6.3. SR 02-07-2005 - Laserfiche WebLink

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:1 City of Elk River Project BN-04-06875 December 8, 2004 Page 2 I I A.5. Locations and Elevations With assistance from Mr_ John Anderson of the city of Elk River, we selected and staked the boring locations. Boring ST-5 had to be offset from its staked location to the opposite side of the street to avoid utilities. The location we drilled was thus designated ST-5A I I Ground surface elevations at the borings were also provided by the city. I I B. Results I B.t. Logs Log of Boring sheets indicating the depths and identifications of the various soil strata, penetration resistances and groundwater observations are included in the Appendix. The strata changes were inferred from the changes in the penetration test samples and auger cuttings. It should be noted that the depths shown as changes between the strata are only approximate. The changes are likely transitions and the depths of the changes vary between the borings. I I Geologic origins presented for each stratum on the Log of Boring sheets are based on the soil types, blows per foot, and available common knowledge ofthe depositional history of the area. A detailed investigation of the geologic history of the site was not performed. I I B.2. Site Conditions The borings were complete~ along Upland Avenue, Tipton Avenue, 5th Street, Rush Avenue, Quinn Avenue, Oxford Avenue and Norfolk Avenue. Those alignments are currently .. bituminous-surfaced. 1 I B.3. Soils I B3.a. Pavement Section. The pavement profile encountered by the borings included approximately 2 to 6 inches of bituminous over 3 to 8 inches of aggregate base; the average, however, was typically about 3 1/2 inches of bituminous over 5 1/2 inches of aggregate base. I I I I