What does vertical clearance mean?

Vertical clearance means the minimum vertical distance between the sidewalk and the lowest point of a banner. Sample 1. Vertical clearance means an unobstructed vertical passage space required along a highway or a sidewalk within a highway; Sample 1.

What is bridge clearance height?

• The federal government recommends that bridges on public roads have a clearance of at least 14 feet. This ensures that trucks shorter than the maximum truck height — 13 feet, 6 inches in most states — can pass underneath them safely.

What are bridge heights?

Per the California Vehicle Code (CVC), no loads shall exceed a height of 14 feet. The CVC Height Section is 35250, and is copied below: No vehicle or load shall exceed a height of 14 feet measured from the surface upon which the vehicle stands, except that a double-deck bus may not exceed a height of 14 feet, 3 inches.

What does height clearance mean?

clearance height . ‘, in relation to a sign, means the vertical distance between the lowest edge of a sign and the natural level of the surrounding land, walkway or roadway immediately underneath such a sign; Sample 1.

What is vertical clearance of bridge?

Vertical clearance is the critical height under a structure that will accommodate vehicular and rail traffic based on its design characteristics. This height is the least height available from the lower roadway surface (including usable shoulders) or the plane of the top of the rails to the bottom of the bridge.

What is clearance in bridge?

Clearance of bridge span is generally measured from the water surface (or ground, if there is no water) to the undersurface of the bridge. Enough clearance should be considered in the bridge design to ensure the traffic safety under the bridge.

What is bridge clearance?

The bridge clearance (BC) refers to the height from the waterline (where the surface meets the hull) to the highest point of any structure on the boat, including the mast, tuna tower, or outriggers.

How much is vertical clearance?

Vertical clearance: The minimum vertical clearance under overhead structures, such as bridges, is 16 feet (4.9 m), including both paved shoulders and an allowance for extra layers of pavement.

What does bridge clearance mean?

The bridge clearance (BC) refers to the height from the waterline (where the surface meets the hull) to the highest point of any structure on the boat, including the mast, tuna tower, or outriggers. (If your radio antennas and riggers fold down, you don’t have to measure them in the equation.)

Are bridge heights accurate?

And, while water levels change and navigable channels widen and narrow, bridge heights don’t. It’s up to the pilot to make adjustments to his calculations and safety margins according to that day’s river conditions.

How is the clearance height of a bridge measured?

As we have seen clearance heights are measured from Highest Astronomical Tide (HAT) level, which is the highest the tide will ever reach. The charted height of the bridge (Fig 2.12) is a measurement of the distance from underneath the bridge to the Highest Astronomical Tide level.

What is meant by vertical clearance?

Vertical clearance is the minimum vertical clearance under overhead structures (including over the paved shoulders).

What is headroom or vertical clearance?

Headroom or vertical clearance is the difference between the highest point on the roadway to the lowest point of the structural element of the bridge above the passage. For deck bridges the headroom or vertical clearance is unlimited but for through bridges and underpasses the headroom is an important design factor.

What is a clearance gauge?

Clearance Gauges: A series of markings painted on or attached to bridge piers to indicate the vertical clearance available beneath the navigation span between “low steel” and various water levels. They may also be authorized electronic displays serving the same purpose.