HomeMy WebLinkAboutFoundation Report 04.06.2015April 6, 2015
Mr. Gordon McFerron
Mays Construction Specialties, Inc.
P.O. Box 4229
2399 River Road
Grand Junction, Colorado 81502
Project No 15 -004G -D1
Subject: Review of Micropile Foundation Load Testing, Pfaff Residence, East Elk
Creek, Garfield County, Colorado
Dear Mr. McFerron,
RJ Engineering reviewed micropile load test data for the Pfaff Residence micropiles al East Elk
Creek, Garfield County, Colorado Mays Construction Specialties conducted one micropile
verification test and one proof test on production piles to verify assumed soil strength
parameters. The tests were performed in tension, which we believe is more conservative than a
compression test. Therefore, the measured deflections would typically be more than if the
micropile were tested in compression.
The verification test was loaded to 2.0 times the design load (63,000 pounds) and the proof test
to 1.6 times design load (50,400 pounds) The total measured deflection was 0 06 and 0 10
inches, respectively, at the design Toad. The tests were conducted in general conformance with
FHWA guidelines and the test results are attached We believe test results indicated
movements are within acceptable design limits (see attached)
Based on review of the test data, it appears the micropiles installed by Mays Construction
Specialties, Inc. were in general conformance with plans provided by RJ Engineering &
Consulting, Inc.. dated January 27, 2015. RJ Engineering did not conduct or observe testing
and did not verify micropile locations Survey and micropile layout was assumed to be the
responsibility of others
If you have questions or need additional information, please call us at 970-230-9208.
Sincerely,
RJ Engineering & Consulting, Inc.
Richard D. Johnson, 0.E.
Project Manager
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