Project Details

New River Channelization

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Project Contact: Scott Vogel
Region: NW
District: 4 - Clint L. Hickman
Description:

The earliest flood control projects along the New River were part of the Phoenix, Arizona and Vicinity (Including New River) plan (IGA FCD77001, Public Law 91-611 also known as the 221 Agreement) by the U.S. Army Corps of Engineers (USACE) which was authorized by the Flood Control Act of 1965. This plan recommended construction of a channel from New River Dam to the Agua Fria River and several small levees along New River from Skunk Creek to the confluence with the Agua Fria River. Channelization of the New River, between Grand Avenue and Olive Avenue, was completed by the USACE in 1989. The District acted as lead agency for design and construction of channelization from Olive Avenue to Bethany Home Road. These portions of the New River are operated and maintained by the District. The New River Dam was also included in the plan and involved the construction of an earthfill embankment, an ungated outlet, a saddle dike, and a detached spillway located on the left abutment of the dam. The dam was completed by the USACE in 1985, and is also operated and maintained by the District.

Additional improvements to New River from Grand Avenue to Greenway Road were built in the mid-1990s to mitigate the impacts of encroaching development. Improvements to the channel to accommodate the standard project flood were constructed including a drop structure downstream of the New River and Skunk Creek confluence. This New River Improvements project was intended to be completed in two phases, phase I being the area from Greenway Road to just south of Thunderbird Road and phase II being the area just south of Thunderbird Road to Grand Avenue. The second phase of construction was not undertaken under this project; the segment was envisioned by the City of Peoria as a future golf course site, which never materialized. In accordance with the IGA, the District was responsible for operation and maintenance of the improvement project. (IGA FCD92013, IGA FCD94002) This responsibility was later delegated, in large part, to the City of Peoria. (IGA FCD2004A004)

The transverse dikes constructed in the northern reaches of the Agua Fria River link to New River channelization through the Camelback Ranch Levees project. The District constructed a levee along the east bank of the Agua Fria River from the northernmost transverse dike to Camelback Road in 1998. The District constructed the second phase of the Agua Fria River/New River east bank levee, from Camelback Road to Bethany Home Road, in conjunction with a north/west bank levee on the New River requested by the City of Glendale for the protection of its airport and wastewater treatment plant. The City of Glendale funded the full cost of the north/west bank levee and additional channelization required; the District funded the full cost of the east bank levee. Glendale’s funding under the agreement was provided by a federal grant. (IGA FCD97008, IGA FCD98031)

Completed in coordination with the cities of Glendale and Peoria, the District’s Middle New River Watercourse Master Study indicated a need for additional improvements to portions of New River. To accommodate existing and future drainage and flooding needs, improvements including a grade control structure, bank stabilization and channel improvements were recommended near the 83rd Avenue Bridge over New River. This project was implemented in coordination with the City of Glendale’s 83rd Avenue Bridge Crossing project and provides 100-year flood protection. The City of Glendale was the project lead and in accordance with the IGAs, the cities of Glendale and Peoria and the District were cost share partners. The City of Glendale is responsible for the operation and maintenance of the project. (IGA FCD2001A007, IGA FCD2001A017)

Also recommended in the Middle New River Watercourse Master Study were additional improvements to New River from Grand Avenue to Skunk Creek, including along the Paradise Shores subdivision. Grand Avenue to Skunk Creek provides protection to Standard Project Flood levels, and the Paradise Shores subdivision area provides 100-year protection. This project consisted of channelization and bank protection of New River from Grand Avenue to Skunk Creek, excluding the Thunderbird Road Bridge (summarized below) as well as channel and bank protection south of Bell Road along the Paradise Shores subdivision. This included initial improvements to the segment between Grand Avenue and Thunderbird Road, as well as additional work on segments previously-improved upstream of Thunderbird Road. In accordance with the IGA, the District was the construction lead and also a cost share partner with the City of Peoria. Per the IGA, the City of Peoria is responsible for the operation and maintenance of the project, but the District can perform certain maintenance duties at Peoria’s cost. Per the IGA, the City of Peoria is required to maintain the aesthetic, park, and public use features of the project including maintenance of landscaping, irrigation, multi-use trails and berms, removal of trash and debris, electricity and other operation costs for the facilities, aesthetics maintenance and vandalism repair. (IGA FCD2002A010, IGA FCD2004A004)

Improvements to the Thunderbird Road and Bridge were the final New River improvements to be implemented. Completed in coordination with the City of Peoria, the project included removals for and construction of vertical channel walls, channel excavation and fill, bank erosion protection and maintenance/pedestrian trails. The City of Peoria was the construction lead and in accordance with the IGA, was also a cost share partner with the District. The operation and maintenance responsibilities for the project are identical to the responsibilities associated with remainder of the Grand Avenue to Skunk Creek project. (IGA FCD2007A006)

Status:

The project is complete.

Available Documents

Document Name Type Size
Grand Ave. to Skunk Creek Aerial 1 PDF 487 KB
Grand Ave. to Skunk Creek Aerial 2 PDF 585 KB


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