Albaine Engineering Correspondence (03141748xA119E)

J.M. ALBAINE ENGINEERING, LLC
14 Lincoln Road, Waterford, CT 06385
Phone & Fax: 860-439-1111 Mobile: 860-705-1631
Email: jma724@snet.net
[ENGINEERING |
February 5, 2011
Mr. Mark Shenking
Chief of Fire Station
Oswegatchie Fire Station
441 Boston Post Road
Waterford, CT 06385
RE:
Update on Structural Shoring for Damaged Roof Section
Ref. Drawings:
JM Albaine Engineering, Dwgs S-1 to S-6 dated 10/25/10
Dwgs. S-6, S-7 rev. 1, (DCN #1) dated 01/26/11
Project # JMA10-327-06
Dear Mark,
| visited the site on February 4 for an inspection of the on-going work, and to meet with the
foreman for Noble Construction, John, and go over some issues that have came up during
the implementation of the shoring. Herein is a summary of our meeting (see new DCN #2,
drawings # DC2-1, and DC2-2, dated 2/05/11):
1. All the shoring in the Apparatus Room has been constructed in accordance with our
specification and drawings referenced above.
Columns P7, P8, & P9 in the Dispatcher Room and surround areas will be
supported on existing foundations, eliminating the need to carry them down one
more level.
The temporary beams supporting the exterior edges of the roof, at both above the
Hall Room and Kitchen (second floor, see Sections A, B, & C (Dwgs S-2, S-3 and S-
4) will be installed at a lower elevation, with a short double stud (one king and one
jack) above it, to make room for the potential installation of the future new ceiling
joist.
The new temporary roof supporting beams over the first floor Day Room and
Kitchen will need to be increased to triple LVL’s from double LVL’s since we will
need to cantilever those beams at each end of the room to avoid additional
expensive work on the exiting features in the these rooms.
Most of the ceiling has been removed, and the condition of the roof framing exposed
so far is considered dismal, especially in the area where the two roofs intersect, and
at the flat section of the adjacent roof. We discussed the need for current work to
be done very careful in this area to avoid the possibility of any potential partial

Page 2
collapse that may cause injury to the workers. Once the temporary shoring is
installed, this whole area will need to be surveyed completely to determine the
actual framing condition for the future repair.
6. We looked at the roof area right above the Kitchen at the second floor, and some
column relocation may be required, as we are trying to minimize the work around
the ceiling over the Kitchen.
The new changes proposed on this report are done for the purpose to minimize the
amount of disruption on existing features, and to ease the installation of the future roof
reinforcement framing. As more area becomes accessible we expect additional adjustment
to the design drawings.
If you have any questions or desire further information regarding this update report, please
contact me at your convenience.
Respectfully submitted,
Jose-Miguel Albaine, M.S., P.E.
Structural Engineer
cc. Robert Avena
Frank Hoagland
Steve Cardelle
Rocco Braciaelli
Ed Noble

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J.M. ALBAINE ENGINEERING, LLC
14 Lincoln Road, Waterford, CT 06385
Phone & Fax: 860-439-1111 Mobile: 860-705-1631
Email: jma724@snet.net
[ENGINEERING |
March 6, 2011
Mr. Mark Shenking
Chief of Fire Station
Oswegatchie Fire Station
441 Boston Post Road
Waterford, CT 06385
RE: Structural Shoring for Damaged Roof Section
Ref. Drawings:
JM Albaine Engineering, Dwgs S-1 to S-6 dated 10/25/10
As-built Dwgs. S-1 to S-8, dated March 5, 2011 Rev. 2
Project # JMA10-327-06
Dear Mark,
On February 26 and March 5, 2011, | conducted the final inspection of the installed shoring
frame work. | have attached the revised As-built drawings (S1 to S-8) showing the final
shoring installation.
We also observed that the exterior North wall has a bow (outward displacement at the top
of wall) of approximately 3”, with the East and West exhibiting bow in the order of 2” or
more. Here are a couple of options deemed to provide a practical repair in term of
construction, economics, and long term performance.
OPTION “A”
Reinforce existing roof in place as shown on Dwg. S-5. This option will not remove the
current deflection (sag) on the ridge, but it will provide a strong roof capable of resisting the
current building code load requirement. The “roof “sag” will not be noticeable from the
inside as the new inside ceiling finish will be plumb and straight.
Note that this is a conceptual design and that more analysis is required to develop the final
design reinforcement to fit the existing condition.
OPTION “B”
Remove the entire roof frame from both affected buildings, and provide temporary support
in the areas where adjacent roof abut the affected roof.
Under this option two paths may be followed:

Page 2
1. Rebuilt a new roof framework using conventional “stick framing” and/or
engineering lumber where required, and adjusting the configuration to conform to
the bowed exterior supporting walls.
2. Installed a new system of prefabricated metal connected wood trusses, in which
case we'll recommend that all the exterior walls be replaced with new 2 x 6 walls.
In all cases, we recommend that the upper exterior wall be either reinforced (Option A &
Option B, case 1), or completely replaced (Option B, case 2), since the structural integrity
of these walls have been seriously compromised by the large thrust (lateral) forces from the
roof framing vertical downward displacement.
For the two lower bearing exterior walls (East & West walls) housing the Apparatus Room,
we recommend that there walls be repaired and reinforced as well, since the sill plates at
the floor level shows advanced degree of deterioration.
Please note that the installed temporary shoring served the function of stabilizing the roof to
prevent a sudden roof collapse. The shoring are designed to provide a safe working
area/platform during the projected work to repair or replace the roof; this framework has
been designed for temporary application as other elements such as the exterior walls are
subject to local or global failure (such as from high wind pressure or suction induced by
hurricane forces).
We will work with Noble Construction to develop an estimate of the construction cost for the
options described in this report. We strongly recommend that work proceeds expediently
since the installed shoring are only designed for temporary application.
If you have any questions or desire further information regarding this report, please contact
me at your convenience.
Respectfully submitted,
& -~ fit} .
Jose-Miguel Albaine, M.S., P.E.
Structural Engineer
cc. Robert Avena
Frank Hoagland
Steve Cardelle
Rocco Braciaelli
Ed Noble

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J.M. ALBAINE ENGINEERING, LLC
14 Lincoln Road, Waterford, CT 06385 Email: jma724@snet.net
www.JMAlbaineEng.com
Oswegatchie Fire Station Temporary Framing Inspection
441 Boston Post Road, Waterford CT REPORT #1 --- October 31, 2022
ENGINEERING
Att. Michael Howley
Director of Fire Services
Public Safety Building
204 Boston Post Road
Waterford, CT 06385
Subject: Oswegatchie Fire Station
Inspection /Assessment: Building Structural Safety
Project # JMA22-327-062
The following report objective is to provide an update of the current structural condition
of the overall building shoring as designed and constructed per our recommendations. |
met with Rocco Bracciale at the premises for an inspection / walk through conducted on
October 15', 2022.
Reference Documents
1) Report / Letter dated March 6", 2011 by JM Albaine Engineering - Project # JMA10-
327-06.
2) Report / Letter dated February 5, 2011 by JM Albaine Engineering - Project # JMA10-
327-06
3) Design /As-Built Drawings By JM Albaine Engineering S-1 to S-7, Revision 2, dated
March 05, 2011.
Executive Summary:
The installed temporary shoring on the original building under scope, built in 1928, is in
good condition and no significant sign of distress or deficiency was observed nor
detected that may indicate a concern regarding the safety of the building in the current
condition as supported by the shoring. The shoring is holding up the damaged main roof
over the Apparatus Room, Day Room, Hall Room, and Kitchen, all located in the older
building, the subject of the shoring.
Moreover, the intersecting roof framing between the 1928 structure and the flat roof
from the 1985 structure is a critical area where lots of damage on the roof rafters have
been observed sue to the flat roof bearing on the older 1928 roof.
JM Albaine Engineering, LLC - 860-705-1631 860-439-1111 Page 1 of 4

Oswegatchie Fire Station Temporary Framing Inspection
441 Boston Post Road, Waterford CT REPORT #1 --- October 31, 2022
However, it is also our opinion that the temporary shoring is not a substitute for the
overall building stability as stated in Reference 1 above and quoted below:
“Please note that the installed temporary shoring served the function of stabilizing the roof to
prevent a sudden roof collapse. The shoring are designed to provide a safe working
area/platform during the projected work to repair or replace the roof; this framework has
been designed for temporary application as other elements such as the exterior walls are
subject to local or global failure (such as from high wind pressure or suction induced by
hurricane forces).”
It is factual that since the installation of the shoring, the building has been subject
to two major hurricane forces, Irene in August 2011 and Sandy in October 2012.
These hurricanes had wind velocity of 66 mph & 80 mph respectively, and the
building withstood these forces with no major consequences.
The deficient roof framing is being supported by the shoring, however it is
subject to deterioration if water intrusion is present which will further weaken
such framing. It is imperative to keep the existing roof framing in a dry condition.
Furthermore, the current Connecticut Building Code (2022) requires building to
be designed for a wind velocity of 108 mph in Waterford, which translates to
building forces increment of 82% above those from Hurricane Sandy, therefore
presenting a high risk of building damage and stability in the case that such
storm may come through our area.
Conclusion:
The shoring installed in 2011 are providing the required support as originally
intended, mainly reinforced the weaken roof framing over the Apparatus Room,
Dispatcher Room, Day Room, Hall Roo, and the kitchen. These shoring were
installed principally because of the dismal condition of the roof framing (see Ref.
#2).
The shoring was found in good conditions with negligent movement changes
since they were installed, thus ensuring the safe function of those areas under
potential heavy snowstorms.
However, the existing roof framing was stabilized by providing vertical supports
at the peak (ridge) down to solid structure and reinforcing the existing rafter tie
connections to the existing rafters (refer to Reference 3, Section “A”, Dwg S-2
and Section “B” Dwg. S-3). The existing rafters (2 x 6 @ 24” on-center) were not
reinforced at the time due to the nature of the work (temporary), and they remain
the weakest link in the chain as water intrusion from the roof will further
deterioration on such elements of the roof framing.
JM Albaine Engineering, LLC - Waterford, CT 06385 860-705-1631 Page 2 of 4

Oswegatchie Fire Station Temporary Framing Inspection
441 Boston Post Road, Waterford CT REPORT #1 --- October 31, 2022
Regarding the building lateral stability caused by hurricane induced lateral forces
and to a lesser degree seismic forces, the area of the building under
consideration is vulnerable as reported previously due to the weakened state of
the exterior walls specially in the Apparatus Room as previously reported.
Although the building has withstood two significant hurricane events in the last 12
years, there still exist a significant risk of building overall stability if a significant
hurricane passes through the areas because of the condition of the exterior
bearing wall (shear walls) and the existing roof rafters that were not reinforced at
the time of the installation of the shoring.
| trust this information is adequate for your needs. If you have any questions or desire
further information regarding this report, please contact me at your convenience.
Respectfully submitted,
U
Jose-Miguel Albaine, M.S., P.E.
Consulting Design-Structural Engineer
JM Albaine Engineering, LLC - Waterford, CT 06385 860-705-1637 Page 3 of 4

Oswegatchie Fire Station Temporary Framing Inspection
441 Boston Post Road, Waterford CT REPORT #1 --- October 31, 2022
JM Albaine Engineering, LLC - Waterford, CT 06385 860-705-1631 Page 40f 4