C-47 Bridge Replacement Greenhouse Road at South Mayde Creek

C-47 Bridge Replacement Greenhouse Road at South Mayde Creek

Recent Action

September 24, 2019 – Harris County Commissioners Court authorized and initiated this project


The purpose of this project was to design and construct a bridge replacement for Greenhouse Road at South Mayde Creek. After study and review, the Harris County Flood Control District determined that the design and construction of Greenhouse Road bridge replacement would not proceed because other recommended alternatives could provide better benefits at a lower cost.

In 2021, the Flood Control District completed a preliminary engineering report (PER) for project U101-00-00-P003, bond project ID C-36, South Mayde Creek Channel Improvements and Bypass Channel. The PER (Preliminary Engineering Report) analyzed both the bridge replacement and bypass channel scenarios side-by-side as they each work to increase stormwater conveyance at the downstream end of South Mayde Creek as it flows into Addicks Reservoir, as well as various other scenarios. Results showed that the proposed bypass channel provides more benefit than the bridge replacement. Also, during an April 2019 meeting with the U.S. Army Corps of Engineers (USACE) to discuss the pending bypass channel project, the USACE expressed opposition to the replacement of this bridge. The Addicks Reservoir is owned and operated by the USACE.


The bridge is located on Greenhouse Road and crosses over South Mayde Creek north of Saums Road and south of Morton Road.


This project did not move forward once it was determined by the Preliminary Engineering Report that alternative solutions would provide greater benefit to the area.


None of the $1.5 million in funding assigned to Bond ID C-47 was used for this project. Bond funding of $1.5 million originally set aside for this project will be released and placed into the Flood Resilience Trust.

Bond List

List of 2018 Bond Projects

Map of C-47 Bridge Replacement Greenhouse Road

Project Lifecycle

Every flood damage reduction project is unique. Yet each project begins and ends, with common and predictable milestones along the way. Whether a project moves forward – and how quickly – depends on many factors, including the availability of funding at each milestone, shifting community priorities for flood damage reduction, and other changing circumstances (such as the price of trees or concrete) from year to year.