What is a riparian buffer?
Generally, a riparian buffer is a strip of trees or other vegetation kept along a stream or shoreline. The Chesapeake Bay Act's buffers do not apply in Carroll, Grayson, Wythe, Pulaski, Montgomery or Floyd counties or Galax. Here the term points instead to a voluntary DCR cost-share buffer, at least 35 feet wide and unmowed, trees kept along a stream at harvest, or a local rule the county confirms.
The same two words in a cost-share contract, a harvest plan and an article online
Suppose the phrase riparian buffer is in front of you right now. It might be a line in a DCR agricultural cost-share contract, a term in a timber harvest plan, or a paragraph in an article about Virginia's Chesapeake Bay rules. The words are identical. The obligations are not, and the first job is working out which document you are holding.
| Where you read it | What it is | Who answers |
|---|---|---|
| An article built on the Chesapeake Bay Preservation Act | A buffer tied to the Bay Act's preservation areas, which the Act directs Tidewater Virginia localities to set up | Not these counties; the next section explains why |
| A DCR agricultural cost-share contract | A voluntary riparian forest buffer practice with a minimum width and no mowing or grazing in it | DCR, for eligibility and current terms |
| A timber harvest plan | A streamside management zone, where all or part of the trees are kept along a stream while the timber around it is cut | The Virginia Department of Forestry |
| A county letter, plat note or permit condition | Whatever that county's ordinance or approval says | The county planning office |
The one-sentence definition, with the two agency terms side by side, is on the riparian buffer glossary entry. This page is about telling them apart on a real parcel, because each one reaches different ground and binds for a different reason.
Tidewater's named list leaves out every locality in this footprint
Much of what is written about riparian buffers in Virginia describes the Chesapeake Bay Preservation Act, and that Act does not reach Carroll, Grayson, Wythe, Pulaski, Montgomery or Floyd counties or the City of Galax.
the counties, cities, and towns of Tidewater Virginia establish programs, in accordance with criteria established by the Commonwealth, that define and protect certain lands, hereinafter called Chesapeake Bay Preservation Areas
Va. Code 62.1-44.15:67
Tidewater Virginia is not a loose description in the Act. Va. Code 62.1-44.15:68 defines it as a named list of counties and cities, and none of these seven localities is on it. A Chesapeake Bay Preservation Area is an area a local government delineates under the state criteria, so the Act gives these localities no preservation area to draw and no Bay Act buffer to attach to one.
That is worth knowing when an article, a buyer's question or a form mentions a Bay Act buffer on land here. The Act is the wrong source for a tract in these mountains. The contract, the harvest plan or the county is the right one.
Trees kept along a stream at harvest, and the local rule only the county can confirm
The Virginia Department of Forestry separates two kinds of streamside forest, and only one of them belongs to a timber sale: a streamside management zone, where trees are kept along a stream while the timber around it is cut.
DOF uses riparian forest buffer for the other case, new or expanded wooded strips on open land. It gives one reason for both in plain terms: streamside forests shade the stream and keep its water cooler and more suitable for aquatic life.
On timberland with a stream through it, how wide a zone to leave standing at harvest is the Department of Forestry's to state. No width is printed here, because the figures that circulate online are not ones this page can source. How standing timber is priced is covered in how timber is valued.
Wet ground beside a stream brings in its own set of permits, covered in wetlands and what they limit. Drawing water from the creek for stock or crops is a separate matter again, set out in springs, creeks and water rights.
Creek-side pasture or woods under a buffer contract?
Send the county, the acreage and what the contract or harvest plan covers. Lowell will look over the ground on both sides of the strip, and the contract terms stay with the agency that wrote them. No cost, no obligation.
Got it. Thank you.
We'll be in touch shortly with an honest read.
Questions this raises
Will the cost-share program pay for a buffer the county already requires?
Not for the required minimum. DCR's 2024 riparian forest buffer specification says the minimum buffer required by the Chesapeake Bay Preservation Act or another local ordinance is not to receive cost-share. The Bay Act does not reach Carroll, Grayson, Wythe, Pulaski, Montgomery or Floyd counties or Galax, so the live question there is whether a local ordinance sets a buffer; the county planning office confirms that, and DCR confirms eligibility.
How wide does a riparian buffer have to be?
It depends on which buffer. DCR's cost-share practice requires a wooded buffer at least 35 feet from the edge of the stream bank and not more than 100 feet. For a streamside management zone in a timber harvest, the Department of Forestry answers the width. The Chesapeake Bay Act's buffers do not apply in Carroll, Grayson, Wythe, Pulaski, Montgomery or Floyd counties or Galax, and any local width is the county's to confirm.
Can a Chesapeake Bay Preservation Area be mapped on land in Carroll or Grayson County?
The Chesapeake Bay Preservation Act directs the counties, cities and towns of Tidewater Virginia to set up programs that define and protect those areas, and a preservation area is one a local government delineates under the state criteria. Tidewater Virginia is a named list in the Act, and Carroll, Grayson, Wythe, Pulaski, Montgomery, Floyd and Galax are not on it.
Where this page's facts come from
Every rule, office and figure above traces to one of these. Rules change; check the office before you act on one.
- Va. Code 62.1-44.15:67, Chesapeake Bay Preservation Act findings and purpose Code of Virginia
- Va. Code 62.1-44.15:68, definitions including Tidewater Virginia Code of Virginia
- Agricultural BMP specification, riparian forest buffer, 2024 Virginia Department of Conservation and Recreation
- Benefits of streamside forests Virginia Department of Forestry