This listing contains breakaway sign supports, mailboxes, and delineators that have been issued an Eligibility Letter by FHWA. The FHWA's Federal-aid eligibility letters are provided as a service to the States and are not a requirement for roadside safety hardware to be eligible for Federal-aid reimbursement. As stated in our eligibility letters, "eligibility for reimbursement under the Federal-aid highway program does not establish approval, certification or endorsement of the device for any particular purpose or use." It is the responsibility of the agency who owns the facility to determine whether or not to use a particular hardware device and how to use it for the particular situation. See AASHTO's Roadside Design Guide and AASHTO's Manual for Assessing Safety Hardware for guidance on selecting the appropriate Test Level (TL) based on traffic using the facility.
These devices have been evaluated in accordance with the AASHTO MASH, NCHRP Report 350 or the 1985 and 1994 AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals. Note that breakaway support hardware that was determined to be eligible under either the 1985 or 1994 editions of the AASHTO specifications were determined to meet the NCHRP Report 350 testing guidelines. However, additional testing and evaluation is necessary to meet the current criteria in MASH.
Code |
Date |
350 |
Manufacturer |
Device Description |
View PDF |
Text Version |
SS-179 |
7/3/2013 |
350 |
Hori-Zone Concepts / Centerline Supply |
Centerline Supply Triangular Slipbase Locking Sign Collar Assembly |
(1.27 MB) |
 |
SS-178 |
2/21/2013 |
350 |
Ground Connection LLC |
Ground Connection Ground Screw Foundation |
(919 KB) |
 |
SS-177 |
2/6/2013 |
350 |
MDSolutions |
Generic Perforated Square Steel Tube Sign Supports |
(681 KB) |
 |
SS-175 |
5/4/2012 |
350 |
Xcessories Squared |
Surface Mount Slip Bases SMSB10-10-G and SMSB8-10-G |
(417 KB) |
 |
SS-174 |
11/23/2011 |
350 |
Trinity Highway Products |
Breakaway Sign Support Systems of Northwest Pipe Company |
(344 KB) |
 |
SS-173 |
8/18/2011 |
350 |
Special Lite |
Generic Aluminum Support Pole |
(67.2 KB) |
 |
SS-172 |
6/23/2011 |
350 |
Dent Breakaway Industries, Inc. |
Omni-Directional Dent Connector Assembly |
(281 KB) |
 |
SS-171 |
5/2/2011 |
350 |
New York State Department of Transportation |
Aluminum Pedestrian Signal Pole |
(422 KB) |
 |
SS-170 |
11/30/2012 |
350 |
Minnesota Department of Transportation |
Minnesota Type "C" and "D" Braced Leg Sign Supports
Supports |
(1.05MB) |
 |
SS-167 |
3/3/2011 |
350 |
Safety Base Ltd. |
Safety Base C10S Couplings |
(84 KB) |
 |
SS-165 |
1/21/2011 |
350 |
Designovations, Inc. |
Snap'n Safe Couplers |
(157 KB) |
 |
SS-164A |
4/18/2016 |
350 |
POZ-LOC® Slip Base System with Torque Separation Nut Fastener |
Fastener Optional Fastening System |
(712 KB) |
 |
SS-164 |
6/18/2010 |
350 |
Northwest Pipe Company |
Poz-Loc 10 inch square slip base system |
(325 KB) |
 |
SS-163 |
4/2/2010 |
350 |
Information Display Company |
IDC Speed Check Radar Speed Display Devices |
(2.48 MB) |
 |
SS-162 |
2/2/2010 |
|
Rick Balboa |
Balboa 100 Traffic Warning Device |
(76 KB) |
 |
SS-161 |
1/26/2010 |
|
Spot Devices |
IDC Speed Check Radar Speed Display Devices |
(185 KB) |
 |
SS-160 |
9/23/2009 |
|
Oregon DOT |
Douglas Fir No. 1 and Hemlock Fir Select Structural. |
(272 KB) |
 |
SS-159 |
1/26/2009 |
|
Roadway Construction Products, Inc. |
Omni-directional I-beam slip base support for wide flange beams |
(692 KB) |
 |
SS-158 |
2/12/2008 |
|
ACS Inc. |
Light Camera mounted on Pelco Pole |
(988 Kb) |
 |
SS-157 |
12/6/2007 |
|
Addresses of Distinction |
Aluminum tube, alloy 6063-T52, diameters 2.375 and 2.875 inches. References SS-28. |
(213 Kb) |
 |
SS-156 |
12/6/2007 |
|
Designovations |
SNAPnSAFE couplers for: round surface mount, u-channel surface and in-ground mount. |
(1.78 Mb) |
 |
SS-155 |
10/2/2007 |
|
JSF Technolgies |
Solar powered Beacon attached to PSST post and ‘Kleen Break’ coupling (SS-131) |
(716 Kb) |
 |
SS-154 |
10/25/2007 |
|
Trueform |
Bus stop sign support system |
(1.94 Mb) |
 |
SS-153 |
8/17/2007 |
|
International FiberLok |
Composite Fiberglass I-beam Sign support |
(756 Kb) |
 |
SS-152 |
8/23/2007 |
|
Northwest Pipe Company |
Direct bury PSST post into 30" PSST anchor (2.25" post max.) |
(613 Kb) |
 |
SS-151 |
7/25/2007 |
|
SHUR-TITE Products |
Mailbox Support |
(1.66 MB) |
 |
SS-150 |
6/14/2007 |
|
Northwest Pipe Company |
Poz-Loc 8 inch square slip base |
(134 KB) |
 |
SS-149 |
6/14/2007 |
|
Carmanah Technologies |
Beacon mounted on square tube post utilizing a Kleen Break frangible coupling. |
(247 KB) |
 |
SS-148A |
8/16/2011 |
350 |
Swing Safe |
SwingSAFE Swing-Away Mailbox Support |
(130 KB) |
 |
SS-148 |
5/8/2007 |
|
Minnesota DOT |
Mailbox Support |
(893 KB) |
No Text version is available |
SS-147 |
4/6/2007 |
|
Wright County, MN |
Generic U-channel sign post attached to PSST sign support. |
(271 KB) |
 |
SS-146 |
3/16/2007 |
|
Designovations |
Snap N Safe round coupler |
(340 KB) |
 |
SS-145 |
2/5/2007 |
|
SteelCity Partners |
Fundaflex sign support |
(2.25 MB) |
 |
SS-144 |
1/23/2007 |
|
ARC Technologies |
Precast Mailbox |
(880 Kb) |
 |
SS-143 |
11/29/2006 |
|
Carmanah Technologies |
Ground mounted sign support |
(650 Kb) |
 |
SS-142 |
2/28/2007 |
|
Dent Breakaway Industries |
Omni directional slip base accommodates round and square posts for dual post supports |
(447 Kb) |
 |
SS-141 |
8/29/2006 |
|
POCO Inc. |
groundmounted
Ground-Mounted Sign Support |
(322 Kb) |
 |
SS-139 |
7/7/2006 |
|
Clifford Dent |
Dent Fuse Plates |
(0.99 MB) |
 |
SS-138 |
6/13/2006 |
|
Special Lite Products Company |
Smooth Wall Aluminum Poles |
(94 Kb) |
 |
SS-137 |
6/13/2006 |
|
Brandon Industries |
Decorative Sign Supports |
(131 Kb) |
 |
SS-136 |
3/9/2006 |
|
Designovations |
Modifications to Designovation Breakaway Device, for sizes 2 1/2 inches and smaller. |
(705 KB) |
 |
SS-135 |
5/7/2007 |
|
All Traffic Solution |
Radar Speed Display on a Slip Base Support |
(100 KB) |
 |
SS-134C |
2/6/2013 |
|
Xcessories Squared |
Xcessories Squared Redi-Torque Triangular Slip Base |
(351 KB) |
 |
SS-134B |
3/30/2012 |
|
Xcessories Squared |
Xcessories Squared Redi-Torque Triangular Slip Base
Xcessories Squared Redi-Torque Triangular Slip Base Top (10 3/8”) with galvanized keeper plate
Top (10 3/8”) with galvanized keeper plate |
(587 KB) |
 |
SS-134A |
4/9/2007 |
|
Xcessories Squared |
Addendum that modifies the slip base receiver |
(143 KB) |
 |
SS-134 |
5/9/2006 |
|
Xcessories Squared |
"Redi-Torque" Model 280 Hardware Kit |
(44 KB) |
 |
SS-133 |
4/13/2006 |
|
City of Spokane / Texas Trans. Inst. |
Upost, Steel tube, Slip Base |
(349 Kb) |
 |
SS-132 |
2/9/2006 |
|
Sign Support Systems |
Break Out Coupler |
(118 Kb) |
 |
SS-131A |
5/15/2012 |
|
Xcessories Squared |
Keen Break Coupler |
(690 KB) |
 |
SS-131 |
12/2/2005 |
|
Xcessories Squared |
PSST Coupling |
(117 Kb) |
 |
SS-130 |
1/6/2006 |
|
Northwest Pipe Company |
PSST Slip Base |
(323 Kb) |
 |
SS-128 |
6/14/2007 |
|
Northwest Pipe Company |
Poz Loc Slipbase Casting 2709 |
(62.5 KB) |
 |
SS-127 |
2/23/2005 |
|
Ultimate Highway Products, Inc. |
Slip-Mate Slip Base |
(1.16 MB) |
 |
SS-126B |
5/6/2014 |
350 |
Trinity Highway Products |
Perforated Square Steel Tube Sign Supports |
(1.44 MB) |
 |
SS-126A |
11/24/2010 |
|
Northwest Pipe Company |
Northwest Pipe's Performance Post |
(1.47 MB) |
 |
SS-126 |
12/21/2004 |
|
Northwest Pipe Company |
Perforated Square Steel Tubes |
(87.9 KB) |
 |
SS-125 |
8/17/2004 |
|
Friend Innovations |
Breakaway mailbox support |
(66 Kb) |
 |
SS-124 |
4/1/2004 |
|
Ultimate Highway Products, Inc. |
Slip-Mate |
(41 Kb) |
 |
SS-123# |
2/28/2007 |
|
Designovations |
Snap N Safe coupling for square sign supports |
(311 Kb) |
 |
SS-123 |
4/1/2004 |
|
Designovations, Inc. |
Breakaway system for fiberglass square tube sign |
(82 KB) |
 |
SS-122 |
2/12/2004 |
|
Caminoverde, Inc. |
Breakaway mailbox support |
(49 Kb) |
 |
SS-121 |
12/30/2003 |
|
Metropolitian Transportation Commission |
MTC Safe ITS Callbox on ABChance augured foundation four bolt slipbase |
(38 Kb) |
 |
SS-120 |
4/1/2004 |
|
Designovations, Inc. |
Breakaway system for perforated square steel tube sign posts |
(102 KB) |
 |
SS-119 |
2/27/2003 |
|
Northwest Pipe Company |
Square Slipbase, PozLoc in weak soil, and Pozloc Mailbox |
(63 KB) |
 |
SS-118 |
4/30/2003 |
|
HWYCOM |
Universal Anchor System Triangular slip base for Small Sign Support Installation |
(22 Kb) |
 |
SS-117 |
11/13/2003 |
|
Northwest Pipe Company. Traffic Systems |
PozLoc system |
(87Kb) |
 |
SS-116 |
11/22/2002 |
|
Valley Forge & Bolt Manufacturing Co. |
Use of load indicating fasteners in slip bases |
(2.48 Mb) |
 |
SS-115A |
10/23/2013 |
350 |
Trinity Highway Products |
U-Bracket Sign Support |
(1.68 MB) |
 |
SS-115 |
11/13/2002 |
|
MaxiStrut |
T-Top or U-Top to pipe sign support when placed on a standard triangular slip base |
(81Kb) |
 |
SS-114 |
11/25/2002 |
|
Ssquare Tube Products |
NEX Tube Mailbox Support |
(1.15 Mb) |
 |
SS-113 |
10/17/2002 |
|
Intellistrobe Safety System |
Intellistobe signal system |
(596 Kb) |
 |
SS-112 |
4/16/2002 |
|
K&K Systems |
Flashing Light Warning Apparatus |
(549 Kb) |
 |
SS-109 |
8/16/2002 |
|
Prairie Proto Products |
Swing-away Mailbox Support and Delineators |
(227 Kb) |
 |
SS-108 |
10/22/2002 |
|
Glenncast, Inc. |
Aluminum Sign Poles with Decorative Castings |
(2 Mb) |
 |
SS-107 |
4/9/2002 |
|
Town of Waterford, CT |
2 PPF U-channel sign supports |
(74 Kb) |
 |
SS-106 |
3/13/2002 |
|
Trinity Industries |
Dent Bolt Two Slip Base posts in seven foot path |
(100 Kb) |
 |
SS-105 |
3/13/2002 |
|
Metro Sign |
2 inch square aluminum post on u-channel stub |
(79 Kb) |
 |
SS-103 |
12/14/2001 |
|
Marion Steel Company |
Slip Safe for use with square steel tube posts |
(25 Kb) |
 |
SS-101 |
12/12/2001 |
|
BMK Corporation |
Polecrete Postloc foaming polyurethane backfill product |
(20 Kb) |
 |
SS-99 |
10/23/2001 |
|
Transpo Industries, Inc. |
Dual and Triple Posts on double-necked couplings |
(630 kb) |
 |
SS-98 |
8/29/2001 |
|
Skydril |
Cast coupler for u-channels |
(185 kb) |
 |
SS-97 |
7/20/2001 |
|
Safety Base LTD |
Breakaway Sign Post Couplings |
(407 kb) |
 |
SS-96 |
7/20/2001 |
|
Poly-set |
Expanding Foam Backfill Material |
(126 kb) |
 |
SS-95 |
3/28/2001 |
|
Franklin Industries |
Ribbed Back version of u-channel post |
(28 kb) |
 |
SS-94 |
3/1/2001 |
|
Granger and Associates |
Partially Threaded spacer bar for u-channel posts. |
(105 kb) |
 |
SS-92 |
1/29/2001 |
|
Tremex |
Plastic post, steel foundation delineator system |
(172 kb) |
 |
SS-91 |
12/2/2002 |
|
Quickfix Couplers |
Cast Aluminum couplers for single or dual PSST or round pipe posts |
(2.66Mb) |
 |
SS-90 |
8/18/2000 |
|
K&K Systems, Inc. |
School Warning Signs with flashing lights, battery, solar panel and Marion Slip-Safe system. |
(12.5 Mb) |
 |
SS-88 |
8/15/2000 |
|
Poz-Loc Traffic Systems; Northwest Pipe Company |
Single and Dual Slip base system for square tube supports |
(4.9 Mb) |
 |
SS-87 |
6/6/2000 |
|
Ericsson Manufacturing |
Precast Concrete Foundation for Small Sign Supports |
(1.6 Mb) |
 |
SS-86 |
12/15/1999 |
|
Woodguard Lumber Corporation |
89-mm polyethylene coated sign post |
(1.3 Mb) |
 |
SS-85 |
7/31/2000 |
|
Unistrut Distribution Company |
Poletech with PUB - Plastic Bung for Square Signs February 2000 |
(2.8 Mb) |
 |
SS-84 |
7/26/1999 |
|
Los Angeles County SAFE |
Comarco Wireless Technologies TTY Call Box Support |
(4.0 Mb) |
 |
SS-83 |
7/19/1999 |
|
Marion Steel |
Modified Rib-Bak - Canadian post section |
(1.4 Mb) |
 |
SS-82 |
6/21/1999 |
|
St. Louis Steel |
Perforated square steel tube sign suppports. |
(1.8 Mb) |
 |
SS-81 |
1/20/1999 |
|
S-Square Tube Products |
NEX-TUBE 50.8-mm octagonal steel, 12 or 14 gage tubes in anchor or direct bury, strong and weak soil |
(151 Kb) |
 |
SS-80 |
7/25/1998 |
|
Dottie Aberlie USAberlie |
USAberlie Post Exchanger alum.base for 4x4 wood posts and 64-mm perf. square steel tubes in strong soil |
(151 Kb) |
 |
SS-79 |
4/15/1998 |
|
Lewis Rhodes
HwyCom Inc |
76-mm OD, 3.175-mm fiberglass posts in Universal Anchor System Bolt-Down Base |
(150 Kb) |
 |
SS-78A |
2/21/2001 |
|
SMI Steel - Southern Post |
Add 3 PPF post |
(90 Kb) |
 |
SS-78 |
2/3/1998 |
|
SMI Steel - Southern Post |
Steel Flanged Channel Sign Posts up to 3.7 kg/m |
(169 Kb) |
 |
SS-77 |
6/28/1997 |
|
Chicago Heights Steel |
"Eze-erect" type breakaway system using Gr 9 bolts. |
(80 Kb) |
 |
SS-76 |
1/9/1998 |
|
New Hampshire DOT |
Certain thin walled Aluminum pipe and steel u-channels |
(89 Kb) |
 |
SS-75 |
4/9/1997 |
|
Universal Anchor Systems, Inc |
Universal Anchor System with HWYCOM and POZLOC posts |
(90 Kb) |
 |
SS-74 |
3/14/1997 |
|
Granger and Assoc |
"ANYTWO" bracer bar for splicing u-channels |
(375 Kb) |
 |
SS-73 |
2/24/1997 |
|
PennDot |
"Universal" Spacer Bar for splicing u-channels |
(85 Kb) |
 |
SS-72A |
10/27/2000 |
|
TAPCO |
V-Loc Sign Support |
(92 Kb) |
 |
SS-72 |
1/13/1997 |
|
TAPCO |
V-Loc Sign Support System |
(868 Kb) |
 |
SS-71 |
12/23/1996 |
|
Davidson Plastics |
Flexi - Guide Delineator Posts |
(83 Kb) |
 |
SS-70 |
9/25/1996 |
|
Richard Buhler |
Sleeve it N Go for 4x4 wood posts |
(106 Kb) |
 |
SS-69A |
4/4/1997 |
|
Safety Quest, Inc. |
Slip Safe in Weak Soil |
(259 Kb) |
 |
SS-69 |
9/18/1996 |
|
Safety Quest, Inc |
U-Channel Slip Splice |
(90 Kb) |
 |
SS-68H |
12/26/2001 |
|
Xcessories Squared |
Modification to 8-inch 3-bolt slip bases – Revised concrete footer for weak soil |
(385 Kb) |
 |
SS-68G |
12/26/2001 |
|
Xcessories Squared |
Modification to 10-inch 3-bolt slip bases – Three within a 7 foot span |
(727 Kb) |
 |
SS-68F |
12/20/2000 |
|
Xcessories Squared |
Modification to 3-bolt base |
(85 Kb) |
 |
SS-68E |
12/9/1999 |
|
Xcessories Squared |
Modification to 10-inch, 3-boltslip base |
(85 Kb) |
 |
SS-68D |
2/22/1999 |
|
X-Cessories Squared |
3-bolt slip base, 10-inch variety |
(360 Kb) |
 |
SS-68C |
10/22/1997 |
|
X-Cessories Squared |
3-bolt slip base for perf. square steel posts. Accepted previously via SS-52 on 2/8/65 under different name |
(84 Kb) |
 |
SS-68B |
10/7/1997 |
|
X-Cessories Squared |
Slip Base for Retrofit Square Steel Tube Posts |
(892 Kb) |
 |
SS-68A |
12/20/1996 |
|
X-Cessories Squared |
Slip Base, Triple Square supports in Standard soil |
(80 Kb) |
 |
SS-68 |
9/18/1996 |
|
X-Cessories Squared |
Slip Base (8-inch) for Square Steel Tube posts ** |
(373 Kb) |
 |
SS-67A |
3/4/2016 |
|
Franklin Industries Co. |
Franklin Base Bolted Sign Support |
(655 KB) |
 |
SS-67 |
9/9/1996 |
|
Franklin Industries |
60 KSI U-Channel Posts recertification |
(128 Kb) |
 |
SS-66 |
8/8/1996 |
|
HwyCom |
Universal Anchor System for FRP & Poz Loc Posts |
(218 Kb) |
 |
SS-65B |
12/3/1997 |
|
Southwestern Pipe |
Remove proprietary restrictions |
(79 Kb) |
 |
SS-65A |
6/20/1997 |
|
Southwestern Pipe |
Poz-Loc slip base and Yielding Anchor System in weak soil |
(95 Kb) |
 |
SS-65 |
9/5/1996 |
|
Southwestern Pipe |
Poz-Loc Slip Base** |
(392 Kb) |
 |
SS-64 |
7/18/1996 |
|
Marion Steel |
Metric "Rib-Bak 2" Posts |
(81 Kb) |
 |
SS-63 |
7/2/1996 |
|
S Square Tube Products |
Perforated square steel tube sign supports |
(184 Kb) |
 |
SS-62 |
6/3/1996 |
|
Western Highway Products |
ULTI-MATE perforated square steel tube sign supports |
(191 Kb) |
 |
SS-61 |
2/27/1996 |
|
|
Revised Oregon multi-directional slip base |
(86 Kb) |
 |
SS-60B |
6/20/1997 |
|
Clifford Dent |
Additional bolt designs |
(7.2 Mb) |
 |
SS-60A |
10/21/1996 |
|
Clifford Dent |
Larger bolts with same necked-down diameter |
(4.4 Mb) |
 |
SS-60 |
10/27/1995 |
|
Clifford Dent |
Coupling for sign supports |
(2.6 Mb) |
 |
SS-59A |
4/19/1996 |
|
Chicago Heights Steel |
Modify design to use "bar spacer" |
(186 Kb) |
 |
SS-59 |
3/7/1996 |
|
Chicago Heights Steel |
Dual 3 ppf u-channel in strong soil |
(169 Kb) |
 |
SS-58 |
9/27/1995 |
|
Flexstake |
Flexible delineator posts |
(150 Kb) |
 |
SS-57A |
7/18/1996 |
|
Marion Steel Company |
Redesigned Rib-Bak |
(80 Kb) |
 |
SS-57 |
9/26/1995 |
|
|
Minuteman coupler on Triple 3ppf and 4ppf (w/soil plate on 4ppf),in all soils. |
(88 Kb) |
 |
SS-56B |
7/18/1996 |
|
Marion Steel Company |
Redesigned Rib-Bak |
(80 Kb) |
 |
SS-56A |
3/14/1996 |
|
Marion Steel Company |
Modify design to use "bar spacer" |
(115 Kb) |
 |
SS-56 |
7/13/1995 |
|
Marion Steel Company |
"Lap Splice" for triple 3ppf and 4ppf in both soils |
(89 Kb) |
 |
SS-55 |
4/24/1995 |
|
Colorado Dept. of Transportation |
4 x 6 Wood posts installed sideways |
(80 Kb) |
 |
SS-54 |
3/28/1995 |
|
Chicago Heights Steel |
U-channel posts to 4 PPF in "EZE-Erect" configurations |
(823 Kb) |
 |
SS-53A |
3/19/1996 |
|
Lancaster Composite |
Direct Bury acceptance of some SS-53 posts in std soil** |
(135 Kb) |
 |
SS-53 |
3/9/1995 |
|
Lancaster Composite |
Concrete-filled fiberglass posts |
(171 Kb) |
 |
SS-52A |
10/22/1997 |
|
Xcessories Squared |
Reference letters to Unistrut and Allied Highway Sales |
(85 Kb) |
 |
SS-52 |
2/8/1995 |
|
Xcessories Squared |
Three-Bolt Slip Base (same as SS-24) (Letter was originally written to Allied Highway Sales, but hardware is manufactured by Xcessories Squared.) |
(81 Kb) |
 |
SS-51 |
1/23/1995 |
|
Unistrut Corp. |
A570 Perforated Square Steel Posts W/60 ksi yield |
(187 Kb) |
 |
SS-50 |
11/8/1994 |
|
|
Virginia's 5x5 unmodified single wood post in soil-cement foundation ** |
(84 Kb) |
 |
SS-49 |
10/26/1994 |
|
Galvacor |
2 PPF U-channel A-36 steel delineator posts |
(85 Kb) |
 |
SS-48A |
6/22/1998 |
|
SAFE Installation Company |
SAFE foundation for “Penn Dot Type A Two-Legged” highway signs |
(188 Kb) |
 |
SS-48 |
9/23/1994 |
|
SAFE, Inc |
Safe Foundation and Anchors base for breakaway couplings |
(84 Kb) |
 |
SS-47 |
9/14/1994 |
|
South Dakota DOT |
Splicing 3PPF Marion post to 4PPF Franklin Stub |
(83 Kb) |
 |
SS-46A |
9/21/1995 |
|
|
Dual Unmodified Cedar Posts full dimension 4"x6" |
(84 Kb) |
 |
SS-46 |
6/17/1994 |
|
|
Single Unmodified Cedar Post full dimension 4"x6" |
(84 Kb) |
 |
SS-45 |
5/11/1994 |
|
|
Drilled Wood posts in concrete foundations, Pennsylvania designs ** |
(91 Kb) |
 |
SS-44 |
3/30/1994 |
|
Unistrut Corp. |
14-gage A715 Gr 60 Perf. Square Steel posts * |
(86 Kb) |
 |
SS-43 |
1/18/1994 |
|
VSAR Systems |
Speed-E-Rect breakaway device for U-channels |
(135 Kb) |
 |
SS-42 |
11/10/1993 |
|
Marion Steel Co. |
1.12 PPF and 1.33 PPF A-36 Delineator Posts |
(83 Kb) |
 |
SS-41A |
1/28/1998 |
|
Richard Strizki |
Design revisions to New Jersey Breakaway Sign System. |
(486 Kb) |
 |
SS-41 |
11/8/1993 |
|
Richard Strizki |
Load Concentrating Coupling and Adjustable Anchor and Bracket Assembly |
(230 Kb) |
 |
SS-40 |
10/27/1993 |
|
Unistrut Corp. |
2" Square Perforated Steel Tube, One Post, Direct Bury |
(80 Kb) |
 |
SS-39A |
6/24/1994 |
|
Recycled Plastic Products, Inc. |
Smaller diameter tubes |
(77 Kb) |
 |
SS-39 |
10/25/1993 |
|
Recycled Plastic Prod.,Inc |
3.5" x 3.5" Recycled Plastic Small Sign Support |
(86 Kb) |
 |
SS-38A |
10/22/1997 |
|
Xcessories Squared |
Reference Xcessories Squared as the Manufacturer |
(85 Kb) |
 |
SS-38 |
10/27/1993 |
|
Unistrut Corp. |
Telespar Cast Iron Three-Bolt Slip Base |
(358 Kb) |
 |
SS-37 |
8/13/1993 |
|
Greenline |
Recycled Thermoplastic Delineator Posts |
(148 Kb) |
 |
SS-36A |
4/22/2014 |
350 |
Michigan DOT |
Breakaway Wood Sign Supports with Lag Screws |
(1.23 MB) |
 |
SS-36 |
9/3/1993 |
|
|
Large and Small Sign Supports (See memo for details on various Wood, U-Channel, Perf.Sq.Steel Tube, Slip Base, FRP posts.) |
(2,408 Kb) |
 |
SS-35 |
5/28/1993 |
|
Imperial, Inc |
Aluminum tube 2.375" diameter |
(83 Kb) |
 |
SS-34 |
3/20/1993 |
|
Louisiana DOTD |
Omni Directional Slip Base, 3.5" diameter post |
(184 Kb) |
 |
SS-33 |
10/29/1992 |
|
Transpo Industries, Inc. |
201C and 301C Pole-Safe couplings for Motorist Aid Call Box Supports |
(277 Kb) |
 |
SS-32 |
10/28/1992 |
|
|
Western Red Cedar for Breakaway Wood Supports |
(79 Kb) |
 |
SS-31 |
10/22/1992 |
|
Allied Tube and Conduit |
Single Perforated Square Steel Tube 2 ½" 12 ga in 7 ga anchor |
(78 Kb) |
 |
SS-30A |
10/5/1992 |
|
Hapco Division |
Extend range of pole heights and correct aluminum spec called for in SS-30 |
(80 Kb) |
 |
SS-30 |
9/17/1992 |
|
Hapco Division |
Cast Aluminum Shoe Base for Motorist Aid Call box Supports |
(249 Kb) |
 |
SS-29 |
7/15/1992 |
|
A.B. Chance |
Helical Screw Foundations for Motorist Aid Call boxes |
(335 Kb) |
 |
SS-28 |
5/26/1992 |
|
|
3 ½" Diam. Thin Walled Aluminum Tube
Single Spliced (6" c-c) Marion Steel or Franklin Steel 4 ppf U-channel post |
(494 Kb) |
 |
SS-27 |
5/15/1992 |
|
Montana D.O.T. |
Round wood post supports |
(84 Kb) |
 |
SS-26 |
2/11/1992 |
|
Unistrut Corp. |
Telespar square perf. tube small sign supports without sleeve around base post. |
(78 Kb) |
 |
SS-25 |
6/4/1991 |
|
|
a. Single or dual 4"x4" wood, undrilled
b. Single 6"x8" wood with 3.0" holes
c. Single 6"x6" wood with 2.0" holes
d. Single 4"x6" wood with 1.5" holes
e. Dual W6x12 steel post on slip base
(up to 18 ppf for dual supports OK |
(106 Kb) |
 |
SS-24A |
10/22/1997 |
|
Xcessories Squared |
Reference Xcessories Squared as the manufacturer. |
(86 Kb) |
 |
SS-24 |
5/1/1991 |
|
Unistrut Corp. |
Triangular Slip Bases for Square Tube Sign Supports. |
(914 Kb) |
 |
SS-23 |
3/14/1991 |
|
|
New Jersey Breakaway Couplings |
(145 Kb) |
 |
SS-22A |
8/22/1999 |
|
Trus Joist McMillan |
Reissue |
(79 Kb) |
 |
SS-22 |
1/4/1991 |
|
Trus Joist Corporation |
Type "L" MICRO=LAM with revised saw cut |
(130 Kb) |
 |
SS-21 |
12/26/1990 |
|
Minute Man Breakaway |
MMB-1HD breakaway device with two 3 #/ft flanged channel "U" posts in both strong and weak soil. |
(171 Kb) |
 |
SS-20 |
9/20/1990 |
|
Franklin Steel |
2 to 3 pound-per-foot flanged channel "U" posts. |
(83 Kb) |
 |
SS-19 |
7/31/1990 |
|
Allied Tube and Conduit |
Square-Fit signpost systems. |
(82 Kb) |
 |
SS-18A |
7/18/1996 |
|
Marion Steel Company |
Redesigned Rib-Bak |
(80 Kb) |
 |
SS-18 |
6/19/1990 |
|
Minute Man Breakaway |
MMB-1HD breakaway device for use with two 3 #/ft flanged channel "U" posts in strong soil. (see SS-21 for weak soil acceptance letter) |
(87 Kb) |
 |
SS-17C |
7/10/2003 |
|
Transpo Industries, Inc. |
Type A Break Safe System sign support system |
(20 Kb) |
 |
SS-17B |
4/25/1995 |
|
Transpo Industries |
Type A breakaway coupling accepted for use with dual square steel tube supports |
(79 Kb) |
 |
SS-17A |
3/7/1995 |
|
Transpo Industries |
Type A breakaway coupling accepted for use with single square steel tube supports. |
(235 Kb) |
 |
SS-17 |
1/8/1990 |
|
Transpo Industries |
Type A and Type B breakaway couplings.(If installed by direct burial, then Type AUX for S-1 soil only.)
(Posts limited to 45 #/ft below the hinge.) |
(745 Kb) |
 |
SS-16 |
12/29/1989 |
|
Minute Man Breakaway |
MMB-1HD breakaway device for use with 3 #/ft. steel flanged channel "U"-posts. |
(318 Kb) |
 |
SS-15 |
12/12/1989 |
|
|
Single 3" and 4" diameter Aluminum, 3/16" wall, direct burial tube. ** |
(85 Kb) |
 |
SS-14 |
10/27/1989 |
|
Marion Steel |
Rib-Bak Post with Minuteman Coupling ** |
(77 Kb) |
 |
SS-13D |
7/18/1996 |
|
Marion Steel Company |
Redesigned Rib-Bak |
(80 Kb) |
 |
SS-13C |
12/27/1991 |
|
Marion Steel |
Project by project acceptance of Florida's splice in both soil types |
(85 Kb) |
 |
SS-13B |
12/12/1991 |
|
Marion Steel |
Permit threaded spacers to lap splice design |
(81 Kb) |
 |
SS-13A |
10/2/1989 |
|
Marion Steel |
Clarifies grade of steel to be “SP-80" |
(80 Kb) |
 |
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. ** |
(149 Kb) |
 |
SS-12 |
8/3/1989 |
|
HwyCom Corp. |
Dual post installations of 3-inch FRP. |
(465 Kb) |
 |
SS-11 |
5/18/1989 |
|
Allied Tube & Conduit |
Quick-Punch post - Max size 2.25 x 2.25" x 14 ga. in unreinforced 12 ga. sleeve base. |
(81 Kb) |
 |
SS-10 |
5/11/1989 |
|
HwyCom Corp. |
3-Inch Diameter, 1/8 in. wall, fiber-reinforced plastic post. (see SS-12) |
(462 Kb) |
 |
SS-09B |
10/17/1996 |
|
Franklin Steel |
Dual EZE-Erect in strong soil. |
(83 Kb) |
 |
SS-09A |
4/7/1989 |
|
Franklin Steel |
Specify steel as ASTM A499-81, Grade 60 |
(79 Kb) |
 |
SS-09 |
3/16/1989 |
|
Franklin Steel |
EZE-Erect Sign Posts - max 4.0 lb/ft flanged posts |
(465 Kb) |
 |
SS-08 |
3/31/1989 |
|
Unistrut Corp. |
TELESPAR small sign supports max size 2 ½ x 2 ½ in. x 12 ga. |
(442 Kb) |
 |
SS-07 |
9/1/1988 |
|
|
Wisconsin Large Sign Support System - slip base w/no upper hinge, sign attachment clips provide for release, W12x22 posts tested |
(83 Kb) |
 |
SS-06 |
3/10/1988 |
|
Minute Man Anchors, Inc. |
Breakaway coupling for use with steel flanged channel supports. ** |
(497 Kb) |
 |
SS-05A |
7/18/1996 |
|
Marion Steel Company |
Redesigned Rib-Bak |
(80 Kb) |
 |
SS-05 |
6/15/1987 |
|
|
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 |
(2,465 Kb) |
 |
SS-04 |
1/29/1987 |
|
Minute Man Anchors, Inc. |
Breakaway coupling for use with 3 lb/ft steel flanged channel post (superseded by new hardware on 3/10/88. See SS-6) ** |
(916 Kb) |
 |
SS-03 |
10/3/1986 |
|
Allied Tube & Conduit Corp. |
QWIK-PUNCH tube system - max size 2 1/4 x 2 1/4 in. x 12 ga. post set in reinforced sleeve base. |
(117 Kb) |
 |
SS-02 |
8/19/1986 |
|
Trus Joist Corp. |
MICRO-LAM - 14 7/8 X 7 7/8 in. box section plywood post. Tested in S-2 soil. |
(483 Kb) |
 |
SS-01A |
7/14/1986 |
|
Southwestern Pipe, Inc. |
Poz-Loc 2 posts |
(453 Kb) |
 |
SS-01 |
7/14/1986 |
|
Southwestern Pipe, Inc. |
POZ-LOC anchor system - 2 3/8 in. O.D. posts, max .095 in. wall thickness. ** |
(175 Kb) |
 |
xx02 |
10/17/1996 |
|
Franklin Industries |
Dual EZE-Erect in Strong Soil |
(83Kb) |
 |