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• Installed in 1988.
• Zone 4 North Dakota DOT Corrosion Map. “RED Zone” <400 Ohms*cm the highest      corrosion zone in ND.
• No signs of corrosion,
• Mud splatter on the side walls and mud layered on the inverts.

After approximately 39 years of in-ground performance, 11 of the 13 Polymer Coated CSP crossings (14 total pipes) had a rating of 2 (fair with some wear, but structurally sound).   One of the culvert inverts could not be observed, one was a twin culvert, and one of the culverts observed had a rating of 3 due to foundation of the roadway surface unrelated to the pipe.

When comparing the current condition of the polymer coated CMP to the plain galvanized end sections used on the inlet and outlet of the pipes, it is apparent the polymer coating has helped significantly increased the service life of the galvanized culverts.  If these culverts were made of galvanized steel they would have probably already been replaced. 

Based on the overall condition of the culverts after 40-years of performance and the very good condition of the polymeric coating on the interior of the pipes, it is believed the culverts will continue to perform for many years to come. 

After learning of the heafty price tag associated with a Thermoplastic Detention System, contractors reached out to Lane Enterprises, Inc to help value-engineer a replacement system.

In 2017, Racetrac Petroleum implemented a new company concept in Douglas County, GA known as a convenience stop (otherwise known as a truck stop). This site is located on Interstate 20 which runs from South Carolina to California. The sites are larger than  the traditional gas stations so the stormwater treatment and storage is more involved.

Located in Newville, PA, a substantial warehouse development needed a new drainage system that could handle a significant amount of storm water.  The original plans for the new storm water drainage system involved using reinforced concrete pipe, at a hefty price tag.

The design of this extra special project required the engineering team at PCP to create a train tunnel designed and constructed out of CSP.

The nominated project was a replacement for a 139’ long 3-span bridge constructed in 1936. The project was designed by Big R Bridge through collaboration with the Vermont Agency of Transportation (VTRANS) and CLD Engineers (project engineer). This project is the first deep corrugated structural plate Buried Bridge project in Vermont.

The original site design for this project consisted of 40,000 ft3 of storm water storage, 20,000 ft3 above grade and 20,000 ft3 below grade built with 60” diameter HDPE and concrete manholes and inlets. The owner requested a redesign of the storm drainage to better utilize his property.

The city of Mountlake Terrace, Washington needed a new stormwater retention facility to provide stormwater treatment and downstream flood control. The facility would treat runoff from an area of about 13 acres in the city’s downtown core and protect the water quality in the Lake Ballinger watershed.

Pacific Corrugated Pipe Co. was approached for a special project for 2 residential tract projects.  Tract 17634 was a 20 Home Cul-de-sac layout design that would incorporate a 96”x20’-16 gauge retention tank for each home and also a 48” 16g x 150’ perforated system for street runoff. 

In an effort to ensure that an existing creek bank and fish habitat could be restored, engineers in Healdsburg, CA temporarily diverted Dry Creek.

East of Dallas, Texas, off of I-30, lies the community of McLendon-Chisholm & Sonoma Verde.  These new housing developments were built to “ take the rich offerings of Tuscan style & place it within reach of every resident who wants to stop planning for ‘tomorrow’ and start living their dream today.”

Upon reviewing the plans for the housing community the developer’s choose to go with a structural plate arch over traditional TXDOT concrete alternatives.

After extensive spring flooding, ice damage and severe erosion, access to the Sykeston, North Dakota City Park was extremely limited.  After assessing the situation FEMA was forced to replace the existing structure with a new 15’ diameter structural plate pipe.

On January 7^th of 2015, PCP was approached by Lockheed Martin for some information regarding their culvert capabilities and the potential to start a new, very exciting project.  After multiple phone calls and emails a product design was approved that would allow the transport of robotic submarines through the Antarctic Ice Shelf!

This was a very unique project indeed!  Engineers reached out to PCP to help with the design of a residential 2 car parking solution that needed to meet a multitude of requirements.  The first requirement was that it had to utilized a small and complex space that was being added to the cabin.  Next, it had to be an architectural match to the surrounding mountain aesthetics.  And finally the garage structure would have to have an outlet or manhole access from the top to allow the owner to leave the cabin or garage without direct interaction to the winter elements.

A new $250 million distribution center code named “Project Jasper” was revealed by Forest Park, Georgia city officials. This expansive distribution center was slated to be built on about 300 acres of land – roughly one-million square feet and anticipated an extremely high volume of stormwater runoff.

In an effort to create the largest possible interior holding space, Pacific Corrugated Pipe was tasked with the massive challenge of creating the largest possible diameter pipe while maintaining a 20’ length. Due to the limitations on the opening of their stationary mill, PCP had to enlist the use of their mobile mill.

Hyalite Engineers needed assistance in finding a cost effective alternative to a concrete box culvert crossing for the Rock Creek Golf Club located near Coeur D’Alene, ID.  Hyalite Engineers reached out to TrueNorth Steel to help them ensure that the golfers were able to safely cross Loffs Bay Road.

The American Center for Mobility (ACM), recently built a U.S.-based connected and automated vehicle (CAV) research facility in Ypsilanti, Michigan, the heart of the automotive industry. The Center is a proving ground for CAV product testing, development, validation, and certification. The 500-acre site includes a driverless 2.5-mile highway loop, two double overpasses, a railroad crossing, intersections, roundabouts, and a 704-foot long curved tunnel.

Located on Interstate 20 twenty miles east of Dallas, Talty is ideally suited to those seeking large residential lots within easy commuting distance to the urban center, and as such, the city is constantly assessing road conditions in order to incorporate new improvements and ongoing city road projects and expansions.

On this particular bridge replacement, Guthrie County was replacing a 22’ long x 16’ wide timber bridge that had no record of installation date. The Guthrie county engineer considered three replacement options based on the size of the drainage area and required hydraulics at the site. Option 1 was a Single 6’ x 7’ reinforced concrete box; Option 2 was a single 84” corrugated metal pipe; and Option 3 was a twin run of 60” corrugated metal pipes. When the cost analysis was completed, the single run of 84” CMP was the clear winner.

A research project on the durability of Aluminized Steel Type 2 pipe installed in the metro Atlanta area has resulted in an outstanding report of the product’s performance. The study focused on the performance of pipes in storm sewer applications, so the majority of the pipes are connecting two catch basin structures.

Original plans for a new Chrysler Dealership in Pineville, NC included a modular reinforced concrete storm water detention system – but at a hefty price. After a value engineering process, it was decided to go with an aluminized steel pipe combination storm water management system, saving the owner over $300,000!

This bridge allowed passage over Fish Creek. The updated design required a 5 gauge, 22’x 20′ vertical ellipse, galvanized multi-plate for the main channel with a length of 150′.

On either side of the vertical ellipse a round 14′ diameter, 7 gauge, galvanized multi-plate overflow structure completed the design. Each overflow structure was 140’in length.

A 6” minimum benign envelope around the pipe using pea gravel was incorporated to abate the poor resistivity readings that periodically occurred at this site.

This job consisted of 6300 LF of CSP and 3200 LF of spiral rib pipe including several large tees, elbows, & misc. fittings.

With over 14,680 LF (sections varying from 4,594 LF of 15-in diameter to 5,162 LF in 42-in diameter and 263 LF in 60-in), the mobile mill offered the perfect flexibility for the variety of pipe diameters needed to complete the job.

These pipes are set vertically into a concrete base and sealed with silicone or a spray sealant. They are then covered with a solid vented lid and plumbed for use.

Corrugated steel water tanks are designed to be an aesthetically pleasing and cost effective solution used for  rain water harvesting.

The deteriorating culvert had experienced major encroachment along the toe of the slope after a major rain event and catastrophic washouts.

The North Dakota Department of Transportation had a problem with joint separation and spalling concrete in a 10’ x 8’ cast-in-place Reinforced concrete box culvert built in 1934, and extended in 1960.

Constructed in 2011, this is the longest single span box culvert of any material in North America. This was also the first large span steel buried bridge to take advantage of its flexible nature in the foundation design.

This half-round CSP structure, with its own footing plates, was designed by Pacific Corrugated Pipe Co. for bridging small streams on a temporary basis. The installation was along the Smith River access road near Elkton, RO and completed under the auspices of Oregon Department of Fish and Wildlife to ensure compliance with environmental regulations.

To provide ample drainage along the bottom of  a ravine, 863-foot long 96″diameter structural steel plate was installed as part of the $23.4 million Coalfields Expressway corridor improvement project.

NCSPA member Southeast Culvert worked with engineers to re-design the project to pre-treat the detentions using multiple 144″ CMP filters.

Contech Engineered Solutions worked closely with the design-build team to design and manufacture a storm drainage system beneath the new interchange

In 1994, BNSF Railway usedOver 26,000 ft of Aluminized Type 2 (ALT2) spiral rib pipe and  helically corrugated culvert pipe to build there intermodal facility in Roanoke, Texas

The Minnesota Department of Transportation (MnDOT) designed a 144-inch by 180 feet of 10 gauge,  Aluminized Type 2, CSP as the replacement.

An 80-foot run of 8 gauge, polymer-coated, arched pipe with a 137-inch span and a 87-inch rise was installed at Southwestern Illinois College

The University of West Georgia has installed a  three-tank system using 96-inch Aluminized Type 2 CSP.

Originally constructed in 1906, the relining design engineer of this project specified two 22-ft long, 19′-0″ x 5′-9½” structural plate arches.

Located near Philadelphia, a combination system irrigation/detention system with of 1,584 feet of fully perforated, 96-in diameter, aluminized corrugated steel pipe (CSP) epitomizes Green Infrastructure.

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Corrugated steel pipe, supplied by True North Steel, was used by The North Dakota Department of Transportation to extend the structural plate pipe at the U.S. /Canadian border crossing station

NCSPA member Big R Bridge provided the galvanized steel for a flexible buried bridge with galvanized steel welded wire headwalls to conform to site constraints and aesthetic requirements. 

The University System of Georgia installs recycled corrugated steel pipe to harvest rainwater to help reach their sustainability goals.

Undergoing redevelopment, a corrugated steel piping system was implemented to solve a unique storm sever treatment issue.

Corrugated steel pipe was used to help restore this aging stone bridge in an Eastern Pennsylvania community