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 FHWA Letters on this page
NU-CABLE™ High-Tensoin Cable Barrrier
End Treatments :: NU-CABLE™
NU-GUARD™
Rib-Bak® U-channel Signpost & Delineators
LAP SPLCE™ Breakaway System
SLIP SAFE™ Breakaway System
SLIP SAFE SUPREME ™ Breakaway System
BEND-BAK® Delineators
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NU-CABLE™ (formerly SAFERoads and U.S. High Tension Cable Barrier System)
FHWA Letters
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Letter No. |
Date |
Company |
Description |
Link to FHWA |
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HSA-10 |
1/22/2002 |
Marion Steel Company |
Acceptance of mathmatical chart for varying spaces |
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B-96 |
8/30/2002 |
Marion Steel Company |
posts/attachment hardware for 3-strand cable g.r.@TL-3 |
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B-96A |
10/12/2005 |
Nucor Steel Marion Inc. |
Alternative post design |
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HSA-10 |
10/19/2005 |
Nucor Steel Marion Inc. |
Cable to w-beam transition |
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B-96B |
8/11/2006 |
Nucor Steel Marion Inc. |
20 foot with 5/lb post |
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B-167 |
1/24/2008 |
Nucor Steel Marion Inc. |
TL-4 approval letter(w/ 4lb. Rib-Bak® U-channel post) |
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End Treatments :: NU-CABLE™
FHWA Letters
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Letter No. |
Date |
Company |
Description |
Link to FHWA |
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CC-98 |
4/9/2007 |
Armorflex Ltd. |
International end terminal |
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NU-GUARD™
FHWA Letters
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Letter No. |
Date |
Company |
Description |
Link to FHWA |
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Rib-Bak® U-channel Signpost & Delineators
FHWA Letters
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Letter No.
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Date
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Company
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Description
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Link to FHWA
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SS-05 |
6/15/1987 |
Marion Steel Company |
a. Perforated square steel tube - 2 x 2 in. x 0.105 wall thick. max size.**
b. Single 3 lb/ft steel U-post. **
c. Dual 3 lb/ft steel U-post. **
d. Ariz. dual legged slip base S4x7.7 post
e. Texas dual leg slip base, W12x45 post
f. to g. repeated SS-1 to SS-4 above |
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SS-05A |
7/18/1996 |
Marion Steel Company |
Redesigned RIB-BAK |
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SS-18A |
7/18/1996 |
Marion Steel Company |
Redesigned RIB-BAK |
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LAP SPLCE™ Breakaway System
FHWA Letters
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PDF
Link
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Letter No.
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Date
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Company
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Description
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Link to FHWA
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SS-13 |
8/31/1989 |
Marion Steel |
Single to triple 3 ppf and single or dual 4 ppf Rib-Bak post installations with ground splice.** |
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SS-13A |
10/2/1989 |
Marion Steel |
Clarifies grade of steel to be “SP-80" |
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SS-13B |
12/12/1991 |
Marion Steel |
Permit threaded spacers to lap splice design |
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SS-47 |
9/14/1994 |
South Dakota DOT |
Splicing 3PPF Marion post to 4PPF Franklin Stub |
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SS-83
(Canadian) |
7/19/1999 |
Marion Steel |
Modified Rib-Bak
Canadian post section |
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SLIP SAFE™ Breakaway System
FHWA Letters
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PDF Link
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Letter
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Date
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Company
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Description
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Link to FHWA
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SS-69 |
9/18/1996 |
Safety Quest, Inc |
U-Channel Slip Splice |
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SS-69A |
4/4/1997 |
Safety Quest, Inc. |
Slip Safe in Weak Soil |
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SLIP SAFE SUPREME ™ Breakaway System
FHWA Letters
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Letter No.
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Date
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Company
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Description
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Link to FHWA
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SS-69 |
9/18/1996 |
Safety Quest, Inc |
U-Channel Slip Splice |
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SS-69A |
4/4/1997 |
Safety Quest, Inc. |
Slip Safe in Weak Soil |
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BEND-BAK® Delineators
FHWA Letters
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Letter No. |
Date |
Company |
Description |
Link to FHWA |
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SS-42 |
11/10/1993 |
Marion Steel Co. |
1.12 PPF and 1.33 PPF A-36 Delineator Posts |
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