The phrase "a length of almost" is correct and usable in written English.
It can be used when describing a measurement that is very close to a specific length but not quite there.
Example: "The river has a length of almost 100 miles, making it one of the longest in the region."
Alternatives: "a length nearing" or "a length approaching".
The jets span a length of almost one million light years.
In Paradise Lost first published in 10 books in 1667 and then in 12 books in 1674, at a length of almost 11,000 lines Milton observed but adapted a number of the Classical epic conventions that distinguish works such as Homer's The Iliad and The Odyssey and Virgil's The Aeneid.
All "The Farm" lacks is a soul: some sense of compulsion, of necessity, which is crucial to sustaining a ghost story — whose natural form is brief, concentrated, now-you-see-it-now-you-don't — at a length of almost 400 pages.
Lengthwise, including the tail, a fully grown male lion can be up to three and a half metres long, while a big female can reach a length of almost three metres.
When he read about a new species named Sauroposeidon, which was estimated to weigh about 55 tons and have a length of almost 30 meters, he contacted the author, Mathew Wedel.
The main initiations occur along the ridges on the West of the main peak, over a length of almost 3 km at altitudes ranging between 6800 and 6900 m asl (noted 3, 4, 5 in Fig. 5).
The most ancient trumpets had straight tubes barely 2 feet (60 centimetres) long, but the medieval buisine, a straight instrument retaining the trumpet's traditional association with royalty and pomp, reached a length of about 6 feet (almost 2 metres).
Quinn Hatfield dry-ages his meat for a length of time almost unthinkable in Brazil, where freshness is prized over tenderness and developed flavor, but the complex tartness of the meat here is profound.
The largest known proteins are the titins, a component of the muscle sarcomere, with a molecular mass of almost 3,000 kDa and a total length of almost 27,000 amino acids.
and a total length of almost 8,460 metres, with further 1,080 metres comprising the inner wall of the Vlanga harbour.
Some of these worms may be very large; one species may reach a length of 2.5 meters (almost eight feet), although most are much smaller.
