J.R. Evans Engineering provides professional services in the land development design & permtting, drainage studies, and regulatory compliance. Specific expertise and experience in Environmental Resource Permits, FEMA Permitting, Local Development Order Permitting, and Expert Witness Testimony in water management and utility related matters of Civil Engineering. Our professionals have extensive experience in establishing multi-disciplinary teams as necessary to include planning, surveying, landscape architecture, GIS, geological, and hydrological services as the projects warrant through existing relationships that can be tailored to match the needs of your project.

Land Development Design and Permitting

Client: The Place at Corkscrew

Project: The Place at Corkscrew, Lee County, FL
Start/End Date: June, 2016 – On-Going

Description: The project includes civil engineering, planning, surveying, and hydro-geological services necessary to design and permit a 1,361 acre project located in Lee County, along the north side of Corksrew Road just east of he Village of Estero boundary. At build-out, the project will consist of residential home-sites, amenity center and supporting infrastructure. The subject parcels were previously utilized as farm land sod and watermelon farm. Approximately 736.2 acres will be restored to a natural upland/wetland preserve. The property is bordered on the south by Corkscrew Road, on the north by mitigation/conservation lands, on the east by agriculture lands and on the west by preserve and less dense single-family development. As a requirement of the project’s zoning approval, the project must provide a plan that incorporates three defined flow-way restoration corridors traversing from north to south through the property. The purpose of the flow-way restoration corridors is to provide a means for restoring flow patterns in a north-to-south direction and to aid in relieving flooding issues for properties located to the west. To properly evaluate the proposed hydrologic and hydraulic conditions of the flow-way restoration areas and the proposed design for those areas, the following analyses were conducted:

  • Hydrologic Analysis for the Existing Conditions of the property; and
  • Hydrologic and Hydraulic Analysis for the Proposed Conditions of the Flow-way Basin Design

The integrated approach of development design, offsite flow timing and hydrology considerations, and appropriately designed drainage infrastructure created an cohesive development with ecological enhancements, water quality improvements to sensitive ecosystems, while still providing flood protection for the public. The project involves a coordinated effort with input from Lee County Natural Resources, Lee County Department of Transportation (LDOT), and South Florida Water Management District (SFWMD), all in partnerhsip with the landowner/developer to meet long term restoration and water supply goals of their respective agencies.

 

Client: The Village of Estero

Project: US 41/Cypress Bend Drainage Coordination, Village of Estero, FL
Start/End Date: May, 2016 – June, 2016

Description: Represented The Village of Estero’s interest in coordinating the verification, responsible entity, and agency enforcement of drainage issues in the vicinity of US 41/Cypress Bend trailer park. Obtained limited survey to identify location/ elevation of suspected impediments of flow to be used when coordinating resolution with responsible parties. Researched ownership and easements of areas of concern. Contacted Florida Department of Transportation, adjacent land owners, and South Florida Water Management to communicate issues and initiate resolution on behalf of The Village of Estero. Resolution of the project is still in progress.

 

Client: Lee County Natural Resources Department

Project: Bedman Creek/Dog Canal Floodway Analysis and Hydrology Study, Lee County, FL
Start/End Date: February, 2016 – On-Going

Description: The Lee County Natural Resources Department hired J.R. Evans Engineering to prepare a more current and detailed evaluation of the hydrology and hydraulic conditions of the Bedman Creek/Dog Canal waterway system. The Bedman Creek/Dog Canal system consists of a natural creek feeding the Caloosahatchee River that becomes a channelized waterway at the upstream portion. The system is located in east Lee County, near the border with Hendry County. The previous 2008 FEMA Flood Insurance Study (FIS) for the system utilized data from 2000 and limited topographic information. As a result, the 2008 FIS indicated significantly high base flood elevations for the 1%-annual-chance storm event along the waterway and a regulatory floodway area that exceeded the banks of Bedman Creek and Dog Canal. These conditions have placed constraints and limitations for many property owners located within the watershed area of the Bedman Creek/Dog Canal system. Therefore, the County proceeded with an effort to further evaluate the base flood elevations and regulatory floodway boundaries with a more detailed analysis. The analysis objective is to determine new base flood elevations and more accurate boundaries of the flood hazard areas and regulatory floodway based upon a more detailed, specific study of the tributary and contributing watershed.

In summary, the results of the new detailed analyses indicated a reduction in the contributing flows, decrease in the regulatory base flood elevations and a reduction in the width of the regulatory floodway boundary. The final step in the project is facilitating a Letter of Map Revision (LOMR) through FEMA for acceptance of the new detailed studies and revised mapping for the watershed. Once the LOMR is approved, many residents will experience the benefit of a reduction in the base flood elevations and reduction in the floodway area.

 

Client: City of Marco Island

Project: SR 92A and Fruit Farm Creek Mangrove Restoration, Collier County, FL
Start/End Date: February, 2015 – January, 2016

Description: The City of Marco Island in conjunction with the Conservancy of Southwest Florida hired J.R. Evans Engineering to better understand the hydrology of surface and groundwater flow beneath and over State Road 92A, located near Goodland Florida. State Road 92A restricts the natural surface water flow across mangrove stands on either side of the road, and influences the water flow that occurs beneath and over the road, and regularly floods. The City of Marco Island has indicated two areas of concern along this roadway. We proposed to conduct a drainage study at these two sites. One area of concern was located between the intersection of San Marco Road (SR 92) and Goodland Drive (SR 92A) where the study site consists of bay waters to the east and mangrove forest to the west, separated by Goodland Drive. The other area of concern was located in Goodland where the study site consists of bay waters/inlet to the north and south, separate by mangrove forests and Goodland Drive.

Once the site was characterized, restoration alternatives will be considered based on the hydrologic modeling and evaluated based on cost efficiency and likelihood of meeting project goals. The final design proposed 10 x 42” Reinforced Concrete Pipes in two different locations to re-establish tidal flow and flushing of the impact mangrove forest and raising the road to accommodate spring high tides.

 

Client: Winding Cypress ERP

Project: Winding Cypress ERP, Collier County, FL
Start/End Date: March, 2014 – July 2014

Description: The project included civil engineering, planning, surveying, and hydro-geological services necessary to design and permit a 1,900 acre projected located in Collier County. The residential development was strategically placed in upland islands, but surrounded by the Belle Meade-Royal Hammock slough that collected a regional flow-way system ultimately into the Rookery Bay National Estuarine Research Preserve. Special consideration was given to all aspects of water management including water quality, floodplain storage, and restoration and maintaining function of natural flow-ways. The project started with a major offsite analysis of the contributing watershed that included approximately 6,000 acres utilizing a hydrologic model to establish the timing and rate of offsite flows through the proposed project Second, combinations of HEC-RAS and Inner Connected Pond Routing Model (ICPR) were used around the development to evaluate flow-way crossings and the floodplain impact Third, the onsite residential development was modeled and designed to attenuate peak flows to not impact the floodplain storage while also providing additional water quality improvement prior to discharge. The integrated approach of development design, offsite flow timing and hydrology considerations, and appropriately designed drainage infrastructure created an cohesive development with ecological enhancements, water quality improvements to sensitive ecosystems, while still providing flood protection for the public. The regional approach taken in this project was universally accepted and praised by both regulatory agencies and environmental advocacy groups.

The permitting services include modifications to the currently approved Environmental Resource Permit, Army Corps of Engineers Dredge and Fill Permit, Development of Regional Impact Development Order (DRI), and Collier County PUD. The PUD and DRI process involved coordination with County staff and surrounding communities to obtain approval.

 

Client: David Lawrence Center

Project: David Lawrence Center Building Expansion

Description: Responsible for design, project team coordination, construction plan production, permitting and construction inspection for the expansion of the existing buildings within David Lawrence Center campus located in Collier County, FL. The project included the following improvements to the campus infrastructure: fire main loop extension, fire department and building sprinkler connections, additional hydrants, paving and striping improvements, drainage improvements, pedestrian access additions, replacement of existing sewer system and the addition of a new gravity sewer system and relocation of the existing pump station which required design, permitting, and turnover with Florida Governmental Utility Authority (FGUA).

 

Client: KMK Captial

Project: Landings at Bear's Paw

Description: Responsible for design, project team coordination, construction plan production, permitting, platting and construction inspection for this 23-unit waterfront residential development in Naples, FL. Specific services for this project included assistance in re-zoning the property to PUD through Collier County, SFWMD Environmental Resource Permitting, assistance in ACOE permitting, Collier County Plan and Plat permitting, City of Naples Utility permitting, and extensive coordination with Collier County Growth Management and Collier County Parks and Recreation on providing for access to the site (via the proposed 2,000+/- LF access road through Collier County property) and accommodating for and incorporating the design of the adjacent Gordon River Greenway Park (located on west side of project). The project is now under construction and J.R. Evans Engineering is responsible for construction inspection and certification.

 

Client: Cameratta Companies, LLC

Project: Corkscrew Shores

Description: Responsible for design, project team coordination, construction plan production, permitting, platting and construction inspection for this 722 acre development located on Corkscrew Road in Estero, FL. Project includes approximately 250 acres of surface water management lakes, 6 miles of roadway, and water, wastewater and irrigation utilities to service over 650 single-family homes along a restored rock mine operation. The project also includes the creation of approximately 32 acres of previously cleared/filled area to native upland and wetland habitat, enhancement of approximately 48 acres of existing wetlands and preservation of approximately 23 acres of upland habitat to be protected under conservation easement, in addition to the existing 159 acres of existing upland and wetland preserves within the project. Water quality pre-treatment is proposed via internal lakes and detention areas to allow for recreational use of the restored mining pit, and to generally provide enhanced water quality treatment, due to the fact that the large lake is deep and adjacent to multiple Lee County raw water wells. Special design were also created and submitted to advisory staff in order to control lake-bank erosion for the recreational lake system, which includes open water spans of over 3/4 of a mile. The project is currently under construction, although the first phase has been completed and model homes are open.

 

Client: Pulte Homes

Project: Winding Cypress ERP, PUD/DRI

Description: The project involves Civil Engineering and Planning Services in support of the design and permitting of Winding Cypress with 800 +/- units. The services include modifications to the currently approved Environmental Resource Permit, Army Corps of Engineers Dredge and Fill Permit, Development of Regional Impact Development Order (DRI), and Collier County PUD. The project involves a major modification to the previously permitted development tracts and lake configurations. The proposed water management system for the project will consist of overland flow, swales and storm sewer infrastructure which convey storm water to wet detention areas within the project. The proposed water management system is designed to provide 150% of the required water quality treatment amount. In addition, a detailed nutrient loading analysis was conducted for the project in conformance with the FDEP Evaluation of Current Stormwater Design Criteria within the State of Florida. The analysis was performed on a lake-by-lake basis to confirm the treatment provided for the post-developed project is sufficient to provide nutrient reduction (nitrogen and phosphorus) so that post-development conditions would be less than pre-developed conditions. The project included road crossings of the Belle Mead-Royal Hammock slough wetlands and upland preserves. To determine the appropriate size and design of the culverts for the road crossings, specific 100-year event flows were extracted from the 2008 Effective Flood Insurance Study Model, for the road crossing locations and were then used as input into the hydraulic models for each crossing. The overall surface water management system is designated to maximize the reduction of nutrient loadings being discharged into the slough system and to maintain hydrologic conditions within the slough system.

 

Client: The Pulte Group (Centex)

Project: The Quarry — Master Water Management System Modification

Description: Responsible for the design, project team coordination, surface water management plans, and permitting to South Florida Water Management District. The project required the complete modification of the project sub-basin boundaries to reflect a revised master plan while still accommodating offsite flow-away pass through flows from the Corkscrew Swamp. the re-analysis of the system took greater advantage of existing lake systems to lower project design stages and save approximately 350,000 cubic yards of fill. this project has been approved by South Florida Water Management District and the existing constructed infrastructure has been certified.

 
 

Project: The Quarry — Model Center

Description: Responsible for design, project team coordination, construction plan and production, permitting, and platting for approximately 900 LF of roadway design, sanitary sewer pump station connection, water, sewer, and irrigation design. This project included 4 different lot widths to accommodate 7 different model products for The Pulte Group within the Quarry. Potential buyers were able to review all the models in a single location. The site was designed to be re-platted upon completion of the community to build the open space lots used during sales.

 
 

Project: The Quarry — Parcel 3V

Description: Responsible for design, project team coordination, construction plan and production, permitting, and platting for approximately 750 LF of roadway design, sanitary sewer pump station connection, water, sewer, and irrigation design. This project included 5 multi-family 4 unit buildings with side entry garages, boat parking and boat ramp for the residents of the Quarry. This project has been constructed and certified to both Collier County and South Florida Water Management District.

 

Project: The Quarry - Phase 3

Description: Responsible for the design, project team coordination, construction plan production, permitting, platting and construction stake-out for approximately 2 miles of roadway, sanitary sewer pump station, water, sewer, and irrigation design. This addition to the 2000 acre development included 119 single family units along a restored rock mine operation. Special designs were created to control lake-bank erosion for the over 500 acre recreational lake system. Water quality treatment was performed via internal lakes and detention areas to allow recreational use of the restored mining pit. Detailed earthwork analysis for the entire community allowed for specific grading treatment to avoid previously budgeted fill import and saving the client over $1,000,000 in additional fill. Currently the project is under construction, the plat is recorded, and sales have started.

 

Project: The Quarry - Phase 4

Description: Responsible for the design, project team coordination, construction plan production, permitting, platting for approximately 1 mile of roadway design, sanitary sewer pump station, water, sewer, and irrigation design. This addition to the 2000 acre development included 43 single family units along a restored rock mine operation. Special designs were created to control lake-bank erosion for the over 500 acre recreational lake system. Water quality treatment was performed via internal lakes and detention areas to allow for recreational use of the restored mininig pit.

 

Client: The Pulte Group

Project: Oasis Club at Del Webb of Naples, Ave Maria, Florida

Description: Responsible for the engineering design and permitting for a 35 acre development including a 39,850 square foot amenity building with indoor lap pool, outdoor resort pool, pool building (Cabana), 4 tennis courts, tennis pro shop, 4 pickle ball courts, outdoor amphitheater, outdoor basketball court, 4 bocce ball courts, fire pit, a future maintenance facility, and supporting infrastructures. Services included a Collier County Site Development Plan, South Florida Water Management District Environmental Resource Permit, and Ave Maria Utility Company Construction Permits.

 

Services:

- Land Development Design and Entitlement
- Certified Floodplain Management



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