Sheet Flow Construction Erosion Control

October 23, 2021

Writing Contract Specifications

Topic: Writing specifications is always challenging. Writing specifications that incorporate environmental permit requirements is especially challenging. After this presentation, attendees will understand the difference between contract and permit language, how to determine what parts of a permit should be in a contract, and how to translate permit language into enforceable contract language.

Presenter: Dave Jenkins, CPESC Dave has worked in construction erosion control for over 27 years. He recently retired after 22 years as the Port of Seattle Erosion Control/Stormwater Engineer. Prior to the Port, he was the WSDOT Statewide Erosion Control Coordinator, responsible for developing and implementing their first contractor erosion control certification program. All of Dave’s experience is in heavy civil, public works construction, primarily seaport, airport and roadway infrastructure.

February 16, 2019

Vacuum Sweeper Maintenance

Vacuum Sweeper Maintenance – If I specify a vacuum sweeper on a construction project, I expect it to be operational.

I require all systems to be functional per manufacturers specifications.

If not, the sweeper goes away, maybe the job is shut down, until a working sweeper is brought to the site.

Specifications:
1) Power brooms shall not be utilized without prior approval by
the Engineer.

2) Contractor shall have sufficient working vacuum sweepers on
site at all times work is being performed.

3) All sweepers shall have on-board water spray systems that
shall be operating at all times.

4) systems shall function per manufacturer specifications
including, but not limited to, spray water systems, blowers,
vacuum nozzles, hoses, debris hopper, hydraulics and
electrical.

5) At no time shall debris hopper seals leak debris and liquids.

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