Real-time open/closed reports, winter weather updates, webcams, and Appalachian mountain gap status across Sideling Hill, Martin Mountain, Polish Mountain, and Big Savage Mountain. Verified live via MDOT CHART 511.
Open 24/7. 4-lane divided US-15 highway is clear with full traffic flow and routine MDOT SHA snow treatment.
Open 24/7. Historic 4-lane water gap gorge clear with active rockfall barrier monitoring and full MDOT service.
Open 24/7. 2-lane historic National Pike mountain pass clear. Routine winter brine treatment; Appalachian Trail crossing clear.
Open 24/7. Famous 340-foot deep interstate rock cut on I-68. 4-lane freeway clear with active runaway truck ramps and speed signs.
| Pass / Gap Name | Highway Route | Elevation | Live Status | Road Condition Summary | Governing Agency |
|---|---|---|---|---|---|
| Catoctin Mountain Gap | US Highway 15 | 1,620 ft (494 m) | Open 24/7 | 4-lane divided US-15 clear | MDOT CHART 511 |
| Cumberland Narrows | Alternate US-40 & MD-36 | 940 ft (287 m) | Open 24/7 | 4-lane historic water gap clear | MDOT SHA District 6 |
| South Mountain Gap | Alternate US-40 (National Pike) | 1,350 ft (411 m) | Open 24/7 | 2-lane historic pass clear | MDOT SHA & MD Parks |
| Sideling Hill | Interstate 68 / US-40 Cut | 1,690 ft / 1,340 ft | Open 24/7 | 4-lane interstate rock cut clear | MDOT CHART 511 |
Every road condition and mountain gap status listed on LivePassWatch Maryland is cross-verified live against official state department feeds from the Maryland Department of Transportation Coordinated Highway Action Response Team (MDOT CHART 511).
Catoctin Mountain Gap (elevation 1,620 ft / 494 m) on US Highway 15 in Frederick County, MD is OPEN 24/7/365. Verified live via MDOT CHART 511. Road conditions are clear with full 4-lane divided highway traffic flow and routine winter maintenance.
Cumberland Narrows (elevation 940 ft / 287 m) on Alternate US-40 and MD-36 in Cumberland, MD is OPEN 24/7/365. Sourced live from MDOT CHART 511. The historic 4-lane water gap is clear with active rockfall barrier monitoring.
South Mountain Gap (Turner's Gap / Crampton's Gap, elevation 1,350 ft / 411 m) on Alternate US-40 (National Pike) is OPEN 24/7/365. Sourced live from MDOT SHA. Road is clear with routine winter brine treatments.
Sideling Hill (elevation 1,690 ft summit / 1,340 ft rock cut) on Interstate 68 in Washington/Allegany County, MD is OPEN 24/7/365. Verified live via MDOT CHART 511. The 4-lane interstate cut is clear with active runaway truck ramps.
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