709.1-STEEL BARS FOR CONCRETE REINFORCEMENT: All plain and deformed bar reinforcement shall meet the requirements of AASHTO M31. The manufacturer shall also be an active member in the National Transportation Product Evaluation Program (NTPEP) as well as conform to the requirements of MP 709.01.55. 709.1.1-Stainless St eel Bars for Concrete Reinforcement: For corrosion resistant stainless steel, the material shall meet testing requirements of tensile, yield, elongation, and bend requirements listed in ASTM A955 and meet requirements set forth in MP 709.1.50 unless otherwise stated in the project plans. 709.1.2-High Chromium Steel Bars for Concrete Reinforcement: For corrosion resistant high chromium steel, the material shall meet testing requirements of tensile, yield, elongation, and bend requirements listed in ASTM A1035 and meet requirements set forth in MP 709.1.50 unless otherwise stated in the project plans. 709.1.3-Galvanized Coated Bars for Concrete Reinforcement: For galvanized coated reinforcing steel, the uncoated material shall conform to Section 709.1. The galvanized coating shall conform to the requirements of ASTM A767 for the immersion process or ASTM A1094 for the continuous hot dip galvanizing process, unless otherwise specified in the Contract Documents. All field handling and repair requirements shall conform to ASTM A767 or ASTM A1094 as applicable. 709.1.4-Epoxy Coated Reinforcing Steel: Shall meet the requirements of Section 709.1, MP 709.01.51, and ASTM A775, except that Section 12.1 of ASTM A775 shall be deleted and replaced with the following. The Contractor shall repair any damage to epoxy coating of reinforcing steel that occurs during shipment, storage and installation of the steel. The t otal damaged surface area (prior to repair with patching material), shall not exceed 2 % in any given one (1) foot section of coated reinforcement. The total bar surface area covered by patching material shall not exceed 5% in any given one (1) foot section of coated reinforcement. This limit on damaged and repaired area shall not include sheared or cut ends. All field handling and patching requirements shall conform to ASTM D3963. 709.2-PRESTRESSING REINFORCEMENT: Prestressing reinforcement shall be high-tensile steel wire conforming to AASHTO M 204, high-tensile wire strand conforming to AASHTO M 203, or high -tensile-strength steel bars conforming to AASHTO M 275. 709.3-HOOK EXPANSION BOLTS FOR FASTENING WIRE MESH IN SHOTCRETE APPLICATIONS: Hook fasteners for wire mesh reinforcement used in shotcrete applications shall meet the requirements of American Iron and Steel Institute (AISI) C1010 through C1018. 709.4-WELDED WIRE FABRIC FOR CONCRETE REINFORCEMENT: Welded and non-welded wire reinforcement for concrete shall conform to the requirements of ASTM A1064, as referenced in MP 709.04.40, except as modified. Fabric reinforcement for pavement shall be not less than five (5) feet in width and shall be shipped in sheets and not in rolls. Wire for the slope protec tion, gutters and miscellaneous items may be shipped in rolls. Sheets shall be bent in the shop as shown on the Plans. Epoxy coating shall meet the requirements of ASTM A884. 709.5-EXPANDED METAL PAVEMENT REINFORCEMENT: Expanded metal pavement reinforcement shall be made from open-hearth mild steel plates by a cutting and drawing process to form a uniform diamond shape mesh. The weight per 100 sq. feet and size of the meshes shall be as specified on the Plans. The strands or members shall be clean cut, straight and uniform in size. A bend test specimen cut from the furnished fabric shall withstand bending cold through 180 degrees flat upon itself without cracking on the outside of the b ent portion. A tensile specimen cut from the furnished material shall have a minimum tensile strength of 55,000 psi. The chemical composition of the steel shall conform to SAE Standard No. 1010. 709.6-FABRICATED BAR OR ROD MATS FOR CONCRETE REINFORCEMENT: Fabricated steel bar or rod mats shall conform to the requirements of AASHTO M 54. 709.7-JOINT TIE BOLT ASSEMBLY: Joint tie bolt assemblies shall conform to the applicable details of the Standard Detail Book, Volume I. The bar used shall conform to the requirements of ASTM F432, Grade 55. The tensile strength of the assembly shall be not less than 15,000 lb. The coupling or shank of the hook bolt shall provide a positive stop to prevent the shank of the hook bolt from being threaded beyond the center of the coupling. The tie bolt assemblies shall be equipped with an approved fastener for installation of the assembly in the steel p avement form. The fastener shall hold the assembly in the designated position during the placing and finishing of the concrete and subsequent removal of the pavement forms without damage to the concrete or the tie bolt assembly. 709.8-HIGH STRENGTH LOW ALLOY STRUCTURAL METAL: High-strength structural steel for bridges shall conform to AASHTO M 270, grades 50, 50W, or HPS 70W. High -strength steel for all other applications shall conform to AASHTO M 222 (weathering) or AASHTO M 223. 709.9: Blank
709.10 Gray Iron, Malleable Iron and Ductile Iron Castings:
Gray iron castings shall conform to the requirements of AASHTO M 105, Class No. 30. Malleable iron castings shall conform to the requirements of ASTM A47, Grade 32510. Castings shall be boldly filleted at angles, and the arrises shall be sharp and perfect. Malleable iron castings for railings posts shall be Grade No. 32510 and shall be galvanized with hot-dipped zinc coating in accordance with AASHTO M 232. Ductile iron castings shall conform to the requirements of ASTM A536, Grade 80 -55-6, 65-45-12 or 60-40-18. The dimension tolerance for gray iron castings is 1/16 inch per foot and the weight tolerance is 5%. All castings shall contain a manufacturer's heat number, lot number, or cast date. This identification shall be cast into the material at the time of manufacturer.
709.11 Hp Beams, Wide Flange Beams (Whalers) and Sheet Piling:
All HP beams and wide flange beams (whalers) used for structural piling systems shall be hot rolled, new and unused and conform to ASTM A572 Grade 50. All steel sheet piling shall conform to AASHTO M 202 / ASTM A328 Grade 50 unless otherwise directed on project plans.
709.12 Structural and Eyebar Steel:
All structural and eyebar steel shall conform to AASHTO M 270, Grade 50.
709.13 Steel Forgings and Steel Shafting:
709.13.1 Steel Forgings: Steel forgings shall conform to AASHTO M 102, Class E. They
shall be bored as specified in 615.4.9.2. A record of the annealing or normalizing changes shall be furnished showing the forgings in such charge, the melt or melts from which they were secured and the treatment they received.
709.13.2 Steel Shafting: Cold finished carbon steel shafting shall conform to
AASHTO M 169 Grades 1016 through 1030, inclusive, unless otherwise specified.
709.14 Steel Castings:
Steel castings shall conform to the requirements of AASHTO M 103, except steel produced by the converter process shall not be used. All steel castings shall be grade 65-35 (450- 240). Sharp unfilleted angles or corners shall not be permitted.
709.15 Coated Dowel Bars & Dowel Basket Assemblies:
Coated dowel bars shall meet the requirements of AASHTO M 254 except that the steel used to make the dowel bars shall meet the requirements of Section 709.1. Additionally, the saw cut ends of the coated dowel bars shall be touched -up with a coating material in accordance with the requirements of Section 602.6.2.
709.16 through 709.22: Blank
709.23 Steel Bolts and Nuts:
Material shall meet the requirements of ASTM A307.
709.24 High-Strength Bolts for Structural Steel Joints, Including
SUITABLE NUTS AND HARDENED WASHERS:
709.24.1 Bolts, Nuts and Washers: All bolts, nuts and washers shall bear the
manufacturer's markings and all markings specified in the applicable ASTM specifications. All bolts, nuts and washers supplied shall be domestic, as defined in 106.1.1.1, and the manufacturer and identification marks shall be registered in the Industrial Fastener Institute's Technical Information Report IFI-122.
709.24.2 High-Strength Bolts: High-Strength bolts, black, galvanized or zinc rich coated,
shall meet the requirements of ASTM F3125-Grade A325 with the following exceptions. Zinc rich coated fasteners shall also meet the requirements of 709.24.10.
709.24.2 1: Proof load tests (ASTM F606, Method #1) are required for all bolts except
as excluded in Section 10.1.3 of ASTM F3125. Minimum frequency of tests shall be as specified in ASTM F3125 paragraph 9.6.1.
709.24.2 2: Wedge tests on full size bolts (ASTM F6 06, paragraph 3.5) are required.
If bolts are to be galvanized or zinc rich coated, tests shall be performed after galvanizing or coating. Minimum frequency of tests shall be specified in ASTM F3125 paragraph 9.6.1.
709.24.2 3: If galvanized or zinc r ich coated bolts are supplied, the thickness of the
zinc coating shall be measured. Measurements shall be taken on the wrench flats or top of bolt head. If bolts are required to be galvanized, they shall be done so in accordance with ASTM B695
709.24.3 Nuts: Nuts plain, galvanized or zinc rich coated shall meet the following
requirements.
709.24.3 1: Nuts to be galvanized or zinc rich coated shall be grade DH or DH3
meeting ASTM A563 or shall be grade 2H meeting ASTM A194. Nuts shall be galvanized according to ASTM B695.
709.24.3 2: Plain (black) nuts shall be grade C, D or C3 meeting ASTM A563 or shall
be grade 2 meeting ASTM A194 and shall have a minimum Rockwell hardness of 89 HRB (or Brinell hardness 180 HB). Plain nuts may also be supplied to grades listed in paragraph
709.24.3 1 above.
709.24.3 3: Galvanized and zinc rich coated nuts shall be coated with a lubricant
containing a dye of any color that contrasts with the color of the coating.
709.24.3 4: Proof load tests (ASTM F606, paragraph 4.2) are required for all nuts.
Minimum frequency of tests shall be as specified in ASTM A563, paragraph 9.3 or ASTM A194 paragraph 8.1.2.1. If nuts are to be galvanized or zinc rich coated, tests shall be performed after coating, overtapping and lubricating.
709.24.3 5: If galvanized or zinc rich coated nuts are supplied, the thickness of the
coating shall be measured. Measurements shall be taken on the wrench flats.
709.24.4 Hardened Washers: Hardened washers, plain, galvanized or zinc rich coated
shall meet the requirements of AASHTO M 293 and the following:
709.24.4 1: If galvanized or zinc rich coated washers are supplied, hardness testing
shall be performed after coating ( coating shall be removed prior to taking hardness measurements).
709.24.4 2: If galvanized or zinc rich coated washers are supplied, the thickness of the
coating shall be measured.
709.24.5 Rotational Capacity Testing: Rotational-capacity tests are required and shall
be performed on all black (plain), galvanized (after galvanizing) bolt, nut and washer assemblies by the manufacturer or distributor prior to shipping. Washers are required as a part of the test. The following shall apply:
709.24.5 1: Except as modified, the rotational -capacity test shall be performed in
accordance with the requirements of ASTM F3125.
709.24.5 2: Each combination of bolt production lot, nut lot and washer lot shall be
tested as an assembly.
709.24.5 3: A rotational-capacity lot number shall be assigned to each combination of
lots tested.
709.24.5 4: The minimum frequency of testing shall be two assemblies per rotational-
capacity lot.
709.24.5 5: The bolt, nut and washer assembly shall be assembled in a Skidmore -
Wilhelm Calibrator or an acceptable equivalent device. For short bolts which are too short to be assembled in the Skidmore-Wilhelm Calibrator see Section 709.24.5.9.
709.24.5 6: The minimum rotation, from an initial condition (10% of the specified bolt
proof load), shall be: 240 (⅔ turn) for bolt lengths up to and including 4 diameters. 360 (1 turn) for bolt lengths over 4 diameters up to an including 8 diameters. 480 (1-⅓ turn) for bolt lengths over 8 diameters.
709.24.5 7: The tension reached at the above rotation shall be equal to or greater than
1.15 times the required installation tension. The installation tension and the tension for the turn test are shown below: Diameter (Inches) ⅝ ¾ ⅛ 1 1⅛ 1¼ 1½ Required Installation Tension (kips) 19 28 39 51 56 71 103 Turn Test Tension (kips) 22 32 45 59 64 82 118
709.24.5 8: After the required installation tension listed above has been exceeded, one
reading of tension and torque shall be taken and recorded. The torque value shall conform to the following: Torque (T) < 0.25 PD Where: Torque (T) = measured torque (foot-pounds) P = measured bolt tension (pounds) C = Contractor’s total overhead for contract period D = bolt diameter (feet)
709.24.5 9: Bolts that are too short to test in a Skidmore -Wilhelm Calibrator may be
tested in a steel joint. The tension requirement of Section 709.24.5.7 need not apply. The maximum torque requirement of Section 709.24.5.8 shall be computed using a value P equal to the turn test tension shown in the Table in Section 709.24.5.7.
709.24.6 Reporting of Test Results: The results of all tests (including zinc coating
thickness) required and in the appropriate AASHTO specifications shall be recorded on an appropriate document. Location where tests are performed and date of tests shall be reported on the approp riate document.
709.24.7 Witnessing of Tests: The tests need not be witnessed by an independent
inspection agency. However, the manufacturer or distributor that performs the test shall certify that the results recorded are accurate. Independent of the above, the Engineer reserves the right to witness any and all tests as the Engineer deems necessary. The manufacturer or distributor will notify the Engineer prior to conducting any tests.
709.24.8 Documentation:
709.24.8 1: Mill Test Report(s) (MTR) shall be furnished for all mill steel used in the
manufacture of the bolts, nuts and washers. MTR shall indicate the place where the material was melted and manufactured.
709.24.8 2: Manufacturer Certified Test Report(s) (MCTR): The manufacturer of the
bolts, nuts and washers shall furnish test reports (MCTR) for the items furnished. Each MCTR shall show the relevant information required in accordance with Section 709.24.6. The manufacturer performing the rotational-capacity test shall include on the MCTR:
a.The lot number of each of the items tested.
b.The rotational-capacity lot number as required in Section 709.24.5.3.
c.The results of the tests required in Section 709.24.5.
d.The pertinent information required in Section 709.24.6.2.
e.A statement that MCTR for the items are in conformance to this specification and the appropriate AASHTO specification.
f.The location where the bolt assembly components were manufactured.
709.24.8 3-Distributor Certified Test Report(s) (DCTR): The DCTR shall include
MCTR above for the various bolt assembly components. The rotational -capacity test may be performed by a distributor (in lieu of a manufacturer) and reported on the DCTR. The DCTR shall show the results of tests required in Section 709.24.5; shall show the pertinent information required in Section 709.24.6.2 and shall show the rotational -capacity lot number as required in Section 709.24.5.3. The DCTR shall certify that the MCTR are in conformance to this specification and the appropriate AASHTO specifications.
709.24.9 Shipping: Bolts, nuts and washers from each rotational -capacity lot shall be
shipped in the same container. If there is only one production lot number for each size of nut and washer, the nuts and washers may be shipped in separate containers. Each container shall be watertight and shall be permanently marked with a shipping label on the container lid and on the side of the container. The labels shall contain, as a minimum, the following information: quantity and description of contents, manufacturer's lot number for each item and the rotational-capacity lot number. The appropriate MTR, MCTR or DCTR shall be supplied to the Engineer or representative prior to installation of any fasteners.
709.24.10 Zinc Rich Coated Fasteners: Fastener components shall be vapor degreased,
blast cleaned to Steel Structures Painting Council (SSPC) condition SSPC-10 (near white) and spray coated with a high ratio water-based inorganic zinc rich primer meeting the requirements of Section 711.20.2 of the Specifications. The primer utilized shall be included on the Division of Highways Approved List of Zinc Primers. Copies of the Approval List are available from WVDOH District Materials Officers or from the Materials Division in Charleston, WV. Dry film thickness of the zinc rich primer shall be 2 mils minimum and 4 mils maximum.
709.25 Steel Shells Or Casings (Driven Without Mandrel) for Cast-In-
PLACE PILES: Steel shells or casings shall be composed of basic open hearth steel having a tensile strength of not less than 50,000 psi. The thickness of metal shall be as indicated on the Plans. The tips (small end) shall be equipped with a steel driving point securely fastened to the shell and the entire shell shall form one integral water -tight unit. Shells shall be tapered or step -tapered from top to bottom. Any shell proposed for use shall be approved by the Engineer before driving.
709.26 through 709.28: Blank
709.29 Zinc Coated Steel Sheets for Use In Manufacturing Traffic
SIGNS: The zinc coated steel sheets shall be 16 gage (USS) and shall conform to the requirements of ASTM A525. The sheets shall be resquared. They shall be furnished with a galvanized coating, Class 2.00. The surface of the sheets shall be clean, free of oil, soot, dirt, scale, and other foreign material. They shall be protected in transit and shall be suitable for painting without cleaning or processing in any manner upon receipt by the Division.
709.30 Cast Iron Soil Pipe and Fittings:
Cast iron soil pipe and fittings shall conform to the requirements of ASTM A74.
709.31 Aluminum Alloy Extrusions and Aluminum Alloy Extruded
TUBE: Aluminum alloy extrusions and extruded tube shall conform to ASTM B221, alloy 6061, temper condition T6.
709.32 Aluminum Alloy Standard Structural Shapes:
Aluminum alloy standard structural shapes, rolled or extruded, shall conform to ASTM B308, alloy 6061, temper condition T6.
709.33 Aluminum Alloy Drawn Tube:
Aluminum alloy drawn tube shall conform to ASTM B210, alloy 6061, temper condition T6.
709.34 Aluminum Alloy Pipes:
Aluminum alloy pipe shall conform to ASTM B241, alloy 6061, temper condition T6.
709.35 Aluminum Alloy Rivets:
Aluminum alloy rivets shall conform to Military Specifications MIL -R-5674; grade and head style shall be as specified by the Engineer.
709.36 Aluminum Alloy Bolts, Nuts and Set Screws:
Aluminum alloy bolts and set screws shall be made from rod conforming to ASTM B211, alloy 2024, temper condition T4. The aluminum alloy nuts shall be made from rod conforming to either ASTM B221, alloy 6061, temper condition T6 or ASTM B211, alloy 6061, temper condition T6. Bolt head and nuts shall conform to the American Standard Regular Hexagon, ASA Specifications B 18.2 with the following modification: the width across the flats and the width across the corners may exceed the maximum given in the specification tables by an amount no greater than 20 percent (20%) of the difference between the maximum and minimum values given in the tables. Threads shall conform to American Standard Coarse Thread Class 2. The finished product shall be in the fully heat -treated and aged condition. Anchor bolts shall be given a clear anodic coating at least 0.0002 in thick. Exposed nuts and washers need not be given as anodic coating.
709.37 Aluminum Alloy Washers:
Aluminum alloy washers shall be made from sheet conforming to ASTM B209, Alclad 2024, temper condition T3 or T4 depending upon the thickness supplied. 709.38: Blank
709.39 Aluminum Alloy Sand Castings:
Aluminum alloy sand castings shall conform to Table 658.4.3.
709.40 Aluminum Alloy Shim Material:
Aluminum alloy shims shall be made from sheet or plate conforming to ASTM B209, alloy 1100, temper condition 0.
709.41 Aluminum Filler Metal for Welding:
Aluminum filler metal for welding shall conform to ASTM B285, alloy ER 4043.
709.42 through 709.44: Blank
709.45 Galvanized Steel Guardrail Posts:
Steel guardrail posts shall be fabricated from steel meeting the requirements of ASTM A36 or fabricated in accordance with ASTM A769, Grade 40. They shall be of a section, length and weight as specified on the Plans. The weight shall not be less than 97.5 percent (97.5%) of that specified. Galvanizing shall be in accordance with AASHTO M 111, with a minimum of 2 oz. per square foot.
709.46 Steel Posts, Post Braces and Gate Frames for Right-of-Way
FENCE: Unless otherwise specified, all right-of-way fence posts, post braces and grate frames shall meet the requirements of AASHTO M 181. Either Grade 1 or Grade 2 may be used unless one is specifically called for in the contract. Pipe members shall have the dimensions and weights called for on the plans. Studded tee posts used as line posts for farm-field fence shall conform to the requirements of either AASHTO M 281 / ASTM A702 or ASTM A499 and coated to meet the requirements of AASHTO M 111 unless otherwise directed on project plans. 709.47: Blank
709.48 Cadmium Coated Materials:
Cadmium coated (electrodeposited) steel articles, steel hardware, nuts, bolts, etc. shall meet the requirements of ASTM B766.
709.49 Sheet Lead:
Sheet lead shall conform to the requirements of ASTM B29.
709.50 Steel Pile Points:
Steel pile points may be either ASTM A27 Grade 65/35 cast steel or ASTM A148 Grade 90/60. Pile points will be approved by the Materials Control, Soil and Testing Division.
709.51 Surface Mount Sign Support Breakaway Devices:
Surface Mount Sign Support Breakaway Devices shall be designed for use with 2 -lb/ft and/or 3-lb/ft u-channel supports shown on Standard Details Book Volume II (Standard Deta ils) sheets TE1-7A and TE1-7B, and/or 2” x 14-gauge Square Tube Supports as described in Section 657. The purpose of the device shall be to create an omni-directional breakaway, low maintenance support installation on asphalt and concrete surfaces which do es not require any portion of the support to be installed below grade. The device shall be designed for use with one or more of the support types/sizes specified above. Differences in the dimensioning of components used with each type/size support is permissible. The device shall be designed and tested to meet the following requirements:
i.Withstand loading which meets or exceeds that which will be generated based on the Support Size Selection Chart on Sheet TE1 -7A, as well as cyclical loading, without failure. ii. Shall be compatible with one or more of the u-channel supports listed on the Division Approved Products List (APL) for U -Channel Posts, and/or square tube support which meet the requirements of Section 709.55. iii. Shall be designed to be surface mounted on both asphalt and concrete surfaces of nominal minimum thickness. Concrete foundations shall not be required. iv. Components shall be manufactured using aluminum, stainless steel, galvanized steel, exterior grade epoxy coated steel, or similar material exhibiting weather resistance equal to or greater than those described.
v.Shall not require modification of the support for installation. vi. Shall be designed to be anchored to the surface and shall not require saw cutting, jackhammering, etc. of the asphalt or concrete. vii. Shall be acceptable for use with supports of the types/sizes that the device is approved for use with regardless of the number of supports. The manufacturer may limit the number of supports within a seven (7) foot path when the device is used. However, a minimum of two supports shall be permissible within a seven (7) foot path. viii. Allows the support to break away when impacted from any angle. ix. Minimizes the risk to pedestrians during and after impacts by not incorporating components which become independent projectiles, or which become potentially hazardous shards projecting above grade.
x.No component not designed to breakaway or yield upon impact shall project more than four (4)-inches above the surface, providing the device is installed flush to the surface in accordance with the manufacturer’s specifications. xi. May require the repl acement of a portion of, or up to all of the system components after impact; however, repair or replacement after impacts shall not be time consuming or labor intensive. The required use of power equipment or expensive, highly specialized equipment to remo ve damaged components and/or to complete repairs, including instances where the device has been impacted directly by a vehicle tire or undercarriage, shall be unacceptable. xii. Shall be “crashworthy” when utilized and installed in accordance with the manufacturer’s specifications such as brand supports, maximum number of supports within a seven ( 7) foot path, etc., and with traffic signs securely mounted to the supports in accordance with the mounting height guidelines provided on Sheet TP3- 1A of the Standard Details. “Crashworthy”, as specified herein, shall be defined as compliance with the crash testing requirements of the AASHTO Manual for Assessing Safety Hardware (MASH) at Test Levels I, II, and III. Mandatory guidelines applying to the device such as , but not limited to, the type/size supports it is permitted to be used with, brand supports it is permitted to be used with, and the maximum number of supports permitted within a seven (7) foot path when the device is used, shall be noted on the APL. The manufacturer shall supply installation instructions and all required components and hardware to the Contractor. This shall include a complete anchoring system to secure the device to the asphalt or concrete surface. The manufacturer shall make available d evice installation instructions for posting and dissemination by the Division to inspection and maintenance personnel.
709.51.1 Product Submission and Approval: Surface Mount Breakaway Devices to be
considered for inclusion on the Division Roadside Sign Support Accessories APL shall be submitted to the Materials Division following the current procedures specified by the Division in MP 106.00.02. The manufacturer should include all relevant documentation and information, including but not limited to Product Data Sheets, Product Flyers, Manufacturer Product Specifications, Product Bulletins, Engineering Drawings, and crash testing performance documentation. The cras h testing performance documentation to be submitted shall be in accordance with official guidance issued by the WVDOH. In addition to the above, field evaluation installations shall be required prior to approval. In order for the device to be approved, evaluation installations installed by or for the Division shall demonstrate levels of durability, reliability, performance, and ease of installation/repair determined to be acceptable to Division evaluation personnel. The duration of the field evaluations shall typically be a minimum of six months to one year. Specific details related to this testing, such as locations and quantities, shall be determined by the Division. Initial and typical repair material costs associated with the device shall also be cons idered as part of the evaluation.
709.52 Steel Beam Sign Support Omni-Directional Breakaway Device:
Steel Beam Sign Support Omni-Directional Breakaway Devices shall be designed for use with Steel Beam roadside sign supports shown on Standard Detail Book Volume II (Standard Details) sheets TE1-3A, TE1-3B, and TE1-3C. The purpose of the device shall be to transform the bi-directional slip base breakaway mechanism of Steel Beam supports into an omni -directional breakaway connection. The device may be designed for use with one or more of the standard size Steel Beam supports shown in the Standard Details. The device shall be designed and tested to meet the following requirements:
i.Withstand loading which meets or exceeds that which will be generated based on the Support Size Selection Chart on Sheet TE1-3B, as well as cyclical loading, without failure. ii. Components shall be manufactured using aluminum, stainless steel, galvanized steel, exterior grade epoxy coated steel, or similar material exhibiting weather resistance equal to or greater than those described. iii. Other than elimination of the keeper plate and/or elimination of the standard connection hardware between the support base plate and the stub post base plate, the device shall require no modifications to the design of the support. This shall include the stub post and the support hinge plates. iv. Shall be acceptable for use with supports of the sizes that the device is approved f or use with regardless of the number of supports connected by the sign(s) or bracing above the hinge plates. However, the manufacturer may limit the number of supports within a seven
7.foot width when the device is used. However, in order to be approved for use with S4x7.7 or W6x12 supports, a minimum of two supports within a seven (7) foot path shall be permissible.
v.Allow the support to break away from the stub support when impacted from any angle. vi. Minimizes the risk to pedestrians during and after impa cts by not incorporating components which become independent projectiles, or which become potentially hazardous shards projecting above grade. vii. No component not designed to breakaway or yield upon impact shall project more than ½ inch above the top of the support stub. viii. May require the replacement of a portion of, or up to all of the system components after impact; however, repair or replacement after impacts shall not be time consuming or labor intensive. The required use of power equipment or expensive, highly specialized equipment to remove damaged components and/or to complete repairs, including instances where the device has been impacted directly by a vehicle tire or undercarriage, shall be unacceptable. ix. Shall not affect the support’s compliance with t he crash testing requirements of the AASHTO Manual for Assessing Safety Hardware (MASH) at Test Levels I, II, and III for projects. This shall be demonstrable by crash testing performance documentation as described herein. Mandatory guidelines applying to the device such as, but not limited to, the size supports it is permitted to be used with and the maximum number of supports permitted within a seven (7) foot span when the device is used, shall be noted on the Approved Products List (APL). The manufacturer shall supply installation instructions and all required components and hardware to the Contractor. The manufacturer shall make available device installation instructions for posting and dissemination by the Division to inspection and maintenance personnel.
709.52.1 Product Submission and Approval: Omni-Directional Breakaway Devices to
be considered for inclusion on the Division Roadside Sign Support Accessories APL shall be submitted to the Materials Division following the current procedures specified by the Division in MP 106.00.02. The manufacturer should include all relevant documentation and information, including but not limited to Product Data Sheets, Product Flyers, Manufacturer Product Specifications, Product Bulletins, Engineering Drawin gs, and crash testing performance documentation. The crash testing performance documentation to be submitted shall be in accordance with official guidance issued by the WVDOH. In addition to the above, field evaluation installations shall be required pr ior to approval. In order for the device to be approved, evaluation installations installed by or for the Division shall demonstrate levels of durability, reliability, performance, and ease of installation/repair determined to be acceptable to Division eva luation personnel. The duration of the field evaluations shall typically be a minimum of six months to one year. Specific details related to this testing, such as locations and quantities, shall be determined by the Division. Initial and typical repair material costs associated with the device shall also be considered as part of the evaluation.
709.53 Square Tube Sign Supports:
Square Tube Sign Supports shall be manufactured of steel conforming to ASTM Specification A653, Designation SS, Grade 50, Class 1, or ASTM Specification A1011, Grade 50. Square tube supports shall be welded at the corner. The supports shall be galvanized per ASTM A653. A minimum coating thickness as indicated by the G90 designation shall be applied. Supports manufactured using base material conforming to the A1011 specification shall meet the Grade 50 physical requirements after the galvanization process. Support sizes shall be defined by the outside dimensions and wall thickness of the support. The supports shall be available in wall thicknesses of 10 -gauge (0.135" U.S.S. Gauge), 12-gauge (0.105" U.S.S. Gauge), and 14-gauge (0.083" U.S.S. Gauge). 10-gauge supports shall be available in 2-3/16 inch and 2-½ inch sizes. 12-gauge supports shall be available in 1 -½ inch through 2-½ inch sizes in ¼-inch increments. 14-gauge supports shall be available in 1-¾ inch through 2-¼ inch sizes in ¼-inch increments. The supports shall be straight and shall have a smooth uniform finish. Each si ze support shall be telescopable into the next larger size support of the same gauge thickness. In addition, each size support shall be telescopable into the next larger size support of the next thicker gauge size. Supports shall telescope freely and with a minimum amount of play. The supports shall be pre-punched on all four sides on one (1)-inch center to center spacing. Holes shall be ⅜-inch (+ 1/16 inch /- 0 inch) diameter after galvanizing. The manufacturer’s square tube support system shall be “crashworthy” under the following conditions:
i.Supports are driven into strong soil, as defined in National Cooperative Highway Research Program Report 350 (NCHRP -350) or the AASHTO Manual for Assessing Safety Hardware (MASH), as applicable, to the manufacturer recommended depth. Supports shall not be required to be driven more than thirty (30) inches in the soil described. ii. Supports are either directly driven or with a stub that the upper support is telescopable into as described herein. The upper support shall be telescoped into the stub a distance equal to or greater that which is recommended by the manufacturer. iii. No limit shall be placed on the total number of supports. However, no more than two supports of size two (2) inch x 12-ga. or less shall be placed l aterally within a seven (7) foot wide path; and no more than one support of size 2 -¼-inch x 14 or 12-ga., 2-½-inch x 12-ga., or 2-3/16-inch x 10-ga. shall be placed laterally within a seven (7) foot wide path. iv. Traffic signs are securely mounted to the supports in accordance with the mounting height guidelines provided on Sheet TP3-1A of the WVDOH Standard Details Book Volume II. “Crashworthy” shall be defined as compliance with the crash testing requirements of the AASHTO MASH at Test Levels I, II, and II I. FHWA eligibility letters, crash testing reports, or other supporting documentation shall be provided upon request. The manufacturer shall make available installation instructions for posting and dissemination by the Division to inspection and maintenance personnel.
709.54 Back To Back U-Channel Sign Support Breakaway Device:
Back to Back U-Channel Sign Support Breakaway Devices shall be designed for use with 4-lb/ft and/or 6-lb/ft back to back supports shown on Standard Detail Book Volume II (Standard Details) sheets TE1 -7A and TE1 -7B. The purpose of the device shall be to create an omni - directional breakaway base connection. The device shall be designed for use with a stub and upper support of one or both of the back to back size supports specified above. Differences in the dimensioning of components used with each size support is permissible. The device shall be designed and tested to meet the following requirements:
i.Withstand loading which meets or exceeds that which will be generated based on the Support Size Selection Chart on Sheet TE1-7A, as well as cyclical loading, without failure. ii. Shall be compatible with one or more of the supports listed on the Division Ap proved Products List (APL) for U-Channel Posts. iii. Shall function with the stub support installed in a concrete foundation as shown on Standard Detail Sheet TE1-7B. iv. Components shall be manufactured using aluminum, stainless steel, galvanized steel, exterior grade epoxy coated steel, or similar material exhibiting weather resistance equal to or greater than those described.
v.Shall not require modification of the stub or upper support for installation. vi. Shall be acceptable for use with supports of the sizes tha t the device is approved for use with regardless of the number of supports. The manufacturer may limit the number of supports within a seven (7) foot width when the device is used. However, a minimum of two 4 -lb/ft or 6 -lb/ft back to back supports within a seven ( 7) foot width shall be permissible. vii. Allows the upper support to break away from the stub support when impacted from any angle. viii. Minimizes the risk to pedestrians during and after impacts by not incorporating components which become independent projectiles, or which become potentially hazardous shards projecting above grade. ix. Shall allow for installation after concrete is placed around the stub to grade.
x.No component not designed to breakaway or yield upon impact shall project more than four ( 4) inches above ground level, providing the projection of the stub support is in accordance with the manufacturer’s recommendations. xi. May require the replacement of a portion of, or up to all of the system components after impact; however, repair or replacement after impacts shall not be time consuming or labor intensive. The required use of power equipment or expensive, highly specialized equipment to remove damaged components and/or to complete repairs, including instances where the device has been impacted directly by a vehicle tire or undercarriage, shall be unacceptable. xii. Shall be “crashworthy” when utilized and installed in accordance with the manufacturer’s recommendations such as brand supports, size supports, maximum number of supports within a seven (7) foot width, etc., and with traffic signs securely mounted to the supports in accordance with the mounting height guidelines provided on S heet TP3 -1A of the Standard Details. “Crashworthy”, as specified herein, shall be defined as compliance with the crash testing requirements of the AASHTO Manual for Assessing Safety Hardware (MASH) at Test Levels I, II, and III. Mandatory guidelines applying to the device such as, but not limited to, the size supports it is permitted to be used with, brand supports it is permitted to be used with, and the maximum number of supports permitted within a seven (7) foot path shall be noted on the APL. The manufacturer shall supply installation instructions and all required components and hardware to the Contractor. The manufacturer shall make available device installation instructions for posting and dissemination by the Division to inspection and maintenance personnel.
709.54.1 Product Submission and Approval: Back to Back U -Channel Breakaway
Devices to be considered for inclusion on the Division Roadside Sign Support Accessories APL shall be submitted to the Materials Division following the current p rocedures specified by the Division in MP 106.00.02. The manufacturer should include all relevant documentation and information, including but not limited to Product Data Sheets, Product Flyers, Manufacturer Product Specifications, Product Bulletins, Engin eering Drawings, and crash testing performance documentation. The crash testing performance documentation to be submitted shall be in accordance with official guidance issued by the WVDOH. In addition to the above, field evaluation installations shall b e required prior to approval. In order for the device to be approved, evaluation installations installed by or for the Division shall demonstrate levels of durability, reliability, performance, and ease of installation/repair determined to be acceptable to Division evaluation personnel. The duration of the field evaluations shall typically be a minimum of six months to one year. Specific details related to this testing, such as locations and quantities, shall be determined by the Division. Initial and typical repair material costs associated with the device shall also be considered as part of the evaluation.
709.55 Type A and B Barrier Wall Sign Support Brackets:
Type A and B Barrier Wall Sign Support Brackets (Type A and B Brackets) shall be designed for use with 2” x 14-gauge Square Tube Supports meeting the requirements of Section
709.55 The purpose of the device shall be for mounting specified sign assemblies on top of a
median barrier wall or parapet. The brackets shall be designed and tested to meet the following requirements:
i.Type A Brackets and anchoring shall withstand loading which meets or exceeds that which will be generated based on the Support Size Selection Chart on Sheet TE1 -7A for the 3 - lb/ft u-channel support size, as well as cyclical loading, without failure. The br acket shall meet this requirement with the bracket installed on a six ( 6) inch wide, non -tapered, unreinforced barrier manufactured with concrete meeting a design strength of 3,000-PSI. ii. Type A Brackets shall be permitted to include side anchors on one o r both faces of the barrier. However, the bracket shall not extend more than four (4)-inches down the face of the barrier. When installed on a barrier with no taper, the bracket shall not extend more than ⅜-inch from the face of the barrier. This requirement does not include the bracket side anchors. However, the anchoring system supplied by the manufacturer for the side anchors shall utilize domed head bolts to minimize the potential for snagging. iii. Type A Brackets shall be designed such that upon final installation as designed, it shall be possible to install the bracket vertical anchors at the centerline of the wall. The bracket shall meet this requirement when installed on barriers with the following characteristics:
a.Barrier width at the top is a minimum of six (6)-inches and is less than ten (10)- inches. Taper on one or both faces of the barrier is as little as zero (0)-inches per foot of height to as much as 1-¼-inches per foot of height.
b.Barrier width at the top is a minimum of six (6)-inches and is eight (8)-inches or less. Taper on one or both faces of the barrier is greater than 1-¼-inches per foot of height and as much as 2-¾-inches per foot of height. iv. Type B Brackets and anchoring shall withstand loading which meets or exceeds that which will be ge nerated based on the Support Size Selection Chart on Sheet TE1 -7A for the 3- lb/ft u-channel support size, as well as cyclical loading, without failure. The bracket shall meet this requirement with the bracket installed on a ten (10) inch wide, non-tapered, unreinforced barrier manufactured with concrete meeting a design strength of 3,000 PSI.
v.Type B brackets shall not incorporate side anchors. All anchoring shall be vertical and no components of the bracket shall extend below the top of the wall. vi. The width (portion on top of the wall) and length of Type A and B brackets shall not exceed 7-inches. vii. Type A and B bracket components shall be manufactured using galvanized steel, exterior grade epoxy coated steel, or similar material exhibiting weather resis tance equal to or greater than those described. This shall include the bracket and the anchoring system. viii. Type A and B brackets shall not require modification of the support for installation. ix. Type A and B brackets shall minimize the risk to motorists and pedestrians during and after impacts by not incorporating components which become independent projectiles. The manufacturer shall supply installation instructions and all required components and hardware to the Contractor. This shall include the complete system to be used for anchoring the brackets as well as hardware for securing the square tube support to the bracket. The manufacturer shall make available device installation instructions for posting and dissemination by the Division to inspection and maintenance personnel.
709.55.1 Product Submission and Approval: Type A and B Brackets to be considered
for inclusion on the Division Roadside Sign Support Accessories APL shall be submitted to the Materials Division following the current procedures spec ified by the Division in MP 106.00.02. The manufacturer should include all relevant documentation and information, including but not limited to Product Data Sheets, Product Flyers, Manufacturer Product Specifications, Product Bulletins, and Engineering Drawings. In addition to the above, field evaluation installations shall typically be required prior to approval. In order for the device to be approved, evaluation installations installed by or for the Division shall demonstrate levels of durability, reli ability, performance, and ease of installation/repair determined to be acceptable to Division evaluation personnel. The duration of the field evaluations shall typically be a minimum of six months to one year. Specific details related to this testing, such as locations and quantities, shall be determined by the Division.
Referenced in this section
Metals in other states
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Source: Standard Specifications for Roads and Bridges, 2023 Edition. Pages 825–841 of 1,006. View official source ↗