Nevada By Design, LLC Civil Engineering Consultants

The Centennial Hills Library is located on seven acres near the corner of Buffalo Drive and Deer Springs Way. This new 45.5 K square foot facility will add a much-needed source of educational and recreational reading material for young and old alike.

NBD worked with the architect to develop the project site by providing horizontal control, grading plans, on-site utility plans, off-site improvement plans, easement preparation, details, water network analysis, drainage study, and traffic study.

An important aspect of this project is the LEED (Leadership in Energy & Environmental Design) Gold level certification that will be requested when the project is completed. Toward that certification, Clayton Neilsen of NBD designed an Offsite and Onsite Drainage Basin as part of the storm water management system utilizing a product developed by “StormTech”.

Because of certain community restrictions, soil conditions, and the amount of rainfall that is received here in Las Vegas Valley the StormTech underground detention system will be designed to capture the 100-year event and then discharge the captured stormwater at a rate at least 25% less than design storm.

Additionally in LEED another point will be obtained through the implementation of a stormwater management plan that reduces impervious cover, promotes infiltration, and captures and treats the stormwater runoff from 90% of the average annual rainfall using acceptable Best Management Practices (BMP’s).

The BMP that is recommended will be what they call a structural control and will be a combination of the detention basin prescribed previously and a facility that removes the Total Suspended Solids (TSS’s) and the oil/grease/gasoline from the stormwater through a chamber system.

Through the use of the chamber system, as well as the StormTech detention system, the overall quality of the storm water that will be conveyed from this site will be cleaner as it enters the Las Vegas Wash.