Location: 215 Olympic Ave, Edmonds, WA 98020
Client's Name: R&R Foundation Specialist, LLC
To whom it may concern,
The purpose of this letter is to confirm helical installation and capacity compliance with the structural
requirements specified in the L120 Structural Calculation Package and Structural Site & Foundation Plan dated
March 25, 2022.
On July 20, 2022, fourteen (14) helical piles and one (1) concentric pile were installed by R&R Foundation
Specialists (R&R) to lift the residence for 215 Olympic Ave, Edmonds, WA 98020. Piles were installed with a DIGGA
6K and DIGGA 10k drive head to a maximum depth of 13ft. To the knowledge of L120, these piles were installed by
R&R certified installers in accordance with the cited structural package, ESR-4121, and ESR-3750. Please refer to
the attached drive log provided by R&R.
With pile spacing at a maximum of 8'-0" on -center at the exterior, the minimum required vertical capacity as
determined by L120 was an allowable loading of 13kips per pile. These demand requirements are as determined
and specified in L120's structural calculation package cited above.
As required by the referenced structural package, proof testing was to be performed to 200 percent of the
specified design load. It is L120's understanding that the installers utilized the dead weight of the existing structure
to achieve the required reaction of a test pile.
Pile capacities for, Ideal Manufacturing, Inc., helical piles have been calculated utilizing the torque correlation
factors provided in ESR-3750. A toque/capacity chart detailing this calculation has been attached to this letter. Per
the attached document, an Ideal Foundation Systems 2-7/8 in diameter helical pile installed to a minimum
pressure of 1,500psi results in an installation torque of 5,520 ft-lbs and an allowable capacity of 23.3 kips including
a safety factor of 2.
Pile capacities for Stabil-loc piles have been calculated utilizing the torque correlation factors provided in ESR-
4121. A toque/capacity chart detailing this calculation has been attached to this letter. Per the attached document,
an Ideal Foundation Systems 2-7/8 in diameter Stabil-loc pile installed to a minimum pressure of 5,100psi results in
an allowable capacity of 13 kips including a safety factor of 2.
The results are summarized below:
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Helical Piles 1-5,7-10:
Maximum Demand (allowable) = 13.0 kips/pile
Available Capacity (allowable) = 23.5 kips/pile
Driven Piles:
Maximum Demand (allowable) = 13.0 kips/pile
Available Capacity (allowable) = 13.0 kips/pile
By inspection, the pile capacities of the installed helical piles exceed the maximum loading demand as determined
by L120's analysis. Therefore, the installed piles comply with the structural design/demand.
Please contact us if you have any questions.
Sincerely,
Nic Jones
Project Engineer
L120 Engineering & Design (L120)
niones@1120engineering.com
•♦•S� T HURT •♦
♦ Cc I F: • ��+r
♦• S�CNAL�N.r
MAns R. Thurfjell, P.E
L120 Engineering & Design (L120)
mthurfiell@1120engineering.com
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Customer Info: Michael Hall
Address: 215 Olympic Ave, Edmonds, Wa
Ideal Pier Data
r �-�a
o
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Wednesday, October 13, 2021
SCOPE OF WORK
FOUNDATION
Crew will install 3" Helical Piles with 6" Steel Channel, 3" Stabil-Loc Pier, as well as 4x4 Post Bases with Pads, and lift home to
maximum practical recovery. Carew will drive piles to a maximum 1b" atter there will be a ,�2u a toot cnarge per pile.
L120 is in concurrence with pile layout recommended by R&R provided that the proposed layout is followed as marked and that
a maximum pile spacing of 8'-0"o.c. with the use of C6x8.2 steel channels spanning from pile to pile, is achieved. Ref. SSK-01,
SSK-02 and SSK-001.
NOTES:
1. It is acceptable to install piles at the spacing shown with ± 0'-6" tolerance to allow for unexpected obstructions encountered
during pile installation provided that no two adjacent spans exceed the spacing limitation of 8'-0"o.c.
2. End piles are to be placed as close to corners as possible and shall not exceed a maximum corner distance of 3'-0" as
marked.
3. Supplemental steel to be anchored to concrete with 5/8" diam Simpson Titen HD screw anchors @ 12"oc with a 4" minimum
embedment. Refer to attached SSK-03.
LUUA I E FILE
WITHIN 2FT MAX
OF CORNER
LOCATE PILE
WITHIN 3FT MAX -
OF CORNER
(3) PILE'S @ 8'-0" O.C. MAX
Deck a, /
5 �}
n 3
-3 2
—. 4
(6) PILES @ 8'-0" O.C. MAX
3
PILES @ 8'-0" O.C. MAX
LOCATE PILE
WITHIN 2FT MAX
1 OF CORNER
1/
LOCATE PILES ON
EACH CORNER OF
WINDOW
2 5011 6 -4 1/ 1 (2) PILES @ 8'-0" O.C. MAX
3 M = Existing Post
rn
a -' = 3" Helical Pile
_1
2 1 /4 14 � = 3" Stabil-Loc Pier
-2 5/8 -1 3/4 4 t
® with PP Base
1 3/4 NACrack
LOCATE PILE
WITHIN 1FT MAX
-1 1/2 OF CORNER
5' -1 5/8 25'
2
1 3/4LOCATE (1)
PILE
APROX4'-0" N
1 FROM WEB/8
WALL
4' — 28'
1
5/8 IE4 114 II -5
-2
0
N N
LEVEL -
47'
11
NOTE: 1-120's scope is limited to the perimeter support systems/continuous footings of the primary structure. All
stabilization and replacement efforts of exterior decks and deck supporting elements are outside of 1-120's contract and
scope and are not addressed in this package. - L120
5 of 8
LONGITUDE
ONE TWENTYO
ENGINEERING & DESIGN
PROJECT
PROJECT NO. SHEET NO.
S220112-1
215 Olympic Ave, Edmonds, WA 98020
SUBJECT Ideal Helical Pile Installation Chart
BY NJ
DATE 3/25/22
Ideal Foundation Systems 2-7/8"0
*
Helical Pile (0.203-inch wall thickness) -Soil Capacity
per ESR-3750
DIGGA lOK Drive
Head Pressure
(Psi)
Torque,
T
(�*Ibs)
Torque Correlation Factor,
K, [Compression]
(ft 1)
Ultimate Axial Compressive Capacity,
P„ = K,*T
(kips)
Allowable Axial Compressive Capacity,
Pa = 0.5*P„
(kips)
500
1,740
9
15.7
7.8
600
2,088
9
18.8
9.4
700
2,436
9
21.9
11.0
800
2,784
9
25.1
12.5
900
3,132
9
28.2
14.1
1000
3,480
9
31.3
15.7
1100
3,828
9
34.5
17.2
1200
4,176
9
37.6
18.8
1300
4,524
9
40.7
20.4
1400
4,872
9
43.8
21.9
1500
5,220
9
47.0
23.5
1600
5,568
9
50.1
25.1
1700
5,916
9
53.2
26.6
1800
6,264
9
56.4
28.2
1900
6,612
9
59.5
29.8
L120 ENGINEERING &DESIGN
6 of 8
LONGITUDE
ONE TWENTYO
ENGINEERING & DESIGN
PROJECT
PROJECT NO. SHEET NO.
S220112-1
215 Olympic Ave, Edmonds, WA 98020
SUBJECT Stabil-Loc Concentric Pile Installation Chart
BY NJ
DATE 3/25/22
Stabil-Loc 2-7/8"0 Concentric Pier -Soil Capacity
i.) Power Team C25C Hydraulic Cylinder effective cylinder area has from manufacturer cut sheets
ii.) Piles shall reach a pressure that correlates with an allowable capacity that meets or exceeds the maximum allowable load
demand as listed in the structural package, but shall not exceed the maximum allowable capacity for any part of the pile
assembly.
III.) Referto ESR-4121 and Stabil-Loc, Inc. documents for additional information and requirements.
iv.) 1 kip =1,000 Ibs
per by Installation Pressure
Po��✓erTeam C25C
Hydraulic Cylinder
Pressure, p
(psi)
Cylinder Effective Area, A
(in')
Ultimate Axial Compressive
Capacity, P. = p'A
(kips)
Allowable Axial Compressive
Capacity, P, = 0.5`P„
(kips)
1,000
5.15
5.2
2.6
1,500
5.15
7.7
3.9
2,000
5.15
10.3
5.2
2,500
5.15
12.9
6.4
3,000
5.15
15.5
7.7
3,500
5.15
13.0
9.0
4,000
5.15
20.6
10.3
4,500
5.15
23.2
11.6
5,000
5.15
25.8
12.9
5,500
5.15
28.3
14.2
6,000
5.15
30.9
15.5
6,500
5.15
33.5
16.7
7,000
5.15
36.1
18.0
7,500
5.15
38.6
19.3
3,000
5.15
41.2
20.6
3,500
5.15
43.8
21.9
9,000
5.15
46.4
23.2
9,500
5.15
48.9
24.5
L120 ENGINEERING &DESIGN
MM-10K MOUNTS
AVAILABLE TO SUIT
STAND ON MINI
MACHINES AND MINI
EXCAVATORS UP TO 3.5T
Lightweight hand-held screw anchor drive for the installation of screw
piles in confined or low access sites such as crawl spaces. This unit can be
powered by portable hydraulic power packs.
FEATURES
• Compact high torque Digga manufactured gearbox
• Lightweight and compact for ease of movement in confined spaces
• Fitted with a high efficiency Eaton/Digga geroler hydraulic motor
• Motor mounted pressure relief valve fitted standard (HH-6K)
• Over 34 years design and manufacturing experience
• 1 yr gearbox and 1 yr motor warranty
SPECIFICATIONS
MODEL
HH-6K
MM-10K
Theoretical Torque (ft-Ibs)
6,528 @ 2,100psi
10,478 @ 3,000psi
Expected Torque (ft-Ibs)
p q
4,765 @ 2,100psi
8,040 @ 3,000psi
(73%efficiency)
(77%efficiency)
Max Pressure
2,100psi @ 11 gpm
3,000psi @ 18.5gpm
Max Flow
15gpm @ 2300psi
18.5gpm @ 3000psi
Max Horse Power
20
33
Pressure Relief Valve
Included
NA
Standard Output Shaft
2" Hex
2.5" Hex -Short
Weight (Ibs)
90
138
Overall Length (in)
20"
24.1"
Diameter (in)
9.5"
11.4"
HH-6K Hand-held unit is not suitable for machine
mounting. Warranty void if used on machines.
OUTPUT SPEED &TORQUE
HH-6K
OUTPUT SPEED
GPM RPM
7 7
8 8
9 9
10 10
12 12
13 13
14 14
15 15
OUTPUTTORQUE
PSI FT-LBS
500 1,554
750 2,331
1,000 3,108
1,250 3,886
1,500 4,663
1,750 5,440
2,000 6,217
2,100 6,528
MM-10K
OUTPUT SPEED
GPM RPM
7 6
8 7
9 8
10 9
11 10
12 11
13 11
14 12
15 13
16 14
17 15
18 16
OUTPUTTORQUE
PSI FT-LBS
500 1,746
1,000 3,493
1,500 5,239
2,000 6,985
2,500 8,732
3,000 10,478
Output speed and torque specifications are THEORETICAL. Speed and torque output are dependent on the overall system efficiencies associated with the prime movers hydraulic system.
This document should be used for information and comparative purposes only. When determining criteria, & application specific information is required, please contact DIGGA.
8 of 8
Digga - Speed & Torque Chart
Model Code: MM - IOK
GF: 262
rpm vs Ipm
20
a 15 00
6 10
v
°J 5
a
N
0
0 20 40 60 80
Flow rate (Ipm)
Max. Flow (Ipm) 70
Max. Speed (rpm) 16
Output Torque
Differential
Pressure
Display
Nm
Bar
2,360
34
2,832
41
3,303
48
3,775
55
4,247
62
4,719
69
5,191
76
5,663
83
6,135
90
6,607
7,079
97
103
7,551
110
8,023
117
8,495
124
8,967
131
9,438
138
9,910
145
10,382
152
10,854
159
11,326
166
11,798
172
12,270
179
12,742
186
13,214
193
13,686
200
14,158
207
(7 7E)jr-
rpm vs gpm
20
u 15
10 -
v
°1 5 -
a
Vf
0 -
0 5 10 15
Flow rate (gpm)
20
Max. Flow (gpm)
18
Max. Speed (rpm)
16
Differential
Pressure
Display
Output Torque
PSI
Ibf-ft
500
1,740
600
2,088
700
2,437
800
2,785
900
3,133
1,000
3,481
1,100
3,829
1,200
4,177
1,300
4,525
1,400
4.873
1,500
5,221
1,600
5,569
1,700
5,917
1,800
6,265
1,900
6,613
2,000
6,961
2,100
7,310
2,200
7,658
2,300
8,006
2,400
8,354
2,500
8,702
2,600
9,050
2,700
9,398
2,800
9,746
2,900
10,094
3,000
10,442
" IMPORTANT: This chart is based on theoretical values and is provided as a guide only. Digga accepts no
responsibility complying with any installation requiring certain torques being reached. You will need to consult an
engineer.