Engineering Design

The Cedar Cliff dam and hydropower project is located approximately six miles from Cullowhee, in Jackson Country, North...

In order to meet screen velocity requirements of the Clean Water Act 316 b rule, American Electric Power has investigated...

Plant McDonough, owned and operated by Southern Company, has experienced excessive siltation at the makeup water intake. ...

Alden conducted a physical model study of a self cleaning wet well for the Hartford Water Pollution Control Facility Wet...

Alden conducted several physical and computational hydraulic model studies for the Hartford Water Pollution Control...

In response to hurricane Katrina, the US Army Corps of Engineers decided to increase the frontal protection on four pump...

ALDEN conducted a comprehensive, multi-faceted flow model study of the addition of a proposed powerhouse (including three...

The existing flood control dam at Canton, Oklahoma, was being upgraded with an auxiliary spillway to enable it to safely...

McLaughlin Whitewater Design Group was developing a new course at Coweta Falls on the Lower Chattahoochee River near...

ALDEN conducted a comprehensive, multi-faceted flow model study of the addition of a proposed storm water tunnel in Austin,...

To support design upgrades to the existing Primary Settling Tanks (PSTs) of the 26th Ward Waste Water Treatment Plant...

As part of project/dam surrender and removal efforts at the Saccarappa Hydroelectric Project (Saccarappa), Alden provided S....

Starting in 2009, Alden has been working with a confidential nuclear power facility to determine the feasibility of...

A major component of an Atlantic salmon population model developed by NMFS is the survival of smolts and kelts passing...

The Electric Power Research Institute (EPRI) has funded laboratory studies at Alden on the biological efficacy of fine-mesh...

In 2012, Alden developed a report providing an updated review of the state of knowledge on fish protection technologies for...

The main objective of the study was to determine the post-collection survival of larval fish when exposed to compounding...

Location- Colorado | Client- Highland Ditch CompanyProject included the replacement of the existing 350 cfs diversion...

Alden's Modeling of the Smithland Lock and Dam powerhouse project is an example of coordinated use of Computational Fluid...

Alden designed, constructed and tested a ~1:7 Froude scale physical hydraulic model to evaluate the hydraulic performance of...

Alden’s engineers and biologists conducted extensive CFD modeling and biological evaluations to help the Holyoke Gas &...

On startup, the air quality control system (AQCS) at Deerhaven Generating Station was not able to meet its guarantees for SO...

The expanded small scale physical model(ESSPM) will be constructed from 216 5x10 ft foam panels on the LSU campus.  The...

The Littoral Combat Ship (LCS) concept boat was studied for the U.S. Navy.  The LCS is intended to operate in coastal areas...

Alden performed design studies and field startup testingof PSE’s Upper and Lower Baker Dams Floating Surface Collector (FSC)...

Alden conducted CFD and physical modeling studies to support the design of the new power plant at the Taweelah Smelter...

Alden designed, constructed , and tested two 1:20 scale physical hydraulic models of the new 2-mile long surge protection...

During periods of spill, Cabinet Gorge Dam can generate total dissolved gas (TDG) concentrations in excess of water quality...

The Mathis Dam Spillway project highlights Alden’s integrated hydraulic and structural engineering services in which there...