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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
SPLICE™ 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
|
|
|
HSA-10 |
1/22/2002 |
Marion Steel Company |
Acceptance of Mathematical Chart for Varying Spaces
|
|
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B-96
|
8/30/2002
|
Marion Steel Company |
TL-3 Acceptance
for 3-strand cable system
|
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B-96A
|
10/12/2005
|
Nucor Steel
Marion Inc.
|
Alternative
post design
|
|
|
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 Acceptance
letter(w/ 4lb. Rib-Bak® U-channel post)
|
|
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B-183
|
7/25/2006
|
Nucor Steel
Marion Inc.
|
Use of
Plastic or Steel Sockets; Use of driven steel
sockets
|
|
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B-184
|
12/9/2008
|
Nucor Steel
Marion Inc.
|
Extended
Hanging Hook
|
|
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B-184A
|
9/23/2009
|
Nucor Steel
Marion Inc.
|
TL-4 20
Foot Post Spacing
|
|
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B-193
|
7/27/2009
|
Nucor Steel
Marion Inc.
|
Nu-Cable
4-Cable Median Barrier on 1V:4H Slopes
|
|
End Treatments
:: NU-CABLE™
FHWA Letters
|
|
Letter No.
|
Date
|
Company
|
Description
|
|
|
CC-76 |
8/29/2002 |
TTI |
CRP Anchor System |
|
|
CC-98 |
4/9/2007 |
Armorflex Ltd. |
International end terminal |
|
|
CC-105 |
7/10/2009 |
Armorflex Ltd. |
Armorwire ATE-4 |
|
|
CC-105A |
10/23/2009 |
Armorflex Ltd. |
Armorwire ATE-3 |
|
NU-GUARD™
FHWA Letters
|
|
Letter No.
|
Date
|
Company
|
Description
|
|
|
B-162 |
9/11/2007 |
Nucor Steel Marion Inc. |
NU-GUARD-27™ & NU-GUARD-31™ |
|
|
B-162B |
6/27/2008 |
Nucor Steel Marion Inc. |
NU-GUARD-31™ TL-4 |
|
|
B-185 |
12/8/2008 |
Nucor Steel Marion Inc. |
Blocked Out W-beam 27 to 31 inch Heights |
|
|
B-186 |
8/3/2009 |
Nucor Steel Marion Inc. |
Nu-Guard-27™ Posts Mixed with
Standard Strong Post Guardrail |
|
Rib-Bak® U-channel Signpost & Delineators
FHWA Letters
|
|
Letter No.
|
Date
|
Company
|
Description
|
|
|
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
|
|
|
SS-05A
|
7/18/1996
|
Marion
Steel Company
|
Redesigned
RIB-BAK
|
|
|
SS-18A
|
7/18/1996
|
Marion
Steel Company
|
Redesigned
RIB-BAK
|
|
LAP SPLICE™
Breakaway System
FHWA Letters
|
PDF
Link
|
Letter No.
|
Date
|
Company
|
Description
|
|
|
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.**
|
|
|
SS-13A
|
10/2/1989
|
Marion
Steel
|
Clarifies
grade of steel to be “SP-80"
|
|
|
SS-13B
|
12/12/1991
|
Marion
Steel
|
Permit
threaded spacers to lap splice design
|
|
|
SS-13C
|
12/27/1991
|
Marion
Steel
|
Weak Soil
Testing
|
|
|
SS-13D
|
7/18/1996
|
Marion
Steel
|
Post Cross-Section
Modification
|
|
|
SS-47
|
9/14/1994
|
South
Dakota DOT
|
Splicing
3PPF Marion post to 4PPF Franklin Stub
|
|
|
SS-56
|
07/13/1995
|
Marion
Steel
|
3#/ft
& 4#/ft
|
|
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SS-56A
|
03/14/1996
|
Marion
Steel
|
Lap Splice
Bar Spacer Modification
|
|
|
SS-56B
|
07/18/1996
|
Marion
Steel
|
Post Cross-Section
Modification
|
|
|
SS-83
(Canadian)
|
7/19/1999
|
Marion
Steel
|
Modified
Rib-Bak
Canadian post section
|
|
SLIP
SAFE™ Breakaway System
FHWA Letters
|
PDF Link
|
Letter
|
Date
|
Company
|
Description
|
|
|
SS-69
|
9/18/1996
|
Safety
Quest, Inc
|
U-Channel
Slip Splice
|
|
|
SS-69A
|
4/4/1997
|
Safety
Quest, Inc.
|
Slip Safe
in Weak Soil
|
|
|
SS-103
|
|
Marion
Steel
|
Square
Tube
|
|
SLIP
SAFE SUPREME™ Breakaway System
FHWA Letters
|
|
Letter No.
|
Date
|
Company
|
Description
|
|
|
SS-69
|
9/18/1996
|
Safety
Quest, Inc
|
U-Channel
Slip Splice
|
|
|
SS-69A
|
4/4/1997
|
Safety
Quest, Inc.
|
Slip Safe
in Weak Soil
|
|
BEND-BAK® Delineators
FHWA Letters
|
|
Letter No.
|
Date
|
Company
|
Description
|
|
|
SS-42
|
11/10/1993
|
Marion Steel
Co.
|
1.12 PPF and
1.33 PPF A-36 Delineator Posts
|
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