Out with the Old
When the Sunshine Skyway Bridge over Tampa Bay, Fla., was partially destroyed in an accident twelve years ago, officials at the Florida Department of Transportation decided to replace...
Boston's City within a City
The Massachusetts Water Resource Authority's 11-year effort to clean up Boston Harbor is in full swing. The nerve center of the project is Deer Island, a 210 acre site that...
RCC at 10
Tens years after the first roller-compacted concrete (RCC) dam in the U.S.�the 169 ft high Willow Creek Dam in Oregon�was completed, the method has gained wide acceptance around the world...
Waterfall Aeration Works
When they sought an alternative for instream aeration in Chicago's Calumet Waterway System, engineers at the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC)...
Instrumenting the `Y'
Segmental bridges are still relatively new to the U.S. and questions persist about their design and behavior. To expand the knowledge base, a number of laboratory and field studies have...
Perils of Point Loma
Rupture of the Point Loma sewage outfall in San Diego on Feb. 2, 1992, sent 180 mgd of primary-treated sewage coursing into shallow waters off the city's coastline. The article...
Managing for Profit
Clients hire firms today for their ability to manage, not just design and draw. Project managers must address owner requirements for cost, quality and schedule. The three are inseparable....
Tunnel Takes Cathodic Protection
Cathodic protection is nothing new for bridges and parking garages, but it has never been installed in a tunnel�until now. As part of a $15 million rehabilitation project, the method is...
Tying Back a Landslide
A slope covered with landslide debris is never the most desirable site on which to build, but sometimes it is the only one available. For the Forks of Butte hydroelectric power project,...
Manholes and Microtunneling
Contractors are for the Oakwood Beach Interceptor Sewer Project, on Staten Island, N.Y., were having difficulty. Glacial tills and a high water table made working 90 ft below the ground...
In Too Deep
Urban excavation is fraught with risks and potential liability for engineers and contractors. Environmental issues (such as Superfund regulations and environmental impact statements),...
Settling Down Easy
In order to more fully participate in the international and Asian Pacific aviation network, it was decided to establish a highly efficient 24-hour a day operation at the New Kansai International...
School Is In Session
Cost overruns, project delays and the city bureaucracy have given school construction a bad reputation throughout the U.S., particularly in urban centers. But as other construction markets...
Winter Sewer Construction in Campbell Lake
This paper discusses the winter construction for replacement of the Campbell Lake portion of the Campbell Creek C-5 Trunk (C-5 Trunk) located in Anchorage, Alaska (see Figure 1). A previous...
Processed-Snow Foundation Design at the Summit of the Greenland Ice Cap
The design and construction of a processed-snow foundation berm for an elevated building located at the summit of the Greenland Ice Cap is described. Weather conditions and design provisions...
Privatization Takes Flight
The number of air travelers in the U.S. is projected to double by early in the next century. Delays have also been mounting rapidly. Major airports around the world are facing the same...
Trouble on the Waterways?
Crumbling highways and bridges can cripple the U.S. economy. A lesser known transportation problem is the condition of our inland waterway system. Waterways are a cost-efficient, environmentally-sound...
The PowerBarge
Following a brief description of the prefabricated floating PowerBarge concept, the range of application and expected cost and time savings is presented. Environmental benefits are described...
Recirculation Piping Replacement Project at Dresden Unit 3
This paper discusses the Recirculation Piping Replacement Project performed at Dresden Unit 3 during 1985 and 1986. It describes several of the technical and administrative problems associated...
Projections for Reduction in Lake Acidification From SO2 Emission Reductions
The Acid Deposition Assessment Model (ADAM) is used to assess the possible range of effects of a national acid rain emission reduction plan on lake chemistry and fish populations in the...
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