HomeMy WebLinkAbout07/02/2002, CLR - HIGHWAY ONE AD HOC BARRIER DESIGN COMMITTEE Ale
MEETING AGENDA
LLUSON REPORT DATE 7 Oz ITEM #
June 2, 2002
To: Council Collea
From: Ken Schwartz
Copy. Ken Hampian, a McClusky
Re: Highway One ad hoc barrier design committee
Meeting#5 was held at Cahrans offices on Laurel Lane. We are beginning to make a bit
of progress. Caltrans staff prepared maps showing places where openings would be
required to give vehicle access to adjacent properties. We also were shown design
sections in the barrier-to-permit the passage of small animals and one design for larger
animals—primarily deer. Nobody seems to really know how deer will likely react to this
barrier. Caltrans has consultant biologists with whom they will consult to obtain a better
"read"on deer behavior.
A major problem is that this particular median is that it is only 6' wide. The Army built
this highway in the 40's long before median barriers became a factor in highway safety
concerns. There is no budget to widen the highway to increase median width so we must
design within this very tight six-foot limitation.
We were also introduced to devices designed to reduce deflection ofvehicles that crash
into the ends of barriers exposed when there is a break in the barrier. The most common
of these devices are the yellow barrels filled with sand or water we often see stacked at
the exposed ends of barriers. There are two other types that have been safety tested and
look much better than the barrels. We will be discussing our preferences for these
designs at the next meeting.
So, little by little the details are getting sorted out and we should be getting to the
aesthetic kernel of the concrete barrier design in the next meeting or two.
Hang on for the next exciting report.
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