Andrew Tilton, P.E.
Andy is the Director of the Water Resources market group. He has been with Johnson Engineering since 1978 and is a shareholder of the company. Andy is currently providing quality control on the projects under design and permitting for the design of the SCFE Railroad extension and Helms Road Extension. Andy is District Engineer for Telegraph Cypress Water Management District. The District covers about 28 square miles in Charlotte and Lee Counties and the Babcock Ranch Community Independent Special District. He also assists with the engineering for several Community Development Districts in Lee and Collier Counties. Andy has served as the senior engineer for surface water on many of the firm’s roadway projects for Hendry County, Lee County Department of Transportation, City of Cape Coral, City of Fort Myers, Collier County and the Florida Department of Transportation. He provides direction for monitoring, permitting, design and construction related issues. Andy is very active in the conceptual phase of the larger projects. He transitions the work to other water resource team members as the project is designed and permitted. Andy is currently working on three mixed used developments, which range in size from 300 acres to about 18,000 acres and are located in Charlotte, Hendry, Glades and Lee Counties. Each project has watershed level issues to determine related to backwater profiles for setting site elevations and flood analysis, setting control elevations, measuring flows for calibration and working with the groundwater and environmental considerations of each site.
Archie Grant, P.E., P.S.M.
Archie began his career at Johnson Engineering in 1967 as the company’s President. His leadership propelled the company forward for twelve successful years. He brings significant unrivaled comprehension of water management to our clients. Archie’s historical knowledge of Southwest Florida landscape is unsurpassed. Archie has made both aerial and field reconnaissance missions during some of Southwest Florida’s most historic floods. In the 1970′s Archie worked directly with Fred Babcock to organize and secure governmental approval of the Telegraph Cypress Water Management District. He served as the first District Engineer and designed the original Water Management System for what is now known as Babcock Ranch. He’s served on the Governor’s Lake Okeechobee Technical Advisory Council, which he chaired in 1988, the South Florida Water Management District’s Caloosahatchee Advisory Committee, the Lower West Coast Water Supply Plan Advisory Committee, and the Lee County Regional Water Supply Authority.
David Robson, P.E.
David joined the Water Resources section of Johnson Engineering in April of 2005. He works with clients on general engineering projects, NPDES permitting and compliance, and asset management for CDD’s located throughout Lee and Collier Counties.
David has past experience working with irrigation, drainage, project management, and facilities management for a horticultural operations company with five U.S. facilities and a South American production facility. He also served on agricultural community committees for the Southwest Florida Restudy and Florida Department of Agriculture and Consumer Services Best Management Practices development, and continuing membership in the agricultural engineering societies SE-303 committee.
Patricia Bell, P.E.
Patricia first joined Johnson Engineering in April 200 with a bachelor’s degree in civil engineering. As a project manager for the surface water department Patricia is responsible for the administration, design and permitting for various projects. Patricia’s responsibilities include water management system design, stormwater treatment calculations, numeric nutrient criteria calculations, stormwater modeling, overseeing design plans for conformance with permitting agencies and good engineering practices, and submitting for agency permits including; SFWMD, SWFWMD, ACOE, FDEP, local municipalities and drainage districts. Having served as a project manager for various development, roadway and drainage projects, Patricia is very experienced in the design and permitting of surface water management systems.
Ricardo Acosta, P.E.
Rick joined Johnson Engineering in February of 2006 and worked on several development projects. Rick has now developed his capabilities as a stormwater engineer on the surface water management team. He has designed and permitted surface water management systems for an assorted type of projects through SFWMD and SWFWMD, including transportation (roadways, bridges and railroads), environmental restoration, commercial, industrial and residential. He has served as project manager on various projects, including the Stormwater Improvements to the Basin III of the City of Naples, the construction of the Powell Creek Preserve Filter Marsh in Lee County and the expansion of the South Central Florida Express Railroad system in Hendry County.
Rick has performed numerous analyses according to the FEMA’s Guidance to determine the impacts of Proposed Developments in Regulatory Floodways for a variety of projects. He has worked on projects that are relatively simple to those that are relatively complex with acceptance by the local review agency.
