• Level Legend
  • Low
  • Running
  • High
  • Unknown
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Anacostia, Northwest Branch [MD]
US Rte 29 (Burnt Mills) to Riggs Road (Adelphi Mill)
I-IV(V+) 7cfs
+0cfs/hr
L0-
Below Recom.

00h52m
Antietam Creek [MD]
1) Upper: Oak Ridge Dr. to Hwy.68 (Devils Backbone Park)
I-II 2.36ft
+0.00ft/hr
L0-
Below Recom.

01h22m
Antietam Creek [MD]
2) Hwy 68 to Hwy 34
I-II 2.36ft
+0.00ft/hr
L4-
Below Recom.

01h22m
Antietam Creek [MD]
3) Hwy.34 to Potomac River
I-II 2.36ft
+0.00ft/hr
L4-
Below Recom.

01h22m
Bear Creek [MD]
U.S. 219 to Youghiogheny River at Friendsville
IV 34cfs
+0cfs/hr
L0-
Below Recom.

01h07m
Beaver Creek [MD]
Beaver Creek Park N Ride (I-70) to Alternate Rt. 40
I(II) 2.36ft
+0.00ft/hr
L0-
Below Recom.

01h22m
Bennett Creek [MD]
MD Route 355 to Monocacy River
I-II 28cfs
+0cfs/hr
L0-
Below Recom.

00h52m
Big Elk Creek [MD]
PA Route 341 to Elkton
I-II 57cfs
+3cfs/hr
L9-
Below Recom.

00h52m
Broad Creek [MD]
MD Route 136 to MD Route 623
I-II 65cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Cabin John Creek [MD]
River Road to Potomac
II-III 29cfs
+0cfs/hr
L7-
Below Recom.

00h23m
Casselman, N. Branch [MD]
Dung Hill Road to Maryland Route 495
I-III 56cfs
+0cfs/hr
L0-
Below Recom.

01h07m
Casselman [MD]
1) MD Route 495 to Salisbury, Pennsylvania
I-II 56cfs
+0cfs/hr
L4-
Below Recom.

01h07m
Catoctin Creek [MD]
US 40 to Potomac River
I-II 1.65ft
-0.01ft/hr
L0-
Below Recom.

00h52m
Conococheague Creek [MD]
Wilson Bridge (US 40) to Williamsport, MD Boat Ramp
I 1.56ft
+0.00ft/hr
L0-
Below Recom.

00h52m
Conowingo Creek [MD]
Oakwood to Susquehanna River
IV-V n/a

Crabtree Creek [MD]
Swanton, MD to Savage Reservoir
III-IV+ 25cfs
+0cfs/hr
L2-
Below Recom.

00h23m
Deep Creek [MD]
Dam to Youghiogheny River
V n/a

Deer Creek [MD]
1. Bond Road to MD 23
I 2.19ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Deer Creek [MD]
2. Harford Creamery Rd. to Eden Mill Park boat ramp
I 2.19ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Deer Creek [MD]
3. Eden Mill Dam to Rocks State Park
I-II(III) 2.19ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Deer Creek [MD]
4. Rocks State Park to Sandy Hook Rd./Deer Creek Conservatio...
I-II(III) 2.19ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Deer Creek [MD]
5. Sandy Hook Rd./Deer Creek Cons. area to MD 136
I-II 2.19ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Deer Creek [MD]
6. MD 136 to Susquehanna River
I-II 2.19ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Evitts Creek [MD]
1. Lake Gordon Dam (PA) to Maryland Route 144 (MD)
I-III 2.05ft
+0.00ft/hr
L0-
Below Recom.

01h07m
Evitts Creek [MD]
2. MD 144 to MD 51
I-II 2.05ft
+0.00ft/hr
L0-
Below Recom.

01h07m
Fifteen Mile Creek [MD]
US Route 40 to Potomac River
I-II(III) 0.65ft
+0.00ft/hr
L0-
Below Recom.

00h37m
Flintstone Creek [MD]
Flintstone Creek Road to Town Creek
I-III 23cfs
+0cfs/hr
L0-
Below Recom.

01h07m
Georges Creek [MD]
Maryland Rte. 36 (Midland) to N. Branch Potomac River
III-IV 3.31ft
+0.00ft/hr
L0-
Below Recom.

00h52m
Gunpowder Falls [MD]
1 - Graves Run Rd to Prettyboy Reservoir (Gunpowder Road)
II+ 5cfs
-1cfs/hr
L0-
Below Recom.

01h22m
Gunpowder Falls [MD]
2 - Prettyboy Dam to Falls Road
I-III 30cfs
-1cfs/hr
L0-
Below Recom.

00h37m
Gunpowder Falls [MD]
3 - Masemore Road to Blue Mount Road
I-II 30cfs
-1cfs/hr
L0-
Below Recom.

00h37m
Gunpowder Falls [MD]
4. Blue Mount Road to Phoenix
I 95cfs
-2cfs/hr
L0-
Below Recom.

00h18m
Gunpowder Falls [MD]
5 - Lower Loch Raven Dam to Route 1
I-II 95cfs
-2cfs/hr
L9-
Below Recom.

00h18m
Gunpowder Falls [MD]
6 - Route 1 to U.S.40
II-III ~ 160cfs
-0cfs/hr
L0-
Below Recom.

00h25m
Gwynns Falls [MD]
1) Villa Nova to Woodlawn
II 16cfs
+0cfs/hr
L5-
Below Recom.

01h07m
Gwynns Falls [MD]
2) Gwynn Oak Ave. to Wilkens Ave (US 1)
II-III(IV) 16cfs
+0cfs/hr
L5-
Below Recom.

01h07m
Herring Run [MD]
Echodale Ave to US 40
II-III 0cfs
+0cfs/hr
L9-
Below Recom.

00h18m
Hunting Creek [MD]
Catoctin Hollow Road to Frank Bentz Lake
III-IV+(V) 14cfs
-1cfs/hr
L7-
Below Recom.

00h52m
Jennings Run [MD]
Barrelville to Wills Creek
III+ 43cfs
+2cfs/hr
L6-
Below Recom.

00h23m
Jones Falls [MD]
Lake Roland to Round Falls
I-III n/a

Laurel Run [MD]
Laurel Run
IV 2.90ft
-0.01ft/hr
L0-
Below Recom.

00h23m
Little Falls of the Gunpowder [MD]
Parkton (Maryland Route 45) to Gunpowder Falls
I-III 33cfs
+0cfs/hr
L2-
Below Recom.

00h23m
Little Gunpowder Falls [MD]
1) Bottom Rd @ Laurel Brook to Jerusalem Mill (Jerusalem Rd....
I-II 34cfs
+0cfs/hr
L8-
Below Recom.

00h23m
Little Gunpowder Falls [MD]
2) Jerusalem Mill (Jerusalem Rd.) to U.S. Route 40
II-III 34cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Little Seneca Creek [MD]
Boyds to Darnestown
II(III) 71cfs
-2cfs/hr
L0-
Below Recom.

00h48m
Long Green Creek [MD]
Glen Arm Rd. to Gunpowder Falls
IV 8cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Middle Creek (Catoctin Creek trib.) [MD]
Wolfsville to Myersville
II-III(V) 1.65ft
-0.01ft/hr
L0-
Below Recom.

00h52m
Middle Creek (Toms Creek trib.) [MD]
T318 to Harney Road
II+ 27cfs
+0cfs/hr
L0-
Below Recom.

01h07m
Mill Run [MD]
Pigs Ear Road to Yough River Lake
III-IV+ 10cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Monocacy River [MD]
1. Creagerstown Park to Devilbiss Bridge Park
I 1.66ft
+0.00ft/hr
R3-
Runnable

01h07m
Monocacy River [MD]
2. Devilbiss Bridge Park to Riverbend Park
I 1.66ft
+0.00ft/hr
R3-
Runnable

01h07m
Monocacy River [MD]
3. Pinecliff Park to Buckeystown Park
I(II) 1.66ft
+0.00ft/hr
R3-
Runnable

01h07m
Monocacy River [MD]
4. Buckeystown Park to Park Mills Road
I 1.66ft
+0.00ft/hr
R3-
Runnable

02h09m
Muddy Creek [MD]
Cranesville Swamp Nature Preserve (Lake Ford Road) to Youghi...
I-III(V) 10cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Northeast Creek [MD]
below covered bridge on Route 272
V 57cfs
+3cfs/hr
L8-
Below Recom.

00h52m
Octoraro Creek [MD]
3. New Bridge Road to Richardsmere
II 2.19ft
+0.00ft/hr
L9-
Below Recom.

00h23m
Olmsted Island Creek [MD]
Clara Barton Parkway to C&O Canal
V n/a

Owens Creek [MD]
1) Lantz to Roddy Covered Bridge
II-IV 14cfs
-1cfs/hr
L7-
Below Recom.

00h52m
Owens Creek [MD]
2) Rocky Ridge Road (Hwy.77) to Monocacy River
I-II 14cfs
-1cfs/hr
L0-
Below Recom.

00h52m
Patapsco, S. Branch [MD]
1. Woodbine to Henryton Rd.
II+(III) 22cfs
+0cfs/hr
L8-
Below Recom.

00h37m
Patapsco, S. Branch [MD]
2. Marriottsville Rd to Patapsco, N. Branch confluence
I-III(IV) 54cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Patapsco [MD]
1. N. Br./S. Br. confluence to Daniels river access
I 54cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Patapsco [MD]
2. Daniels river access (below Dam) to Elkridge
I-III ~ 54cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Patuxent, Little [MD]
US Route 29 (Columbia) to US Route 1
I-IV 57cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Patuxent, Middle [MD]
Carroll Mill Road to Savage Mill
I-II(IV) 3.27ft
+0.00ft/hr
L0-
Below Recom.

00h23m
Piney Run [MD]
Arrington Road to Marriottsville
I-III(IV) 7cfs
+0cfs/hr
L0-
Below Recom.

00h37m
Potomac, North Branch [MD]
1. Henry, WV to Gormania, WV
I-III 2.90ft
-0.01ft/hr
L0-
Below Recom.

00h23m
Potomac, North Branch [MD]
2. Gormania, WV to Kitzmiller, MD
III-IV 2.90ft
-0.01ft/hr
L0-
Below Recom.

00h23m
Potomac, North Branch [MD]
3. Kitzmiller, MD to Jennings Randolph Lake
II-III 2.90ft
-0.01ft/hr
L0-
Below Recom.

00h23m
Potomac, North Branch [MD]
4. Barnum, WV to Bloomington, MD
II(III) 222cfs
-3cfs/hr
L1-
Below Recom.

00h23m
Potomac, North Branch [MD]
5. Bloomington, MD to Keyser, WV
I-II 316cfs
-4cfs/hr
L6-
Below Recom.

00h37m
Potomac, North Branch [MD]
6. Black Oak River Access Nr. McCoole, MD to Pinto, MD
I 316cfs
-4cfs/hr
R2-
Lower Runnable

00h37m
Potomac, North Branch [MD]
7. Pinto, MD to Upper Potomac Industrial Park (upstream of C...
I 316cfs
-4cfs/hr
R2-
Lower Runnable

00h37m
Potomac, North Branch [MD]
8. Wiley's Ford, WV to Oldtown Toll Bridge
I 316cfs
-4cfs/hr
R2-
Lower Runnable

00h37m
Potomac [MD]
0.1 Oldtown Toll Bridge to Paw Paw Tunnel Campground
I 4.64ft
+0.00ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.2 Paw Paw Tunnel Campground to Fifteen Mile Creek Boat Lan...
I 4.64ft
+0.00ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.3 Fifteen Mile Creek Boat Ramp to Hancock, MD
I 3.64ft
-0.01ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.4 Big Pool/Fort Frederick Campground to Williamsport MD
I 3.64ft
-0.01ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.5 Dam # 4 to Shepherdstown WV
I 3.64ft
-0.01ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.6 Shepherdstown, WV to Dargans Bend Boat Ramp
I 3.64ft
-0.01ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.7 - Potomac - Dargans Bend Boat Ramp to Potoma Wayside
II+ 3.64ft
-0.01ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.8 Sandy Hook/Potoma Wayside to Point of Rocks MD
I-II 3.64ft
-0.01ft/hr
R4-
Runnable

00h23m
Potomac [MD]
0.9 Point of Rocks to Mouth of Monocacy
I 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Potomac [MD]
1. Mouth of Monocacy to Riley's Lock Boat Ramp
I 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Potomac [MD]
2. GW Canal Loop or Violette's Lock to Pennyfield Lock
I-II 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Potomac [MD]
3. Great Falls (Center Lines)
V+ 3.25ft
+0.00ft/hr
L6-
Below Recom.

00h52m
Potomac [MD]
3. Great Falls (Fish Ladder)
IV-V(V+) 3.25ft
+0.00ft/hr
L7-
Below Recom.

00h52m
Potomac [MD]
3. Great Falls (MD Lines)
V+ 3.25ft
+0.00ft/hr
R6-
Runnable

00h52m
Potomac [MD]
3. Great Falls (VA Lines)
V 3.25ft
+0.00ft/hr
R5-
Runnable

00h52m
Potomac [MD]
3. Through Great Falls (several runs)
V+ 3.25ft
+0.00ft/hr
R5-
Runnable

00h52m
Potomac [MD]
4. Sandy Beach/O-Deck to Anglers Inn
II-III(IV) 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Potomac [MD]
5. Anglers Inn to Lock 10
II 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Potomac [MD]
6. Lock 10 to Sycamore Island
I 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Potomac [MD]
7. Little Falls
II-III(IV) 3.25ft
+0.00ft/hr
R4-
Runnable

00h52m
Rock Creek [MD]
1. Rockville to Beach Dr. Near DC/MD line.
I(II) 29cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Rock Creek [MD]
2. Beach Dr. below East-West Hwy to Potomac River in D.C.
I-III 29cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Savage [MD]
1. Avilton Lonaconing Road to Head of Savage Reservoir
II(IV) 25cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Savage [MD]
2. Savage Dam to North Branch Potomac River
III-IV 60cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Seneca Creek [MD]
Black Rock Mill to Riley's Lock Boat Ramp
I-II 71cfs
-2cfs/hr
L8-
Below Recom.

00h48m
Sideling Hill Creek [MD]
Purcell Penn.(sr 2011)to the Potomac river
I-II 0.65ft
+0.00ft/hr
L0-
Below Recom.

00h37m
Town Creek [MD]
1. Chaneysville to I-68 (Maryland)
I-II 2.05ft
+0.00ft/hr
L8-
Below Recom.

01h07m
Town Creek [MD]
2. I-68 to Potomac River
I 23cfs
+0cfs/hr
L0-
Below Recom.

01h07m
Wills Creek [MD]
Ellerslie to Eckhart Junction
I-II 43cfs
+2cfs/hr
L0-
Below Recom.

00h23m
Winters Run [MD]
Pleasantville Road to Maryland Route 7
I-II 32cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Youghiogheny [MD]
0. US Route 50 to Millers Run
I-II 10cfs
+0cfs/hr
L0-
Below Recom.

00h23m
Youghiogheny [MD]
1. Tippy-Top
IV 166cfs
+0cfs/hr
L9-
Below Recom.

00h23m
Youghiogheny [MD]
2. Top
IV-V 166cfs
+0cfs/hr
L9-
Below Recom.

00h23m
Youghiogheny [MD]
3. Upper
IV-V 2.76ft
+0.00ft/hr
L5-
Below Recom.

00h52m
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