Maryland Portal Home
Click here for Accessible Site Navigation
Business Center
Projects & Studies
Commuter & Travel
Safety Programs
Environment & Community
Info Center
State Highway Administration

Land Use Change

Land Use Change BMPs improve water quality by converting land into a more natural environment.

Impervious Area Removal

Impervious area removal identifies existing impervious surfaces that can be removed and replaced with vegetative cover such as grass and trees. Existing impervious areas that could potentially be removed include abandoned roadways, concrete ditches and raised concrete medians. Removing impervious surfaces decreases stormwater runoff by allowing rainwater to infiltrate into the ground that removes pollutants, recharges groundwater and reduces the pollution entering local streams.


Tree Planting

Plantings Trees converts pervious grassy vegetated areas into forested areas. Reforestation is an economical and sustainable way to increase the uptake of pollutants (nitrogen and phosphorous) and reduce the flow of sediment from stormwater runoff. Types of species planted include a mix of deciduous and evergreen trees native to the Chesapeake Bay region. Trees can reduce the intensity of stormwater runoff by intercepting rainfall in their canopy and bark, as well as directly absorbing water through their roots. Tree roots and leaf litter can also improve soil conditions for infiltration and convert pollutants into less harmful substances. Planting trees along rivers and streams has added water quality benefits. Creating or expanding forested stream buffers is an effective strategy because trees decrease the concentration of nutrients that flow directly into a stream from the land through absorption, and they slow soil erosion and sediment runoff by stabilizing the stream bank by the tree roots.
Tree planting site on I-695 in Baltimore County
Tree planting site on I-695 in Baltimore County
 Print Decrease Text SizeReset Text SizeIncrease Text Size


Maryland produces several brochures, websites and other materials, all of which are free to download and access information to help spread the word about highway safety programs in Maryland.
Maryland Safe Routes to School
Maryland Safe Routes to School
horizontal line

You may also be interested in...

Safety - Bicycle Safety Thi...
SHA''s Vests for Visibility...
The Three Es of Highway Safety
Motorcycle Safety
Younger Driver Safety
More >> 
Maryland Department of Transportation


707 North Calvert Street Baltimore, Maryland 21202