Current Developments in Reinsulating/Waterproofing Underground Steam Mains in New York City
The objective of Con Edison's reinsulation project is to develop the materials and technology necessary to reinsulate those steam distribution mains having excessive thermal...
Water System Infrastructure Rehabilitation Needs in the State of New York
Water systems in many cities particularly in the Northeastern section of the United States are very old. With lack of proper and timely maintenance of the distribution network systems,...
Analysis of New York City's Water Main Replacement Policy
Water distribution main breakage is a perplexing problem for water utilities. To avoid excessive breakage, certain mains should be replaced. However, determining the appropriate mains...
1987-88 Actions on El Paso vs. New Mexico
It has been determined by the City of El Paso that water wells near the Texas-New Mexico borders should be used to supplement their water supply in the years 2000-2020. Opposition to the...
Overview o New England Coastal Flood Study Methodology
This paper presents an overview of the development of methologies used to determine the probabilistic flood levels for New England coastal flood insurance studies. The Federal Insurance...
Watershed Runoff Forecasting Technique
Based on historical records of up to 57 years, a computer model was developed to establish the precipitation - runoff relationship for four reservoir systems in the Northeast portion of...
Analytical Studies of the Schoharie Bridge Failure
Analytical studies consisted of geomorphic, hydrologic, hydraulic, and erosion analyses including mathematical modeling with HEC-1 and WSPRO, the new FHWA water-surface profile model....
Schoharie Creek Bridge Model Study
On April 5, 1987, a major storm occurred in the Schoharie Creek watershed and the resulting flood caused the bridge to fail. The hydraulic model of the bridge was performed to simulate...
Fine Contaminated Sediment Erosion/Deposition in the Buffalo River, New York
This paper documents part of a project which sought to characterize sediment transport in the Buffalo River as a contribution toward planning for dredging or in-place containment of the...
Freshwater Flow from Caves at Chankanaab Park, Cozumel, Quintana Roo, Mexico
The freshwater forms a lense on top of the ocean water and discharges to the ocean through solution channels. One such solution channel is present in Chankanaab Park and is identified...
Bureau of Reclamation's High Plains States Ground Water Recharge Program
The Bureau of Reclamation is conducting a two-phase program to demonstrate the feasibility of recharging declining aquifers in the 17 western states. The U.S. Geological Survey (USGS),...
Aquifer Storage Recovery: A New Water Supply and Ground Water Recharge Alternative
Aquifer Storage Recovery (ASR) involves treated drinking water that is stored underground by injection into a suitable storage zone during those months of the year when available supply...
Artificial Recharge of the Heretaunga Plains Aquifer Hawke's Bay, New Zealand
The Heretaunga Plains groundwater system in the Hawke's Bay region of New Zealand, is naturally recharged from the nearby Ngaruroro River at the approximate rate of 5.5m3/sec....
Distribution System Rehabilitation
Hackensack Water Company has had an on-going program of cleaning and lining its transmission mains to increase their capacity and lower its pumping costs. But by late 1986, the need to...
Inexpensive Geo-Coding for Water Utilities
Geo-Coding enables Hackensack Water Company to optimize meter reading and customer service routing; to analyze water consumption data at a micro level, and relate that data to census and...
Overview of Factors Involved in the Mexico Earthquakes
The Mexico earthquakes provided many opportunities for learning. New knowledge has been obtained and continuing research will provide additional knowledge. The earthquakes have also demonstrated...
Geotechnical Notes on the Effects of Mexico's 1985 Earthquakes
The present notes briefly describe the most relevant effects of the September 19 and 20, 1985 earthquakes on shallow and deep foundations used in Mexico City, which is located at about...
Effects of the 1985 Earthquake in Lazaro Cardenas, Mich.
An account is presented of a geotechnical survey made shortly after the major earthquake of September 19, 1985 (magnitude 8. 1) at the industrial port of Lazaro Cardenas in the state of...
Are the Soil Depositions in Mexico City Unique?
The answer clearly is: YES| However, the amplification and soil-structure interaction effects observed in Mexico City are important considerations - even if they may not be so severe -in...
Analyses of Foundation Failures
During the earthquake of September 19th, 1985, many buildings tilted and underwent settlements, sometimes of very large magnitudes. This paper describes and analyzes these settlements....
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