The existing interchange of US 30 and PA 113 provides a westbound on-ramp and eastbound off-ramps, as a partial interchange. The existing interchange of US 30 and Norwood Road provides a westbound off-ramp and an eastbound on-ramp, as a partial interchange.
EXISTING CONDITIONS
CONCEPTUAL DESIGN ALTERNATIVES
Under the Conceptual Design phase, eight potential alternatives are being evaluated for the PA 113 and Norwood Road Interchanges:
NORWOOD ROAD AND PA 113 ALTERNATIVE 1A, May 2017
- US 30 Mainline is 4 lanes in each direction on existing US 30 centerline
- US 30 Eastbound and Westbound have weave lane (5th lane) between Norwood Road and PA 113 ramps
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 1B, MAY 2017
- US 30 Mainline is 4 lanes in each direction with US 30 shifted north
- US 30 Eastbound and Westbound have weave lane (5th lane) between Norwood Road and PA 113 ramps
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 1C, MAY 2017
- US 30 Mainline is 4 lanes in each direction with US 30 shifted south
- US 30 Eastbound and Westbound have weave lane (5th lane) between Norwood Road and PA 113 ramps
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 2A, MAY 2017
- US 30 Mainline is 3 lanes in each direction with a Collector-Distributor (CD) Road between Norwood Road and PA 113
- US 30 Eastbound and Westbound have weave lane with CD road
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 2B, MAY 2017
- US 30 Mainline is 3 lanes in each direction with US 30 shifted north and a Collector-Distributor (CD) Road between Norwood Road and PA 113
- US 30 Eastbound and Westbound have weave lane with CD road
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 2C, MAY 2017
- US 30 Mainline is 3 lanes in each direction with US 30 shifted south and a Collector-Distributor (CD) Road between Norwood Road and PA 113
- US 30 Eastbound and Westbound have weave lane with CD road
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 3, MAY 2017
- US 30 Mainline is 3 lanes in each direction
- Removes Norwood Road ramps
- Completes PA 113 Interchange as a Partial Diamond
- New Westbound Off and Eastbound On ramps
- US 30 Westbound Ramps Intersection is signalized at PA 113
NORWOOD ROAD AND PA 113 ALTERNATIVE 4, MAY 2017
- US 30 Mainline is 3 lanes in each direction
- Removes Norwood Road ramps
- Completes PA 113 Interchange as a Diverging Diamond Interchange (DDI)
- Eliminates the need for left-turning vehicles traveling onto or off interstate to cross the paths of approaching through vehicles
- Two synced traffic signals for PA 113 Eastbound and Westbound through movements
- Traffic signal for US 30 Westbound off-ramp left turn at PA 113
- Traffic signal for US 30 Eastbound off-ramp left turn at PA 113
- Traffic signal for US 30 Eastbound off-ramp right turn at PA 113
ENVIRONMENTAL RESOURCES
Some of the significant environmental features of the section include, a trail with adjoining property, two parks, potential historic properties, a school, five streams and eight wetlands. The Struble Trail is a multiuse recreational trail that crosses under US 30 along a former railroad between Norwood Road and the East Branch of Brandywine Creek. County owned land associated with the trail abuts both sides of the highway. Township owned parkland is located just south of US 30 at the Norwood Road interchange (Struble Trail & Kardon Park) and north of the highway a Bell Tavern Road (Bell Tavern Park). There are numerous older buildings found throughout the corridor that may have historic significance and will require evaluation. They are mainly situated along US 30 between Norwood Road and PA 113, and along PA 113. At the western limits of the section are Downingtown Area School District athletic fields and the Downingtown Middle School abuts US 30 just beyond the limits. The East Branch of the Brandywine Creek is the main watercourse in the section. There are two unnamed tributaries of the creek located in the vicinity of Norwood Road and two more located near the western section limits. All but one of the eight section wetlands is found between the Struble Trail and the western section limits, with most of them abutting US 30. The wetlands’ vegetation ranges from predominantly herbaceous cover to predominate tree cover.
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