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Maryland | Frederick County / Central Maryland
Monocacy RiverMaryland Route 77 / Rocky Ridge to Devilbiss Bridge
The upstream section of Maryland’s official Monocacy Scenic Water Trail from the Route 77/Rocky Ridge launch to Devilbiss Bridge. The non-tidal river carries a variable downstream current through shallow, rocky water and changing bank conditions.
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Route location
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Need to know
Why this call
Safety
Route safety
CautionThis route has hazards or access considerations that require extra verification.
Safety details
The NPS guide says the Jug Bridge gauge should read at least 1.7 ft for Devilbiss and below, while 5 ft or higher is hazardous for recreational use. Treat the minimum as a planning screen, not a guarantee.
- Wear a fitted PFD and use a boat suited to shallow rocky water. Cold water, changing current, strainers, slippery banks, and recent rain override a favorable gauge reading.
- Stay within the named public launch and take-out corridors. Do not use private banks, farm lanes, or informal roadside pull-offs for scouting, landing, or emergencies without permission.
Keep Monocacy River handy
Save this route in PaddleToday and check its conditions before your next paddle.
Route overview
Trip details
Access rules, camping, seasonal conditions and trip length.
Distance, difficulty, rules and camping
Plan ahead
Tomorrow and the weekend
Forecasts can change. Check current conditions again before leaving.
Waiting on forecast.
Waiting on forecast.
Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
The upstream section of Maryland’s official Monocacy Scenic Water Trail from the Route 77/Rocky Ridge launch to Devilbiss Bridge. The non-tidal river carries a variable downstream current through shallow, rocky water and changing bank conditions.
Access map
Put-in
Maryland Route 77 / Rocky Ridge public launchThe county map and NPS guide describe a mix of paved ramps, gravel beaches, carries, and unimproved access; confirm the current launch surface, parking, hours, and waterline before unloading.
Take-out
Devilbiss Bridge public launchThe route is divided into official sections, but the river can be run shorter with intermediate public sites. A missed take-out can create a long, unsafe extension, so carry a map and leave daylight margin.
Road shuttle
Access notes and hazards
Access caveats
- The county map and NPS guide describe a mix of paved ramps, gravel beaches, carries, and unimproved access; confirm the current launch surface, parking, hours, and waterline before unloading.
- The route is divided into official sections, but the river can be run shorter with intermediate public sites. A missed take-out can create a long, unsafe extension, so carry a map and leave daylight margin.
Watch for
- USGS 01643000 stage and trend
- recent rain, fast rise, cold water, shallow rock, floating wood, strainers, bridge hydraulics, and hunting activity
- muddy or slippery launch areas, park hours, parking capacity, and a hard take-out at the named endpoint
Plan this paddle
Choose your trip times
No account needed. Check the selected access points above, then choose both dates and times. For an overnight paddle, set take-out to the following date.
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Download GPX Route geometry only; no schedule required.
Conditions
Water levels, gauge history, and hourly forecast
Check the forecast and local water levels before launching.
USGS measurements
More about this gauge
These measurements come from the gauge station. Water depth and current can differ along your trip.
River camera · USGS
View at the gauge
Monocacy River at Jug Bridge near Frederick, MD. This view may be outside your paddling reach. Images are periodic and do not establish safe conditions.
Gauge detail
Water-level history and forecastDetailed view
Gauge note
No published water-level range for this trip · Monocacy River at Jug Bridge near Frederick, MD
Does this gauge apply to my trip?
Monocacy River at Jug Bridge near Frederick, MD does not establish suitable water levels for this trip. Check the access and hazard notes and ask locally about current conditions.
New to reading stage or flow? Read the paddler's gauge guide.
Gauge
Recent trend
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Gauge source
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Hourly forecast
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Next 8 hours
Short-route forecast
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Route gallery
Photos
Check each caption: some photos show the surrounding area rather than this exact trip.
Sources
Data and sources
Read the access and hazard notes and check the linked guides. We do not issue a daily score for this trip.
NotesWhat to know before you go
These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.
- Official route segmentRocky Ridge to Devilbiss Bridge, Section 1 of a 41.8-mile water trail
Frederick County publishes the three-section Monocacy Scenic Water Trail and names this endpoint pair.
- Direct flow guidanceAt least 350 cfs or 2.1 ft at MD 77; 5 ft or higher hazardous
NPS transcribes the launch-site guidance and warns of low-water and high-water consequences.
- Public accessRoute 77/Rocky Ridge and Devilbiss Bridge launch corridors
NPS describes the launch conditions and the west-side location of the Devilbiss access.
- Live gaugeUSGS 01643000, Monocacy River at Jug Bridge near Frederick, MD
This is a direct same-river station. Readings are provisional and must be combined with trend and visual conditions.
- Approved route imageryRights-cleared public-agency or public-domain corridor image
NPS-published Monocacy River paddling photograph used as corridor context; it does not certify current water, access, or hazard conditions.
Verify it yourselfCheck the source links
Use these links to double-check the gauge, route details, and access notes before you head out.
Paddler reports
Recent notes from paddlers
A few quick notes from people who were on this route recently.
Reports
Paddler reports
See recent photos and notes from people on the route.
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Keep exploring
More routes to check next
Compare another stretch on this river, or explore different rivers within 75 straight-line miles.
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Quick answers
Monocacy River paddling FAQ
What water level is best for the Maryland Route 77 / Rocky Ridge to Devilbiss Bridge route on the Monocacy River?
This planning route has no live Paddle Today score. Review the linked water-level sources, current access notices and route-specific hazards before travel.
Where does the Maryland Route 77 / Rocky Ridge to Devilbiss Bridge route on the Monocacy River start and end?
This route starts at Maryland Route 77 / Rocky Ridge public launch and ends at Devilbiss Bridge public launch, Approximately 11.5 river miles, official Monocacy Scenic Water Trail Section 1 on the water.
Is the Maryland Route 77 / Rocky Ridge to Devilbiss Bridge route on the Monocacy River suitable for beginners?
This is listed as a easy route. Review the difficulty notes, hazards and current access conditions against your group's skills. No live score assesses this trip.
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