868 by twelve ( 12) inches. The edge drain shall permit inflow on both sides of the drain and produce a minimum flow rate of 10 gal/minute/ft of width as determined by AS TM D4716. Flow rates shall be based on a hydraulic gradient of 0.1 and a confining pressure of 10 psi using a closed -cell foam rubber layer on both sides. The height of the edge drain shall be as shown on the Plans.
715.10.1 3-Fabric: The fabric shall be suitable for subsurface drainage applications
and shall meet the requirements of 715.11 except the minimum tensile strength shall be 90 lbs. The fabric shall be bonded to or stretched tightly over the core support contact points.
715.10.1 4-Fittings: All fittings shall be in accordance with the manufacturer’s
published specifications.
715.10.1 5-Outlet Pipe: The outlet pipe shall be a smooth inner wall unperforated pipe
meeting the requirements of 714.19 (AASHTO M 252, Type S only) or 714.22
715.10.1 6-Acceptance: All components of the edge drain shall be approved before
use. The Contractor shall furnish certified test data with the material supplied for each project. Tests for all required properties shall be performed in accordan ce with the procedures specified. Compliance of this data with the requirements specified will be the basis of acceptance.
715.11 Engineering Fabric :
715.11.1 General: Engineering fabric shall meet the applicable requirements of
AASHTO M 288.
715.11.2 Acceptance: All engineering fabric shall be approved before use. NTPEP test
data shall be furnished for the engineering fabric to be approved. The test data must be for the current 3 -year cycle for the manufacturer or private labeler providing the material. The engineering fabric shall have a manufacture date within the current three -year NTPEP evaluation cycle of the manufacturer’s, or private labeler’s facility pro viding the material. The manufacturer or private labeler must be listed as NTPEP compliant for the current calendar year or be listed as compliant for the previous calendar year and have an application for audit during the current year. The West Virgini a Division of Highways may sample and test materials from a project or facility at any time to verify compliance with WVDOH specification requirements. Failure of the product, or failure to supply the required information may result in the product not bein g accepted or removed from the approved list.
715.11.3 Maintenance and Repairs: Any fabric damaged or displaced shall be replaced
or repaired at the Contractor ’s expense. Any fabric, other than that used for silt fence, not covered within 14 days after installation shall be removed and replaced at no expense to the Division. Minor tears or ruptures in the fabric may be repaired by sewing or by placing another piece of fabric over the damaged area so that the overlap is at least two ( 2) feet in each direction or as directed by the Engineer.
715.11.4 Engineering Fabric for Subsurface Drainage: Engineering fabric for
subsurface drainage shall meet the applicable requirements of AASHTO M 288, Section 8, 869 Class 2. Additionally, the permittivity shall be a minimum of 0.2 sec-1 and the apparent opening size shall be no larger than No. 60 (250 m) sieve.
715.11.5 Engineering Fabric for Sediment Control (Si lt Fence): Engineering fabric for
sediment control shall meet the applicable requirements of AASHTO M 288, Section 9.
715.11.6 Engineering Fabric for Erosion Control: Engineering fabric for erosion
control shall meet the applicable requirements of AAS HTO M 288, Section 8, Class 1.
715.11.7 Engineering Fabric for Paving: Engineering fabric for paving shall meet the
applicable requirements of AASHTO M 288, Section 10.
715.11.8 Engineering Fabric for Separation: Engineering fabric for separation s hall
meet the applicable requirements of AASHTO M 288, Section 8, Class 2.
715.11.9 Engineering Fabric for Stabilization: Engineering fabric for stabilization shall
meet the applicable requirements of AASHTO M 288, Section 8, Class 1.
715.11.10 Engi neering Fabric for Pumped Sediment and Erosion Control
(Dewatering Device) : Each standard Dewatering Device shall have a fill spout large enough to accommodate a four ( 4) inch discharge hose with attached straps to secure the hose and prevent pumped water from escaping without being filtered. The device must be able to accommodate a minimum flow rate of 1 ,000 gal per minute for the application for which it is to be used and a minimum size of 100 square feet. The Dewatering Device shall be a nonwoven bag , which is sewn with a double needle stitching using a high strength thread. The Dewatering Device seams shall have an average wide width strength per ASTM D4884 of 100 lb/inch . The geotextile fabric shall be nonwoven fabric with the following properties: PROPERTIES TEST METHOD Grab Tensile ASTM D4632 250 lbs. Puncture ASTM D4833 165 lbs. Flow Rate ASTM D4491 70 gal / min / square foot Permittivity ASTM D4491 1.3 Sec. -1 Mullen Burst ASTM D3786 550 lbs. / square inch UV Resistant ASTM D4355 70 % AOS % Retained ASTM D4751 100 % * All properties are minimum average roll value.
715.12 Concrete for Miscellaneous Uses :
Concrete specified in this Section is intended for such uses a cast -in-place footers for right - of-way fence and footers for guardrail breakaway cable terminals and special trailing end terminals. The concrete m ay be mixed with or without air entrainment at the option of the Contractor. Batching and mixing may be by hand, by portable mixer, or by a commercial plant. At the time of placement, the concrete shall be of a workable consistency which can be 870 consolida ted satisfactorily by spading or vibrating. Indications of initial set in the concrete to such an extent as to adversely affect the workability of the concrete during placement shall be cause for rejection. The concrete shall be in accordance with one of the following:
i.Concrete produced for other construction items under an approved mix design. ii. Concrete produced from premixed ingredients sold commercially in acceptable sacks, such as "Sacrete", or "Quickrete", "Handicrete ” or approved equal. Pre mixed commercial preparations shall be mixed in accordance with the manufacturer's instructions. iii. Concrete produced from separate components proportioned by volume in the ratio of one part Portland cement to two parts sand to three parts coarse aggre gate. Sand and coarse aggregate shall be visually inspected for deleterious substances, and such matter shall be removed prior to mixing.
715.13 Preformed Fabric Pads :
Material shall conform to the requirements of the AASHTO Standard Specifications for Highway Bridges, Division II, Section 18.4.10.1. A certified copy of test reports showing compliance with the above requirements shall be furnished the Division's Shop Inspector, or to other representatives of the Division as may be designated, for each shipment.
715.14 Elastomeric Bearing Pads :
Bearing pads shall meet the requirements of the AASHTO Standard Specifications for Highway Bridges, except for sampling frequency.
715.14.1 Sampling Frequency for Elastomeric Bearing Pads: The sampling rate shall
be one bearing pad per lot, per nominal dimensional size. (A chang e in nominal dimensional size is any change in the designed length, width or height of the bearing pad.)
715.14.2 Approval for Bearing Pads Without Shims: Beginning January 1, 2024
bearing pads that do not include shims or internal stiffeners will only be accepted using NTPEP test results and a certificate of compliance from NTPEP. Prior to January 1, 2024 the WVDOH will accept NTPEP test results and a c ertificate of compliance from NTPEP for approval of bearing pads without shims or internal stiffeners, or a company without NTPEP test results and a certificate of compliance from NTPEP can still submit bearing pads for acceptance testing using 715.14 and 715.14.1 until December 31, 2023.
715.15 Elastomeric Bearing Pads for Bridge Railing Posts :
Elastomeric bearing pads for bridge railing posts shall have a thickness of 1/8 inch unless modified by the project plans. The pads shall have a minimum tensile strength of 1,000 psi (7 M pa) when tested in accordance with ASTM D412. The pads shall have a durometer hardness of 55 to 75 when tested in accordance with D2240.
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 890–892 of 1,006.