author: american association of state highway and transportation officials

Guide for Consultant Contracting

... contract with a consultant to oversee and manage the outsourcing of professional services to other consultants. With ... subconsultant. The original firm is normally known as the prime consultant. When a firm hires a subconsultant, the ...

Quality Assurance Guide Specification

... AASHTO T - 217 / 265 AASHTO T - 238 / 191 MOISTURE DENSITY 1 PER 1,000 CU YDS 1 PER 1,000 CU YDS AASHTO T - 217 / 265 AASHTO T - 238 / 191 EMBANKMENT AT BR APPROACH ( 100 FT ) PRODUCTION : AGGREGATE for BASE & SUBBASE PRODUCTION ...

Traffic Data Collection, Analysis, and Forecasting for Mechanistic Pavement Design

... load spectra so that readers can understand what is important to ensure accurate load estimates, why some data- collection plans are better than others, and why specific data are requested for developing accurate load estimates. Section ...

Guide Specifications for Aluminum Highway Bridges, 1991

... ( ASTM 8316 Alloy 6061 - T6 ) conforming to the re- quirements of MIL - R - 1150F ; coated high strength steel bolts AASHTO M164 ( ASTM A325 ) or stain- less steel bolts ( ASTM F593 Alloy Group 1 , 2 , or r3 ) . Table XX.2B Material ...

The Manual for Bridge Evaluation

... ACI . 2005. Building Code Requirements for Masonry Structures and Commentary , ACI 530-05 . American Concrete Institute . AISC . 1990. Iron and Steel Beams 1873 to 1952. American Institute of Steel Construction . AISC . 2005. Steel ...

Highway Drainage Guidelines

The Highway Drainage Guidelines provides a consolidated overview of highway hydraulic design and discusses possible hydrology problems in the following areas: Hydraulic Considerations in Highway Planning and Location; Hydrology; Erosion and ...

Mechanistic-empirical Pavement Design Guide: A Manual of Practice

... AASHTO T 88 AASHTO T 89 AASHTO T 90 AASHTO T 99 AASHTO T 100 AASHTO T 180 AASHTO T 190 AASHTO T 193 AASHTO T 206 AASHTO T 207 AASHTO T 215 AASHTO T 258 AASHTO T 265 AASHTO T 307 ASTM D 2487 Particle Size Analysis of Soils Determining ...

Standard Specifications for Highway Bridges

... M 253 ( ASTM A 490 ) bolts except as follows : • • Hardened washers shall be used under the turned element when tensioning is to be performed by cal- ibrated wrench method . Irrespective of the tensioning method , hardened washers shall ...

Guide Specifications for Design of FRP Pedestrian Bridges

... AASHTO Standard Specifications for Highway Bridges, 17th Edition. These Guide Specifications apply to all bridge types but specifically to fiber reinforced polymer (FRP) composite construction materials. The term “primarily pedestrian ...

Guidelines for Historic Bridge Rehabilitation and Replacement

... bridges do not meet current safety standards for crashworthiness, minimum height ... AASHTO LRFD Bridge Design Standardshave adopted the test levels specified in ... Standard Specifications for Highway Bridges, 17th Edition. Deficient ...

Standard Specifications for Highway Bridges: Division I - Design, Draft Copy

The Standard Specifications for Highway Bridges is intended to serve as a standard or guide for the preparation of State specifications and for reference by bridge engineers.

Roadside Design Guide

... snug tight . Snug tight was defined as the condition where the nut is in full contact with the base plate , and it was assumed that the full effort of a workman on a 300 mm ( 12 in ) wrench results in a snug - tight condition . This ...

Interim Specifications and Methods of Sampling and Testing Adopted by the AASHTO Subcommittee on Materials, 1984

... ASTM A751 . Change Section 6.5 to read : 6.5 In addition , when galvanized bolts and nuts are supplied , the bolt / nut assembly shall be tested full size in an assembled joint as specified in 8.5 . This rotational - capacity test is to ...

Roadway Lighting Design Guide

... pole mechanical and electrical characteristics • breakaway device options ... calculations require the input of all light sources, including offroadway ... Lighting Design Guide.

Guide Specifications for Highway Construction

... AASHTO M 173 or M 282 as specified . Other types approved by the Engineer may be used . Preformed fillers for joints shall conform to the requirements of AASHTO M 33 , M 153 , M 213 , or M 220 as specified , and shall be punched to ...

Standard Specifications for Transportation Materials and Methods of Sampling and Testing

... ASTM D 2751 5.1.3 Acrylonitrile - Butadiene - Styrene ( ABS ) Plastic Drain , Waste and Vent Pipe and Fittings ... 2729 5.2.6 Type PSP Polyvinyl Chloride ( PVC ) Sewer Pipe and Fittings : ASTM D 3033 5.2.7 Type PSM Polyvinyl Chloride ...

Standard Specifications for Transportation Materials and Methods of Sampling and Testing

... AASHTO Standards : □ T 99 , Moisture - Density Relations of Soils Using a 2.5 - kg ( 5.5 - lb ) Rammer and a 305 - mm ( 12 - in . ) Drop □ T 180 , Moisture - Density Relations of Soils Using a 4.54 - kg ( 10 - lb ) ... AASHTO T 310-2.

Interim Specifications and Methods of Sampling and Testing

... AASHTO T 191 Test for Fineness of Hydraulic Cement by the 0.045 mm ( No. 325 ) Sieve . 13. NORMAL CONSISTENCY 13.1 Determine normal consistency by the Vicat apparatus in accordance with AASHTO T 129 , Test for Normal Consistency of ...

Protection of Pipelines Through Highway Roadbeds

... AWWA for different applications . API rec- ommends that coating and cathodic ... testing , instal- lation , and materials for pipeline coatings in their ... Hydrostatic testing is also required for hazardous liquid pipelines . Such tests ...

AASHTO Quarterly

... Green Up Day 1978 Plans Unfold for AASHTO Convention 27 28 Public Works ... Book Wins Award 31 Indiana Map 31 Letter to the Editor 31 1978 AASHTO ... free parking areas for handicapped persons , and parking areas for package express and ...

Proceedings: Convention Group Meetings, Papers and Discussions

... ASTM D3963 or AASHTO M284 documents . A review of these ASTM and AASHTO speci- fications ( including drafts ) from 1981 to 1992 show that these mentioned differences and oth- ers have been changed , starting in the 1989 to 1992 ...

Guide Specifications for Design and Construction of Segmental Concrete Bridges, 1989

... ( ASTM - A767 ) or " Specification for Epoxy - Coated Reinforcing Steel Bars " ( ASTM D3963 or AASHTO - M284 ) . Zinc or epoxy - coated reinforcing bars shall conform to one of the specifications listed in Section 3.2.1 . 3.3 Plain ...

Standard Specifications for Transportation Materials and Methods of Sampling and Testing

... ASTM the material manufacturer , the structural products shall be accepted ... A 751 . 7.1.2 For each heat , the heat analysis shall include determi ... A 751. The product analyses so determined shall conform to the heat analysis ...

AASHTO Maintenance Manual for Roadways and Bridges

... Quality Control and Quality Assurance of Bridge Maintenance Operations Quality Control/Quality Assurance (QC/QA) is an important part of supervision. QC is normally performed within the group or the maintenance crew. It includes ...

AASHTO LRFD Bridge Design Specifications: SI Units

The concept of safety through redundancy and ductility, and protection against scour and collision are emphasized. The design provisions of these Specifications employ the Load and Resistance Factor Design, LRFD, methodology.

AASHTO Guide for Design of Pavement Structures, 1993

Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement ...

AASHTO Transportation Asset Management Guide: A Focus on Implementation

... FDOT's planning process. As can be seen in the figure below, the planning ... Project level 5/10 yr FDOT plan/ objectives FDOT program/ budget link ... management. © 2011 by the American Association of State Highway and Transportation ...

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