See all 3 routes on Monocacy River
Maryland | Frederick County / Central Maryland
Monocacy River
Devilbiss Bridge to Gambrill Mill at Monocacy National Battlefield
Check current paddling conditions for this Monocacy River route, including water level, recent gauge trend, weather, and route details.
Route location
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Need to know
Why this call
Conditions
Gauge history and hourly forecast
The top card is the quick read. This lower section keeps the longer gauge trend, gauge context, and hourly forecast together.
Gauge detail
Gauge history & hourly forecastDetailed view
Gauge
Recent trend
Checking preferred range.
Checking trend.
Gauge source
--Checking timestampMN DNR provides the current paddling level here, but not chart-ready recent samples.
Weather
Hourly forecast
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Next 8 hours
Short-route forecast
Checking the next several hours.
Route overview
Quick facts and what's next
Distance, difficulty, shuttle basics, and the near-term outlook before you commit to the drive.
Quick facts
Plan ahead
Upcoming outlook
These are early planning reads. Re-check live conditions before you commit to the drive.
Waiting on forecast.
Waiting on forecast.
Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
The middle section of Maryland’s official Monocacy Scenic Water Trail from Devilbiss Bridge through the historic Monocacy Battlefield corridor to Gambrill Mill. It is a moving-water day trip with public park access and a hard take-out before the downstream section.
Prepare this trip
Take the plan with you
Download the canonical route, add a calendar hold, or send a simple float plan to your group.
Put-in
Devilbiss Bridge 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
Gambrill Mill Tour Stop 4 public accessThe 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.
Plan this segment
Pulling access map tiles. Usually under 5 seconds.
Access caveats and watch for
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
- Monocacy National Battlefield road, parking, and visitor-use rules at Gambrill Mill
Route gallery
See this route on the water
Photos help show what the access looks like and what the route actually feels like on the water.
Score & sources
Why this score
See the gauge, weather, and source notes behind today's call.
Why this scoreToday's evidence strength is checking
Evidence strength mostly comes down to three things: how direct the active gauge is, how clear the range is, and how fresh the data is.
- Checking evidence-strength notes.
- Checking evidence cautions.
Data behind the scoreGauge, thresholds, and timing
These are the live readings and threshold notes behind today's score.
| Gauge site | Monocacy River at Jug Bridge near Frederick, MD |
| Gauge height | Checking |
| Discharge | Checking |
| 24h trend | Checking |
| 24h change | Checking |
| Current band | Checking |
| Rain last 24h | Checking |
| Rain last 72h | Checking |
| Air temp | Checking |
| Water temp | Checking |
| Wind | Checking |
| Gusts | Checking |
| Rain timing | Checking |
| Ideal range | Needs paddler reports |
| Known low-water floor | 1.70 ft |
| High threshold | Not calibrated yet |
| Evidence strength behind the range | Official data source |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | NPS Monocacy River Water Trail flow guidance |
| Gauge source | Checking |
| Weather source | Checking |
| Rainfall source | Checking |
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 segmentDevilbiss Bridge to Gambrill Mill, Section 2 of the Monocacy Scenic Water Trail
Frederick County names this section and its endpoints in the current trail guide.
- Direct flow guidanceAt least 215 cfs or 1.7 ft below Devilbiss; 5 ft or higher hazardous
NPS publishes the below-Devilbiss threshold and high-water warning.
- Battlefield access logisticsUse the Gambrill Mill Tour Stop 4 road and boardwalk area
NPS specifically warns that common map results near the Urbana Pike bridge can send paddlers to the wrong parking area.
- 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.
Share your trip
Keep exploring
More routes to check next
Compare another stretch on this river, or jump to nearby options before you pick a plan.
More in Maryland
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All 3Nearby routes by distance
Quick answers
Monocacy River paddling FAQ
What water level is good for paddling Monocacy River?
Paddle Today watches Monocacy River at Jug Bridge near Frederick, MD and uses 1.70 ft as the conservative low-water floor for this route. The ideal range still needs more paddler reports.
Where does this Monocacy River route start and end?
This route starts at Devilbiss Bridge public launch and ends at Gambrill Mill Tour Stop 4 public access, about Approximately 12.7 river miles, official Monocacy Scenic Water Trail Section 2 on the water.
Is this Monocacy River route good for beginners?
This is listed as an easy route, but conditions still matter. Check today's score, water level, weather, and access notes before you go.
Flag a change
See something outdated?
Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.