Fractional Lot 3 Along Elk Creek: Meander Line, Accretion, and an Avulsion
Section 12, T4N, R68W, Sixth Principal Meridian, is bounded on the south by Elk Creek. The 1882 GLO plat shows Fractional Lot 3 as 42.30 acres, with its south boundary the meander line of the creek. The 1974 deed to your client conveys 'Fractional Lot 3, Section 12, according to the official government survey.' The creek is non-navigable under state law. Since 1882 the ordinary high-water mark has moved gradually south about 55 ft, adding land to the lot; in 1995 a flood cut a new channel across a 15-ft-wide neck, leaving the old channel dry. The current owner claims to the present creek, and a neighbor claims that the 1882 meander line is the lot line because the plat 'says so.' A 1998 survey by another firm set a pipe at the 1882 meander line. You are asked to prepare a boundary survey and to state the lot's area. The county assessor's map shows 42.30 acres.
1. What is the controlling boundary of Fractional Lot 3: the 1882 meander line, the present creek, or another line? Explain how the gradual movement and the 1995 avulsion affect it.
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The meander line is not the legal boundary merely because it appears on the GLO plat. Meander lines are run to compute the area of fractional lots; for a non-navigable stream, the patent or deed to the fractional lot ordinarily carries to the stream, subject to state law, and the water boundary is the ordinary high-water mark or thread as state law provides. The deed here conveys the fractional lot 'according to the official government survey,' not 'to the meander line,' so the water boundary controls. Gradual movement of the OHWM over decades is accretion; the riparian owner gains or loses land with the gradual shift. The 1995 avulsion is different: a sudden channel change does not move the boundary. The boundary remains at the pre-avulsion location, even though the old channel is dry and the new channel is elsewhere. The 1998 pipe at the meander line is a later monument based on the wrong premise; it is not controlling. Locate the pre-avulsion water boundary from historical evidence and show the present creek and old channel for context.
2. What field and documentary evidence would you use to separate accretion from avulsion and to locate the pre-1995 boundary?
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Search the GLO notes and plat, aerial photographs before and after 1995, USGS topographics, flood-insurance maps, old survey plats, road and bridge plans, and any prior survey notes. In the field, look for the old channel banks, levee lines, vegetation changes, tree-age and species patterns, soil stratification, sediment deposits, and fence or utility crossings that predate 1995. Interview long-time owners and the neighbor. The key is whether the channel moved progressively over many years or shifted abruptly in one flood. If progressive, apply accretion; if abrupt, hold the pre-avulsion OHWM. Survey both the old channel and the present channel, and tie them to your control. Do not simply scale from the 1882 meander line. Because the legal water boundary may be the thread of the stream rather than the OHWM, confirm the state-law rule for a non-navigable creek before setting the line.
3. What should the plat and report state about area, the 1998 pipe, and the neighbor's claim?
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Show the GLO meander line as record, the found 1998 pipe labeled as a later monument not accepted as the boundary, the pre-1995 boundary line you determine, the old channel, and the present creek. State the basis for accepting accretion or avulsion. Report the area computed from the accepted boundary, not the 42.30-acre GLO area and not the assessor's map acreage; explain that the GLO acreage is the original fractional-lot area and that accretion may have changed it. Include a note that the boundary is a surveyor's location based on evidence, not a judicial determination of title. The neighbor's claim that the meander line is the boundary should be addressed in the report as a legal position, with your evidence for rejecting it; advise the owner to consult counsel if the neighbor disputes title. Avoid certifying either party's title.