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Milwaukee, WI, United States

Zienty D.,Short Elliott Hendrickson Inc.
Journal of Protective Coatings and Linings | Year: 2010

The appropriate method for attaching telecommunications antenna and coaxial cable support brackets to water towers is based on factors such as the function/purpose of the bracket, the water tank design, and the tank's structural integrity requirements. The methods employed for attachment includes stud-welding, which is used on standpipes and ground storage reservoirs to avoid excessive damage to a coating system. Another method includes bolting that can be applied to water towers with support columns such as pedestal and fluted designs. Seal welding that involves direct fillet welding of the attachment base plate to the tower and requires removal of the surface coating from the heat-affected area of both the attached component and tower prior to placing a full fillet weld around the perimeter of the base metal. A study conducted to assess the effects of attachment methods includes stud welding, bolting welding and seal welding, which showed that the structural properties of seal welding made it suitable for attaching support brackets for telecommunications equipment.

Zienty D.,Short Elliott Hendrickson Inc.
Journal of Protective Coatings and Linings | Year: 2013

The city of Anoka, MN, completed the reconditioning of its 400,000-gallon water storage tank in 2003. The significance of the project was that the tank provided the opportunity to test and compare the performance of three coating systems for reconditioning interior surfaces in immersion and above the high water line. Systems tested included two NISF-approved AWWA standard multi-coat systems. An inspection conducted in 2005 had shown that all three systems were performing well without facing any problems. The city awarded a contract to an engineer in 2009 to perform a periodic inspection of the tank, including the interior surfaces. The results of the evaluation led to planning between the city and the engineer for the completion of maintenance repairs scheduled to be conducted in 2011.

Sloan B.P.,University of Iowa | Sloan B.P.,Short Elliott Hendrickson Inc. | Basu N.B.,University of Waterloo | Mantilla R.,University of Iowa
Agricultural Water Management | Year: 2016

Installation of subsurface drainage systems is one of the most common modifications of the agricultural landscape, and while it is well accepted that these systems alter the hydrologic regime, the nature and magnitude of such alterations remains poorly understood. We explore the impact of drainage systems using the field-scale model DRAINMOD and rainfall and soils data for Iowa. Our objective is to understand how climate, landscape and anthropogenic controls modify the hydrological response at the field scale. We show that drainage systems do not significantly alter the annual peak flows (QP). This is because QP is typically generated by the largest storms of the year for which the additional soil storage created by the drains does not significantly alter the total quick-flow volume of water entering the streams, and thus the hydrograph peaks. We identify a threshold storm size (~6cm/day for Iowa) beyond which tiles have minimal impact on the peak flow. Effects are apparent, however, for peak flows generated by other storms in which the percent of peak flow reduction is a function of the storm size and the antecedent moisture conditions. The effect of the drains on runoff production is further investigated using the daily Flashiness Index (FI). For soils with high hydraulic conductivity (K), tile drains increase the FI due to faster flow routing through subsurface drains, while for soils with low K, drainage decreases flashiness due to availability of increased soil storage that reduces surface runoff. We conclude that tile drains homogenize spatial patterns in hydrologic response by minimizing response differences between soil types. Furthermore, we investigate the effects of tile spacing and show that the FI decreases with an increase in drain spacing up to an optimal spacing (SM), beyond which FI increases with greater spacing. The FI-SM relationship was found to be a function of soil type and rainfall intensity, with the U-shaped behavior more apparent for low K soils and high rainfall intensity. © 2015 Elsevier B.V..

Sear T.R.,Short Elliott Hendrickson Inc. | Martin F.J.,Short Elliott Hendrickson Inc. | Isaacs S.G.,026 New Jersey Avenue | Hron S.,155 Pilgrim Road | Brault A.,Sheboygan County
World Environmental and Water Resources Congress 2013: Showcasing the Future - Proceedings of the 2013 Congress | Year: 2013

The Sheboygan River discharges into Lake Michigan at the City of Sheboygan, Wisconsin. In 1985, the lower Sheboygan River and Harbor was designated an Area of Concern (AOC) by the U.S. Environmental Protection Agency. The City of Sheboygan, Sheboygan County, and the Wisconsin Department of Natural Resources are implementing the Sheboygan River AOC Habitat Restoration Projects to address habitat-related beneficial use impairments (BUIs). The overall objective of these projects is to transform degraded areas and restore the natural habitat functions of the river corridor using various bioengineering techniques. The projects will stabilize eroded stream banks and improve shoreline habitat for fish, herptiles, birds, and wildlife. Invasive species management is also a major component of the restoration plan. Three sites were targeted for restoration including: (1) the Taylor Drive/Indiana Avenue Site, (2) the Wildwood Island Site, and (3) the Kiwanis Park Site. © 2013 American Society of Civil Engineers.

Sear T.R.,Short Elliott Hendrickson Inc. | Elliott P.C.,Milwaukee Metropolitan Sewerage District | Chapman T.W.,Milwaukee Metropolitan Sewerage District
World Environmental and Water Resources Congress 2012: Crossing Boundaries, Proceedings of the 2012 Congress | Year: 2012

The Kinnickinnic River (KKR) Watershed is an approximately 25 square mile, highly urbanized drainage area, located in south central Milwaukee County. The KKR has undergone considerable alteration in the past, including channel widening and realignment, and the installation of concrete lining. The Milwaukee Metropolitan Sewerage District (MMSD) has initiated a series of flood management projects within the KKR Watershed that address watercourse rehabilitation, neighborhood revitalization, and the provision of community and recreational benefits. MMSD recently completed an "early out" final design and construction project that included the replacement of the South 6 th Street Bridge, and the rehabilitation of approximately 1,000 feet of KKR watercourse. Watercourse improvements included: removal of 500 feet of concrete lined channel; development of 1,000 feet of stone-lined main channel, with stable floodplain areas and embankments; and the provision of appropriate flood management, native vegetated communities, and enhancements that facilitate maintenance and community access to the river. © 2012 ASCE.

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