Grimes Engineering, PC

Grimes Engineering, PC GRIMES ENGINEERING, PC is a water resources engineering firm specializing in dams and flood modeling throughout the Carolinas. Mr.

GRIMES ENGINEERING, PC is a water resources engineering firm specializing in surface water management throughout North Carolina, South Carolina, and Virginia, with a primary focus on dams. As a leader in the field of stormwater engineering and dam design, Grimes Engineering provides expertise in the following areas:
Dam repairs and lake restoration
Emergency Action Plans (EAPs) for dams, including

downstream inundation modeling and mapping
Hydrologic and hydraulic modeling and design
Sediment and erosion control design
Drainage system design and repair
FEMA mapping and permitting:
Conditional Letter of Map Revision (CLOMR)
Letter of Map Revision (LOMR)
No-Rise Certification
Engineering reports and presentations
Construction drawings and specifications
Construction observation and certification
Expert witness credentials

John Thomas (JT) Grimes, PE is the president of the firm and has worked for more than 20 years as a private consultant for municipalities, developers, contractors, and private property owners on an extensive variety of stormwater management projects. Grimes also serves as a sub-consultant for engineering firms where his expertise complements and/or completes project design teams. As a graduate of North Carolina State University (BSCE – 1990, Master of Civil Engineering – 1992), Mr. Grimes has served as both design engineer and project manager on more than 80 projects involving dams. He is registered as a Professional Engineer in North Carolina, South Carolina, and Virginia. Grimes is a recipient of the prestigious Association of State Dam Safety Officials (ASDSO) Regional Award of Merit given annually to individuals or organizations throughout the United States making outstanding contributions to dam safety on a regional level. Grimes became the first individual in private consulting to receive the award for the Southeast region of the United States. An absolute advantage of Grimes Engineering’s services is rooted in the firm’s distinctive structure, assuring clients that the actual work on their project will be performed by Mr. Grimes and not delegated to an inexperienced staff engineer. Grimes Engineering, as a uniquely positioned and professionally accredited firm, welcomes your inquiries about stormwater engineering needs. We look forward to Designing Solutions for Your Rainy Days.

Another old dam with seepage and extremely wet foundation conditions - so wet that the contractor had to use logs just f...
08/02/2026

Another old dam with seepage and extremely wet foundation conditions - so wet that the contractor had to use logs just for equipment to access the work area... but in the end, it turned out nice.

This project had MANY challenges, but the end product of repairs / upgrades turned out really nice!Fusion welded slip-li...
08/02/2026

This project had MANY challenges, but the end product of repairs / upgrades turned out really nice!

Fusion welded slip-line pipe, divers for underwater repairs, new primary spillway intake structure, large tree / stump removal, concrete retaining wall, wet - wet - wet foundation soils, extensive seepage collection system, relocated irrigation trunk line, pump house modifications, lots of rock armoring, two emergency spillways for additional flood capacity, and to top it off - two nice tee boxes restored for golf!

Just another day at the office…☺️ and celebrating Grimes Engineering's 18 years of service today!  So grateful for all t...
08/02/2024

Just another day at the office…☺️ and celebrating Grimes Engineering's 18 years of service today! So grateful for all the intriguing projects, wonderful clients, and amazing colleagues!

Deep water drain repair project (over 85 feet) by Grimes Engineering.
03/06/2024

Deep water drain repair project (over 85 feet) by Grimes Engineering.

An old bottom drain and spillway repair project by Grimes Engineering.
03/06/2024

An old bottom drain and spillway repair project by Grimes Engineering.

If you've ever driven through Tabor City on the way to Myrtle Beach, take a look over to the right and you'll see some o...
03/06/2024

If you've ever driven through Tabor City on the way to Myrtle Beach, take a look over to the right and you'll see some of Grimes Engineering's recent work.

I always enjoyed ART class in school and now I've finally had a project where ENGINEERING and ART come together!!!  The ...
03/06/2024

I always enjoyed ART class in school and now I've finally had a project where ENGINEERING and ART come together!!! The mural is amazing!

An emergency spillway armoring project by Grimes Engineering.
03/06/2024

An emergency spillway armoring project by Grimes Engineering.

A recent High Hazard dam repair project by Grimes Engineering.
03/06/2024

A recent High Hazard dam repair project by Grimes Engineering.

Construction photos from a recent Grimes Engineering project.
03/06/2024

Construction photos from a recent Grimes Engineering project.

Address

Clemmons, NC
27012

Opening Hours

Monday 8am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm
Sunday 9am - 5pm

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