ASCE 38-02 PDF

The American Society of Civil Engineers (ASCE) has developed a National Consensus Standard titled ASCE C-I , Standard Guidelines for the Collection. ASCE Standard Guideline for the. Collection and Depiction of Existing Subsurface Utility Data. Statement of Purpose. The American Public Works. of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation policies, and utility design. (CI/ASCE 02).

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QL A information in the form of test hole logswhen included in the project bid documents, may yield more favorable bids due to reduced contractor uncertainty about subsurface conditions. Views Read Edit View history.

The ASCE standard presents a system of classifying the quality of existing subsurface utility data. Accuracy levels expand upon ASCE Quality Level A, prescribing a finer level of detail to define the positional location of the infrastructure. Interested in getting the latest industry news?

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The Standard ASCE 38-02

This page was last edited on 10 Marchat The services that can be provided through either of these contracts include:. The standard closely follows concepts in place in the SUE profession. Quality Level C “QL C” involves surveying visible above-ground utility facilities, such as manholes, valve boxes, posts, etc. Therefore, its usefulness may be limited to preliminary design reviews or to projects with minimal anticipated conflicts.

Non-destructive surface geophysical methods are then leveraged to determine the presence of subsurface utilities and to mark their horizontal position on the ground surface. Such a classification allows project owners, engineers, and constructors asfe develop strategies to reduce or allocate risks due to existing subsurface utilities in a defined manner.

ASCE sets out guidelines for how to qualify the accuracy of mapping existing infrastructure and relay that information to a drawing.

A/I/DATA – Standards

Engineer on December 27, very detailed Thanks By zaki W. Information obtained by exposing and measuring the precise horizontal and vertical position of a utility at a specific point. Rich Horstmann may be contacted for information regarding the level of utilization of each consultant contract. Subsurface Utility Engineering – Part 1: Quality Level A Information obtained by exposing and measuring the precise horizontal and vertical position of a utility at a specific point.

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Compare the various techniques used to acquire utility locations. Professional Organizations No results found. Quality Level D Information derived from existing records or oral recollections. Preliminary utility information gathering; Visual observation and surveying of above-ground utility aece Surface marking of buried utilities; Exposing and surveying the location of buried utility facilities; Utility facility mapping asfe CADD drawings; Utility relocation planning and design.

In this situation a SUE provider would collect the required information and add it to the asset management database, according to the four quality levels prescribed by ASCE Standard The consultant may not proceed with any work until the NTP letter has been sent out. Recognize the original individuals involved in the development of SUE.

The standard defines four Quality Levels of utility data. It may provide an overall “feel” for the congestion of utilities, but it is often highly limited in terms of comprehensiveness and accuracy. A conflict matrix is also created to evaluate and compare collected utility information with project plans, identify conflicts and propose solutions. This is a branch of engineering ase that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation policies, and utility design.

ASCE Standard 38-02

Subsurface Utility Engineering – Part 2: The different levels are described below: Orphaned articles from January All orphaned articles. It combines two basic concepts. The services that can be provided through either of these contracts include: Thanks By zaki W.

The concept of SUE is gaining popularity worldwide as a framework to mitigate costs associated with project redesign and construction delays and to avoid risk and liability asfe can result from damaged underground utilities.

Its systematic use can provide both a means for continual improvement in the reliability, accuracy, and precision of future utility records; and immediate value during project development. SUE is mainly used at the design stage of a capital works project and when information is being collected for asset management purposes.

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This activity is called “designating”. Photo examples would be a good addition showing the surveys taking place By Scott D.

The course begins by discussing the history behind the development of the Standard. Slope Stability 2 hours.

The first concept is the means of classifying the reliability of the existence and location of utilities already installed and hidden in the ground. No formal procedure has been established for CDOT personnel to follow in selecting one consultant versus the other for a particular project, but over the term of the two NPS contracts 2 yearsapproximately equal utilization of each firm is desirable.

E What is S. Subsurface Utility Engineering SUE refers to a branch of engineering that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation policies, and utility design.

Click on the Quality Levels tab above for definitions. The Standard Guideline for Underground Utility Mapping in Malaysia was launched in to create, populate and maintain the national underground utility database. This Standard establishes procedures for the mapping of utilities for the purposes of reducing the uncertainties created by existing underground utilities.

Engineer, Land Surveyor on January 12, Should be a video presentation. With this massive web of active and abandoned underground utility systems in place, all new excavations are at risk of encountering unplanned utility conflicts and causing potential damage.

This information may be sufficient to accomplish preliminary engineering goals, by helping the designer to determine where to place storm drainage systems, footers, foundations, and other design features in order to avoid conflicts with existing utilities.