The phrase "at river level" is correct and usable in written English.
It can be used to describe a specific elevation or position in relation to the height of a river, often in contexts related to geography, construction, or environmental studies.
Example: "The new park will be designed to provide access to the water, with pathways that run at river level."
Alternatives: "at the height of the river" or "at the river's elevation".
She lives at least half a mile from the River Eden, but at river level.
The Chicago Water Taxi's LaSalle/Clark Street stop lets passengers off at Fulton's on the River, a seafood and steak house, and across Clark is the Flatwater Restaurant, a pleasant place for lunch, also at river level.
Alternatively, at river level, there's the grand Quinta do Crasto (one-night stays only, from €140 a night, +351 934 920 024), with four rooms above the winery.
The lower level has a guest suite with an enclosed porch, a kitchen, a bathroom and a private entrance at river level.
Flatwater (321 North Clark Street; 312-644-0283; www.flatwater.us) is at river level and serves a brunch that includes crab cakes Benedict ($14) or dinner entrees starting at $24.
Their keels are higher than the AstroTurf in the Superdome, and if somehow the ships could turn and move at river level into the city and into the stadium they would hover above the playing field like blimps.
Plant officials say the facility is designed to remain secure at a river level of up to 1,014 feet above sea level.
It is situated at the junction of confluence of the River Chew and River Avon and was subject to serious flooding before the creation of Chew Valley Lake and river level controls at Keynsham Lock in 1727.
The EA has recorded the river level at Iffley Lock on the Thames is 0.85 metres.
Cosmogenic 26Al/10Be dates bedload material deposited when caves were at or very near river level, and can date material as old as ∼5 Ma.
Because these are more easily eroded than the rock layers that lie above and below them, the Colorado Plateau gradually slopes down to river level at Lee's Ferry through a series of flat benchlands.
