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Nampa Library Stormwater Management

Introduction Challenge Solution Installation Results Gallery The Nilex Advantage

Rainstore provides stormwater management while increasing land space.

The new Nampa Public Library is a 62,000 square foot facility with three floors. The building will provide visitors with ample space for reading, community events, and private study.


Nampa, Idaho



Project Partners

Contractor: Warner Construction
Completion Date: March 2015


There was very limited space for the library’s parking structure in which stormwater could be stored and managed. The client required a stormwater management solution to be installed underground without affecting sewer pipes that would need to pass around the system.


Nilex recommended Rainstore3, a modular and stackable structure used to store stormwater underground. It is made from injection molded plastic with a single panel containing 36 vertical columns that are 94% open for water storage.


The installation was quickly completed by a crew of five over the course of five days. After excavating three different beds adjacent to the structure, a front-end loader was used to place the Rainstore3 cells into the holes. The units come pre-assmbled in depths from 4 inches to 7.5 feet. Built-in compression fittings allow the units to be easily stacked to a variety of depths. Once the system was placed, the sides were filled and compacted. The sewer pipes passed over top of the Rainstore3 system.


The Rainstore3 system provided the client with the underground stormwater detention system they required which will increase land space for the parking lot. In addition, the ease of install and little excavation helped the client realize time and cost savings.


The Nilex Advantage

Nilex is committed to unearthing better results. Whether it’s for a civil, resource or environmental project, we offer the latest engineered and technically superior materials and techniques to save our customers time and money, and minimize the need to move or remove earth, and reduce the need for granular materials.

With over 35 years experience, a long-standing commitment to the environment and highly qualified staff, Nilex delivers the products and technologies that give clients an economic advantage with environmental benefit.

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