Three Oaks Engineering
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 🌍 🌳
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/
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
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!
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!
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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Contact the business
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 |