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Haggerty Ctr. is near the bottom;
parking is just south.
The Joseph F. Haggerty Jr. Education Center is located on the grounds of the Freylinghuysen Arboretum on East Hanover Avenue in Morris County, NJ, not far from downtown Morristown.
From The East Hanover Avenue Entrance
Enter the Freylinghuysen Arboretum from East Hanover Avenue (about 215 feet west of the Morris County Library traffic light), turning south. Proceed up the narrow drive (15 mph speed limit!) alert for pedestrians for about 850 feet. Haggerty Center is ahead on your left. Continue past the building and turn left into the parking area (about 450 feet). There is a rear entrance to the building.
Take I78 East to exit 29 (signed I287 to US 202 US 206 I80/Morristown/Sommerville) for I287 North. This is a two-lane exit: from the center lane of I78 East, take the right-hand ramp (for the exit) ending up in the left lane of the exit ramp. After about 1/2 mile, the ramp for I287 North branches to the left. Take the ramp for I287 North. After joining the main highway, follow the directions immediately below for From the South Via I287. Exit 36b will be about 15.7 miles Northbound on I287.
Take I287 North to Exit 36b for CR 510 West/Lafayette Avenue. Remain on the right off the ramp. About 700 feet after you join Lafayette, another ramp joins on the right. Move into the lane from that ramp as soon as it is safe to do so. About 410 feet after the second ramp joins, the right lane becomes a right-turn ramp at an intersection (signed for Cedar Knolls). Take that ramp onto Ridgedale Avenue north. Proceed about 0.8 miles to the traffic light at East Hanover Avenue (CR 650). Turn right (eastbound) onto East Hanover Avenue and proceed for about 1/2 mile, moving into the right lane as soon as you cross over I287, to the traffic light for the Morris County Library. Continue straight through the light for another 215 feet and turn right into the Freylinghuysen Arboretum driveway. Follow the directions above for From the East Hanover Avenue Entrance.
Take CR 510 East into Morristown. You will enter on the west ("southwest") corner of Morristown Green, with the Green on your left. (Traffic moves counterclockwise around the Green.) Bear left to the far corner of the Green. Then bear right to exit the Green straight ahead (diagonally opposite where you entered the Green) crossing Dumont Place onto Morris Street. Proceed as directly below for From Morristown Green.
Take Morris Street north from the “northeast” corner of Morristown Green (crossing Dumont Place). Proceed about 0.4 miles to the railroad overpass, and another 0.1 mile to the traffic light and left turn for Ridgedale Avenue. Turn left onto Ridgedale Avenue and proceed another 0.9 miles, bearing right, to the traffic light for Hanover Avenue (photo above). Turn right onto Hanover Avenue (CR 650). Turn right (eastbound) onto East Hanover Avenue and proceed for about 1/2 mile, moving into the right lane as soon as you cross over I287, to the traffic light for the Morris County Library. Continue straight through the light for another 215 feet and turn right into the Freylinghuysen Arboretum driveway. Follow the directions above for From the East Hanover Avenue Entrance.
Take CR 510 West. Approaching the traffic light for Morristown Airport, move into the right-turn lane. Do not turn into the airport; instead continue straight for about 230 feet, then turn right onto the entrance ramp for NJ 24 West (signed NJ 24 West to I287). Follow the directions below for From the South and West Via NJ 24. Exit 1a will be about 1.2 miles ahead.
Take the GSP North. Approaching the tolls at mile 143, keep to the right. (If you use one of the right three toll lanes, move left exiting the tollboth area to avoid exit 142a.) Proceed about 830 feet past the toll booths and take the two-lane, right-hand ramp for exit 142b. Take the ramp to the local lanes of I78 West and follow the directions immediately below for From the South and East Via I78. Exit 48b will be about 3.6 miles west on I78.
Take I78 West using the local ("All Exits") lanes. At exit 48b, bear right for the NJ 24 (all lanes turn onto the ramp). Follow the directions immediately below for From the South and East Via NJ 24; exit 1a is about 9.5 miles north and west on NJ 24.
(NJ 24 West travels generally northwest.) Take NJ 24 West to exit 1a. Take the ramp for exit 1a for CR 511 South/Morristown. When the ramp ends, remain in the right lane. Continue under the overpass; past it the right lane becomes a right-turn ramp (signed Morris Plains/E. Hanover Ave. Take this turn and proceed for about 0.3 miles. The Arboretum entrance is on your left.
Take NJ 10 East. After the exit ramp for Dryden Way, move to the right. Proceed about 0.4 miles to the traffic light for Ridgedale Avenue. Turn right onto Ridgedale and proceed about 1.2 miles, moving to the left approaching the traffic light for Cedar Knolls Road. Turn left and proceed on Cedar Knolls Road. After about 0.7 miles, Cedar Knolls road turns left at an intersection. Do not turn; continue forward on Park Avenue for about 0.3 miles to the traffic light for Whippany Road. Turn right on Whippany Road and follow the directions below for From the East Via Whippany Road. The interchange with NJ 24 is about 1100 feet ahead.
Take NJ 10 West to Whippany Road to the traffic light at Troy Hills Road. Continue through the light, moving to the right. At the next light, take the far-side jughandle ramp for Whippany Road. Proceed as immediately below; the Hanover Avenue turn is about 2.2 miles westbound on Whippany Road.
Take Whippany Road westbound to the interchange with NJ 24. Before the overpass, a ramp (exit 1a) joins Whippany Road as an extra lane on the right. Move into that lane. Beyond the underpass, this lane becomes the right turn ramp for Hanover Avenue. Turn right onto Hanover Avenue and proceed as immediately below; the Arboretum entrance is approximately 0.3 miles westbound on Hanover Avenue.
Take Hanover Avenue westbound to the entrance to Freylinghuyen Arboretum, a left turn, about 280 feet before the traffic light for the Morris County Library (on the right). Follow directions above for From the East Hanover Avenue Entrance.
From the King George Road interchange (exit 36) to the West (lower numbers) I287 is the shorter route; from King George Road to the East (higher numbers) NJ 24 is the shorter route. Which will be faster will depend somewhat on traffic.
Via I78 West to I287 North: Take I78 West to exit 29 for I287 North. Approaching the exit, move to the right lane. Two lanes exit for I287. About 1/2 mile after the exit ramp begins, the ramp for I287 North branches to the right. Take that ramp for I287 North, then follow the directions above for From the South Via I287. Exit 36b will be about 15.4 miles northbound on I287.
Via I78 East to NJ 24 West: Take I78 East. The road divides into express and local lanes. Bear right for the local lanes (signed Local/East I78 to GSP/Newark/All Exits) and continue on the local lanes to exit 48 for NJ 24. Bear LEFT for the exit to NJ 24. Proceed north/west on NJ 24 as described above for From the South and East Via I78.
Take I280 Westbound to its end, where it joins I80 Westbound as the outer lanes, as described immediately below. Follow the directions immediately below for From the East Via I80.
Take I80 West to exit 43, signed I287 to US 46/Morristown/Mahwah. This ramp becomes an outer roadway for I80 West which runs for several miles. From the start of the ramp, proceed about 2.1 miles to the fork for exit 43a, I287 North/South. Take the left fork for I287 South/Morristown. The ramp joins I287 South on the left. Follow the directions below for From the North Via I287. Exit 36 is about 5.1 miles south on I287.
Take I80 East to exit 43 (right-hand exit). Proceed about 770 feet on the ramp to a fork for I287 North and I287 South. Take the right-hand fork for I287 South and proceed as immediately below for From the North Via I287. Exit 36 will be about 5 miles South on I287.
Take I287 South to exit 36, signed CR510/Morris Ave/Lafayette Ave/Ridgedale Ave. This is a two-lane exit; take the rightmost lane. Proceed about 700 feet along this ramp and exit to the right on the fork signed for Ridgedale Avenue. Proceed about 270 feet bearing right to the traffic light and turn right onto Ridgedale Avenue northbound. Proceed about 2/3 of a mile to the traffic light at East Hanover Avenue (CR 650). Turn right (eastbound) onto East Hanover Avenue and proceed for about 1/2 mile, moving into the right lane as soon as you cross over I287, to the traffic light for the Morris County Library. Continue straight through the light for another 215 feet and turn right into the Freylinghuysen Arboretum driveway. Follow the directions above for From the East Hanover Avenue Entrance.
For much of its length in northern New Jersey, US 202 parallels I287,and the fastest route is to get onto I287 as soon as possible and continue the trip from there. But if I287 is unavailable for some reason, US 202 provides alternate or bypass routes.
From the North: Take US 202 South to the traffic light for Sylvan Way. Continue straight for 0.6 miles bearing right at the light for NJ 10 for a left turn using the far-side jughandle ramp. Follow the directions above for From the West Via US 10. Ridgedale Avenue is about 1.2 miles from the outlet of the jughandle ramp.
From the South: Take US 202 North into Morristown. The northbound and southbound sides diverge; the northbound side continues on Market Street to the Morristown Green. Turn right onto the Green. Turn left at the first opportunity (around the Green) and bear right to go straight across Dumont Street. Follow the directions above for From Morristown Green.
As US 46 crosses New Jersey, it parallels I80, closely in some places and at a distance in others. In general, I80 will be the better route, but if I80 is unavailable for some reason US 46 may be an alternate, though not the best. From US 46, there are several reasonable routes south to the Frelinghuysen Arboretum:
Take US 202 South, following the directions above.
Take US 202 NORTH for about 0.3 miles from the center of the US 46—US 202 intersection to the entrance to I287 South (right-hand turn).
Take US 202 south for 0.4 miles. At this point, it turns right onto Littleton Road. Instead, continue straight on Parsippany Road for about 1.6 miles, to the second intersection for N Jefferson Road, this one on the right. Turn right on N Jefferson Road and proceed roughly south for about 2.3 miles to its end on Cedar Knolls Road. Turn left and see the directions above for From the West Via NJ 10, whose route you have just joined.