Three Oaks Engineering

Three Oaks Engineering

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Engineering and planning for a sustainable future

Services

• Transportation Planning
o Highway
o Rail
o Transit
o Bike/Pedestrian
• NEPA Document Preparation (CEs, EAs, EISs)
• Traffic Engineering
• Aquatic surveys (freshwater mussel surveys, freshwater fish surveys, benthic macroinvertebrate sampling, water quality monitoring, essential fish habitat)
• Natural resource investigations (threatened & endangered species

07/31/2025

Our amphibian team recently had the opportunity to survey for the long-tailed salamander (Eurycea longicauda), a member of the lungless salamander family. We were fortunate to get some great photos of this infrequently encountered species in its natural habitat. The tail of the long-tailed salamander accounts for about 60% of its body length! 📷: David Cooper

04/26/2025

Our Durham staff celebrated Earth Day belated by volunteering with this afternoon. We helped remove invasive plants from Wrightwood Park 🌍 🌳

03/19/2025
04/28/2024

We thought it was important to dispel some misperceptions about small businesses and our future plans, so we made this little video to tell our story.

You can learn about employee ownership trusts here: https://www.nceo.org/article/introduction-employee-ownership-trusts

And, we have open positions posted here: https://threeoaksengineering.com/careers/

Photos from Three Oaks Engineering's post 04/07/2024

We had a great time at our annual outing to the Durham Bulls! We even got to meet the bestest boy, Ripken the Bat Dog, and give him one of our Three Oaks dog toys!

03/31/2024

One of our furthest

Transit Job Listing - Senior Environmental Planner (Transit) 03/08/2024

Transit Job Listing - Senior Environmental Planner (Transit) * Our transit practice provides environmental and transit planning support for our clients’ transformative public transit, active transportation, and multimodal transportation projects.

03/08/2024

Happy International Women's Day, especially to the fantastic women of Three Oaks!

Photos from Three Oaks Engineering's post 02/01/2024

As part of our celebration of Black History Month, we put together these lists of local, Black-owned businesses for staff in our three office locations--Durham (NC), Raleigh (NC), and Columbia (SC). We’re sure we missed some and would love to know if there are more in your area. Drop us a comment of some of your favorites so we can check them out too!

Photos from Three Oaks Engineering's post 01/13/2024

Today, we celebrate 10 years of business! What started out over lunch at Guglhupf has expanded into a family of almost 50 in two states and three offices. We are grateful for the support of our amazing Three Oaks team and the clients and partnering firms who took a chance on us. We look forward to the new year, new projects, and new growth. Happy birthday, Three Oaks!

12/21/2023

Happy howl-idays from the pets of Three Oaks! Our paw-ject managers run a tight ship, but they loosened up this week to spread holiday cheer to our offices.

12/19/2022

Happy holidays and best wishes for the new year from the pets of Three Oaks (and their humans)!

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Telephone

Address


324 Blackwell Street Ste 1200
Durham, NC
27701

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm