Greenhouse Road filled in as extension opens to traffic in Cypress

Harris County Precinct 3 wrapped up work on a Greenhouse Road extension in December. A partnership with Caldwell Companies seeks to extend the road farther north during the next two years.

Harris County Precinct 3 wrapped up work on a Greenhouse Road extension in December. A partnership with Caldwell Companies seeks to extend the road farther north during the next two years.

As of press time Dec. 10, Harris County Precinct 3 officials overseeing construction on a Greenhouse Road extension from Alston Hills Drive to Towne Lake Greene Trail said the roadway should open to traffic Dec. 16, barring delays.


Construction on the extension project began on April 20. It was one of several smaller projects county officials have planned to help improve mobility in the Cypress area, said Randy Schilhab, manager of engineering for Precinct 3.


The road has been extended as a four-lane boulevard at the cost of roughly $5.9 million. Plans are also in the works for Greenhouse Road to be extended farther north through partnerships with Caldwell Companies, the development company behind Towne Lake, Schilhab said.


“When a private landowner develops their property, they are required to dedicate the road right of way, install the drainage system and construct two lanes of pavement for all major thoroughfares within their plat boundaries, all at no cost to Harris County,” Schilhab said.


After a one-year warranty period, Harris County takes over maintenance duties on the road and drainage. Once it becomes county responsibility, officials start monitoring traffic volumes and construct additional lanes as warranted, Schilhab said.


Under a Sept. 15 Commissioners Court agreement, Caldwell will fund the design and construction of Greenhouse Road as a two-lane half-boulevard from its existing endpoint at West Road to the future Cypress North Houston Road and eventually to a future Mound Road connection.


Precinct 3 will fund the design of a two-lane bridge on Greenhouse Road over Cypress Creek. The county is expected to finish the design phase and advertise for bids in December, Schilhab said.