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  1. 7: Vegetation Management

Integrated Roadside Vegetation Management Program <br> IA

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Many of Iowa's 99 counties employ a roadside manager. These individuals are responsible for controlling erosion, weeds, and brush along hundreds of miles of county road. Van Buren County’s roadside manager, Wayne Thornsberry, is shown in a TA-funded native planting. <br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
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Many of Iowa's 99 counties employ a roadside manager. These individuals are responsible for controlling erosion, weeds, and brush along hundreds of miles of county road. Van Buren County’s roadside manager, Wayne Thornsberry, is shown in a TA-funded native planting.

Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.

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  • Ben Hoskinson inspects a planting along a road in south-central Iowa. Showy Tick Trefoil (foreground) and Yellow Coneflower are among the flowers blooming. Ben manages the roadsides in Mahaska County, which uses TA-funded native seed in its rights-of-way.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Many of Iowa's 99 counties employ a roadside manager. These individuals are responsible for controlling erosion, weeds, and brush along hundreds of miles of county road. Van Buren County’s roadside manager, Wayne Thornsberry, is shown in a TA-funded native planting. <br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Ox-eye Sunflower appears in many of Iowa's TA-funded roadway plantings. It blooms in early summer. <br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Wild Bergmot, a native mint, dominates this mid-summer planting along a rural Audubon County road. This western Iowa county has received TA-funded seed for right-of-way plantings each year since 1998.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Though the vast majority of Iowa's native prairie is long gone, many Iowans are familiar with Yellow Coneflower, a native wildflower. That's because this summer bloomer is a common sight along roadsides planted to prairie.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • These cheerful yellow flowers are a familiar site along Iowa roadways recently planted to native seed. Quick to establish, Black-eyed Susan becomes less dominant as more permanent species mature.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Native roadsides provide important habitat for butterflies, bees and other pollinators, especially in agricultural states where row crops have replaced most natural areas. Rough blazingstar, shown, is a butterfly magnet.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • By late fall, native grasses are the most visible component of roadside plantings. Big bluestem is among the species shown in this western Iowa planting.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Purple prairie clover appears in the foreground of this roadside image taken in Jones County. This eastern Iowa county plants TA-funded native seed in its rights-of way.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Seed mixes purchased with federal TA funds are diverse, containing 20-40 native species. In Iowa, this is a sustainable alternative to the non-native, cool-season grass typically found on county rights-of-way.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Butterfly milkweed is an important food source for Monarch caterpillars, and its bright orange flowers are popular with passing motorists.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Each spring, county roadside managers travel to the IRVM Program Office to pick up TA-funded, native seed for planting in rights-of-way. The Program Office purchases the seed from local producers.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • In agricultural areas, eroded soil from adjacent cropland can accumulate in roadside ditches. Counties remove this soil regularly to prevent further loss of sediment to waterways. These ditch "clean-outs" are re-seeded to TA-funded native vegetation, which helps reduce runoff.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Much of Iowa's TA-funded native seed is used to vegetate areas along road construction projects. The seed is often applied with a hydroseeder: an effective way to vegetate rights-of-way where steep slopes, obstructions, and wet soil prevent the use of other equipment. <br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
  • Harold Pollmeier, Henry County Roadside Manager, is pictured in a TA-funded planting beside one of the tallgrass prairie's most conspicuous plants. Compass Plant can reach heights of 10 ft. and it topped with yellow flowers in mid- to late-summer.<br />
<br />
Iowa's Integrated Roadside Vegetation Management (IRVM) Program Office has been awarded FHWA funding to purchase native prairie seed for use in county rights-of-way since 1998. Approximately 1000 roadside acres have been planted each year. These plantings are well-adapted for use on roadsides, providing weed and erosion control, storm water management, and habitat corridors. The IRVM Program Office is located at the University of Northern Iowa’s Tallgrass Prairie Center.
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The National Transportation Alternatives Clearinghouse provides information on the Transportation Alternatives Program funded by FHWA. To be eligible for TA funds, a project must relate to surface transportation and be one of the 10 TA Activities. For more information about the TA program see trade.railstotrails.org. For our licensing policy see our guidelines.


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