HomeMy WebLinkAbout7945.04 E 2023 0601Earth Solutions NWLLC
15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com
FIELD REPORT
Project No. 7945.04 Page 1 of 3 Report ID 7945.04 E 2023 0601
Date Thu 6/1/2023 Weather Clear, 49-70°F
Arrival/Departure Time(s) 7:00am/11:00am, 1:00pm/2:30pm Travel Time (hr)0.75
Project Name Canopy Property
Location 4130 Lincoln Ave NE, Renton
ESNW Rep. & Phone Eric Vernon, GIT, 206-234-7848
Client Info/Contact Century Communities | Stacia Bloom
General Contractor Info/Contact
Reviewed By LAC
Initials/Date
RAC
Initials/Date Field Supervisor Project Manager
Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager.
ESNW rep was on site to observe and document shoring, ultra block gravity wall installation and test side sewer trench backfill.
Shoring Observations – Soldier Pile: ESNW rep observed the drilling contractor use a 30-inch auger to auger excavate to design depth (approx. 25 to 40-feet below existing grade) as per schedule (pg. 2). The excavations were stable with
spoils consisting of dense grey silty sands. ESNW rep observed the contractor install a steel beam as per schedule in the center of the excavations and backfilled with structural concrete to bottom of excavation and ‘CDF’ to existing grade. ESNW rep observed the contractor install P28, P29, P30, P33,
P34, P37, P38, P39 and P40. The shoring installation was observed completed as per approved plans and our geotechnical recommendations.
Ultra-Block Gravity Wall Observations: ESNW rep observed the contractor install a ultra-block gravity wall along the east side of lots 33 to 40. ESNW rep observed the excavation for the wall to be in dense material with a 1H:1V slope and was stable at the time of visit. The contractor placed a lift of blocks as per design schedule and used 5/8-inch clean crushed aggregate as drain rock/backfill. ESNW rep observed the wall to be installed as per approved plans and our geotechnical recommendations.
Side Sewer Observations:
While onsite, ESNW rep observed the contractor excavating a sewer trench-line and installing side sewer for lot 3, lot 5 and lot 6. The contractor excavated to an approximate 8-feet in depth while establishing trench boxes. The contractor installed an 8-inch diameter PVC pipe bedded in pea gravel. The contractor
backfilled the trench with native material in 12 to18-inch loose lifts and compacted each lift with a hoe pack. Density tests indicate adequate compaction of at least 95% at tested locations.
Report ID 7945.04 E 2023 0601 Page 2 of 3
Earth Solutions NW, LLC
Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf)
Test Moisture (%)
Test Dry Density (pcf) % of MDD
130 Lot 3 Side Sewer SG 6 137.2 8.8 131.2 96
131 Lot 5 Side Sewer SG 6 137.2 9.0 129.7 95
132 Lot 6 Side Sewer SG 6 137.2 8.5 129.9 95
Report ID 7945.04 E 2023 0601 Page 3 of 3
Earth Solutions NW, LLC