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November 2019
Shakey Lakes Dam Reline
Shakey Lakes Dam Reline - Menominee, Michigan
Smooth Cor Relines Pipes in Dam Structure

Shakey Lakes Park, known for its great fishing and gorgeous views around the lakes, needed to reline and/or replace the drawdown pipe and six large culvert pipes that comprise the Shakey Lakes Dam structure. Originally installed in 1963, these culverts were experiencing significant corrosion and had outperformed their intended service life. As the best solution, the pipes were relined with Smooth Cor™ CSP for its ability to provide an economical and performance alternative to concrete. 

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Building Bridges
Piestewa Peak Trailhead
Piestewa Peak Trailhead
Phoenix, Arizona
Steadfast Provides Safe Access for Vehicles and Pedestrians

During an improvement project in the Phoenix Mountains, a Capstone®-style Steadfast® Vehicular Truss Bridge was selected for its ability to provide both vehicles and pedestrians with access to the new parking lots and the trailhead.

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Ridge Road at Johnson Drain
Ridge Road at Johnson Drain
Northville Township, Michigan
CON/SPAN Arch-Box Replaces Deficient Bridge

As part of an initiative from the Michigan International Technology Corridor Redevelopment Authority to promote job growth and local business development in the area, a deficient bridge on Ridge Road closed since May 2017 was replaced with a CON/SPAN® Arch-Box Bridge System. 

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Allianz Field – Minnesota United FC
Saint Paul, Minnesota
DuroMaxx, CDS Hydrodynamic Separators, and StormFilter Capture and Treat Stormwater Runoff

During construction of the new soccer stadium at Allianz Field, home to Minnesota United, stormwater was captured in two DuroMaxx Rainwater Harvesting (RWH) Cisterns and pretreated with two CDS hydrodynamic separators as well as a Peak Diversion StormFilter system with two CDS systems. 

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Pipe Solutions Blog
Flow Rate Considerations that May Surprise You
  Flow Rate Considerations that May Surprise You

First thing’s first, let’s talk about some basic hydraulics. Most shorter length culverts are inlet controlled and just about all storm sewers are outlet controlled. So for storm sewers, the flow is limited by the outlet conditions of the pipe and the roughness inside the pipe matters. The primary method to determine the flow rate (Q) of a storm sewer is to use Manning’s equation. "n"=roughness coefficient.


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Stormwater Blog
  Common Sizing Methodologies for Hydrodynamic Separators Part 1: Point on a Curve
Proper sizing of hydrodynamic separators (HDS) should start by checking local regulations. In many cases, local or state regulations will dictate how to size a HDS unit and even provide a list of what products are approved for use.  If there are no regulatory requirements, the engineer must identify which pollutant(s) need to be removed and their target removal percentage. 
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Bridge Innovations Webinar - Earn a PDH Credit
Prefabricated Land Bridge and Wildlife Crossings Solutions
Earn a PDH credit by tuning in on Tuesday, December 17 at either 11:00 AM EST or 2:00 PM EST. Join industry leader, Ted Zoli, P.E., HNTB’s national chief bridge engineer, and Contech’s leading experts as we explore prefabricated land bridge and wildlife crossings solutions. Learning objectives include: understanding the benefits of buried bridges for land bridges and wildlife crossings, examining the considerations that go into feasibility, planning and design of land bridges and wildlife crossings and reviewing case studies of land bridge and wildlife crossing projects.
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Wildcat Creek Bridge (US 12)
Contech Receives "Top Bridge Award" from Roads & Bridges Magazine
Contech's Wildcat Creek Bridge project in Rimrock, Washington was recognized in the November 2019 issue of Roads & Bridges magazine with a "Top Bridge Award." The BEBO® Bridge Concrete Arch System replaced an 82 year old structure on U.S. Highway 12 in the Cascade Mountains. Read more about the project on pages 36-38.
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Introduction to Designing and Sizing Hydrodynamic Separators
For decades, hydrodynamic separators (HDS) have been used as a primary treatment device for stormwater. While these systems have been in use for many years, sizing and designing an HDS system can be challenging and confusing. Performance targets, sizing methodologies, confusing performance calculations from manufacturers, online vs. offline placement, and other factors must be considered for proper design and functionality of an HDS system.
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