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Water Utility Benchmarks in Dallas City. Mohammed Alfarhan Final project GEOS 5482, Spring 2001 Instructors Dr. Carlos Aiken & Dr. John Ferguson . Introduction. The city of Dallas and water utility bench marks. Nail as benchmark. Drawn square as benchmark.

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water utility benchmarks in dallas city

Water Utility Benchmarksin Dallas City

Mohammed Alfarhan

Final project

GEOS 5482, Spring 2001

Instructors

Dr. Carlos Aiken & Dr. John Ferguson

introduction

Introduction

The city of Dallas and water utility bench marks

how did they locate their benchmarks

Nail as benchmark

Drawn square as benchmark

How did they locate their benchmarks

the objective

The Objective

Take the position and the elevation water utilities benchmarks.

Make comparison between the elevation that the city of Dallas got and the elevation that I got.

the plan

The Plan

Mapsco map

First

Looking for the point

second gps selection

Leica GPS

Second

GPS selection

third time select

Number of satellites

PDOP

Third

Time select

the day of the work

The day of the work

First time

on Sunday April 22nd

Windy

Second time

on Wednesday 25th

Start the work

the difficulties

The difficulties

Nail trace

drawn square

First

Finding the points

second the trees third the dark

Taking data beneath the tree

Second

The trees

Third

The dark

data process

Data process

Arlington core station

Selecting the core station

data correction

Base station data before correction

Base station data after correction

Data correction

the results

The results

Elevation data comparison

water utilities benchmarks before and after correction
Water utilities benchmarks

before and After correction