Street Flooding Target Hazards 06/04/12 updated A Avery Rd 14900 blk @ Rock Creek: ADC: 5165 A-4 STATION: 3 - Rockville GPS Coordinates: 39.100351,-77.125381 Right South on Route 28 from Veirs Mill .Left on route 28, Left on Avery Rd. Stream Left South on Route 28 from Veirs Mill left on Muncaster Mill Rd, Left on Avery Rd. Downstream Norbeck Rd just past Avery.

B Rd 2300 blk @ Rock Creek: ADC: 5164 B-6 STATION: 3-Rockville GPS Coordinates: 39.086011,-77.117134 Stream Right From Veirs Mill and Route 28 head south on 28, Right onto Baltimore Rd. Stream Left From Veirs Mill and Route 28 head south on 28, Right onto Baltimore Rd. Downstream Veirs Mill Rd between Twinbrook Pkwy & Aspen Hill Rd, entrance road to Dept. of Health & Humane Services @ 12800 blk Veirs Mill Rd.

Batchellors Forest Rd 16500 Blk: ADC: 5050 B-10 STATION: 40-Olney GPS Coordinates: 39.123277,-77.059867 Stream Right From Georgia Ave and Route 28, South on Georgia Ave, Right on Batchellors Forest Rd. Stream Left From Georgia Ave and Route 28, South on Georgia Ave, Right on Emory Church Rd, Right on Batchellors Forest Rd. Downstream 2100 blk Norbeck Rd, Layhill Rd south of Norbeck, Northwest Park golf course ponds.

Beach Drive @ Rock Creek Garret Park Rd: ADC: 5285 F-4 STATION: 5- Kensington GPS Coordinates: 39.041348,-77.088671 Stream Right From 355 and Montrose Rd, go east onto Montrose Road which will now be Randolph Road, Right onto Parklawn Drive, Left on Boiling Brook Pkwy, Right onto Schuylkill Rd, Left onto Garret Park Rd. Stream Left From 355 and Montrose Rd, east on Montrose Rd onto Randolph Rd, Right on Dewey Rd, Right on Garret Park Rd

Street Flooding Target Hazards 06/04/12 updated

Beach Drive @ Rock Creek Knowles Ave: ADC: 5285 G-6 STATION: 5- Kensington GPS Coordinates: 39.030996,-77.086095 Stream Left North from 495 outer loop, North on Connecticut Ave, Left on Knowles Ave. Stream Right from Old Georgetown Rd and Tuckerman Lane, head east onto Tuckerman Lane Left on Rockville Pike, Right on Strathmore Ave, Road changes into Knowles Ave.

Beach Drive @ Rock Creek Cedar La - Connecticut Ave: ADC: 5285 F-9 G-9 STATION: 7-Chevy Chase GPS Coordinates: 39.012405,-77.090944 Upstream Crossing, From 495, North on Connecticut Ave, Left on Saul Rd, Left on Cedar Lane. Downstream Crossing From 495, North on Connecticut Ave, Left on Beach (There may be a locked gate here)

Beach Drive @ Rock Creek Connecticut Ave – Stoneybrook Dr: ADC: 5285 H-9,J-9, K-9, K-8 STATION: 7-Chevy Chase GPS Coordinates: 39.012587,-77.063825 Upstream Crossing: North on 495, North on Connecticut Ave, Right on Beach Drive (there may be a locked gate here). Downstream Crossing North on 495, North on Connecticut Ave, Right on Saul Rd, Right on Kensington Pkwy, Right on Beach Drive. Downstream Stonybrook Dr @ Jones Mill Rd, East West Hgwy near Jones Mill Rd.

Beach Drive @ Rock Creek East West Hgwy – DC Line: ADC: 5407 K-2 STATION: 7-Chevy Chase GPS Coordinates: 38.993249,-77.063525 Upstream Crossing: North on 495, South on Connecticut Ave, Left on East West Hgwy. Downstream Crossing: North on 495, South on Connecticut Ave, Left on East West Hgwy, Right on Grubb Rd, into DC, Right on Beach Dr. Downstream In DC Military Rd @ Rock Creek.

Black Rock Rd 16500 blk @ Great Seneca Creek: ADC: 5045 K-10 STATION: 29- Germantown GPS Coordinates: 39.126462,-77.314504 Stream Right: From 270 and 118 Germantown Rd head west on Germantown Road turn Right on Black Rock Road. Stream Left: From Station 30 make Left on Falls and Left on River Road, Right on Esworthy Rd, Right on Seneca Rd, Left on Darnestown. Street Flooding Target Hazards 06/04/12 updated Downstream Darnestown Rd 16200 blk @ Seneca Creek, River Rd 16400 blk @ Seneca Creek, @ Seneca.

Blunt Rd 21000 Blk: ADC: 4929 G-9 STATION: 29- Germantown GPS Coordinates: 39.196825,-77.219835 Stream Right: North on 270, exit 13A Middlebrook Rd, Left on Scenery Dr, Right on Blunt Rd. Stream Left: North on 270, exit 13A Montgomery Village Ave, Left on Wightman Rd, Left on Brink Rd, and Left on Blunt Rd. Downstream: North on 270, exit 11A Montgomery Village Ave, head North onto 355, Right on Watkins Mill Rd 20100 blk between Blunt and Apple Ridge Dr, 18900 blk Frederick Rd.

Bowie Mill Rd 17900 Blk: ADC: 5049 D-6 STATION: 40- Olney GPS Coordinates: 39.15026,-77.108271 Stream Left From Norbeck Rd, North on Georgia Ave, Left on Emory La, Right on Cashell Rd, Left on Bowie Mill Rd. Stream Right North on 270, take Exit 9, 370 to Metro, Shady Grove Rd North, Right on Muncaster Mill Rd, Left on Bowie Mill Rd. Downstream Muncaster Mill Rd 5000 blk, Lake Frank.

Bradley Blvd 8100 blk @ : ADC: 5284 D-9 STATION: 10-Cabin John GPS Coordinates: 39.009154,-77.166708 Stream Right: From Falls and River Rd head East on River Rd, Left on Bradley Blvd. Stream Left: From Falls and River Rd head East on River, Left on Seven Lochs, Left on Bradley Blvd. Downstream River Rd 8300 blk @ Carderock Springs Dr and Sta. 10.

Brighton Dam Rd 1900 blk @ : ADC: 4932 D-10 STATION: 4- Sandy Spring GPS Coordinates: 39.193269,-77.041102 Stream Left From Norbeck Rd and Georgia Ave head North on Georgia Ave, Right on New Hampshire Ave, Right on Brighton Dam Rd. Stream Right may be inaccessible due to flooding at Reddy Branch. Downstream See Goldmine Rd 1200 blk @ Hawlings River

Brighton Dam Rd 2200 blk @ Reddy Branch: ADC: 5050 C-1 STATION: 40- Olney GPS Coordinates: 39.184417,-77.045995 Street Flooding Target Hazards 06/04/12 updated Stream Right From Norbeck Rd, North on Georgia Ave, to Brookeville, Right on Market St, road changes to Brighton Dam Rd. Stream Left may be inaccessible due to flooding at Hawlings River. Downstream See Gold Mine Rd 1200 blk @ Hawlings River, 19400 blk New Hampshire Ave, 100 blk Haviland Mill Rd.

Brink Rd 9900 Blk: ADC: 4929 H-8 STATION: 8- Gaithersburg GPS Coordinates: 39.201521,-77.204146 Stream Left North on 270, exit 11A Montgomery Village Ave, Left on Wightman Rd to Brink Rd. Stream Right North on 270, exit 16 Ridge Rd, Right on Brink Rd. Downstream Watkins Mill Rd 20100 blk between Blunt and Apple Ridge Rd, 18900 blk Frederick Rd.

Brookeville Rd 3700 blk @ Reedy Branch: ADC: 5049 H-2 STATION: 40- Olney GPS Coordinates: 39.182189,-77.067451 Access to one side only From 108 and Georgia Ave, West on Olney Laytonsville Rd, Right on Zion Rd, Right on Brookeville Rd. Downstream Brookeville Rd 3300 blk, Georgia Ave 19800 blk just past Brookeville Rd, also see Brighton Dam Rd @ Reedy Branch.

Brookeville Rd 3300 blk @ Reedy Branch: ADC: 5049 K-1 STATION: 40- Olney GPS Coordinates: 39.183024,-77.065238 Access to one side only From Norbeck Rd and Georgia Ave, go North on Georgia Ave, through Brookeville, Left on Brookeville Rd. Downstream Georgia Ave 19800 blk just past Brookeville Rd, also see Brighton Dam Rd 2200blk @ Reedy Branch.

C Cherry Ave 7000 blk @ : ADC: 5409 A-4 STATION 2- Takoma Park GPS Coordinates: 38.981407,-76.997116 Stream Left From 495 East, South on University Blvd, Right on Carroll Ave, Left on Flower Ave, Right on Jackson Ave, Right on Cherry Ave. Stream Right From East West Highway and Georgia Ave take East West Highway to Philadelphia Ave, Left on Carroll Ave, Right on Lincoln Ave, Left on Jackson Ave, Right on Sligo Creek Pkwy, (may be flooded), Left on Cherry Ave. Downstream 7200 blk Flower Ave @ Sligo Creek, See New Hampshire Ave @ Sligo Creek.

Street Flooding Target Hazards 06/04/12 updated

Clopper Rd 12000 blk @ Great Seneca Creek: ADC: 5046 K-6 STATION 8- Gaithersburg GPS Coordinates: 39.150502,-77.245232 Stream Left North on 270, exit 10 Clopper Rd. Stream Right North on 270, exit 13b Middlebrook Rd, Left on Great Seneca hwy, Left on Clopper Rd. Downstream Great Seneca hwy 12100 blk, Riffle Ford Rd 16800 blk, Germantown Darnestown Rd 16400 blk @Great Seneca Creek.

Club Hollow Rd 21500 blk @ : ADC: 5043 H-9 STATION 14- Upper Montgomery GPS Coordinates: 39.134212,-77.451905 Stream Left From Falls and River Rd, West on River, Left at Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, road changes to Fisher Ave, Left on West Willard Rd, Right on Westerly Rd, Right on Edwards Ferry Rd, Left on Club Hollow Rd. Stream Right From Falls and River Rd, West on River, Left at Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, road changes to Fisher Ave and back to Whites Ferry Rd, Left on Trundle Rd, Left on Club Hollow Rd. Downstream River Rd 2400 blk near Elmer School Rd, Potomac River just north of Edwards Ferry.

Colesville Rd 9200 blk @ Sligo Creek: ADC: 5286 G-9 STATION 1/16- Silver Spring GPS Coordinates: 39.005486, -77.022869 Stream Left From 495 East, South on Colesville Rd. Stream Right From 495 East, South on Georgia Ave, Left on Dale Dr, Left on Colesville Rd. Downstream See Wayne Ave 100 blk @ Sligo Creek, See Rd 8300 blk @ Sligo Creek.

D Davis Mill Rd 21600 blk @ Great Seneca Creek: ADC: 4929 G-7 STATION 17- Laytonsville GPS Coordinates: 39.210892,-77.207866 Stream Right North on 270, Exit 11 Montgomery Village Ave, Left on Wightman Rd, Left on Brink Rd, Right on Davis Mill Rd, Right on Huntmaster Rd. Stream Left North on 270, Exit 11 Montgomery Village Ave, Right on Wightman Rd, Left on Goshen Rd, Right on Brink Rd, Left on Woodfield Rd, Left on Goshen School Rd, Right on Huntmaster Rd, Left @ Huntmaster Rd & Dr. Downstream Brink Rd 9700 blk @ Wightman Rd, 18900 blk Frederick Rd. Street Flooding Target Hazards 06/04/12 updated

E Edwards Ferry Rd 17900 blk @ Broad Run: ADC: 5043 H-7 STATION 14- Upper Montgomery GPS Coordinates: 39.148446,-77.454215 Stream Right From Falls and River Rd, West on River, Left at Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, road changes to Fisher Ave and back to Whites Ferry Rd. Left on Edwards Ferry Rd. Stream Left From Falls and River Rd, West on River, Left at Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, road changes to Fisher Ave, Left on Westerly Ave, Right on West Willard, Left on Westerly Ave, Right on Edwards Ferry Rd. Downstream See Club Hollow 21500 blk @ Broad Run.

Elton Farm Rd 3700 blk @ Haights Branch: ADC: 4931 H-2 STATION 17- Laytonsville GPS Coordinates: 39.148446,-77.454215 Stream Right From Georgia Ave and 650 head west on 650 Damascus Rd, Right on Howard Chapel Rd, Left Elton Farm Rd. Stream Left no access, Elton Farm is a dead end street. Downstream See Howard Chapel 23900 blk @ Haights Branch, Georgia Ave & @ county line, Tridelphia Reservoir.

F Forest Glen Rd 1400 blk @ Sligo Creek: ADC: 5286 E-8 STATION 19- Silver Spring GPS Coordinates: 39.016351,-77.031997 Stream Right North on 495 to exit 31 Georgia Ave north, Right on Forest Glen Rd. Stream Left North on 495 to exit 30 Columbia Pike north, Left on University Blvd, Left on Brunett Ave, Right on Forest Glen Rd. Downstream Colesvile Rd 9200 blk @ Sligo Creek, Wayne Ave 200 blk @ Sligo Creek, Piney Branch Rd 8300 blk @ Sligo Creek.

Frederick Rd 22100 blk @ : ADC: 4928 J-5 STATION: 29- Germantown GPS Coordinates: 39.221409,-77.259559 Stream Left North on 270 to exit 16, North on Ridge Rd, Left on Frederick Rd. Street Flooding Target Hazards 06/04/12 updated Stream Right North on 270 to exit 18, North on Clarksburg Rd, Right on Frederick Rd. Downstream West Old Baltimore Rd @ 13000 blk, 270 North of Exit 16, .

G Game Preserve Rd 11200 Blk: ADC: 5047 C-5 STATION: 8- Gaithersburg GPS Coordinates: 39.160182,-77.232462 Stream Right North on 270, exit 11A Montgomery Village Ave, Left on Frederick Rd, Left on Game Preserve Rd. Stream Left North on 270, exit 10 West Diamond Ave, changes to Clopper Rd, Right on Game Preserve Rd. Downstream Clopper Rd 12000 blk @ Game Preserve Rd, 12100 blk Great Seneca Hgwy, 16600 blk Darnestown Germantown Rd.

Garland Ave 7100 blk @ Sligo Creek: ADC: 5409 A-1 STATION:2- Takoma Park GPS Coordinates: 38.990153,-77.018945 Stream Left 495 East, South on University Blvd, Right on Carroll Ave, Left on Garland Ave. Stream Right From East West Hgwy, head east cross Georgia Ave to Philadelphia Ave, Left on Carroll Ave, Road turns into Ethan Allen Ave, Left on Elm Ave, Left on Heather Ave,(may be flooded) Right Sligo Creek Pkwy. Downstream See New Hampshire Ave 7100 blk @ Sligo Creek.

Gold Mine Rd 2000 blk @ Hawlings River: ADC: 5050 C-3 STATION: 40- Olney GPS Coordinates: 39.175236,-77.045428 Stream Right From Georgia and Norbeck Rd, North on Georgia Ave Right on Gold Mine Rd. Stream Left Left on Falls, Right on Wooton Pkwy, road changes to Norbeck Rd, Left on Georgia Ave, Right on Olney Sandy Spring Rd, Left on New Hampshire Ave, Left on Gold Mine Rd. Downstream 19200 blk Chandlee Mill Rd, 19300 blk New Hampshire Ave, See Haviland Mill Rd.

Goldsboro Road 6200 blk @ Massachusetts Ave: ADC: 5406 J-5 STATION: 11- Glen Echo GPS Coordinates: 38.970556,-77.12598 Upstream crossing From Falls and River, west on River, Right on Goldsboro. Downstream crossing From Falls and River west on River, Right Wilson La, Left on Macarthur Blvd, Left on Goldsboro. Downstream: Macarthur Blvd @ Goldsboro, Clara Barton Pkwy 7000 blk.

Street Flooding Target Hazards 06/04/12 updated

Goshen Road 19200 blk @ Cabin Branch: ADC: 5047 K-3 STATION: 8- Gaithersburg GPS Coordinates: 39.169305,-77.190722 Stream Left From 270, Exit 11A Montgomery Village Ave, Right on Centerway Rd, Left on Goshen Rd. Stream Right From 270, Exit 11 Montgomery Village Ave, Right on Stewartown Rd, Right on Goshen Rd. Downstream Montgomery Village Ave 19500 blk after Brassie Pl, Watkins Mill Rd between Stedwick and Apple Ridge, Great Seneca Creek.

Goshen Road 18200 blk @ Whetstone Run: ADC: 5047 K-5 STATION: 8- Gaithersburg GPS Coordinates: 39.153941,-77.192195 Stream Right From 270, Exit 11 Montgomery Village Ave, Right on Midcounty Hgwy, Right on Goshen Rd. Stream Left From 270, Exit 11 Montgomery Village Ave, Right on Lost Knife Rd, Left on Odenhall, Left on Goshen Rd. Downstream Midcounty Hgwy 8900 blk before Goshen, Lake Whetstone.

Griffith Rd 5400 blk @ Hawlings River ADC: 4931 C-4 STATION 17:- Laytonsville GPS Coordinates: 39.229389,-77.107968 Stream Left From Georgia Ave and 108 head north on Georgia, Left on Damascus Rd 650, Left on Griffith Rd. Stream Right From Georgia Ave and 108 head west on Olney Laytonsville Rd, Right on Griffith Rd. Downstream 5200 blk Sundown Rd, See Zion Rd 20800 blk @ Hawlings River.

H Haviland Mill Rd 6900 blk @ Hawlings River: ADC: 5050 J-2 STATION 4:- Sandy Spring GPS Coordinates: 39.18198,-76.995512 Stream Right From Georgia Ave and 108 head East on Olney Sandy Spring Rd, Left on New Hampshire Ave, Right on Haviland Mill Rd. Stream Left From Georgia Ave and 108 head East on Olney Sandy Spring Rd 108, Right on New Hampshire Ave, Left on Brighton Dam Rd, Right on Haviland Mill Downstream Mink Hollow Rd @ county line, Ashton Rd @ county line, .

Hipsley Mill Rd 24800 blk @ Patuxent River (county line): ADC: 4811 B-8 STATION 17:-Laytonsville GPS Coordinates: 39.26517,-77.115021 Street Flooding Target Hazards 06/04/12 updated Stream Right From 270, take exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Right on Fieldcrest Rd, Left on Olney Laytonsville Rd, Right on Hipsley Mill Rd. Stream Left From 270, take exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Right on Fieldcrest Rd, Left on Olney Laytonsville Rd, Left on Damascus Rd, Right on Annapolis Rock Rd into Howard Co., Right on Annapolis Rock Rd, Right on Hipsley Mill Rd. Downstream See Howard Chapel 23900 blk @ Patuxent River.

Howard Chapel Road 23900 blk @ Haights Branch: ADC: 4931 K-1 STATION 17:-Laytonsville GPS Coordinates: 39.250009,-77.065165 Stream Right From Georgia Ave and 650 head west on 650 Damascus Rd, Right on Howard Chapel Rd. Stream Left (may be inaccessible due to flooding at Howard Chapel & Patuxent River) Georgia Ave North into Howard Co., Left on Jennings Chapel Rd, Left on Howard Chapel Rd. Downstream see Howard Chapel @ Patuxent River, Georgia Ave & Patuxent River (county line), Tridelphia Reservoir.

Howard Chapel Road 3900 blk @ Patuxent River: ADC:4811 K-10 STATION 17:-Laytonsville GPS Coordinates: 39.26838,-77.072157 Stream Right (may be inaccessible due to flooding at Howard Chapel & Haights Branch), From Georgia Ave and 650 head west on 650 Damascus Rd, Right on Howard Chapel Rd. Stream Left Georgia Ave into Howard Co., Left on Jennings Chapel Rd, Left on Howard Chapel Rd. Downstream North on Georgia Ave & Patuxent River (county line), Tridelphia Reservoir.

Hoyles Mill Road 15200 blk @ Little Seneca Creek: ADC:5045 K-4 STATION: 29- Germantown GPS Coordinates: 39.163293,-77.316881 Stream Left From 270, Exit 15 Germantown Rd, Right on Clopper Rd, Left on Schaeffer Rd, Right on Hoyles Mill Rd. Stream Right From 270, Exit 15 Germantown Rd, Right on Clopper Rd, Left on White Ground Rd, Left on Hoyles Mill Rd. Downstream Schaeffer Rd 1600 blk @ Little Seneca Creek.

Huntmaster Road 8800 blk @ Goshen Branch: ADC: 4930 A-7 STATION 17:-Laytonsville GPS Coordinates: 39.207887,-77.18256 Stream Left From 270, Exit 11 Montgomery Village Ave, Right on Wightman Rd, Left on Goshen Rd, Right on Brink Rd, Left on Huntmaster Rd. Street Flooding Target Hazards 06/04/12 updated Stream Right From 270, Exit 11 Montgomery Village Ave, Right on Wightman Rd, Left on Goshen Rd, Right on Brink Rd, Left on Woodfield Rd, Left on Goshen School Rd, Left on Huntmaster Rd. Downstream Brink Rd 9700 blk @ Whightman Rd,18900 blk Frederick Rd.

Huntmaster Road 9800 blk @ Great Seneca Creek: ADC: 4929 H-7 STATION 17:-Laytonsville GPS Coordinates: 39.210783,-77.200904 Stream Right From 270, Exit 11 Montgomery Village Ave, Left on Wightman Rd, Left on Brink Rd, Right on Davis Mill Rd, Right on Huntmaster Rd. Stream Left From 270, Exit 11Montgomery Village Ave, Right on Wightman Rd, Left on Goshen Rd, Right on Brink Rd, Left on Woodfield Rd, Left on Goshen School Rd, Right on Huntmaster Rd, Left @ Huntmaster Rd & Dr. Downstream Brink Rd 9700 blk @ Wightman Rd, 18900 blk Frederick Rd.

Hyattstown Mill Rd 14600 blk @ Dark & Soper Branch: ADC: 4808 A-6 B-6 STATION 9: -Hyattstown GPS Coordinates: 39.279798,-77.311581 Stream Right From 270, exit 22 Old Hundred Rd, Left on Old Hundred Rd, Right on Frederick Rd, Left on Hyattstown Mill Rd Stream Left From 270 to exit 22 Old Hundred Rd, Left on Old Hundred Rd, Right on Frederick Rd, Left on Prescott Rd, road changes to Hyattstown Mill Rd. Two different locations, (two cross road here). Downstream Frederick Rd @ Sta 9, Old Hundred Rd @ 270, Frederick Co 8800 blk Thurston Rd.

J Jackson Ave Sligo Creek: ADC: 5409 A-3 STATION 2: -Takoma Park GPS Coordinates: 38.982245,-76.999195 Stream Right From East West Highway and Georgia Ave take East West Highway to Philadelphia Ave, Left on Carroll Ave, Road turns into Ethan Allen Ave, Left on Jackson Ave (this section is upstream from the stream left portion). For other end of Jackson pass Jackson and turn Left on Elm Ave, Left on Heather Ave,(may be flooded) Right Sligo Creek Pkwy. Downstream See New Hampshire Ave @ Sligo Creek.

K Kemp Mill Road 12700 blk @ Northwest Branch: ADC: 5286 F-1 STATION 18: -Kensington GPS Coordinates: 39.064332,-77.028925 Stream Right From Georgia Ave and Randolph Road head East on Randolph Rd, to Kemp Mill Rd Street Flooding Target Hazards 06/04/12 updated Stream Left From Georgia Ave and Randolph Road head East on Randolph Rd, to Kemp Mill Rd on Randolph Rd, Left on Georgia Ave, Right on Layhill Rd, Right on Bonifant Rd, Right on New Hampshire Ave, Right on Randolph Downstream Columbia Pike @ Northwest Branch, 495 @ Northwest Branch, Piney Branch Rd @ county line. South end: From Randolph Rd and Georgia Ave, head South on Georgia, Left on Arcola, Left on Kemp Mill Rd.

Kendale Road 9300 blk @ Cabin Branch: ADC:5284 B-9 STATION 10: -Cabin John GPS Coordinates: 39.006902,-77.180161 Stream Right From Station 30, Left on Falls, Right on River, Left on Bradley, Left on Kendale Rd. Stream Left From Station 30 Left on Falls, Right on River, Left on Bradley, Left on Kentsdale, Left on Kendale Rd. Downstream Bradley Blvd, River Rd @Carderock Springs Dr and Sta. 10.

L Long Corner Road 26000 blk @ Scotts Branch: ADC: 4810 E-5 STATION 13: -Damascus GPS Coordinates: 39.280857,-77.161905 Stream Right From 270, take exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Right on Fieldcrest Rd, Left on Olney Laytonsville Rd, Right on Long Corner Rd. Stream Left From 270, exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Right on Fieldcrest Rd, Left on Olney Laytonsville Rd, Right on Mullinix Mill Rd, Right on Long Corner. Downstream Annapolis Rock Rd & Patuxent River (County line), see Hipsley Mill Rd @ Patuxent River. M Martinsburg Rd 19100 blk Potomac Tributary: (Check on road conditions all routes west south of Clopper Rd Could be flooded over) ADC: 4925 F-9 STATION 14: -Upper Montgomery GPS Coordinates: 39.18182,-77.466453 Stream Left From Station 30 ,turn Left on Falls, Left on river, Left at Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, road changes to Fisher Ave and back to Whites Ferry Rd, Right on Martinsburg Rd. Stream Right From Station 30 turn Left on Falls, Left on river, Left at Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, road changes to Fisher Ave and back to Whites Ferry Rd, Right on Wasche Rd, Left on Martinsburg Rd. Downstream: Potomac River just upstream from Mason Island.

Street Flooding Target Hazards 06/04/12 updated Martinsburg Rd 20300 blk Little Tributary : ADC: 4925 K-8 STATION 14: -Upper Montgomery GPS Coordinates 39.188693,-77.466677 Stream Right From Station 14 Left on Falls left on Beallsville Rd, Right onto Darnestown Rd, Left into Dickerson Power Plant complex. Stream Left From Station 14 Left on Falls left on Beallsville Rd, right on Whites Ferry Rd, Right on Wasche Rd, Right on Martinsburg Rd. Downstream: Downstream from Monocacy Aqueduct on the Canal or the Potomac River.

Massachusetts Ave at Little Falls Parkway: ADC: 5407 C-7 STATION 11: -Glen Echo GPS Coordinates 38.957405,-77.107882 Stream Right From Station 11 Right on Massachusetts Ave to Little Falls. Stream Left From Station 11 Right on Massachusetts Ave to Left on Westbard Ave to Right on Ridgefield Dr to Right on River Rd to Right on Western Ave, to Westmoreland Circle to Right on Massachusetts Ave to Little Falls Pkwy Downstream: MacArthur Blvd near Sangamore Rd. Upstream: River Rd at Willard Ave

Muncaster Rd 18300 blk @ Rock Creek: ADC: 5048 J-6 STATION 28: -Gaithersburg GPS Coordinates: 39.154222,-77.131646 Stream Right From 270 to exit 8 Shady Grove Rd north, Right on Muncaster Mill Rd, Left on Muncaster Rd. Stream Left From 270 to exit 8 Shady Grove Rd north, road changes into Airpark Rd, Right on Woodfield Rd, Right on Fieldcrest Rd, Right on Muncaster Rd. Downstream: See Muncaster Mill @ Rock Creek, .

Muncaster Mill Rd 6200 blk @ Rock Creek: ADC: 5048 K-9 STATION 28: - Gaithersburg GPS Coordinates: 39.16159,-77.123146 Stream Left From 270, exit 8 to Redland Blvd, changes to Redland Rd, Right on Needwood Rd, Left on Muncaster Mill Rd. Stream Right From 270, exit 9 370 to Metro, Shady Grove Rd North, Right on Muncaster Mill Rd. Downstream Lake Needwood.

Street Flooding Target Hazards 06/04/12 updated

Muncaster Mill Rd 5000 blk North Branch: ADC: 5165 D-2 STATION 40: -Sandy Spring GPS Coordinates: 39.16159,-77.123146 Stream Left From Norbeck Rd and Georgia Ave west on Norbeck Rd, right on Muncaster Mill Rd. Stream Right From 270, take exit 8 to Redland Blvd, changes to Redland Rd, Right on Needwood Rd, right on Muncaster Mill Rd. Downstream Lake Frank N New Cut Rd 22300 blk @ Little Seneca Creek: ADC: 4928 J-5 STATION: 29- Germantown GPS Coordinates: 39.321896,-77.156876 Stream Left From 270 take exit 16, North on Ridge Rd, Left on Frederick Rd. Stream Right From 270 take exit 16, North on Ridge Rd, Left on Skylark Rd, Left on New Cut Rd. Downstream West Old Baltimore Rd @ 13000 blk, 270 North of Exit 16, Little Seneca Lake.

New Hampshire Ave 19300 blk @ Hawlings River ADC: 5050 G-3 : STATION: 4- Sandy Spring GPS Coordinates: 39.173165,-77.020041 Stream Right From Georgia Ave and 108 head East on Olney Sandy Spring Rd, Left on New Hampshire Ave. Stream Left From Georgia Ave and 108, head North on Georgia Ave, Right on New Hampshire Ave. Downstream Haviland Mill Rd 100 blk @ Hawlings River, Mink Hollow Rd 18900 blk @ county line, Ashton Rd 1800 blk @ county line, Rocky Gorge Reservoir.

Norbeck Rd & Layhill Rd: ADC: 5166 E-1 STATION: 4- Sandy Spring GPS Coordinates: 39.120586,-77.033895 Stream Right Norbeck Rd. & Layhill Rd Stream Left From Norbeck Rd and Georgia Ave, North on Georgia Ave, Right on Olney Sandy Spring Rd, Right on Dr Bird Rd, road changes to Norwood Rd, Right on Layhill Rd. Downstream Northwest Park Golf Course pond, Northwest Branch Recreational Park ponds, 1600 blk Bonifant Rd.

Street Flooding Target Hazards 06/04/12 updated Norwood Rd 17400 blk near Quaker La: ADC: 5050 F-8 STATION: 4-Sandy Spring GPS Coordinates: 39.138197,-77.033329 Stream Left From Georgia Ave and 108 Olney Sandy Spring Rd head east on Olney Sandy Spring Rd, Right on Dr Bird Rd, road changes to Norwood Rd. Stream Right may be inaccessible due to flooding @ Norwood & Layhill Road. Downstream 200 Blk Ednor Rd, Norwood & Norbeck Road, Northwest Branch Recreational Park ponds.

O Old Carroll Ave Sligo Creek: ADC: 5408 K-3 STATION: 2- Takoma Park GPS Coordinates: 38.982602,-76.999801 Stream Right From East West Highway, and Georgia Ave head east on East West Highway to Philadelphia Ave, Left on Carroll Ave, Right on Old Carroll. Stream Left From 495 East, South on University Blvd, Right on Carroll Ave. Downstream Cherry Ave @ Sligo Creek, Garland Ave @ Sligo Creek, See New Hampshire Ave @ Sligo Creek.

Old Hundred Road 25300 Blk: ADC: 4807 F-7 STATION: 9 - Hyattstown GPS Coordinates: 39.271763,-77.339197 Stream Right From 270 to Hyattstown exit 22, Right on Old Hundred Rd (109), to just past Slate Quarry Rd. Stream Left From 270 to exit 18, Right on Clarksburg Rd, Left on Frederick Rd, Left on Comus Rd, Right on Old Hundred Rd, to just past Thurston Rd. Downstream: 9200 blk Slate Quarry Rd, 1700 blk Thurston Rd.

Old Hundred Road 25600 Blk @ Little Bennett Creek: ADC:4807 J-6 STATION: 9- Hyattstown GPS Coordinates: 39.276654,-77.337201 Stream Right From 270 to exit 22, Right on Old Hundred Rd(109) Stream Left From 270 pass exit 22, turn around on 270 and come South to exit 22, Right on Old Hundred Rd. Downstream: 9200 blk Slate Quarry Rd, 1700 blk Thurston Rd.

Street Flooding Target Hazards 06/04/12 updated P Park Valley Rd 100 blk @ Sligo Creek: ADC: 5408 J-2 STATION: 1&2- Silver Spring & Takoma Park GPS Coordinates: 38.990169,-77.008438 Stream Right From East West Hgwy, and Georgia Ave Head East on East West Hgwy, to Philadelphia Ave, Left on Piney Brach Rd, Right on Park Valley Rd. Stream Left From 495 East , South on University Blvd, Right on Piney Brach Rd, Left on Flower Ave, Right on Kennebeck Ave, (may be flooded) Right on Sligo Creek Pkwy, Left on Park valley Rd. Downstream Maple Ave @ Sligo Creek, See Carroll Ave @ Sligo Creek.

Piney Branch Rd 8300 blk @ Sligo Creek: ADC: 5408 J-1 STATION: 1- Silver Spring GPS Coordinates: 38.993766,-77.009017 Stream Right From 495 East, South on Georgia Ave, Left on Dale Dr, Left on Piney Brach Rd. Stream Left From 495 East , South on Colesville Rd, Left on Franklin Ave, Right on Flower Ave, Right on Piney Brach Rd. Downstream Park Valley Rd 100 blk @ Sligo Creek, Maple Ave 7900 blk @ Sligo Creek, See Carol Ave 7500 blk @ Sligo Creek.

Prices Distillery Rd 2300 blk @ Bennett Creek: ADC: 4808 D-2 STATION:9 - Hyattstown GPS Coordinates: 39.303296,-77.286549 Stream Right From 270 to Hyattstown exit 22, Left on Old Hundred Rd(109), Left on Frederick Rd, Right on Green Valley Rd (75), Right on Prices Distillery. Stream Left From 270 to Hyattstown Sta 9 (in Frederick county) exit 22, Left on Old Hundred Rd(109), Left on Frederick Rd, Right on Green Valley Rd(75), Right on Lewisdale Rd, Left on Hanes Rd, Left on Prices Distillery. Downstream: Green Valley Rd 2700 blk just before Prices Distillery, 3000 blk Urbana Pike (355).

R Redland Road 16800 blk @ Mill Creek: ADC: 5048 G-9 STATION: 28 - Gaithersburg GPS Coordinates: 39.141071,-77.143588 Stream Right From 270 to exit 8, veer right to Redland Rd. Stream Left From 270 to exit 8 Shady Grove Rd north, Right on Muncaster Mill Right on Redland Rd. Downstream: Lake Needwood. Street Flooding Target Hazards 06/04/12 updated

Riffle Ford Road 16800 blk @ Great Seneca Creek: ADC: 5046 H-9 STATION: 31 - Rockville GPS Coordinates: 39.131307,-77.268541 Stream Left From Darnestown Rd and 124 Quince Orchard Rd head west on Darnestown turn Right on Riffle Ford Rd. Stream Right From PSTA turn Left on Great Seneca Hgwy, Left on Richter Farm Rd, Left on Darnestown-Germantown Rd, Left on Riffle Ford Rd. Downstream 16600 Blk Darnestown-Germantown Rd, 16500 Blk Black Rock Rd, see Darnestown Rd 16300 blk @ Seneca Creek.

Riley’s Lock Road Seneca Creek: ADC: 5161 F-8 F-9 STATION: 31 - Rockville GPS Coordinates: 39.074385,-77.341326 Upstream From Station 30 Left on Falls, Left on River Left @ Seneca Rd.

River Rd 22400 blk Broad Run: (Check on road conditions all routes west south of Clopper Rd Could be flooded over) ADC: 5159 K-6 STATION:14 - Upper Montgomery GPS Coordinates: 39.072511,-77.320919 Stream Left From Station 30 Left on Falls, Left on River, Left @ Seneca Rd, road changes to Mt. Nebo, road changes to West Offutt Rd, Left on Edwards Ferry Rd, Right on River. Stream Right From Station 30 Left on Falls, Left on River, Left @ Seneca Rd, Right on Partnership Rd, Left on Whites Ferry Rd, Straight @ River Rd. Downstream Potomac River north of Edwards Ferry.

River Rd 20000 blk @ Horsepen Branch: ADC: 5160 C-7 STATION:14 – Upper Montgomery GPS Coordinates: 38.987979,-77.147625 Stream Left (may be inaccessible due to flooding at Horsepen Branch Tributary) From Station 30, Left on Falls, Left on River, Left @ Seneca Rd. Stream Right From Station 30, Left on Falls, Left on River, Left @ Seneca Rd, Right on Partnership, Left on Whites Ferry Rd, road changes to Fischer Ave, Left on West Willard Rd, Left on River. Downstream Potomac River at Vandeventer Island.

Street Flooding Target Hazards 06/04/12 updated River Rd 16500 blk @ Seneca Creek (@ Riley’s Lock Rd): ADC: 5161 F-8 STATION: 31- Rockville GPS Coordinates: 39.078675,-77.339845 Stream Left From Station 30, Left on Falls, Left on River Left @ Seneca Rd. Stream Right From 270, take Exit 10 Clopper Rd, Left on White Ground Rd, Left on Darnestown Rd, Right on Sugarland Rd, Right on Whites Ferry Rd, Left on Partnership Rd, Left on River Rd.

S Schaffer Road 16000 blk @ Little Seneca Creek: ADC: 5045 G-6 STATION: 29- Germantown GPS Coordinates: 39.150686,-77.332365 Stream Right From Station 30, Left on Falls, Left on River, Right on Esworthy Rd, Right on Seneca Rd, Left on Darnestown Rd. Right on White Ground Rd Right on Schaffer Rd. Stream Left From 270, Exit 10 Clopper Rd, Left on Schaffer Rd. Downstream See River Rd 16500 blk @ Seneca Creek.

Scott Drive 7900 blk @ Watts Branch: ADC: 5164 A-9 STATION: 3 -Rockville GPS Coordinates: 39.073646,-77.185907 Stream Left From 270 Exit 5 B Falls Road, Right on Wooton Pkwy, Left on Scott Dr. Stream Right From 270 Exit 5 B Falls Road, Right on Wooton Pkwy Left on Glen Mill Rd, Left on Viers Dr, road turns into Scott Dr. Downstream Ambleside Dr 12100 blk @ Watts Br,Glen Rd & South Glen, Piney Meetinghouse 11000 blk between Piney Meetinghouse Ct & Big Piney Way.

Skylark Road 12000 blk @ Little Seneca Creek: ADC: 4929 A-3 STATION: 29- Germantown GPS Coordinates: 39.235944,-77.248966 Stream Left From 270 North, exit 16 Ridge Rd, Left on Skylark Rd. Stream Right From 270 North, exit 16 Ridge Rd, Left on Frederick Rd, Right on Stringtown Rd, Right on Piedmont Rd, Right on Skylark Rd. Downstream Frederick Rd 22200 blk @ New cut Rd, 13000 Blk West Old Baltimore Rd, 270 over Little Seneca, Little Seneca Lake.

Sligo Creek Parkway 10800 – 10200 (University Blvd – Dennis Ave): ADC: 5286 F-5, F-6 STATION: 19- Silver Spring GPS Coordinates: 39.025955,-77.029103 Upstream Crossing From 495 go North on Georgia Ave, Right on University Blvd. Downstream Crossing From 495 go North on Georgia Ave, Right on Dennis Ave. Downstream see next entry. Street Flooding Target Hazards 06/04/12 updated

Sligo Creek Parkway 102000-09900 (Dennis Ave – Forest Glen Rd): ADC: 5286 F-7, F-8 STATION: 19- Silver Spring GPS Coordinates: 39.014174,-77.031008 Upstream Crossing From 495 head North on Georgia Ave, Right on Dennis Ave. Downstream Crossing From 495, North on Georgia Ave, Right on Forest Glen Rd. Downstream see next entry.

Sligo Creek Parkway 9900 – 9300 (Forest Glen Rd – Colesville Rd): ADC: 5286 E-8, F-9, G-9 STATION: 19 &16- Silver Spring GPS Coordinates: 39.007242,-77.019034 Upstream From 495, North on Georgia Ave, Right on Forest Glen Rd. Downstream Crossing From 495, South on Colesville Rd. Downstream see next entry.

Sligo Creek Parkway 9300 – 8700 (Colesville Rd – Wayne Ave): ADC: 5286 G-9, H-9, H-10 STATION: 16 & 1- Silver Spring GPS Coordinates: 38.999656,-77.010626 Upstream Crossing From 495, South on Colesville Rd. Downstream Crossing From 495 East, South on Georgia Ave, Left on Dale Dr, Left on Wayne Ave. Downstream see next entry.

Sligo Creek Parkway 8700 – 8500 (Wayne Ave – Piney Branch Rd): ADC: 5286 J-10, 5408 J-1 STATION: 1 – Silver Spring GPS Coordinates: 38.999656,-77.010626 Upstream Crossing From 495 East, South on Georgia Ave, Left on Dale Dr, Left on Wayne Ave. Downstream Crossing From 495 East, South on Georgia Ave, Left on Sligo Ave, Left on Piney Brach Rd. Downstream see next entry.

Sligo Creek Parkway 8500 – 7400 (Piney Branch Rd – Carroll Ave): ADC: 5408 K1, K-2, J-2, K-2, K-3 STATION: 2- Takoma Park GPS Coordinates: 38.982622,-76.99985 Upstream Crossing From 495 East, South on Georgia Ave, Left on Sligo Ave, Left on Piney Brach Rd. Downstream Crossing From 495 East, South on Georgia Ave, Left on Sligo Ave, Right on Philadelphia Ave Left on Carroll Ave. Downstream see next entry.

Street Flooding Target Hazards 06/04/12 updated Sligo Creek Parkway 7400 - 1100 (Carrol Ave – New Hampshire Ave): ADC: 5408 K-3, 5409 A-4, B-4 STATION: 2- Takoma Park GPS Coordinates: 38.98147,-76.998349 Upstream Crossing From 495 East, South on Georgia Ave, Left on Sligo Ave, Right on Philadelphia Ave Left on Carroll Ave. Downstream Crossing From 495 East, South on New Hampshire Ave. Downstream PG County - East West Hgwy 1500 blk @ Sligo Creek, Riggs Rd 6700 blk @ Sligo Creek.

Southlawn La 15300 blk @ Rock Creek: ADC:5164 K-4 STATION: 3 -Rockville GPS Coordinates: 39.106693,-77.121037 Stream Right From Georgia Ave and Norbeck Rd, head west on Norbeck, Right on Gude Dr, Right Southlawn La. Stream Left From Georgia Ave and Norbeck Rd, head west on Norbeck, right on Muncaster Mill Rd, Left on Avery Rd, Right on Southlawn. Downstream See Avery Rd 14900 blk @ Rock Creek, Norbeck Rd 5500 blk just past Avery, See Baltimore Rd 2300 blk @ Rock Creek.

Sundown Road 5300 blk @ Hawlings River ADC:4931 D-6 STATION: 17 -Laytonsville GPS Coordinates: 39.214461,-77.125439 Stream Right From 270, take exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Right on Fieldcrest Rd, Left on Olney Laytonsville Rd, Right on Sundown Rd. Stream Left North on Georgia Ave, through Brookville, Left on Damascus Rd, Left on Sundown Rd. Downstream See Zion Rd 21700 blk @ HawlingsRiver, Georgia Ave 21400 blk, Brighton Dam Rd 1900 blk. T Ten Mile Creek Rd ADC: 4928 A-7 STATION: 29- Germantown GPS Coordinates: 39.211469,-77.310481 From 270, take exit 18 Clarksburg Rd South, Right West Old Baltimore Rd, left on Ten Mile Creek Rd. Downstream Little Seneca Lake.

Street Flooding Target Hazards 06/04/12 updated

Tucker Lane 1700Blk: ADC: 5051 D-6 STATION: 4- Sandy Spring GPS Coordinates: 39.154642,-76.98049 Stream Left From Georgia Ave and 108 Olney Sandy Spring Rd, head east on Olney Sandy Spring Rd road changes into Ashton Rd, Right on Tucker La. Stream Right From Norbeck Rd and Georgia Ave head North on Georgia Ave, Right on Olney Sandy Spring Rd, Right on New Hampshire Ave, Left on Tucker La. Downstream Rocky Gorge Reservoir.

W Warfield Road 7900 blk @ Goshen Branch Tributary: ADC: 4930 E-9 STATION: 17- Laytonsville GPS Coordinates: 39.194647,-77.160373 Stream Right From 270, exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Left on Warfield Rd. Stream Left From 270, exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Left on East Village Ave, Right on Plum Creek Dr, Right on Warfield Rd. Downstream Brink Rd near Goshen Rd, Brink Rd @ Whightman Rd, 18900 Blk Frederick Rd.

Wayne Ave 100 blk @ Sligo Creek: ADC: 5408 J-1 STATION: 1- Silver Spring GPS Coordinates: 38.999625,-77.010605 Stream Right From 495 East , go South on Georgia Ave, Left on Dale Dr, Left on Wayne Ave. Stream Left From 495 East , South on Colesville Rd, Left on Franklin Ave, Right on Flower Ave, Right on Wayne Ave. Downstream See Piney Branch Rd 8300 blk @ Sligo Creek, See Piney Branch Rd @ Sligo Creek.

West Old Baltimore Rd 16100 blk @ Bucklodge Branch: ADC: 4927 F-5 STATION: 29- Germantown GPS Coordinates: 39.219547,-77.334212 Stream Left From 270, exit 18 Clarksburg Rd North, Left on Frederick Rd, Left on Comus Rd, Left on Slidell Rd, Right on West Old Baltimore Rd. Stream Right From 270, exit 18 Clarksburg Rd North, Left on Frederick Rd, Left on Comus Rd, Left on Peach Tree Rd, Left on West Old Baltimore Rd. Downstream 16600 Blk Barnesville Rd, 20200 Blk Bucklodge Rd, White Ground Rd near Schaffer Rd.

Street Flooding Target Hazards 06/04/12 updated

West Old Baltimore Road 15300 blk @ Ten Mile Creek: ADC: 4928 A-6 STATION: 29- Germantown GPS Coordinates: 39.212795,-77.310612 Stream Left From 270, exit 18 Clarksburg Rd South, Right on West Old Baltimore Rd. Stream Right Left on Falls, From 270, exit 18 Clarksburg Rd North, Left on Frederick Rd, Left on Comus Rd, Left on Shiloh Church Rd, Left on West Old Baltimore Rd. Downstream Near the end of Ten Mile Creek Rd, Little Seneca Lake.

West Old Baltimore Road 13800 blk @ Little Seneca Creek: ADC: 4928 G-6 STATION: 29- Germantown GPS Coordinates: 39.213588,-77.288517 Stream Left From 270, exit 16 Ridge Rd North, Left on Frederick Rd, Left onWest Old Baltimore Rd. Stream Right From 270, exit 18 Clarksburg Rd South Left on West Old Baltimore Rd. Downstream 270 just north of exit 16, Little Seneca Lake.

White Ground Road 19100 blk: ADC: 5045 G-4 STATION: 29- Germantown GPS Coordinates: 39.153791,-77.340993 Stream Right From 28 and 118 head west on Darnestown Rd. Right on White Ground Rd. Stream Left From 270, Exit 10 Clopper Rd, Right on Clopper Rd, road changes into White Ground Rd. Downstream 16100 blk Schaffer Rd, 16100 blk Darnestown Rd @ Seneca Creek

Whites Store Road 16700 blk @ Seneca Creek Tributary: ADC: 5045 E-1 STATION: 29 - Germantown GPS Coordinates: 39.130546,-77.346657 Stream Left From 270, exit 10 Clopper Rd, Right on Clarksburg Rd, Left on Barnesville Rd, Veer Left onto Bucklodge Rd, Right on Whites Store Road. Stream Right From 270, exit 10 Clopper Rd, Right on Clarksburg Rd, Left on Barnesville Rd, Left on Peach Tree Rd, Left on Whites Store Road. Downstream White Ground Rd near Schaffer Rd, See Darnestown Rd @ Seneca Creek.

Wightman Road 9100 Blk: ADC: 4929 K-10 STATION: 8 - Gaithersburg GPS Coordinates: 39.188584,-77.189332 Stream Right From 270, exit 11A Montgomery Village Ave, Right on Wightman Rd. Stream Left From 270, exit 11A Montgomery Village Ave, Right on Montgomery Village Ave, Right on Arrowhead, Left on Rothbury, Left on Goshen, Left on Wightman Rd. Downstream Montgomery Village Ave near Shadow Oak, Golf Course Pond.

Street Flooding Target Hazards 06/04/12 updated

Woodfield Road 23000 blk @ Great Seneca Creek: ADC: 4930 B-3 STATION: 17- Laytonsville GPS Coordinates: 39.185985,-77.150835 Stream Left From 270, take exit 9 370 toward Metro, Shady Grove Rd north road changes to Airpark Rd, Right on Woodfield Rd. Stream Right From 270, take exit 9 370 toward Metro, Shady Grove Rd north, road changes to Airpark Rd, Right on Woodfield Rd, Right on Brink Rd, Left on Laytonsville Rd, Left on Hawkins Creamery Rd, Left on Woodfield Rd. Downstream See Huntmaster @ Great Seneca Creek.

Z Zion Road 20800 blk @ Hawlings River: ADC: 4931 F-6 STATION: 17- Laytonsville GPS Coordinates: 39.198488,-77.099261 Stream Right From 270, exit 9 370 toward Metro, Shady Grove Rd north, Right on Muncaster Mill Rd, Left on Muncaster Rd, Right on Olney Laytonsville Rd, Left on Brookville Rd, Left on Zion Road. Stream Left From 270, exit 9 370 toward Metro, Shady Grove Rd north, Right on Muncaster Mill Rd, Left on Muncaster Rd, Left on Olney Laytonsville Rd, Right on Sundown Rd, Right on Zion Road. Downstream 21400 Blk Georgia Ave, See Brighton Dam Rd @ Hawlings River.