(a) A general-law municipality may annex:
(1) a reservoir owned by the municipality and used to supply water to the municipality;
(2) any land contiguous to the reservoir and subject to an easement for flood control purposes in favor of the municipality; and
(3) the right-of-way of any public road or highway connecting the reservoir to the municipality by the most direct route.
(b) The municipality may annex the area if:
(1) none of the area is more than five miles from the municipality's boundaries;
(2) none of the area is in another municipality's extraterritorial jurisdiction; and
(3) the area, excluding road or highway right-of-way, is less than 600 acres.
(c) A municipality may annex the area described by this section without the consent of any owners or residents of the area under the procedures prescribed by Subchapter C-1 if there are no owners other than the municipality or residents of the area.
(d) The municipality may annex the area even if part of the area is outside the municipality's extraterritorial jurisdiction or is narrower than the minimum width prescribed by Section 43.054. Section 43.055, which relates to the amount of area a municipality may annex in a calendar year, does not apply to the annexation.