Engineering Documents

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Stormwater Management Design Manual

On August 5, 2014 the Board of Commissioners adopted the Georgia Stormwater Management Manual (latest edition) as the County's stormwater design manual.  Click the above link to view the latest edition of the GSMM.

Effective July 19, 2016, the Board of Commissioners adopted the 2016 Columbia County Supplement to the Georgia Stormwater Management Manual.  Click to view the 2016 Supplement.


Proposed Revisions to Drainage Supplement and Specifications

Effective January 17, 2017, the Board of Commissioners approved the revisions to the construction specifications.  To view Specification Sections, click below

16.0 Construction of Storm Drain Pipe System
17.0 Construction of Open Drainage Systems
18.0 Construction of Storm Drainage Structures and Facilities

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