The U.S. Army Corps of Engineers, Baltimore District, is working on major repairs to the Codorus Creek Flood Risk Management component of the Indian Rock Dam/Codorus Creek Project in the vicinity of York, Pennsylvania. Baltimore District operates and maintains the dam and Codorus Creek project.
The Codorus Creek project consists of eight independent levee systems: York Northeast, York Northwest, York East Loucks Mill, York West Willis Run, York East Downtown, York West Downtown, York Southeast and York Southwest. The project is 4.8 miles in length, and includes a widened and deepened creek channel, levees, floodwalls and bank protection elements.
The incorporated area within the City of York covers a little more than 5 square miles, and lies on both banks of Codorus Creek, which flows through York and is 10 miles upstream of the confluence with the Susquehanna River. These projects work jointly to help reduce flood risks to people and property in York, Pennsylvania, as well as communities downstream.
It cost approximately $5 million to construct both the dam and levee systems in the 1940s. These projects were authorized by the Flood Control Act of 1936. It is estimated that the dam and levee systems have prevented more than $55 million in flood damages since their construction. The dam and levee systems are inspected annually and receive a more thorough investigation every five years.
The fiscal 2018 President’s Budget included $15.9 million for operation and maintenance of the aging Codorus Creek Flood Risk Management Project. The following work is underway: Replacement of the floodwall near Penn Street; repair of bulge/instability issues in the floodwall near the Market Street Bridge; additional cleaning and inspection of approximately 100 (out of 270 total) drainage conduits; repair or replacement of drainage conduits based on completed inspection results; installation of riprap (large rocks placed along the shoreline to prevent erosion) at the upstream end of the southeast levee system where the York system begins until the South Richland Ave. Bridge; and development of a comprehensive long-term maintenance plan for the system.
The team is working expeditiously to award the necessary contracts to resolve the known maintenance concerns with the Codorus Creek project. The project is estimated to take 1.5 to 2 years to complete.
- Contract awarded for the replacement of the Penn St. floodwall on March 5, 2021, for ~$3.23 million. Work timeframe is from April 2021 to April 2022.
- Contract awarded for the pipe cleaning and inspection on July 27, 2018, for ~$91,000.
- Installation/repair of rip rap was completed in January 2020.
- Bulge repair construction was completed in November 2020.