Route 146 highlighted in red, Route 146A in blue | ||||
| Route information | ||||
| Maintained by RIDOT | ||||
| Length | 16.24 mi (26.14 km) | |||
| Major junctions | ||||
| South end | ||||
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| North end | ||||
| Location | ||||
| Country | United States | |||
| State | Rhode Island | |||
| Counties | Providence | |||
| Highway system | ||||
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Route 146 is a 16.24-mile (26.14 km) state highway in the U.S. state of Rhode Island, maintained by the Rhode Island Department of Transportation (RIDOT). Running along a northwest–southeast axis, it links the cities of Providence, Woonsocket, and Worcester, Massachusetts.
The southern terminus of Route 146 is located at Interstate 95 (I-95) in Providence. The entire route is now a freeway as of 2026. The northern terminus is located at the Rhode Island–Massachusetts state line in Millville, where it transitions into Massachusetts Route 146 and continues northbound towards the Massachusetts Turnpike in Millbury and I-290 in Worcester.
Route 146 begins in downtown Providence at I-95 northbound exit 38 (there is no direct access from I-95 southbound; access to Route 146 is via surface streets). Locally it is known as Old Louisquisset Pike, and is a narrow four-lane freeway with no shoulders and a simple Jersey barrier median separating oncoming traffic. The first two interchanges are partial access only, with Route 7 (Douglas Avenue) and Route 246 (Charles Street) and provide access between Route 146 and I-95 via surface streets for where there is no direct access (southbound I-95 to northbound Route 146, and southbound Route 146 to northbound I-95). The first complete interchange is a diamond interchange with Branch Avenue, followed by a partial interchange with Route 15 (no northbound entrance to Route 146). The next interchange, with Route 246 a second time, provides the access missing from the Route 15 interchange.
At this point, now in North Providence the "Old Louisquisset Pike" designation leaves to follow Route 246, and the Route 146 freeway becomes the Eddie Dowling Highway. Near the southern boundary of Lincoln, there is a southbound-only offramp (no other access) with Route 246, while the northbound side abuts Olney Pond in the Lincoln Woods State Park. Two partial cloverleaf interchanges follow with Twin River Road and Route 123/Breakneck Hill Road. The next interchange northbound is a right-in/right-out terminus of Sherman Avenue, while southbound has access to Route 246 here. A single onramp provides Wilbur Road an entrance to northbound Route 146 next, then an interchange with Route 116, followed shortly by a full cloverleaf interchange with I-295 and the southern terminus of Route 99, which is a short connector freeway to the city of Woonsocket. Route 99 access is a northbound exit/southbound entrance only, the other directions need to use Sayles Hill Road for access.
Route 146 continues through the southern part of the town of North Smithfield, Rhode Island. A major renovation project was completed in 2026 that removed a former at-grade intersection at Sayles Hill Road (featuring the lone traffic light on the stretch). As a result of the renovation, Route 146 is now a continuous highway complete with a flyover bridge over Sayles Hill Road. Access to Sayles Hill Road and the businesses on Route 146 are now accessible via new frontage roads in both directions. The frontage roads on both sides are unnumbered exits.
At a reconstructed interchange with Route 146A (which provides full access in both directions effective in 2026) the freeway resumes, now called the North Smithfield Expressway, which has three interchanges in the town: Route 104, Pound Hill Road, and a complex interchange with School Street and Route 146A that also provides access to Route 5 and Route 102. Approximately two miles (3.2 km) north of this interchange, the freeway continues into Massachusetts as Massachusetts Route 146, the Worcester–Providence Pike.
This section needs expansion. You can help by adding missing information. (June 2012) |
Prior to the construction of the two freeway sections, Route 146 used present-day Route 246 and Route 146A. The only part of the original alignment still in use is the section between I-295/Route 99 and Route 146A in the southern part of North Smithfield.
In May 2019, Route 146 received mile-based exit numbers. Previously, the exits were unnumbered.
RIDOT erected two toll gantries in 2019, one in Lincoln and one in North Smithfield, for truck-only electronic toll collection. Those gantries have been shut off since September 2022.
In May 2019, the Rhode Island Senate announced that the state would borrow $200 million to reconfigure I-95 through Downtown Providence, near the southern terminus of Route 146. The replacement of the Providence Viaduct with twin bridges alleviated the bottleneck created by traffic entering I-95 from US Route 6 (US 6) and Route 10, and exiting towards Route 146 and US 44. The project cost $250 million. This project was completed in 2025.
In 2022, RIDOT began work on an overpass at Sayles Hill Road, which featured the only set of traffic signals along the route in Rhode Island. The intersection was notorious for car accidents and was deemed unsafe. The project also included constructing frontage roads and bus bays, and rebuilding the interchange with Route 146A at North Smithfield. Work was completed in 2026.
The entire route is in Providence County.
| Location | mi | km | Exit | Destinations | Notes |
|---|---|---|---|---|---|
| Providence | 0.00 | 0.00 | – | Southern terminus; exit 37A-B-C on I-95 the New Service Road To I-95 Northbound | |
| 0.30 | 0.48 | 1A | Southbound exit and northbound entrance | ||
| 1.40 | 2.25 | 1B | Branch Avenue | Signed as exit 1 northbound | |
| North Providence | 2.50 | 4.02 | 2 | No northbound entrance | |
| Lincoln | 4.00 | 6.44 | 4A | Southbound exit only | |
| 4.50 | 7.24 | 4B | Twin River Road | Signed as exit 4 northbound | |
| 5.00 | 8.05 | 5 | |||
| 6.40 | 10.30 | 6 | Signed for Route 246 southbound, Sherman Avenue northbound | ||
| 7.40 | 11.91 | 7 | Southbound exit 7 provides access to Route 246 via collector–distributor lanes shared with exits 8A-B | ||
| 8.50 | 13.68 | 8A-B | Signed as exits 8A (north) and 8B (south); exits 18A-B on I-295 | ||
| 8.80 | 14.16 | 8C | Northbound exit and southbound entrance; accessed from the collector–distributor lanes shared with exits 8A-B | ||
| 9.00 | 14.48 | 9 | Reservoir Road | Southbound exit and entrance; right-in, right-out | |
| 9.70 | 15.61 | — | Access via frontage roads in both directions. Frontage roads are unnumbered. | ||
| North Smithfield | 10.50 | 16.90 | |||
| — | Sayles Hill Road | Southbound exit and entrance; access via exit 10 | |||
| 10.60 | 17.06 | 10 | Southern terminus of Route 146A | ||
| 12.10 | 19.47 | 11 | |||
| 13.40 | 21.57 | 13 | Pound Hill Road – North Smithfield | Access to Industrial Drive and CVS Distribution Center | |
| 14.30 | 23.01 | 14 | |||
| 16.24 | 26.14 | – | Continuation into Massachusetts | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
| Location | North Smithfield–Woonsocket-Burrillville |
|---|---|
| Length | 5.9 mi (9.5 km) |
Route 146A is a numbered state highway running 5.9 miles (9.5 km) in Rhode Island. It was designated as Route 146 before the construction of the North Smithfield Expressway. The road follows a former stagecoach path through historic Union Village in North Smithfield. This road was known as "the Great Road". The northern end of the road crosses the state line near Buxton Street at Uxbridge, Massachusetts. This section was known as Ironstone, after good quality bog iron ore found near here.
It runs for 5.9 miles (9.5 km) through North Smithfield on Route 146 to Massachusetts state line at Route 146A using Eddie Dowling Highway, Smithfield Road, Great Road, Victory Highway, North Main Street and Quaker Highway.
Major intersections
The entire route is in Providence County.
| Location | mi | km | Destinations | Notes | |
|---|---|---|---|---|---|
| North Smithfield | 0.0 | 0.0 | Southern terminus; exit 10 on Route 146 | ||
| Woonsocket | 1.6 | 2.6 | |||
| North Smithfield | 3.9 | 6.3 | Exit 14 on Route 146 | ||
| Burrillville | 5.2 | 8.4 | Southern terminus of concurrency with Route 5; northern terminus of Route 102 | ||
| 5.3 | 8.5 | Northern terminus of concurrency with Route 5 | |||
| 5.9 | 9.5 | Continuation into Massachusetts | |||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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