816 intensive. The required use of power equipment or expensive, highly specialized equip ment 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 t he 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 a pplying 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 maintena nce 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 typic al 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. 817 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 requireme nt 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 in stallation 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 ma intenance 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 Dra wings. 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 818 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. 819 SECTION 710 WOOD MATERIALS 710.1 -STRUCTURAL MATERIALS : Timber, lumber, piles, posts, and blocks shall meet the requirements of AASHTO M 168 and AASHTO M 133. Preservation and Treatment plants shall meet the requirements of the Book of Standards of the American Wood Protection Association (AWPA). All preservatives and treated wood products shall comply with US EPA regulations. 710.2 -SPECIES AND GRADE : 710.2.1 -Structural softwood shall meet the requirements of the Southern Pine Inspection Bureau (SPIB) grading rules. All wood for structural use shall be visually or m echanically graded for the requirements shown on the Plans or specified in the contract. 710.2.2 -Structural hardwood shall meet the requirements of AASHTO M 168 or the Northeastern Lumber Manufacturers Association (NeLMA) structural grades. The grade a nd species required shall be as shown on the Plans or specified in the contract. 710.2.3 -Hardwood used for bridge decking shall meet the Standards of the National Hardwood Lumber Association (NHLA) for sound square edge, be rough sawn and sized by being processed through a hit or miss surfacer. 710.2.4 -All graded material may either carry the appropriate grade stamp, or be inspected by an independent inspection agency approved by the Division. 710.3 -PRESERVATIVE TREATMENT : All wood products and preservative treatments used for highway and commercial use shall meet the requirements of AWPA Standard U1 and AASHTO M 133. The quantity of preservative shall be as required above, unles s modified by the Plans or purchase order. 710.4 -TREATMENT PLANTS : Material treated with preservative may be purchased from certified or noncertified plants. Both types of plants shall adhere to the quality control procedures of AWPA M2. 710.4.1 -Certified Plants: The Division's procedure for plant certification is defined in MP 710.01.40. 710.4.2 -Noncertified Plants: Material purchased from noncertified plants will be tested on a lot by lot basis. Th e inspection shall be performed by a Division approved inspection agency. The cost of the inspection will be paid by the supplier. Shipments from noncertified plants shall be documented as described in MP 710.01.40. 710.5 -WOOD POSTS : Wood posts shall meet the requirements of AASHTO M 168, AASHTO M 133, and AWPA UC4B. 820 710.5. 1-Rectangular posts for guardrail shall be No. 1 major or minor species of Southern Pine as defined in Section 400 of the SPIB grading rules. 710.5. 2-Dimensions of all guardrail posts except as noted on the Plans shall be as follows: Rectangular Guardrail Posts Size: 6” ¼” X 8” ¼” throughout the length except as noted on Plans Length: 6’ ½” 710.5. 3-Dimensions of wood posts for fence and signs shall be as shown on the Plans. 710.6 -PLYWOOD : 710.6.1 -Plywood shall meet the requirements of Product Standard PS -1 of U.S. Department of Commerce. All plywood shall be identified with the mark of a qualified inspection and testing agency. The identification shall include: 710.6.1.1 -Species group classification, o r class number, or span rating, depending on grade. 710.6.1.2 -Either interior or exterior. 710.6.1.3 -Grade name or grade of face and back veneers. 710.6.1.4 -The symbol PS -1 signifying conformance with the standard. 710.6.2 -Exterior plywood shall b e bonded with exterior glue and the veneers used in manufacture cannot be less than grade C as defined in PS -1. 710.7 -COMMON LUMBER : Common lumber is untreated and suitable for general construction and utility purposes. Common lumber is from two ( 2) inches to, but not including, five ( 5) inches thick and is two (2) inches or more in width. Common lumber shall be grade 2 or better, unless otherwise specified in the plans, when graded by the Board of Review of the American Lumber Standards Committee. 710.8 -SERVICE , LIGHTING , AND TYPE D TRAFFIC SIGNAL POLES : Wood Service or lighting poles shall be ANSI Class 5, or larger, or as called for on the contract plans. Lighting poles shall be southern yellow pine and service poles shall be either southern yellow pine or Douglas fir. Type D traffic signal poles shall be ANSI O5.1 Class 3 or greater, or as called for on the contract plans. Species shall be either southern yellow pine or Douglas fir. Poles shall not have more than 180 degree twist in grain over the full length and the s weep shall be no more than four
4.inches. The poles shall be pressure -treated) to meet the requirements of American Wood Protection Association (AWPA) Standard U1 UC4C (Commodities Specification D: Poles). 821 SECTION 711 PROTECTIVE COATINGS, STAINS, AND T RAFFIC PAINTS All protective coatings shall consist of pigments and vehicles conforming to the general requirements of these specifications, proportioned and treated to produce materials possessing the detailed composition and physical properties. 711.1 through 711.4: Blank 711.5 -CONCRETE PROTECTIVE COATINGS AND STAIN : 711.5.1 -General: This specification provides the requirements for concrete protective coatings and stains. Concrete coatings and stain may be used as surface finishes for designated surfa ces of cement concrete structures. The protective coatings and stains must hide form marks, patches, and other minor irregularities and prevent deterioration, spalling, and other damage to the concrete due to the action of the weather and deicing chemical s. These materials must have protective and corrosion resistance properties. The storage life will be based on manufacturer recommendations. 711.5.2 -Physical Requirements: An independent testing laboratory acceptable to the Division shall perform the tests described herein on representative samples of the material. Tests listed herein are the minimum testing requirements to be met. When requested in writing, the Engineer may accept materials based on conformance to the same type of test but differin g on minor procedural points. Attach copies of test procedures which differ from those stated herein.
i.Freeze -Thaw Test: Cast and cure 3 concrete specimens no less than four ( 4) by six (6) by six (6) inches. Moist cure specimens for 14 days and then dry in room air at 60° to 80° F for 24 hours before applying protective coating. Ensure that there is no excessive oil on specimen forms. Coat sides of specimens (brush permitted) according to the manuf acturer’s directions at a rate of 50 ± 10ft2/gal and cure at room temperature for 48 hours, after which:
1.Immerse in water at room temperature 60° to 80°F for 3 hours and remove.
2.Place in cold storage at 5° F for one hour and remove.
3.Thaw at room tempera ture, 60° to 80°F for one hour.
4.Repeat steps 1), 2) and 3) to complete a total of 50 cycles. At the end of 50 cycles of the Freeze/Thaw Test, ensure that the coated specimens show no visible defects. ii. Salt Fog: Apply the masonry coating to concrete at a rate of 50 ± 10ft2/gal and test the coating according to ASTM B117. Expose the coating to a 5 percent (5%) sodium (salt) solution for 300 hours and maintain it at 194° ± 4° F during the period of exposure. Ensure that it shows no loss of adhesion or dete rioration at the end of the 300 hours. iii. Fungus Growth: Ensure that protective coatings pass a fungus resistance test as described by federal specifications TT -P-29. After a minimum incubation period of 21 days, ensure that no growth is exhibited on the coa tings. iv. Color –The color choice shall conform to SAE International AMS -STD -595 A, Federal Standard Colors. The color difference, ΔE, of the acceptance samples shall not be more than five units from the chosen Federal Standard Number submitted. 822 711.5.3 -Approval: For approval of concrete coatings, the manufacturer shall submit copies of certified test reports to the Materials Control, Soils and Testing (MCS&T) Division for review and approval. An independent testing laboratory acceptable to the Division s hall perform the tests described herein on representative samples of the material. Tests listed herein are the minimum testing requirements to be met. Attach copies of test procedures which differ from those stated herein. In addition, provide brochures or booklets containing detailed instructions and explanatory remarks about surface preparation, application procedures, and operations. The Division may also choose materials tested by the National Transportation Product Evaluation Program (NTPEP) and/or the North East Protective Coating Committee (NEPCOAT) to be placed on the approved source list. 711.6 -ZINC PRIMERS : 711.6.1-Organic Zinc Primer: 711.6.1.1 -General: This specification provides the requirements for an organic zinc rich primer. The Organic Zinc Primer may be used in the shop on new steel or in the field on existing steel. The steel shall be capable of being blast cleaned to a near -white finish, meeting SSPC -SP-10 requirements for new steel, and SSPC -SP-6, for existing steel. When used as a shop primer, the material shall have a minimum slip coefficient of 0.50 (Class B) when tested in accordance with “Test Method to Determine the Slip Coefficient for Coatings used in Bolted Joints” as adapted by the Research Council on Structural Connections. Acceptance for field painting will be based on batch testing of materials that do not meet the minimum of 0.50 (Class B) slip coefficient. The pr imer may be top coated with materials meeting the requirements of Subsections 711.22.3 and 711.22.4. The dry film thickness requirement will be based on manufacturer recommendations. The paint storage life will be based on manufacturer recommendations. 711.6.1.2 -Physical Requirements: Shall be as per SSPC Paint 20, Type II with the following exceptions:
i.The VOC shall not exceed 3.5 lbs/gal. ii. Viscosity of the mixed paint shall be in accordance with ASTM D562. Variance shall be within ±10 Krebs Units of t he viscosity of the previously qualified paint. iii. Weight per gallon of the mixed paint shall be in accordance with ASTM D1475. Variance shall be within ±0.5 pounds of the weight per gallon of the previously qualified paint. 711.6.2 -Inorganic Zinc Primer: 711.6.2.1 -General : This specification provides the requirements for an inorganic zinc rich primer. The Inorganic Zinc Primer shall be shop applied only, over a near white blasted surface, meeting SSPC – SP-10 requirements. The primer shall have a minimum slip coefficient of 0.50 (Class B) when tested in accordance with "Test Method to Determine the Slip Coefficient for Coatings used in Bolted Joints" as adapted by the Research Council on Structural Connections. The dry film thickness requirement wi ll be based on manufacturer recommendations. The paint storage life will be based on manufacturer recommendations. 711.6.2.2 -Physical Requirements: This primer shall meet the requirements set forth in AASHTO M 300 with the following exceptions:
i.The VOC shall not exceed 3.5 lbs/gal. 823 ii. The adhesion shall be a minimum of 4B when tested in accordance with ASTM D3359, Method B. iii. Viscosity of the mixed paint shall be in accordance with ASTM D562. Variance shall be within ±10 Krebs Units of the viscosity o f the previously qualified paint. iv. Weight per gallon of the mixed paint shall be in accordance with ASTM D1475.Variance shall be within ±0.5 pounds of the weight per gallon of the previously qualified paint. 711.7 through 711.11: Blank
711.12 Epoxy Coatings :
711.12.1 General : This specification provides the requirements for a two component,
modified epoxy coating for use as a spot primer or a one coat system for use on poorly prepared surfaces on most existing structures. The coating may be used as a primer over steel that has been cleaned to a minimum of SSPC -SP-2. If it is used a s a primer, it may then be coated with the manufacturer’s recommended intermediate and/or top coat from the Division’s approved list of Zinc Rich Low VOC Systems (711.22). This coating shall also be suitable for use over zinc rich primers. All ingredients are not specified; however, the finished product shall comply with the requirements prescribed. The dry film thickness requirement will be based on manufacturer recommendations. The paint storage life will be based on manufacturer recommendations.
711.12.2 Composition: The pigment shall not react with the vehicle or interfere with the
cure. The pigment may be aluminum flake powder or paste. The metallic aluminum pigment may be replaced by other pigments and coloring agents necessary to provide the sp ecified color. The vehicle shall be modified epoxy resin and curing agent. The vehicle shall be formulated to permit trouble free application during normal humidity conditions.
i.Color –The color choice shall conform to SAE International AMS -STD -595 A, Fede ral Standard Colors. The color difference, ΔE, of the acceptance samples shall not be more than five units from the chosen Federal Standard Number submitted. ii. Gloss @ 60° shall be 30 -50 for semi -gloss and 51 or greater for gloss finishes. iii. Flat finishes shall have a gloss of 29 or less.
711.12.3 Physical Requirements: Steel panels shall meet the requirements of
ASTM D609, Type III. Steel panels shall be sandblasted to a white metal blast finish in accordance with SSPC -SP-5, exposed to the at mosphere for 30 days so uniform rusting occurs, and then hand cleaned with a wire brush in accordance with SSPC -SP-2. The panel shall then be spray applied with epoxy maintenance coating according to manufacturers' recommendations.
i.Dry to touch @ 5 mils, dry, 24 Hours Maximum ii. Dry hard @ 5 mils, dry, 72 Hours Maximum iii. Weight per gallon, 10.5 Lbs. Minimum iv. Accelerated Weathering: Panels shall be tested in accordance with ASTM G154. After 1,000 hours exposure, the coating shall show no rusting, blistering, or loss of adhesion to the test panel.
v.Salt Fog: Panels shall be scribed to the base metal with an X of at least two (2) inch legs. The test panels shall then be tested in accordance with ASTM B117. After 1,000 hours of continuous exposure, the coating shal l show no loss of bond, nor shall it show rusting or blistering beyond 1/16 inch from the center of the scribe mark.
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 838–845 of 1,006.