Joost W van Dam Articles

Comparison of different targeting methods for watershed management practices implementation in Taleghan dam watershed, Iran

Soil erosion and sediment control is important in watersheds with planned dam construction. For an efficient implementation of watershed management practices, identification of critical areas is vital. Many studies have made an effort to identify and prioritize critical sub-watersheds. But very limited studies have been conducted to rank sub-watersheds in terms of their sediment yield ...

Apr. 29, 2016

By IWA Publishing
Coupled dam-break flow and bed load modelling using HLLC-WAF scheme

A two-dimensional numerical model predicting flow over a mobile bed has been developed. Governing equations consist of the shallow water equations and the Exner equation. The finite volume method on an unstructured triangular grid was deployed to discretize the governing equations. The local Riemann problem is solved by the Harten, Lax and van Leer–contact (HLLC) method in the interface of ...

Jun. 23, 2015

By IWA Publishing
Coupled dam-break flow and bed load modelling using HLLC-WAF scheme

A two-dimensional numerical model predicting flow over a mobile bed has been developed. Governing equations consist of the shallow water equations and the Exner equation. The finite volume method on an unstructured triangular grid was deployed to discretize the governing equations. The local Riemann problem is solved by the Harten, Lax and van Leer–contact (HLLC) method in the interface of ...

Jun. 23, 2015

By IWA Publishing
7. Lower Regge Project Implementation

In this chapter we address the last portion of the Regge river. The river now flows in large streamlined curves. While not clearly visible in the map or picture below, the municipal boundaries between Hellendoorn, Ommen and Twenterand actually twist around the river, revealing the old natural course of the river. Near Ommen the river flows as a tributary into the Vecht River. ...

Jan. 27, 2012

By IWA Publishing
Ceco Pipeline Services - Case Study

Grant Scott Project Manager Ceco Pipeline was hired to install a new pipeline on the edge of Arcadia Lake in Edmond, OK. Ceco’s client was Southern Star Central Gas Pipeline Company. The new pipeline was installed 8’ below ground. The working area was about 200’ by 80’ water depth ranged from 3’ to 4’. To remove the lake water from the work site, ...

Dec. 17, 2020

By Dam-It Dams, Inc.
Boat Ramp Location: Lincoln, NE - Case Study

Cofferdam Size: 4′ high x 250 Water Depth: 3′ Installation Time: 4 hours Project Description: Cofferdam was used to de-water the work site to allow for a new concrete boat ramp to be ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Boat Ramp Location: Lake Vermillion, MN - Case Study

Cofferdam Size: 6′ high x 260′ long Water Depth: 4′ Installation Time: 6 hours Project Description: Dam-It Dams provided a temporary water-filled cofferdam that was needed by the Minnesota DNR to construct a new boat ramp that would allow access by its seaplane to Lake ...

Dec. 21, 2020

By Dam-It Dams, Inc.
United Arab Emirates, Dubai - Case Study

Location: United Arab Emirates, Dubai Cofferdam Sizes: 8′ high x 50′ long Water Depth: 5′ Installation Time: 3 hours Project Description: A Dam-It Dams cofferdam was used to block water in a canal to allow the contractor to extend the water fountain in the retention pond. Holding back water to allow a project to proceed is greatly facilitated ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Lansing, MI - Case Study

Location: Lansing, MI Cofferdam Size: 4′ high x 100′ long Water Depth: 3′ Installation Time: 4 hours Project Description: Pipeline Repair A dry work environment is required for the installation and/or repair of utility, oil and other pipelines. Dewatering, damming or diverting water are the best options for creating such an environment. Our ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Dundee, MI - Case Study

Location: Dundee, MI Cofferdam Sizes: 8′ high x 100′ long Water Depth: 5-6′ Installation Time: 8 hours Project Description: A Dam-It Dams cofferdam was used to temporarily block water flow in a river to allow installation of a new 36″ gas main. Spanning a river above or below water often requires a dry work environment. The length of ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Wetlands Preservation Stockbridge, MI #2 - Case Study

Wetlands Protection- Location: Stockbridge,MI Cofferdam Size: 8′ high x 120′ long Water Depth: 4-5′ Installation Time: 3-5 hours Project Description: Repair break in gas main Wetlands Protection is a vital concern. When a project site is located in a wetland, unique equipment is often needed to protect the area from further damage while ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Tips for diverting water on construction projects

For the vast majority of construction projects, a dry worksite is something that’s essential. In many cases though – such as when working in flowing water to repair a bridge – it’s not easy to provide one. In such cases you will need to divert the water as opposed to damming it. To further expand on the example given above, one way of diverting the water would be to ...

Dec. 21, 2020

By Dam-It Dams, Inc.
How inflatable cofferdams can protect against flooding in Florida

Cofferdams have been around for quite a long time. Ever since man started to build bridges or canals, dewatering solutions have been a requirement. It is extremely difficult and not to say hazardous working in water, which is why getting water out of the way is crucial to the success of any project. However, cofferdams have more uses than just for construction. For example, Florida is a state ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Marshall, MI Site 1 - Case Study

Location: Marshall, MI Cofferdam Sizes: Ten 4′ high x 150′ long at multiple sites Water Depth: 2-3′ Installation Time: Various Project Description: Clean up an oil spill caused by a pipeline rupture in a tributary of the Kalamazoo River. In recent years, oil spills and improper wastewater discharges have become a huge environmental concern. ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Moving Away From Dams for Water Storage

With California facing more drought, it’s important to consider more efficient options like aquifer recharge California, with its huge water demand, deep and frequent droughts, and a willingness to pioneer, has often been at the forefront of water management. In California’s tradition of ambitious water projects, the bold Proposition 1 has set aside $2.7 billion for water storage ...

Jun. 12, 2018

By Fluence Corporation
How portable cofferdams can be used for shoreline restoration

We have a large number of lakes and waterways in the United States, plus a lengthy coastline as well. That means a large expanse of shorelines, which in turn means a hefty need for construction in and around shoreline areas. If you commonly work in areas involving shoreline restoration, then you will want to choose the best methods of getting the job done successfully. Portable Cofferdams Can ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Bridge Repair Location: Acton, MA - Case Study

Cofferdam Size: 8′ high x 200′ long Water Depth: 6′ Installation Time: 7 hours Project Description: A Dam-It Dams cofferdam was used for dewatering the work site. The contractor needed a dry environment for extending the existing ...

Dec. 21, 2020

By Dam-It Dams, Inc.
New Orleans, LA - Case Study

Location: New Orleans, LA Cofferdam Sizes: one 10′ high x 75′ long and one 12′ high x 75′ long Water Depth: 6′ and 10′ Installation Time: 4.5 hours per dam Project Description: Dredge cement canal upstream of water cooling tower. Holding back water to allow a project to proceed is greatly facilitated by the use of portable ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Houghton Lake, MI - Case Study

Location: Houghton Lake, MI Cofferdam Size: 8′ high x 150′ long. Water Depth: 6′ Installation Time: 4.5 hours Project Description: Remove bottom sediment to deepen canal for improved boat access. The dredging process can be greatly expedited with the use of water-filled cofferdams from Dam-It Dams. By holding back water on the site, excavators ...

Dec. 21, 2020

By Dam-It Dams, Inc.
Grand Blanc, MI - Case Study

Location: Grand Blanc, MI Cofferdam Size: 8′ high x 450′ long Water Depth: 5-6′ Installation Time: 9 hours Project Description: A Dam-It Dams cofferdam was used to dewater the work site, thus allowing the contractor to locate and fix anomalies in the gasline. A dry work environment is required for the installation and/or repair of utility, ...

Dec. 21, 2020

By Dam-It Dams, Inc.

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