HomeMy WebLinkAboutObservation of Excavation 04.02.2024l$nf,'ffif;'ffif$*i*'i**
5020CountYRoad 154
Glenwood SPrings, C0 8i601
PhonC: (c)?0) 945-7988' ftrx:(9?0) 945-8454
enr ai1: kaglcnwood@;kumartlsa'con'l
wwwkumat1$acg![
An EmPlottcc Owrud ComPonY
C)ffice Locations: Denver (HQ), Parker, C.nlorado SPrings'Fort Collins, Glenwood SPrings,and Summit 0runtY, Cnlorado
April2,2024
Brian Ganrmill
ll7 22 Forest Glen Street
Houston, Texas 77024
bri an. gamnlill@transwestern'com
Subject:
Mr. Gammill:
Project No. 23-7-516.A
observation of Exoavation, Proposed Residence, Lot 54, Filing 8, Aspen Glen,
567 Saddleback Road, Garfield County' Colorado
As requested by Peak 3 construction, a representative of Kumar & Associates' Inc' observed
the excavation at the subject site on April i, 2024 toevaluate the soils exposed for foundation
support, The finding, oiou, observations and resommendations for the foundation design are
presented i' this ,.pin. we previously conducted a subsoil study for design of fou'dations at
the site and presented our findings in a report dated october lg,2,24,Project No' 23-7-516'
Trre current observation was performed in accordance with our agreement for professional
services with you dated April t, 2024'
Theproposedresidenceisessentiallythesameasthatdescribedinourpreviousreportandlras
beendesignedtobesupportedonspreadfootingsplacedon3feetofcompactedstructuralfill
and sized for an allowable bearing pressure of 2'000 psf'
At the time of our visit to the site, the foundation excavation had been cut from about 3 to 7 feet
below the adjacent ground surface. The soils exposed in the bottom of the excavation co'sisted
of stiff to very stiff, sandy silty clay. The sub-excavation for foundation support had been started
i' the southwest perimeter area and exposed similar soils. No free water was encountered in the
excavation and the soils were slightly moist'
The soil conditions exposed in the excavation are consistent with those previously encountered
on the site ancr suitable for support of cornpacted structurar fiil and spread footings designed for
the recommended allowable bearing pr"rrurc of 2,000 psf' we should be requested to evaluate
compactionoftheimportedroadbasematerialonaregularbasis.otherrecommendations
presented in our pr"uiou, report whioh are applicable should also be observed'
The recommendatio's submitted in this letter are based on our observation of the soils exposed
withi' the fou'dation excavatio' and the previous subsurface exploration at the site' variations
in the subsurface conditions below the excavation courd increase the risk of foundation
movement. we should be advised of any variations encountered in the excavation conditions
for possibre cha'ges to recomrnendations contained in this letter. our services do not include
determining the presence, prevention or possibility of mold or other biorogical contaminants
(MOBC) deveroping in the future. If the client is concerned about MOBC, then a professional
in,ti, special field of practioe should be consulted'
If you have any questions or need further assistance, please call our office'
Brian Gammill
April 2,2024
Page2
SincerelY,
Kumar & Associates' lnc,
Steven L. Pawlak, P.
SLPlkac
cc:Peak 3
Peak 3 Construction - Jeff Claflin
(${gs@Feak3 aspen. com)
iie@peak3aspen'corn)
Kumar & Associates, lnc, @
Prolect N0.23.7-516.4