Environmental Restoration Measures on the Tennessee-Tombigbee Waterway (TENN-TOM)
The Tenn-Tom, opened to navigation traffic in 1985, was designed and constructed to promote environmentally sustainable development. During the past ten years, the original measures have...
Channel Restoration of Incising, Mixed Grain Size Streams: Lessons Learned
Aquatic habitat restoration in incising sand and gravel bed streams disturbed by channelization and other human interventions has received little study. These channel systems are characterized...
Stream Instability in Loess Base Channels
The incision of bess base stream channels is a common and destructive response to alterations within a watershed in the midwest. Monitoring and evaluating procedures are being performed...
From Natural Disaster to Human-Caused Disaster
This paper deals with the assessment of the environmental effects of the channelization, which has been monitored throughout the first year after completion of the project. Although the...
A New Technique for Measuring Vegetation Density
Detennination of the discharge capacity of a vegetated channel or floodplain requires a reasonable estimate of a flow resistance coefficient; such as Manning'
Contraction Scour at Bridges: Analytic Model for Coarse-Bed Channels
Contraction scour at bridges spanning coarse-bed channels is evaluated based on mass conservation of both water and transported sediment between a reference channel section near the crossing...
Fish Passage Pool Bedding Analysis
Anadromous fish passages, stream dynamics and the artifical channel segmented into a natural stream should fttnction seamlessly. This paper intends to develop reasonable procedures a designer...
Sediment Deposition in the Navigation Approach Channel of Three Gorges Project
In this paper, a comparison is made between the problems of sediment deposition in the navigation approach channel of Gezhouba and Three Gorges Project. The investigation shows that the...
The Influence of Peak-Regulation of the Three Gorges Power Plant on Navigation
The paper studies the unsteady flow resulted from peak-regulation by daily regulation at both Three Gorges and Gezhouba Power Plants and concludes that the river section between the dam...
Stochastic Determination of Wave Heights for Flood Control Channels
Physical model data for subcritical and supercritical flow has been collected and analyzed to determine a statistically-based relationship for wave runup heights in a trapezoidal channel....
Optimal Sizing of Width- and Depth-Constrained Trapezoidal Channels
Open-channels are often designed based on the assumption of uniform flow and normal depth. If a channel is to be lined with a nonerodible material, the dimensions of the channel can be...
Sedimentation Dynamics of Tidal Inlets
Tidal inlets are very dynamic systems subject to continuous morphological changes under the action of tides, waves and transported sediments. Although flow and sediment dynamics are interactive,...
Dynamic Duo
From the record-breaking 22 nominees for the Outstanding Civil Engineering Achievement (OCEA) award this year, two very different projects were singled out for Merit Awards. The Fred Hartman...
Pipeline Crossings
Evaluation Findings
the Segmental Concrete Channel Bridge System
Prepared by the Highway Innovative Technology Evaluation Center, a CERF Service Center. This report presents the findings of a HITEC evaluation of...
Columbus Clear Wells
At an average of 8 million gal. each, six new clear wells at the Hap Cremean Water Plant in Columbus, Ohio represent the largest post-tensioned, reinforced concrete noncircular tanks ever...
Taming the Red River
The U.S. Army Corps of Engineers completed its last great waterway project, the Red River Waterway in Louisiana, Dec. 31, 1994. The project took more than a quarter of a century and $1.8...
Hydraulic Design of Flood Control Channels
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 10. This guide presents procedures for the design analysis...
Stormwater Management Solution
Flash floods are a threat to both existing homes and future development in the Scottsdale, Ariz., area. Engineers studies various alternatives for effective stormwater management an weighed...
New York Gets Wired
With users of New York City DOT's computer-aided drafting and design reaching the limits of the computer system, the department decided to turn the situation to its advantage,...
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