The Spring Creek watershed, in far northwest Harris County and the southern area of Montgomery County and extending as well into Waller and Grimes counties, includes nearly half of the City of Tomball and [much of?] The Woodlands\I-45 area. Development, already heavy, is expected to continue as these communities and others in the watershed expand.
Bayou Land Conservancy, a nonprofit land trust, has partnered with landowners along Spring Creek to form the Spring Creek Greenway, the longest contiguous, urban, forested greenway in the country. Now close to 80% complete, the Greenway will ultimately be 33 miles long and will cover more than 12,000 acres. Bayou Land Conservancy itself holds conservation easements on over 2,300 acres of the Spring Creek watershed and protects nearly eight miles of stream frontage from degradation in perpetuity.
The level of environmental sensitivity in the watershed is very high, since its undeveloped portions contain high-quality forested wetlands that flank the creek and provide water filtration and storm water buffers. These portions of the watershed are extremely susceptible to damage caused by runoff from neighboring developments, as well as increased timber harvesting and sand and gravel mining.
There are numerous county parks along the main channel of Spring Creek in the lower reaches of the watershed. Notably, the watershed also includes portions the recharge zone for the Chicot aquifer system, an important groundwater source for southeastern Harris County and Galveston County.