Skip to content    home   ·   browse   ·  advanced search   ·  preferences  ·  my saved items  ·  help  ·  view other collections    
add to my saved items  ·  reference url back to results   ·   previous   ·   next
State Road Departments Help Protect Water Quality While Keeping Roads Safe

TitleState Road Departments Help Protect Water Quality While Keeping Roads Safe
Author/CreatorCobourn, John; Purdy, Shelly; Segale, Heather M.
Related item(s)Press Release available at
Date Original2004-01-06
Summary/DescriptionLake Tahoe Report Segment #49 - "NDOT Winter Snow Removal and Efforts to Reduce Impacts to Water Qualityl" (Air Date: January 6, 2004). Thor Dyson from the Nevada Department of Transportation discusses how technology and different grades of sand have enabled that agency to reduce the amount of roadway pollution that washes into the Lake during snow season.
SubjectRoads -- Snow and ice control -- Environmental aspects -- Tahoe, Lake, Region (Calif. and Nev.)
LocationLake Tahoe (Calif. and Nev.)
Tahoe, Lake (Calif. and Nev.)
CollectionThe Lake Tahoe Report
Original PublisherLake Tahoe Environmental Education Coalition (
Electronic PublisherUniversity of Nevada, Reno - Department of Teaching and Learning Technologies
Ordering and Permissions InformationFor more information, contact the University of Nevada Cooperative Extension, or 775-832-4138.
Date Digital2005-03-14
RelationRequires Windows Media Player
Resource TypeMoving Image
Contributing InstitutionUniversity of Nevada, Reno
TranscriptionSegment 49 NDOT Snow Removal Air Date: 1/6/04 Anchor Intro: It's that time of year again when snow plows rule the road and salt and sand collect on your car. In tonight's Lake Tahoe Report, Shelly Purdy shows us how the Nevada Department of Transportation is trying to keep that sand and salt from polluting Lake Tahoe. TAKE PKG ((@:40 natpop getting sand out of the storage building)) ((Track 1)) When a storm's on its way, there's a lot going on at the NDOT yard. Plows are filled with sand and sent out on the road. But the sand that's used these days at Lake Tahoe and throughout Washoe County is very different from what was put down on the road a few years ago. It's a tougher rock called "spec D" sand. ((sot @ 4:23, Thor Dyson, NDOT district Engineer)) "The sand doesn't break down into very small powdery particles that would either fly up into the air causing an air quality problem or a sand that would break down in solution and go towards Lake Tahoe." ((Track 2)) Aside from the new sand, NDOT is also using technology to help them keep Tahoe blue. ((s/u @ 22:15, Shelly Purdy)) "There are ten of these high tech road weather stations on the Nevada side of the lake. They tell operators whether the roads are wet, dry, icy or snowy and that information is used to determine just how much sand and salt gets put on the roads." ((sot @ 7:46)) "Our total storm management also includes the picking up and sweeping of sand off the roadway surface as well as ditches as well as sediment trap basins and facilities that actually catch the sand." ((track 3)) As soon as the sun comes out and the roads start to dry those sweepers are sent out. Removing the sand after each storm reduces the amount that will wash into storm drains which flow into the lake. By using a different grade of sand, limiting the amount that gets put on the roads and taking it off immediately after a storm, NDOT has reduced the amount of roadway pollution they contribute to Lake Tahoe by up to 75%. With the Lake Tahoe Environmental Education Coalition, I'm Shelly Purdy for KOLO NC8. Anchor Tag: NDOT also takes the sand off the roadways immediately after a storm as a safety precaution for drivers. Too much sand on the road can cause friction issues and create unsafe driving conditions.

Submit A Comment

add to my saved items  ·  reference url back to results   ·   previous   ·   next
powered by CONTENTdm ®  ·  contact us  ^ to top ^