You are here

Ebb and Flow Header

Just as trees’ inner rings tell the story of their growth, their roots can reveal how quickly the earth is washing away around them. It’s critical information for addressing watershed problems.

Freese and Nichols’ Bryan Dick, left, and Ian Jewell, right, not only adapted a method for reading exposed tree roots to measure rates of riverbank erosion, but our team is using the technique for a growing list of clients.

Since...

Subscribe to our Blogs

Tagsroot dendrogeomorphology, Dendrogeomorphology, Oklahoma, Erosion, streambank, pollution,

We are pleased to welcome our new Stormwater hires, Ed Dickson and Jim Keith, who will bolster our ability to support a variety of municipalities, water districts and complex projects.

Ed, who is based in our new Charlotte office, is a water resources and stormwater engineer and nationally recognized for his floodplain mapping work. His specialization is in watershed-based H&H analysis, mapping and reviews for Federal Emergency Management Agency (FEMA) flood studies...

Subscribe to our Blogs

TagsStormwater, dallas, north carolina, FEMA, HEC-RAS, HEC-HMS,

We’re proud to be presenting at the TFMA Fall Technical Summit. We look forward to connecting with you.

Title: Hands-On HEC-RAS 2D (For Intermediate 1D Users) Time : 8 a.m. – 5 p.m. Tuesday, Aug. 28 Presenters: Garrett Johnston, PE, CFM, GISP, Freese and Nichols; Boris Minot, PE, CFM, Freese and Nichols What: This hands-on workshop will provide an overview of the new two-dimensional flow modeling capabilities of HEC-RAS 5. Class...

Subscribe to our Blogs

TagsTFMA, Stormwater, HEC-RAS, dam safety, Hurricane harvey,

See our presentations below at the ERWI LID Conference and StormCon. We hope to see you there.

Title : Rodney Cook, Sr. Park – How Atlanta is Using Partnerships, Low Impact Development, and Park Design Techniques to Rejuvenate a Community Conference: EWRI LID Conference, Nashville, TN Freese and Nichols Presenter: Kim Patak, P.E. Co-Presenters: City of Atlanta, HDR When : 8:30-10 a.m. Aug. 14 Summary : Modeled after the recent successes...

Subscribe to our Blogs

TagsLID, EWRI, Austin, public private partnership, P3, wastershed protection department,

Please join me in welcoming Jim Keith as our new Stormwater manager in Dallas.

Jim brings a wealth of technical leadership skills and in-depth expertise in water resources planning and design projects.

A well-respected leader with almost two decades of technical and managerial experience, Jim has national-level proficiency in Federal Emergency Management Agency (FEMA) programs, which will bolster our ability to support a variety of North Texas municipalities and water districts....

Subscribe to our Blogs

TagsStormwater, dallas, FEMA,

A typical detention pond design will include an overflow weir for safely passing high inflows downstream. In many cases, an engineer will design the weir using a one-dimensional (1D) hydraulic model with “textbook” weir coefficients.

These commonly-accepted values are based on lab tests and measurements, and are limited by certain assumptions (for example, flow is assumed to be uniformly distributed across the weir). The following case study illustrates how 3D modeling software can...

Subscribe to our Blogs

Tags3D modeling, Stormwater, HEC-RAS, detention pond,

Freese and Nichols is partnering with NCTCOG to offer a one-day, hands-on workshop on the two-dimensional (2D) modeling capabilities within HEC-RAS. The class will take place on October 3, 2018 at the NCTCOG offices in Arlington, TX. Participants will receive 7.5 hours of professional development credit while learning the basics of 2D modeling, including mesh generation, running a 2D model, breach modeling, and RAS mapper.

Registration is $100 and includes a catered lunch. We...

Subscribe to our Blogs

The USACE has released a new version of HEC-RAS that repairs several issues that are present in version 5.0.4 including fixes for 2D manning’s n regions, RAS Mapper stored maps, lateral structure centerlines, lateral structure connections, user defined rating curves inside a SA/ 2D hydraulic connection, advanced time step control, and others. For a comprehensive list of all the repairs that were completed, see the “Problems Repaired” section of the release notes ....

Subscribe to our Blogs

Pages