It's about one-five-hundred-fiftieth as long as The Mississippi River
In other words, 45,000 shaftments is 0.001821 times the length of The Mississippi River, and the length of The Mississippi River is 549.10 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 24,710,000 shaftments. Prior to the development of soil erosion programs, the Mississippi River would carry approximately 400 million metric tons of sediment from its banks to the Gulf of Mexico every year.
It's about 600 times as tall as a Telephone Pole
In other words, 45,000 shaftments is 620 times the height of a Telephone Pole, and the height of a Telephone Pole is 0.0016 times that amount.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
A standard telephone pole is 72 shaftments tall. Despite alternatives, most telephone poles in the US are made of wood — most commonly pine — and have a lifespan of 25 to 50 years, depending on climate and preservatives applied.
It's about one-six-hundred-fiftieth as long as The Distance from L.A. to New York
In other words, 45,000 shaftments is 0.00153 times the length of The Distance from L.A. to New York, and the length of The Distance from L.A. to New York is 654 times that amount.(Los Angeles, California to New York City, New York) (via I-10 E, I-15 N, I-70 E, I-76 E, I-80 E, I-280 E)
The total length of the freeway route from Los Angeles, California to New York City, New York via Interstate 80 is 29,500,000 shaftments long. This route intersects eleven states and several major cities, including Las Vegas, Nevada; Denver, Colorado; Lincoln, Nebraska; Omaha, Nebraska; Des Moines, Iowa; South Bend, Indiana; and Cleveland, Ohio.
It's about one-seven-hundredth as long as I-80
In other words, 45,000 shaftments is 0.00147865 times the length of I-80, and the length of I-80 is 676.2930 times that amount.(a.k.a. Interstate 80, a.k.a. Keystone Shortway) (net length)
Interstate 80, crosses the continent of North America from Teaneck, New Jersey to San Francisco, California and covers a total length of 30,433,300 shaftments. A 393,701 shaftments stretch between mile marker 318 in Grand Island, Nebraska and mile marker 390 in Lincoln, Nebraska is the longest straight path in the US Interstate system.
It's about 800 times as long as a London bus
In other words, 45,000 shaftments is 818 times the length of a London bus, and the length of a London bus is 0.00122 times that amount.(Routemaster Double-Decker, RM standard specification)
The Routemaster Double-Decker buses, well-known as icons of London, measure 55 shaftments in length. The buses were said to be well-designed for travel in the London traffic, as they offered an open door for riders to board and exit even while the bus was moving at low speeds, and a full-time conductor to collect fares.
It's about one-nine-hundredth as long as The Great Wall of China (wall only)
In other words, 45,000 shaftments is 0.001096 times the length of The Great Wall of China (wall only), and the length of The Great Wall of China (wall only) is 912.40 times that amount.(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (wall segments only)
The Great Wall of China has total wall segment length of 41,070,000 shaftments. Built and maintained in multiple sections over about eleven centuries, the Great Wall is currently suffering the effects of erosion, especially in the older sections made primarily out of mud.
It's about one-nine-hundred-fiftieth as long as The Amazon River
In other words, 45,000 shaftments is 0.001065 times the length of The Amazon River, and the length of The Amazon River is 939 times that amount.(from Nevado Mismi, Arequipa, Peru through near Marajó, Brazil) (approximate distance)
The Amazon River has an approximate distance of 42,240,000 shaftments. Although by most measures it is the largest and one of the most significant rivers in the world, the region surrounding the Amazon is mostly sparsely populated and the river itself has no bridges across it at any point.