Standard height of deck handrail?
34" is the standard.
There are 2 standard heights for exterior railings, 36" and 42". The height required in your area will depend on local building codes.
From the 2003 International Residential Code: 311.5.6 Handrails. Handrails shall be provided on at least one side of each continuous run of treads or flight with four or more risers. - Maximum riser height allowed by code is 7 3/4" and you would need to have 3 or less risers to omit a handrail. The answer would be 23 1/4" max.
To comply with the Americans with Disabilities Act, certain requirements must be met in order for an area to be considered to be considered acceptable in terms of accessibility for people with disabilities. The required height for a handrail on a set of stairs is that the top of the handrail must be between 34 and 38 inches above the stair nosing.
There is no "standard" height of steps. Check your local building codes for minimums and maximums. Here in western Canada, the rise, or height of an individual stair, can vary from 125 to 200 mm (5" to 8"). Your codes will also regulate such things as run (the horizontal size of the step), minimum stair width, head height over the stairs, distance between landings, handrail requirements, and so on.
It depends on the 371 your talking about the 57-58 371 is a raised deck height from the 54-56 324 engine. Then in 1959 they raised the deck height again so the 59-64 engines use the same deck height, which means the 59-60 371 engines being the last 371's share the same deck height as the 394 engines. Hope this helps you out.
The Sidu River Bridge in the province of Hubei lays claim to being the tallest in the world based on the height of its deck. The deck height is 1,627 feet, but its towers are not structurally taller than other bridges. A bridge that fits both the structural height as well as deck height is the Millau Viaduct. Its deck is 890 feet and the tallest of its towers are 1,125 feet.