Dust Control on Alaska's Village and Rural Roads Yields Community Benefits

Clark Milne
2010-10-22
Alaska DOT & PF; Northern Region M&O

DUST CONTROL

on

Alaska’s Village/Rural Roads

yields

Community Benefits

 

NR Transportation Forum Friday, October 22, 2010

 

by Clark Milne, PE

AkDOT&PF; Northern Region M&O

 

Picture Placeholder

continue reading...

 Picture Placeholder

Our village roads are too dusty, too often (ADEC & EPA will have to enforce PM-10 regs, if  we don’t act to reduce fugitive dust releases?) Noorvik

 

 Picture Placeholder

Many Alaska villages are known to be affected

 

 

Airborne Dust has negative impacts:

 

  • •       Causes housekeeping issues !
  • Obscures visibility on unpaved roadways
  • •       Interferes with normal plant growth
  • Pollutes adjacent waterways
  • •       Can cause health problems, particularly in infants, the elderly and people with common respiratory problems

 

 

Primary/Available Methods to Minimize Road Dust

  • Prepare road and pave?  (Quite expensive, improbable)
  • Apply crushed aggregate surfacing? (supply & funding difficult)
    • Apply water to reduce dust? (Frequency?                                                                         Every day?)
    • Apply community speed limits?  (Need broad “buy-in”)
    • Apply chemical dust palliatives? (Funding? Health risks?)
      • Combination of several alternatives from above - ???

 

 

 

DUST CONTROL PRODUCTS

(recent uses at Northern Region sites)

Calcium Chloride (often used on roads & highways) Water !! (not very practical for our traffic, but safe?)

and various “chemical palliatives”

EK-35     (used at 25+ airports, over the last 10 years) Durasoil®  (applied @ airports & roads in last 4 years) EnviroKleen (applied @ Eagle; and Kawarek villages) Earth Armour               (synthetic liquid – used @ Noorvik, 2010) LSP-400 (used on Kobuk/Shungnak roads with BIA IRR funds) Freedom Binder 400 (used on Mat-Su & NP roads in 2010)

 

 Picture Placeholder

Larger “villages” do watering:  Nome, Kotzebue, Bethel, etc.

 

DOT&PF–managed road work @ Tanana, applying Durasoil®                          - during Fall 2007

Picture Placeholder

 

 

Tanana typical village road: treated August 2007

 Picture Placeholder

 

 

 

Kawerak applied EnviroKleen at 19 Western villages

(2006 & 2007)

 Picture Placeholder

 

 

 

 

 

EnviroKleen was applied on 4 miles of Eagle’s roads: spring 2010; with Denali Commission funding

 Picture Placeholder

 

Participating villages for the summer 2010 dust control “trials”

 

 

As specified in the FY09 capital grant: Ambler

  • Ambler
  • Bethel
  • Buckland
  • Kiana
  • Kotzebue
  • Noatak
  • Noorvik
  • St. Marys

 

 

Bethel Buckland Kiana Kotzebue Noatak Noorvik St. Marys

 

Durasoil applied at Bethel; 2010

 Picture Placeholder

 

 

 

 

 

“Practise” spraying (with water) at Ambler; 2010

 Picture Placeholder

 

 

 

Airports can cause dust releases too !!

 

 

 Picture Placeholder

 

Successful application of EK-35: Numam Iqua Airport – 2007

(just one of 48 airports treated with palliatives since 2000)

 

 Picture Placeholder

 

QUESTIONS?

 

 Picture Placeholder

 

Clark Milne, PE (907) 451-5285 Alaska DOT & PF – Northern Region clark.milne@alaska.gov

 

Complete the form below to download this document now.
Fill out the form to get access to the complete article.