Main Content Document - Section 257.677a friendly link NOTE Some documents may be very large and may take some time to completely render and download. You may wish to scroll to the bottom of an Html document to verify that it has completely downloaded before printing. Pdf downloads will begin after clicking on the Pdf icon and unless there is an error message, the Pdf is downloading normally. Document Html Version Pdf Version Section 257.677a Obstruction of safety vision by removal or deposit of snow, ice, or slush prohibited. 2 KB 6 KB Download Time for 56K Modem 0.3 seconds 1.0 seconds Download Time for Broadband 0.0 seconds 0.1 seconds