spring line

Prevents fore-aft movement

A spring line is a mooring rope that runs at an angle from a boat to the dock, preventing the vessel from moving forward or backward while allowing it to rise and fall with tides or waves.

Spring lines typically run from the bow aft or from the stern forward: Secure the spring lines before you leave the boat.

The term comes from the rope's function—it lets the boat "spring" or give with water movement rather than strain against a fixed point.

mooring

hawser

Thick nautical tethering rope

  • cleatShoe spike for grip
  • bollardTraffic-blocking vertical post
  • fenderProtective wheel housing

bitt · fairlead · capstan · winch · warping · docking · berth · slip · piling · wharf

arch

keystone

Arch's central locking stone

spandrel · crown · archivolt · soffit · centering · masonry · thrust · load-bearing · curvature · span

Opposites
mooring line direction/function

spring linebow line

Fixed-loop nautical knot

stern line · head line

Family

spring, line, springs, sprung, springy, springiness, springing, springer, lines

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G