Martin Marietta plans Colorado gravel operation

Martin Marietta Materials has applied to Boulder County, Colorado to revise a 1998 county-approved plan to build a gravel processing site.

Martin Marietta Materials proposes putting a processing plant and related buildings a 5-acre site north of the St Vrain River and south of the BNSF railway, Colorado, reports Times-Call.

Martin Marietta’s application is based on county commissioners’ 1998 approval of a long-range plan by Western Mobile Boulder Inc, the property’s former owner, for future gravel mining, and the eventual development of processing and storage facilities on part of a larger 881-acre property.

That 1998 action replaced earlier county approvals for open mining on 647 total acres within the overall the property.

In 2011, Martin Marietta bought the overall property that includes the 5-acre site where the buildings would go.

If the commissioners give their approval, Martin Marietta would then have to get county building permits before erecting the structures. Some would also require county floodplain-development permits since part of the property is within the St. Vrain River’s 100-year floodplain.

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