HomeMy WebLinkAboutFile Documents.720 W Hopkins Ave.0080-2023-BRES (3)
Terms and Conditions Page 1 Revised 2023
FIELD REPORT
6/8/2023
Randall Davis
720 W Hopkins, Unit A
Aspen, CO 81611
Slopeside Engineers, LLC
1809 Grand Avenue
Glenwood Springs, CO 81601
Reference: Existing Structure Investigation
131 E Durant Ave
Aspen, CO 81611
PURPOSE:
Slopeside Engineers was contacted on 6/5/2023 regarding a remodel underway at 720 W Hopkins, Unit A
in Aspen, CO 81611. The City of Aspen halted construction pending a structural review and report. The
site visit was conducted to observe and document what impact the proposed interior remodel has on
existing structural load path. Slopeside Engineers did not evaluate the adequacy of the existing structural
elements throughout the building to current code standards (i.e. roof framing, floor framing, exterior
walls, lateral elements, etc). The intent of the visit was only to see if the remodel changed any aspects of
the existing structure that would negatively impact the existing load path and structural performance. No
warranties or guarantees shall be implied regarding analysis of existing framing. Please note that a report
of this nature requires certain assumptions and/or conclusions based on visual observations only and does
not draw any conclusions for aspects of the structure that were not visible at the time of the site visit or
for any future modifications.
OBSERVATIONS:
Slopeside Engineers visited 720 W Hopkins, Unit A at 1 pm on 6/6/23 to meet Tommy Kanarellis, who took
us through the site on behalf of the owner, Randall Davis. Existing framing conditions are summarized
below:
· The lower level was slab-on-grade with bearing and non-bearing stud walls (Figure 1).
o In the bathroom area of the lower level, a load bearing column was cut and transferred
out on a new (2)2x4 header with a single 2x4 trim stud on each end (Figure 2).
o The stairs from lower to main level remained intact and the North stair stringer transfers
out on the new header installed in the lower-level bathroom (Figure 3).
· The main level floor was framed with 2x8 floor joists at 16” on-center spanning North to South
with ~12-ft spans on the East end of the townhome and ~16-ft spans on the West end of the
townhome with exterior load bearing walls (Figure 4).
o Based on visual observations, there appeared to be a main level transfer beam carrying
main level floor joists transferring out on the column that was removed during the
remodel.
o The enclosure wall on the stairs from the main to upper level is load bearing, and the
studs were cut by the contractor with new studs scabbed on (Figure 5).
· The upper-level floor was framed in an identical fashion to the main level (Figure 4).
o The stairs from the main to upper level remained intact with the North stair stringer
transferring out on a load bearing column landing on the new header in the lower-level
bathroom.
o The contractor notified Slopeside Engineers that the upper-level column (Figure 6) 06/12/2023
Terms and Conditions Page 2 Revised 2023
FIELD REPORT
located at approximately the center of the ridge beam will stay in place.
· No aspects remodel impacted existing roof framing.
· No aspects of the exterior existing walls are impacted by the remodel.
· Slopeside Engineers was notified that all exterior aspects of the townhome will not be a part of
the current renovation.
CONCLUSION:
After our initial observation, Slopeside Engineers has made the following conclusions:
· Lower Level
o The renovations to the lower level demolished a load bearing column and added a new
(2)2x4 header with single 2x4 trim studs (Figure 3). The new header is not adequate to
support existing transfer load. Slopeside Engineers recommends adding a (3)1 3/4x9 ½”
LVL to replace the header with (2)2x6 trim studs on each end. Additionally, a 24”x24”x12”
pad footing reinforced with (3)#5 bars each way on the bottom will be required to support
each trim stud. A Simpson ABU44Z post base attached to each footing with a ½”diax5”
Titen HD screw anchor should be used for each (2)2x6 trimmer column to hold the base
off the new pad footing. See attached SSK 01.
As an alternative to this proposed solution, the contractor can replace the load
bearing column that was removed.
o The remaining renovations of the lower level did not appear to impact lower-level load
bearing structural elements.
· Main Level
o The renovations to the lower-level cut studs from a load bearing enclosure wall on the
stairs with new studs scabbed on (Figure 5). Slopeside Engineers recommends adding (6)
Simpson SDWS16212 per scabbed stud to reinforce the connection between the new and
existing studs. Provide a minimum of 2” end distance, 1 ¼” edge distance, and 3” spacing
between the rows of screws.
· Upper Level & Roof
o The upper-level renovations did not appear to impact upper-level and roof load bearing
structural elements.
· Exterior
o No modifications are being made to the exterior of the building.
Slopeside Engineers has informed the contractor and requested that the proposed modifications be
completed. Upon completion, Slopeside Engineers has requested that the contractor provide photos
documenting the updated work. With the requested modifications being completed, the renovation will
adequately keep the existing load path intact and not impact structural performance. Other than the two
areas Slopeside Engineers has noted above, the renovations did not appear to impact the existing
structural load path and should not require any further modifications. As an alternative solution to SSK01,
the contractor can opt to replace the load bearing column that was removed.
06/12/2023
Terms and Conditions Page 3 Revised 2023
FIELD REPORT
LIMITATION OF LIABILITY:
The scope of Sloepside Engineers’ services include those addressed in this report only. All other concerns
are outside of the scope of this field report. This includes any non-structural related concerns, such as,
but not limited to, electrical, plumbing, environmental concerns (water, mold/mildew, hazardous or toxic
materials, etc), or other structural issues.
Absolute causes and/or conclusions cannot be guaranteed with an inspection of this nature. Slopeside
Engineers has conducted our field visit in a manner that is consistent with standard skill and care exercised
by firms in this area and locality. Contact Slopeside Engineers immediately if conditions are found that
conflict with the assumptions in this report.
This report is confidential and intended for the exclusive use of the client listed above. No other person
or entity may use this report without the prior written consent of Slopeside Engineers. This report will
expire 6 months from the date of issuance. Please notify Slopeside Engineers if we can be of further
assistance.
Sincerely,
Slopeside Engineers
Report Written by:
Bridger Baird, PE
Managing Principal
Reviewed by:
Skyler Fussner, PE
Managing Principal
6/8/23
06/12/2023
Terms and Conditions Page 4 Revised 2023
FIELD REPORT
APPENDIX:
Figure 1: Photo from main entry showing lower-level slab-on-grade, stud wall, and lower to upper-level wood stair framing.
Figure 2: Photo from lower-level bathroom showing cut transfer column, (N)(2)2x4 header, and single 2x4 trim studs each end.
06/12/2023
Terms and Conditions Page 5 Revised 2023
FIELD REPORT
Figure 3: lower-level to upper-level stair. Right stair stringer transfers out on (N) (2)2x4 header.
Figure 4: exposed (E)2x8 floor framing. Main level and upper-level framing assumed to be the same.
06/12/2023
Terms and Conditions Page 6 Revised 2023
FIELD REPORT
Figure 5: (E)2x6 load bearing wall, studs cut by contractor with (N)2x6 studs scabbed onto existing.
Figure 6: (E)load bearing column, assumed to remain.
06/12/2023
(3)9 1/2" LVL HEADER
(2
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(E)WALL, VERIFY IN FIELD
PROVIDE MOISTURE
BARRIER BETWEEN TRIM
STUD AND (E)WALL
(N)24"x24"x12" PAD FOOTING,
REINF W/ (3)#5 EACH WAY
EPOXY DOWEL REINF INTO (E)
FTG, 4" MIN EMBEDMENT
(E)FTG, VIF
(N)24"x24"x12" PAD FOOTING,
REINF W/ (3)#5 EACH WAY
DEMO (E)SOG AS REQUIRED
FOR NEW FOOTING, TYP
T/(E)SOG
T/FTG
FILL PORTION ABOVE FOOTING
WITH ADDITIONAL CONCRETE
TO BRING FLUSH W/ T/SOG
SIMPSON ABU44Z POST BASE,
PACKOUT AS NECESSARY,
ATTACH W/ 1/2"Øx5 TITEN HD
SCREW ANCHOR, TYP OF (2)
(E)TRANSFER COLUMN,
ATTACH TO HEADER W/
(2)10d TOENAILS EA SIDE,
(4) TOTAL
3" MIN BRG, TYP
T/(E)FTG
T/FTG
(E)SOG, TYP
NOTE:
CONCRETE FOR FOOTINGS SHOULD REACH A 28
DAY 4,000 PSI COMPRESSIVE STRENGTH, NORMAL
WEIGHT CONCRETE, WITH A MAX AGGREGATE SIZE
OF 3/4", NO AIR CONTENT, AND EXPOSURE
CLASSIFICATION: F1, C1, S0, W0.
LVL HEADER:
Fb = 2,600 PSI
Fc perp = 750 PSI
Fc parallel = 2,510 PSI
Fv = 285 PSI
Ft = 1,895 PSI
E = 2,000,000 KSI
FASTENERS NOT SHOWN SHALL CONFORM TO
MINIMUM FASTENING REQUIREMENTS FROM THE
2018 INTERNATIONAL BUILDING CODE.
Date
Drawn By
Checked By
Project #
SLOPESIDE-ENGINEERS.COM
SKYLER: (484) 866-2854
BRIDGER: (970) 389-1544
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06/12/2023