Designers & Contractors

Construction projects generally require ground disturbing activities and the use of various types of materials (e.g., paint, fertilizer, etc.), all of which culminates in these projects posing a higher risk to storm water quality. 

Ground that has been disturbed by construction and left unstabilized can be easily eroded by rain or runoff. As a result, stormwater runoff from construction sites can cause significant harm to our streams and coastal waters.

To mitigate the potential pollution associated with construction projects stormwater best management practices (BMPs) are employed. These practices help to reduce the risk of storm water pollution and help keep our oceans clean. Below you will find BMP related resources for contractors and project designers.


Whether designing for HDOT Highways, HDOT Harbors, or a private development working within HDOT Right-of-Way, designers should be familiar with the practices necessary to minimize the environmental impact of the projects being developed. Links to additional information to assist in the development of site-specific construction BMP plans are provided below. Designers are encouraged to also refer to the contractors section of this page for information on the permits that are required to connect and discharge into HDOT property.

Below are some questions you should ask before starting work on any construction project for HDOT or within HDOT Right-of-Way.

Do I need any permits for my project?

If you answer “YES” to any of the following questions, you will need a permit in order to start work:

1. Am I working within HDOT Right-of-Way?
PERMIT NEEDED: Permit to Perform Work Upon State Highways

ALSO COMPLETE: Storm Water Control Design Checklist Tool

2. Will my project discharge into an HDOT storm drain? (even if the project does not have construction activities within HDOT Right-of-Way)
PERMIT NEEDED: Application and Permit To Discharge to the State of Hawaii Highways Division Storm Drain System

3. Will my project connect to an HDOT storm drain?
PERMIT NEEDED: Permit For Connection To The State of Hawaii Highways Division Storm Drain System

4. Does my project disturb an acre or more of land?
PERMIT NEEDED: National Pollutant Discharge Elimination System General Permit Coverage or Individual Permit Coverage
For more information about General Permit or Individual Permit coverage, please visit the State of Hawaii Department of Health, Clean Water Branch

Additional Resources

For further information contact HDOT Highways Division Maui District Office at (808) 873-3535.

For projects involving work within or encroaching upon HDOT Harbors property:

For further information contact HDOT Harbors Division Maui District Office at (808) 873-3350 or Engineering Branch (808) 587-1860.

The control of materials, chemicals and minimizing of sediment transport utilizing Best Management Practices is critical to the mitigation of the impacts of construction activities on the environment and our waters. Contractors play the critical role in selecting, implementing and maintaining appropriate BMPs on their project sites in an efficient and effective manner.

Below are some questions you should ask before starting work on any construction project for HDOT or within HDOT rights-of-way.

Do I need any permits for my project?

If you answer “YES” to the following question, you will need a permit in order to start work:

Am I working within HDOT Right-of-Way?
PERMIT NEEDED: Permit to Perform Work Upon State Highways Application Packet

Do I need a Site-Specific Construction BMP Plan?

If you answer “YES” to any of the following questions, you need a Site-Specific Construction BMP Plan:

  1. Am I working on a project requesting a State of Hawaii Department of Transportation Application and Permit To Discharge to the State of Hawaii Highways Division Storm Drain System?
  2. Am I working on a project requesting a State of Hawaii Department of Transportation Application and Permit For A Private Drain Connections To The State of Hawaii Highways Division Storm Drain System?
  3. Am I working on a project requesting a State of Hawaii Department of Transportation Permit to Perform Work Upon State Highways?

NOTE: For HDOT Highways Division construction contracts that disturb an acre or more of total area and require an NPDES permit, the Storm Water Pollution Prevention Plan (SWPPP) template must be used in lieu of a Site-Specific Construction BMP Plan. A copy of the SWPPP template may be obtained through the HDOT Highways Maui District office.

Additional Resources

For assistance, please email  ty.h.fukuroku@hawaii.gov or call (808) 873-3535.




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