(Updated at 2:40 p.m.) Repairs are complete and the ramp has reopened.

“Repairs are temporary until they find out exactly what caused the sinkhole,” said VDOT spokesperson Joan Morris. Workers think a “bad pipe” may be to blame.

Original post from 2:38 p.m. on 10/12 — The ramp from westbound Route 50 to Courthouse Road will likely be shut down throughout the rush hour due to a sinkhole that’s about the size of a tire in diameter and 4-5 feet deep.

Arlington police have blocked off the ramp with orange barrels from the adjacent VDOT utility relocation project, which already had the far left-hand lane of Route 50 shut down.

Two VDOT workers are on the scene evaluating the sinkhole. A VDOT spokesperson is checking to see how long repair work is expected to take.