Fairview Park Wetlands and Reparian Habitat Project, County of Orange
Customer/Owner Name: U.S. Army Corps of Engineers
Point of Contact: Caryl DeVaney, Construction Control Representative
Description: CJW provided demolition, clearing and grubbing, grading and installed an irrigation system for the Riparian Area along 20 acres throughout the Fairview Park Wetlands area. The irrigation system beginning at the 6-inch reclaimed water point of connection, including main and lateral piping with associated valves, components and fittings, sprinkler heads, automatic controllers, strainers, master control valves, gate valves, valve boxes and markers, remote control valves, strainers or filters, pins and stakes for piping, and electrical wiring from controllers to remote control valves.
The design for this project was partially provided to CJW. However, due to some major design deficiencies, CJW coordinated with the Owner to redesign the entire project, using our in-house resources, including the channels, irrigation and plant placement and layout. The original plans specified that three (3) dead-end segments of irrigation run throughout the park, leaving many of the native trees, plants and shrubs without proper irrigation. CJW redesigned the irrigation system, replacing it with a loop system which would be more cost effective and efficient and would provide adequate irrigation to all native vegetation. This reduced the overall cost of the irrigation system and provided a much higher quality product than the Owner originally requested, at no cost or time delay to the project. The irrigation system was installed with a satellite operated remote controller. All electrical conduit and wiring was provided by CJW. CJW also provided temporary construction fencing, electrical work for the irrigation system (including power-zone/switch box by Pond E, to Controllers A and B, plus stub up and pull wire up for future Controller C, power to existing pump stations and tie-ins to the ten-inch main line). This project required CJW to provide paving of 7,000 feet of two-feet wide channel maintenance paths along an artificial river, excavation of the channels and of Pond E to include dewatering, removing, hauling and stockpiling of excess soil, grading, and compacting, CJW also provided rock lining and geo-textile treatments throughout the channels, four (4) concrete weirs, and the installation of thousands of feet of six (6) and eight (8) inch PVC piping.
CJW was required to provide extensive landscape restoration throughout the Riparian Area, a 17.7 acre area, including obtaining plant materials and seed, soil preparation and testing, flagging and installation of plant materials and seed mixes, hydro-seeding, hydro-mulching or broadcast seeding operations of over 30,000 native trees, shrubs and plants. Upon award, CJW grew off-site all the plants, trees and shrubs needed to make the project successful. By controlling the vegetation, we were able to mitigate any project delays, controlling the product, the budget and the time. CJW is currently in the one (1) year maintenance phase of this project, ensuring that all of the landscaping and hydro-seeding for the native trees, shrubs and plants which were placed throughout the wetlands are without disturbance. This often requires weeds to be removed by hand.
This project required particular attention to environmental concerns. CJW installed and repaired the security fence surrounding Least Tern Island, which kept all predators away from the endangered species. The foundations for this fencing were constructed in salt water. CJW provided an in-house certified biologist to guarantee all project species were indigenous to the area.
Outstanding CCASS Evaluation from Owner
Completion Date: 01/20/2011
Award Amount: $1,907,705