Statewide Transportation Enhancement Program

Statewide Transportation Enhancement Project Examples
Category 11: Environmental mitigation to address water pollution due to highway runoff and to reduce vehicle-caused wildlife mortality while maintaining habitat connectivity.
  • Wetlands restoration.
  • Detention and sedimentation ponds.
  • Construction of wildlife underpasses or overpasses.

Example Project #1

Project Name: Plum St/19th St Water Mitigation Project

Location: City of Paris

Project Description: This project's funding provided for the construction of a storm water sedimentation and pollution mitigation basin adjacent to 19th Street N.W. and Plum Street in the City of Paris. The project included the acquisition of 3.3 acres of land to provide the area with a storm water filtration system, while also creating an inner city green space and wildlife habitat.

District or Division: Paris District

Federal Funds: $171,200

(click on a photo to see an enlarged version)

Project covers more than 3 acres of land This highway water runoff mitigation project covers more than 3 acres of land within the city limits of Paris.
Drainage channels direct water Drainage channels direct water into retention areas for filtration.
Native plants and sedimentation areas Native plants and sedimentation areas are introduced to filter runoff and provide green-space for the city.
New wildlife habitat Creating new wildlife habitat is also provided by this project.

Example Project #2

Project Name: Beltway 8 Project - Water Quality Enhancement Through Wetlands Creation Location: City of Houston

Project Description: The project consists of retrofitting the existing storm water collection system for a portion of Beltway 8 in the City of Houston to capture and pass tainted highway water runoff through a system of wetlands. Wetlands were created on a portion of a 1,450-acre tract of land owned by the Harris County Flood Control District.

District or Division: Houston District

Federal Funds: $1,632,000

(click on a photo to see an enlarged version)

Graphics show an overview and cross-section of the wetlands filtration system Graphics show an overview and cross-section of the wetlands filtration system that is located on a portion of a 1,450-acre tract owned by the Harris Co. Flood Control District.
The Union Pacific Railroad corridor runs along adjacent to the project The northern Beltway 8 boundary can be seen in the distance, while the Union Pacific Railroad corridor runs along adjacent to the project in the foreground.
Ornamental and flowering species of wetland plants Ornamental and flowering species of wetland plants with high purification functions were chosen to aesthetically enhance the project's appearance.
The site's topography was recontoured to create a series of swales and islands The site's topography was recontoured to create a series of swales and islands to allow for maximum diversity in wildlife habitats and to allow for the planting of hardwood trees.

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