Maryland, US River List

Level Legend

Low

Running

High

Unknown

River Name/Section	Class	Level		Updated
Anacostia, Northwest Branch [MD] US Rte 29 to Riggs Road	I-III(V+)	33 cfs 0 cfs/hr	L5- Below Recom.	00h26m
Antietam Creek [MD] 1) Upper: Oak Ridge Dr. to Hwy.68 (Devils Backbone Park)	I-II	3.81 ft -0.01 ft/hr	R4- Runnable	00h56m
Antietam Creek [MD] 2) Hwy 68 to Hwy 34	I-II	3.81 ft -0.01 ft/hr	R4- Runnable	00h56m
Antietam Creek [MD] 3) Hwy.34 to Potomac River	I-II	3.81 ft -0.01 ft/hr	R4- Runnable	00h56m
Bear Creek [MD] U.S. 219 to Youghiogheny River at Friendsville	IV	186 cfs -5 cfs/hr	L6- Below Recom.	00h41m
Beaver Creek [MD] Beaver Creek Park N Ride (I-70) to Alternate Rt. 40	I(II)	3.81 ft -0.01 ft/hr	L0- Below Recom.	00h56m
Bennett Creek [MD] MD Route 355 to Monocacy River	I-II	145 cfs + 4 cfs/hr	R0- Lower Runnable	00h26m
Big Elk Creek [MD] PA Route 341 to Elkton	I-II	108 cfs 0 cfs/hr	L9- Below Recom.	01h26m
Broad Creek [MD] MD Route 136 to MD Route 623	I-II	264 cfs + 7 cfs/hr	L0- Below Recom.	00h56m
Cabin John Creek [MD] River Road to Potomac	II-III	86 cfs + 1 cfs/hr	L8- Below Recom.	00h56m
Casselman, N. Branch [MD] Dung Hill Road to Maryland Route 495	I-III	1.87 ft +0.01 ft/hr	L0- Below Recom.	00h41m
Casselman [MD] MD Route 495 to Salisbury, Pennsylvania	I-II	236 cfs + 4 cfs/hr	R3- Runnable	00h41m
Catoctin Creek [MD] US 40 to Potomac River	I-II	2.54 ft +0.01 ft/hr	R3- Runnable	00h26m
Conococheague Creek [MD] Wilson Bridge (US 40) to Williamsport, MD Boat Ramp	I	4.42 ft -0.01 ft/hr	R5- Runnable	00h26m
Conowingo Creek [MD] Oakwood to Susquehanna River	IV-V	n/a
Crabtree Creek [MD] Swanton, MD to Savage Reservoir	III-IV+	163 cfs + 3 cfs/hr	L4- Below Recom.	00h56m
Deep Creek [MD] Dam to Youghiogheny River	V	n/a
Deer Creek [MD] 1. Bond Road to MD 23	I	2.95 ft +0.02 ft/hr	L8- Below Recom.	00h56m
Deer Creek [MD] 2. Harford Creamery Rd. to Eden Mill Park boat ramp	I	2.95 ft +0.02 ft/hr	R3- Runnable	00h56m
Deer Creek [MD] 3. Eden Mill Dam to Rocks State Park	I-II(III)	2.95 ft +0.02 ft/hr	R4- Runnable	00h56m
Deer Creek [MD] 4. Rocks State Park to US 1, Benjamin Bridge Access	I-II(III)	2.95 ft +0.02 ft/hr	R4- Runnable	00h56m
Deer Creek [MD] 5. US Rt 1, Benjamin Bridge Access to MD 136	I-II	2.95 ft +0.02 ft/hr	R4- Runnable	00h56m
Deer Creek [MD] 6. MD 136 to Susquehanna River	I-II	2.95 ft +0.02 ft/hr	R4- Runnable	00h56m
Evitts Creek [MD] 1. Lake Gordon Dam (PA) to Maryland Route 144 (MD)	I-III	4.06 ft -0.02 ft/hr	L0- Below Recom.	00h41m
Evitts Creek [MD] 2. MD 144 to MD 51	I-II	4.06 ft -0.02 ft/hr	L0- Below Recom.	00h41m
Fifteen Mile Creek [MD] US Route 40 to Potomac River	I-II(III)	2.33 ft -0.01 ft/hr	L2- Below Recom.	01h11m
Flintstone Creek [MD] Flintstone Creek Road to Town Creek	I-III	414 cfs -7 cfs/hr	L0- Below Recom.	00h41m
Georges Creek [MD] Maryland Rte. 36 (Midland) to N. Branch Potomac River	III-IV	4.36 ft +0.01 ft/hr	L0- Below Recom.	00h26m
Gunpowder Falls [MD] 1 - Graves Run Rd to Prettyboy Reservoir (Gunpowder Road)	II+	28 cfs + 2 cfs/hr	L6- Below Recom.	00h41m
Gunpowder Falls [MD] 2 - Prettyboy Dam to Falls Road	I-III	233 cfs + 6 cfs/hr	R5- Runnable	01h11m
Gunpowder Falls [MD] 3 - Masemore Road to Monkton Road	I-II	344 cfs 0 cfs/hr	R4- Runnable	00h58m
Gunpowder Falls [MD] 4. Monkton Road to Phoenix	I	456 cfs + 2 cfs/hr	R4- Runnable	00h56m
Gunpowder Falls [MD] 5 - Lower Loch Raven Dam to Route 1	I-II	~ 683 cfs + 17 cfs/hr	R4- Runnable	00h24m
Gunpowder Falls [MD] 6 - Route 1 to U.S.40	II-III	~ 695 cfs + 17 cfs/hr	R4- Runnable	00h24m
Gwynns Falls [MD] 1) Villa Nova to Woodlawn	II	55 cfs + 3 cfs/hr	L6- Below Recom.	00h41m
Gwynns Falls [MD] 2) Gwynn Oak Ave. to Wilkens Ave (US 1)	II-III(IV)	55 cfs + 3 cfs/hr	L6- Below Recom.	00h41m
Herring Run [MD] Echodale Ave to US 40	II-III	7 cfs + 8 cfs/hr	L9- Below Recom.	00h22m
Hunting Creek [MD] Catoctin Hollow Road to Frank Bentz Lake	III-IV+(V)	217 cfs + 4 cfs/hr	L8- Below Recom.	00h26m
Jennings Run [MD] Barrelville to Wills Creek	III+	344 cfs 0 cfs/hr	L7- Below Recom.	00h56m
Jones Falls [MD] Lake Roland to Round Falls	I-III	n/a
Laurel Run [MD] Laurel Run	IV	3.87 ft +0.02 ft/hr	L1- Below Recom.	00h56m
Little Falls of the Gunpowder [MD] Parkton (Maryland Route 45) to Gunpowder Falls	I-III	151 cfs + 5 cfs/hr	L8- Below Recom.	00h56m
Little Gunpowder Falls [MD] 1) Bottom Rd @ Laurel Brook to Jerusalem Mill (Jerusalem Rd....	I-II	98 cfs + 2 cfs/hr	L0- Below Recom.	00h56m
Little Gunpowder Falls [MD] 2) Jerusalem Mill (Jerusalem Rd.) to U.S. Route 40	II-III	98 cfs + 2 cfs/hr	L2- Below Recom.	00h56m
Little Patuxent [MD] US Route 29 (Columbia) to US Route 1	I-IV	179 cfs + 4 cfs/hr	L0- Below Recom.	00h56m
Little Seneca Creek [MD] Boyds to Darnestown	II(III)	247 cfs + 5 cfs/hr	L0- Below Recom.	00h22m
Long Green Creek [MD] Glen Arm Rd. to Gunpowder Falls	IV	24 cfs + 1 cfs/hr	L0- Below Recom.	00h56m
Middle Creek (Catoctin Creek trib.) [MD] Wolfsville to Myersville	II-III(V)	2.54 ft +0.01 ft/hr	L2- Below Recom.	00h26m
Middle Creek (Toms Creek trib.) [MD] T318 to Harney Road	II+	344 cfs + 3 cfs/hr	L4- Below Recom.	00h41m
Middle Patuxent [MD] Carroll Mill Road to Savage Mill	I-II(IV)	4.06 ft +0.02 ft/hr	L0- Below Recom.	00h56m
Mill Run [MD] Pigs Ear Road to Yough River Lake	III-IV+	43 cfs -1 cfs/hr	L1- Below Recom.	00h56m
Monocacy River [MD] 1. Creagerstown Park to Devilbiss Bridge Park	I	4.76 ft -0.02 ft/hr	R5- Runnable	01h41m
Monocacy River [MD] 2. Devilbiss Bridge Park to Riverbend Park	I	4.76 ft -0.02 ft/hr	R5- Runnable	01h41m
Monocacy River [MD] 3. Pinecliff Park to Buckeystown Park	I(II)	4.76 ft -0.02 ft/hr	R5- Runnable	01h41m
Monocacy River [MD] 4. Buckeystown Park to Park Mills Road	I(II)	4.76 ft -0.02 ft/hr	R5- Runnable	01h41m
Muddy Creek [MD] Cranesville Swamp Nature Preserve (Lake Ford Road) to Youghi...	I-III(V)	43 cfs -1 cfs/hr	L3- Below Recom.	00h56m
Northeast Creek [MD] below covered bridge on Route 272	V	108 cfs 0 cfs/hr	L8- Below Recom.	01h26m
Octoraro Creek [MD] New Bridge Road to Richardsmere	II	409 cfs 0 cfs/hr	R3- Runnable	00h26m
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	217 cfs + 4 cfs/hr	L8- Below Recom.	00h26m
Owens Creek [MD] 2) Rocky Ridge Road (Hwy.77) to Monocacy River	I-II	217 cfs + 4 cfs/hr	L5- Below Recom.	00h26m
Patapsco, S. Branch [MD] 1. Woodbine to Henryton Rd.	II+(III)	220 cfs + 12 cfs/hr	L8- Below Recom.	01h13m
Patapsco, S. Branch [MD] 2. Marriottsville Rd to Patapsco, N. Branch confluence	I-III(IV)	416 cfs 0 cfs/hr	R4- Runnable	00h58m
Patapsco [MD] 1. N. Br./S. Br. confluence to Daniels river access	I	516 cfs 0 cfs/hr	R4- Runnable	00h58m
Patapsco [MD] 2. Daniels river access (below Dam) to Elkridge	I-III	616 cfs 0 cfs/hr	R4- Runnable	00h56m
Piney Run [MD] Arrington Road to Marriottsville	I-III(IV)	40 cfs + 1 cfs/hr	L6- Below Recom.	01h11m
Potomac, North Branch [MD] 1. Henry, WV to Gormania, WV	I-III	3.87 ft +0.02 ft/hr	L3- Below Recom.	00h56m
Potomac, North Branch [MD] 2. Gormania, WV to Kitzmiller, MD	III-IV	3.87 ft +0.02 ft/hr	R1- Lower Runnable	00h56m
Potomac, North Branch [MD] 3. Kitzmiller, MD to Jennings Randolph Lake	II-III	3.87 ft +0.02 ft/hr	R2- Lower Runnable	00h56m
Potomac, North Branch [MD] 4. Barnum, WV to Bloomington, MD	II(III)	363 cfs + 4 cfs/hr	L8- Below Recom.	00h56m
Potomac, North Branch [MD] 5. Bloomington, MD to Keyser, WV	I-II	629 cfs -6 cfs/hr	R2- Lower Runnable	01h11m
Potomac, North Branch [MD] 6. Black Oak River Access Nr. McCoole, MD to Pinto, MD	I	629 cfs -6 cfs/hr	R4- Runnable	01h11m
Potomac, North Branch [MD] 7. Pinto, MD to Upper Potomac Industrial Park (upstream of C...	I	629 cfs -6 cfs/hr	R4- Runnable	01h11m
Potomac, North Branch [MD] 8. Wiley's Ford, WV to Oldtown Toll Bridge	I	1530 cfs + 6 cfs/hr	R5- Runnable	01h13m
Potomac [MD] 0.1 Oldtown Toll Bridge to Paw Paw Tunnel Campground	I	9.85 ft -0.02 ft/hr	H9- Above Recom.	00h56m
Potomac [MD] 0.2 Paw Paw Tunnel Campground to Fifteen Mile Creek Boat Lan...	I	9.85 ft -0.02 ft/hr	H7- Above Recom.	00h56m
Potomac [MD] 0.3 Fifteen Mile Creek Boat Ramp to Hancock, MD	I	8.35 ft -0.03 ft/hr	H9- Above Recom.	00h56m
Potomac [MD] 0.4 Big Pool Campground to Williamsport MD	I	8.35 ft -0.03 ft/hr	H9- Above Recom.	00h56m
Potomac [MD] 0.5 Dam # 4 to Shepherdstown WV	I	8.35 ft -0.03 ft/hr	H8- Above Recom.	00h56m
Potomac [MD] 0.6 Shepherdstown, WV to Dargans Bend Boat Ramp	I	8.35 ft -0.03 ft/hr	H8- Above Recom.	00h56m
Potomac [MD] 0.7 - Harpers Ferry - Dargans Bend Boat Ramp to Sandy Hook/P...	II+	~ 7.31 ft -0.03 ft/hr	H9- Above Recom.	02h02m
Potomac [MD] 0.8 Sandy Hook/Potoma Wayside to Point of Rocks MD	I-II	7.31 ft -0.03 ft/hr	R8- Upper Runnable	02h02m
Potomac [MD] 0.9 Point of Rocks to Mouth of Monocacy	I	5.70 ft -0.02 ft/hr	R5- Runnable	00h26m
Potomac [MD] 1. Mouth of Monocacy to Riley's Lock Boat Ramp	I	5.70 ft -0.02 ft/hr	R5- Runnable	00h26m
Potomac [MD] 2. Violette's Lock to Pennyfield Lock	I-II	5.70 ft -0.02 ft/hr	R5- Runnable	00h26m
Potomac [MD] 3. Great Falls (Center Lines)	V+	5.70 ft -0.02 ft/hr	H9- Above Recom.	00h26m
Potomac [MD] 3. Great Falls (Fish Ladder)	IV-V(V+)	5.70 ft -0.02 ft/hr	H5- Above Recom.	00h26m
Potomac [MD] 3. Great Falls (MD Lines)	V+	5.70 ft -0.02 ft/hr	H2- Above Recom.	00h26m
Potomac [MD] 3. Great Falls (VA Lines)	V	5.70 ft -0.02 ft/hr	H9- Above Recom.	00h26m
Potomac [MD] 3. Through Great Falls (several runs)	V+	5.70 ft -0.02 ft/hr	H9- Above Recom.	00h26m
Potomac [MD] 4. Sandy Beach/O-Deck to Anglers Inn	III-IV	5.70 ft -0.02 ft/hr	R9- Upper Runnable	00h26m
Potomac [MD] 5. Anglers Inn to Lock 10	II	5.70 ft -0.02 ft/hr	R8- Upper Runnable	00h26m
Potomac [MD] 6. Lock 10 to Sycamore Island	I	5.70 ft -0.02 ft/hr	R8- Upper Runnable	00h26m
Potomac [MD] 7. Little Falls	IV	5.70 ft -0.02 ft/hr	R9- Upper Runnable	00h26m
Rock Creek [MD] 1. Rockville to Beach Dr. Near DC/MD line.	I(II)	86 cfs + 1 cfs/hr	L0- Below Recom.	00h56m
Rock Creek [MD] 2. Beach Dr. below East-West Hwy to Potomac River in D.C.	I-III	86 cfs + 1 cfs/hr	L0- Below Recom.	00h56m
Savage [MD] 1. Avilton Lonaconing Road to Head of Savage Reservoir	II(IV)	163 cfs + 3 cfs/hr	L0- Below Recom.	00h56m
Savage [MD] 2. Savage Dam to North Branch Potomac River	III-IV	121 cfs 0 cfs/hr	L0- Below Recom.	00h56m
Seneca Creek [MD] Black Rock Mill to Riley's Lock Boat Ramp	I-II	247 cfs + 5 cfs/hr	R4- Runnable	00h22m
Sideling Hill Creek [MD] Purcell Penn.(sr 2011)to the Potomac river	I-II	2.33 ft -0.01 ft/hr	R4- Runnable	01h11m
Town Creek [MD] 1. Chaneysville to I-68 (Maryland)	I-II	4.06 ft -0.02 ft/hr	R0- Lower Runnable	00h41m
Town Creek [MD] 2. I-68 to Potomac River	I	414 cfs -7 cfs/hr	R4- Runnable	00h41m
Wills Creek [MD] Ellerslie to Eckhart Junction	I-II	344 cfs 0 cfs/hr	R4- Runnable	00h56m
Winters Run [MD] Pleasantville Road to Maryland Route 7	I-II	98 cfs + 2 cfs/hr	L0- Below Recom.	00h56m
Youghiogheny [MD] 0. US Route 50 to Millers Run	I-II	43 cfs -1 cfs/hr	L5- Below Recom.	00h56m
Youghiogheny [MD] 1. Tippy-Top	IV	442 cfs 0 cfs/hr	R2- Lower Runnable	00h56m
Youghiogheny [MD] 2. Top	IV-V	442 cfs 0 cfs/hr	R2- Lower Runnable	00h56m
Youghiogheny [MD] 3. Upper	IV-V	3.68 ft +0.19 ft/hr	R7- Upper Runnable	00h26m