College - Author 1

College of Architecture and Environmental Design

Department - Author 1

Construction Management Department

Degree Name - Author 1

BS in Construction Management

Date

6-2018

Primary Advisor/Subject Matter Expert (SME)

Paul E. Redden, College of Architecture and Environmental Design, Construction Management Department

Abstract/Summary

Sand, gravel and crushed stone, known as construction aggregates, are the main ingredient in materials to maintaining and building new infrastructure. Construction aggregate has a low cost per ton, but because mass quantities are typically required, if a local source is not available then the cost of transportation quickly exceed the value of the material. The North Bay Area has an estimated 50-year demand of 521 Million Tons (MT) and a current permitted supply of 110 MT. This North Bay Area region has a supply to demand ratio of 21% and is estimated to last 11-20 years (from 2012). This demand study does not include the extreme increase in demand that Senate Bill 1 (SB-1) will require. A culmination of increased aggregate demand from SB-1, continued construction growth in the Bay Area, increased trucking cost, and environmental resistance to new quarry permits might significantly accelerate the aggregate shortage in the North Bay Area. As a possible solution to these circumstances, a feasibility study has been performed on bringing aggregate in by rail from a region with a surplus of permitted aggregate to meet the local demand.

Available for download on Tuesday, June 13, 2023

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