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1200 New Jersey Ave. S.E.
Washington, D.C. 20590
November 17, 2011
In Reply Refer To:
HSST/B-225
David K. Olson
Design Policy Standards & Research Manager
Washington State Department of Transportation
310 Maple Park Avenue S.E.
Olympia, WA. 98504
Dear Mr. Olson:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
November 18, 2011
In Reply Refer To:
HSST/B-226
Hemal Shah, PE
Conti Enterprises, Inc
2045, Lincoln Highway
Edison, NJ 08817
Dear Mr. Shah:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
November 18, 2011
In Reply Refer To:
HSST/B-228
Mrs. Karla A. Lechtenberg
Midwest Roadside Safety Facility
130 Whittier Research Center
P. O. Box 830853
Lincoln, NE 68583-0853
Dear Mrs. Lechtenberg:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
February 6, 2012
In Reply Refer To:
HSST/B-229
Mr. Terry Colquhoun
Business Development Manager
Ingal Civil Products
57-65 Airds Road
Minto NSW 2566
Australia
Dear Mr. Colquhoun:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
January 12, 2012
In Reply Refer To:
HSST/B-230
Scott Rosenbaugh
Research Associate Engineer
Midwest Roadside Safety Facility UNL
527 Nebraska Hall
P.O. Box 880529
Lincoln Nebraska 68588-0529
Dear Mr. Rosenbaugh:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
March 27, 2014
In Reply Refer To:
HSST/B-230A
Ms. Karla Lechtenberg
Midwest Roadside Safety Facility (MwRSF)
130 Whittier Research Center
2200 Vine Street
Lincoln, NE 68583-0853
Dear Mr. Lechtenberg:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
July 10, 2014 HAND CARRIED BY WL
In Reply Refer To:
HSST/B-231 Revised
Scott Rosenbaugh
Research Associate Engineer
Midwest Roadside Safety Facility UNL
2200 Vine Street
130 Whittier Building
Lincoln NE, 68583-0853
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
June 19, 2020
In Reply Refer
To: HSST-1/B-232B
Greg Neece
Trinity Highway Products, LLC
2525 North Stemmons Freeway
Dallas, Texas 75207
Dear Mr. Sorensen:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
June 19, 2020
In Reply Refer
To: HSST-1/B-232C
Greg Neece
Trinity Highway Products, LLC
2525 North Stemmons Freeway
Dallas, Texas 75207
Dear Mr. Sorensen:
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
June 7, 2013
In Reply Refer To:
HSSD/B-233
Mr. Wolfgang Ganster
Delta Block International GmbH
Industriestrasse 28
A-2601 Sollenau
Germany
Dear Mr. Ganster: