Principal Engineering, Inc.

01/01/2026

12/02/2025

Project Spotlight: Causeway/Central Sewer Upgrades - Mandeville

For years, the Causeway/Central intersection in Mandeville was known for one thing: the smell.

The issue came from the former sewer pump station at that location, which received flow from multiple upstream force mains across the city.

Principal Engineering worked with the City of Mandeville to eliminate the pump station entirely and replace it with a manifold system. We developed a detailed pressure-pipe model to determine how to upgrade several upstream pump stations so that flow could bypass the old site and go directly to the Mandeville Wastewater Treatment Plant.

With the aged sewer no longer collecting at this intersection, the long-standing odor problem was resolved.

We appreciate the City of Mandeville for trusting us with this important improvement for their residents and visitors.

11/26/2025

It’s the week of Thanksgiving, which means two things in Louisiana: the weather can’t make up its mind, and everyone’s trying to wrap up projects before the turkey hits the table.

Our team is still out in the field and behind the drawings today, keeping work moving for the communities we serve. Grateful for the people we work with and the work we get to do.

11/19/2025

Field Notes: Bucktown Marsh Overlook

Engineering isn’t always concrete and culverts. Sometimes it’s building a place where people can breathe again.

Bucktown Marsh Overlook blends structural work with coastal restoration - turning a shoreline into a space for families, fishermen, and sunset-chasers.

Engineering can be beautiful.

11/17/2025

We’ve spent years designing the roads you drive, the utility systems that bring you clean water, the plants that treat the waste, the pump stations that keep you dry, the drainage systems you never think about, and the coastal projects that protect the place we call home.

We just… never posted about it.
And if it’s not Facebook official - did it really happen?

Starting today, that changes.

Welcome to the new Principal Engineering - a team of Louisiana engineers who love this work, love this community, and are finally ready to show you what we’ve been building all along.

08/07/2025

Principal Engineering is seeking an experienced administrative assistant with A/E RFQ/SOQ preparation experience. This is an opportunity to join our growing firm If you have 5+ years in SOQ opportunity searching + SOQ preparation experience send us your resume. We are expanding and in need of your talent. Send us your resume to [email protected]. Candidates with A/E SOQ preparation experience only.

08/07/2025

We are hiring. Civil Engineers; Mechanical or Construction Engineering Technology graduates and CAD graduates. Come join a team that offers training and an opportunity to grow along with us. Fast growth for the right candidates. Send resume to [email protected]. Great salary and benefits.

01/01/2024

Happy New Year from The Principal Team!!!

09/11/2023

Lest we forget!!!