Item 247, "Flexible Base," for the type and grade shown on the plans, before the addition of cement. 2.4. Water. Furnish water free of industrial waste and other objectionable material. 2.5. Asphalt. When permitted for curing purposes, furnish asphalt or emulsion that meets the requirements of
This Item will be measured by the actual hours the heavy pneumatic tire proof roller unit works as directed by the Engineer. 216.5. Payment. The equipment furnished and operated in accordance with this Item and measured as provided under "Measurement" will be paid for at the unit price bid for "Rolling (Proof)". This price shall be
247---044 Flexible Base. For this project, Item 247, "Flexible Base," of the Standard Specifications, is hereby amended with respect to the clauses cited below, and no other clauses or requirements of this Item are waived or changed hereby. Article 247.2. Materials, Section A. Aggregate, Table 1. Material Requirements is replaced by the ...
5 ft. deep. Excavation protection for excavations deeper than 5 ft. are governed by Item 402, "Trench Excavation Protection," and Item 403, "Temporary Special Shoring." Use satisfactory excavated material as backfill or as embankment fill in accordance with Item 132, "Embankment." Dispose of material not
Item 247, "Flexible Base," for the type and grade shown on the plans, before the addition of lime or FA. 2.5. Water. Furnish water free of industrial wastes and other objectionable matter. 2.6. Asphalt. When permitted for curing purposes, furnish asphalt or emulsion in accordance with Item 300,
The descriptions that follow are contained in this guide; these bases are also most frequently prescribed by the standard specification Item 247. Other information, such as …
Some Articles are not used in every Item. Measurement and Payment Articles are combined when the work described is subsidiary to bid Items of the Contract. HIERARCHY OF ORGANIZATIONAL ELEMENTS Here "XXX" represents the Item number. The hierarchy of organizational elements available below the Item level is as follows: XXX.1., …
Flex Base (TxDOT Item 247) Arcosa Crushed Concrete produces a clean, quality base that can be used on TxDOT projects. Flex Base is commonly used in a wide variety of applications, such as: Underlayment in concrete and asphalt paving. Temporary and permanent roadways. Construction entrances. Driveway and sidewalk construction.
October 16, 2018. Collaborative effort between Texas A&M Transportation Institute (TTI) and Materials & Tests Division (MTD). Provides a basic overview of Item 247, "Flexible. …
Item 247, "Flexible Base," for the type and grade shown on the plans, before the addition of lime. 2.4. Water. Furnish water free of industrial wastes and other objectionable material. 2.5. Asphalt. When asphalt or emulsion is permitted for …
Engineer will verify that the specification requirements are met before the sources can be used. The Engineer may sample and test project materials at any time before compaction. Use Tex-100-E for material definitions. 2.1. Flexible Base. Furnish new base material that meets the requirements of Item 247, "Flexible Base," for the
Adds ride quality and lime treatment to flexible base and provides recycled materials that have a maximum sulfate content of 3000 ppm when tested in accordance with Tex-145 …
REFERENCE ITEMS (210) Go to Top. 247 - FLEXIBLE BASE. SPECIFICATION REQUIREMENTS 1) Specify aggregate type and grade on the plans. 2) Do not use additives such as but not limited to lime, cement, or fly ash to modify aggregates to meet the requirements of Table 1, unless shown on the plans. 3) Material Type E will …
TxDOT Specifications - English and Metric Specification Books, Special Provisions, Special Specifications, Change Memorandums, ... Required on all projects using Item 247 beginning with the July 2009 letting. Replaces SP247-020 . (Change Memo: de-15-09). Statewide Use. ATLANTA - DISTRICT 19: SP247-044
FLEXIBLE BASE. 247.1. Description. Construct a foundation course composed of flexible base. 247.2. Materials. Furnish uncontaminated materials of uniform quality that meet the requirements of the plans and specifications. Notify the Engineer of the proposed material sources and of changes to material sources.
ITEM 432 RIPRAP 432.1. Description. ... Filter fabric shall meet the requirements of Departmental Material Specification D-9-6200, Type 2. (a) Stone (Type R). ... The aggregate for this riprap shall be material conforming to Item 247, "Flexible Base", except for measurement and payment, of the type and grade shown on the plans. Unless
Furnish base material that meets the requirements of Item 247, "Flexible Base," for the type and grade shown on the plans, before the addition of cement. 2.3. Water. Furnish water that is free of industrial waste and other objectionable material. 2.4. Asphalt. Furnish asphalt or emulsion that meets the requirements of Item 300, "Asphalts ...
2014 Local Government Standard Specifications and Special Provisions; 2024 Templates. The templates below are intended for use with items 1-9 in the TxDOT's Standard Specifications and Special Provisions on local government let projects that are on the state highway system or include reimbursement using FHWA or TxDOT funds.
2024 Standard Specification Changes 200 Series Items. 69. Item 247 – Flexible Base. Unconfined compressive strength for. Grade 1-2 may be waived. – Unless otherwise shown on the plans, the unconfined compressive strength is waived when the flexible base material meets a #200 sieve requirement. – #200 sieve requirement added to material ...
Item 616, "Performance Testing of Lighting Systems." 4. MEASUREMENT This Item will be measured as each roadway illumination assembly installed, relocated, or removed; or by each luminaire replaced. 5. PAYMENT The work performed and materials furnished in accordance with this Item and measured as provided under
Some Articles are not used in every Item. Measurement and Payment Articles are combined when the work described is subsidiary to bid Items of the Contract. HIERARCHY OF ORGANIZATIONAL ELEMENTS Here "XXX" represents the Item number. The hierarchy of organizational elements available below the Item level is as follows: XXX.1., …
Use existing base and add new flexible base as required in accordance with Item 247, "Flexible Base," and details shown on the plans to achieve required section. 4.3.2. Lime-Stabilized Base. Use existing base, add new flexible base, …
basic overview of Item 247, "Flexible Base," from TxDOT's 2014 Specification book. Provides personnel of all experience levels with enough information to . designate and associate the appropriate type and grade of flexible base . required for any project.
TxDOT 2014 Standard Specification for Construction and Maintenance of Highways, Streets and Bridges (Specification Book) Item 247, " Flexible Base," TxDOT test methods, Series 100 -E and 400 A, TxDOT Guide Schedule of Sampling and Testing, TxDOT training class CON411, "Inspection of Flexible Base & Embankment," and
Place riprap and toe walls according to details and dimensions shown on the plans or as directed. Concrete Riprap. Reinforce concrete riprap with 6 × 6 W2.9 × W2.9 welded wire fabric or with No. 3 or No. 4 reinforcing bars spaced at a maximum of 18 in. in each direction unless otherwise shown.
Items Referenced in the 2014 Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges Item Title Items, Articles, and Sections Referenced 216 Proof Rolling 210 247 Flexible Base 4, 9, 105, 204, 210, 216, 520 251 Reworking Base Courses 204, 210, 216, 247, 520
Specifications. Test Procedures. Safety Shares. Media. Videos. Podcasts. Education. ... Item 247 Flexible Base. ... As a TXAPA member, you have a platform to speak directly to the entities that impact our industry such as TxDOT, the Federal Highway Administration (FWA), cities, counties, engineering, and architectural firms, and developers. ...