UPPER ASSABET RIVER - SUMMER

Transcription

1 UPPER ASSABET RIVER - SUMMER NORTHERN SECTION SITES Office (23 Bradford Street, West Concord) ABT-033 (Rte 62 West Concord) ABT-312 (Mill Road, Westborough) HOP-011 (Hop Brook at Otis St., Northborough) ABT-301 (Rte 9, Westborough) ABT-237 (Robin Hill Road, Marlborough) NTH-009 (Whitney Ave., Berlin) SOUTHERN SECTION Upper Assabet Summer Directions: Pg.1 UPDATED 2017

2 OARS Office: 23 Bradford Street 2 nd Floor Rear, West Concord From Rte 2, take Rte 62 west towards West Concord. At the fork (facing the 99 Restaurant), bear right onto Commonwealth Ave. Cross the railroad tracks and take a left onto Bradford Street. Turn in to the parking lot in front of building #23 and park near the front. Our office door is near the front of the building. Second floor, end of the hall on the left. CALL THE OFFICE IF THE DOOR IS NOT OPEN ABT-033 Route 62, West Concord: METER READINGS ONLY From the OARS office, go back out Bradford Street and turn right (east) on Commonwealth Ave. The site is on the right, before you cross the river, about 1.1 mi. from the office. Pass the Dunkin Donuts and park in the lot for the dry cleaners and Pet Source. In-situ sampling is done from the bridge. Upper Assabet Summer Directions: Pg.2 UPDATED 2017

3 ABT-312 Mill Road, Westborough From ABT-033, go west on Rte 62, bear right onto Laws Brook Road in front of the 99 Restaurant. Take right on to Commonwealth Ave. At the rotary take the fourth spur onto Rte 2 West. Take the exit for Rte 495 South. From Rte 495 take exit 23 to Rte 9 West. Go west along Rte 9 about 3.5 miles and take the exit for Rte 135 (Milk Street) East. Go 0.7 mi. then take a right onto Fisher St. Take a left onto Mill Road and park just past the bridge over the Assabet. Access the river on the downstream side of the bridge, across the grassy embankment. The gage is on the downstream right bridge abutment. The sampling site is on the downstream side of the bridge. The cross-section for estimating Channel Flow Status is just downstream of the end of the bridge abutment, where the river widens. Upper Assabet Summer Directions: Pg.3 UPDATED 2017

4 HOP-011 Hop Brook, Northborough From ABT-312 go back along Mill Road and take a left onto Fisher Street then a right on Otis Street. Go north on Otis Street crossing Rte 9 and continue 0.7 mi. to the small bridge over Hop Brook (below Smith Pond). Pull into the lot behind Armeno Coffee Roasters. The staff gage and sampling site are about 50 yds. downstream of the bridge along the rock wall. The hydraulic control for the gage is the rocky riffle just about even with the low section in the bank. This is also the cross-section for assessing Channel Flow Status. Upper Assabet Summer Directions: Pg.4 UPDATED 2017

5 ABT-301 Route 9 bridge, Westborough From HOP-011 go back along Otis St. to Rte 9. Turn left onto Rte 9 East. Drive east about 0.8 mi. to the just before the bridge over the Assabet. Park at the edge of the parking lot near R.G. Shakour just before the bridge. Walk along the inside edge of the guardrail to close to the river and then down to the river through the brush. Sample from the river below the bridge on the upstream side. Meter readings can be done from the bridge. This site is downstream from the Westborough WWTP. Parking PARK Access along the edge of the guardrail; cut down to the stream near the bridge. Watch out for poison ivy! (As of Sept 2017) Upper Assabet Summer Directions: Pg.5 UPDATED 2017

6 ABT-237 Robin Hill Street, Marlborough From ABT-301 continue east on Rte 9 for 0.1 miles, take the exit for Rte 135 west. At Rte 20 in Northborough, turn right on Rte 20 and take the second left onto Hudson Street. Drive about 1.6 mi., bear right to stay on Hudson Street, which turns into Robin Hill Road. Just before you get to the bridge, turn left into the small dirt parking area for a canoe put-in. For in-situ sampling, walk back out to the road and sample from the bridge; for bottle sampling try going in at the upstream side of the bridge, staying near the edge. (The canoe access has been very muddy.) This site is downstream from the Marlborough WWTP. Entrance to parking area Upper Assabet Summer Directions: Pg.6 UPDATED 2017

7 NTH-009 North Brook, Berlin From ABT-237, go back along Robin Hill Road/Hudson Road. Take a right onto Solomon Pond Road, crossing over Rte 290. At the rotary go ½ of the way around the rotary and take South Street. Take a left onto Pleasant Street (which turns into Whitney Street). Just before the first bridge (over the main outlet) park in the dirt pull-out on the right. Access the stream on the upstream, right side of the bridge (poison ivy!) to read the staff gage and take bottle samples. In-situ sampling can be done from the bridge. The hydraulic control for the gage is the riffle under and downstream of the bridge. The Channel Flow Status cross-section is downstream of the bridge. Upper Assabet Summer Directions: Pg.7 UPDATED 2017

8 Return to OARS Office From NTH-009, go back Pleasant Street and take a right onto South Street. At the rotary take the second spur to River Road. Take the on-ramp to Rte 290 East. Take Rte 495 North to Rte 2 East. Go east on Rte 2 to the rotary in Concord. Take the first spur onto Commonwealth Ave. At the junction, take a left staying on Commonwealth Ave., and a right onto Bradford Street. Do not bring the samples upstairs! Let me know you re here and we ll check in the samples in the parking lot. Upper Assabet Summer Directions: Pg.8 UPDATED 2017