Agenda - Council - 03/10/2009 - Laserfiche WebLink

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1. Excavation observation and placement of fill a. Perform geotechnical exploration and review reports, providing boring logs, conclusions, opinions, and recommendations. b. Observe exposed soils in the bottom of excavations, documenting the elevation and keeping detailed notes. c. Perform shallow hand auger borings and hand cone penetrometer probes, as necessary. I Evaluate the suitability of soils to support structural loads and pavements, and document adequate oversizing for load support. e. Provide compaction testing to evaluate fill density using the sand cone, or nuclear density method. f. Conduct standard or modified proctor tests on differing fill to be placed, and obtain samples for sieve test or other classification analysis., 2. Concrete testing a. Documentation of correct mix delivery. b. Slump tests. c. Air content-tests. I Measuring temperature of the concrete at placement. e. Compare results to project specifications and report discrepancies immediately. f. Provide daily field reports, or as directed. 3. Subgrade observation and test rolls a. Observe stability during test - rolling. b. Evaluate deflection under w eel loads, and mark areas of excessive deflection for corrective actions. c. Provide recommendations for correction of unstable subgrade soils. d. Present results of observations in a written report, if requested. 4. Pavement testing a. Observe rolling procedures and assist in establishing a pattern to achieve design density during placement. b. Obtain samples of bituminous for laboratory testing, including: • Marshall density • Rice specific gravity • Asphalt extraction • Aggregate gradation V Proposal Criteria Proposals should be presented in the following order, showing the following details as a minimum: 1. Firm name, address, phone, fax, primary contact person, and date of proposal. 2. Profile of the firm, including history, experience, and client references. 2 6-4148—