State Highways 100-179
| Route | South and West Terminus | North and East Terminus | Comments |
| 100 | SR 102; City of Gloucester | MA State Line; Town of Burrillville | |
| 101 | CT State Line; Town of Foster | US 6; Town of Scituate | Passes over Jerimoth Hill, the highest point in RI |
| 102 | SR 2; Town of North Kingston | SR 146A; Town of North Smithfield | |
| 103 | I-195; City of East Providence | MA State Line; Town of Warren | |
| 104 | US 44; Town of North Providence | SR 122; City of Woonsocket | |
| 108 | Point Judith; Town of Narragansett | SR 138; Town of South Kingston | |
| 110 | US 1; Town of South Kingston | SR 138; Town of South Kingston | |
| 112 | US 1; Town of Charlestown | SR 138; Town of Richmond | |
| 114 | SR 138; Town of Middletown | SR 112; City of Woonsocket | Turns into the Wamponag Trail in East Providence through Barrington |
| 116 | SR 104; Town of Smithfield | SR 114; Town of Cumberland | |
| 117 | SR 14; Town of Coventry | US 1; City of Providence | |
| 117A | SR 117; City of Warwick | SR 117; City of Warwick | |
| 122 | SR 114; City of Pawtucket | MA State Line; City of Woonsocket | |
| 123 | SR 146; Town of Lincoln | MA State Line; Town of Cumberland | |
| 126 | I-95; City of Providence | SR 122; City of Woonsocket | |
| 128 | US 6;City of Johnston | SR 5; City of Johnston | |
| 136 | SR 114; Town of Bristol | MA State Line; Town of Warren | Main strip through Bristol and Warren; Metacom Ave. |
| 138 | CT State Line; Town of Exeter | MA State Line; Town of Tiverton | Includes the Jamestown, Newport, and the Sakonnet River Bridges. Would have been made into I-895 a highway across Aquidneck Island |
| 138A | SR 138; Town of Middletown | SR 238; City of Newport | |
| 146 | I-95; City of Providence | MA State Line; Town of North Smithfield | In Providence its is the Eddie Dowling Hwy. North of that it is the N. Smithfield Expwy. In Lincoln it turns into a divided Highway |
| 146A | SR 146; Town of North Smithfield | MA State Line; Town of North Smithfield | |
| 152 | SR 114 ?; City of East Providence | MA State Line; City of East Providence | Probably ends at Pawtucket Ave. (SR 114) But a Henderson Bridge highway sign claims that Broadway St. south of SR 114 is also 152 so the terminus is sketchy. |
| 165 | CT State Line; Town of Exeter | SR 3; Town of Exeter | |
| 177 | SR 77; Town of Tiverton | MA State Line; Town of Tiverton | |
| 179 | SR 77; Town of Tiverton | SR 81; Town of Little Compton | |
| 195 (Dead) | I-295; City of Johnston | I-95; City of Providence | Decommissioned in Mid 90s is now US 6 and SR 10. It was planned to string I-195 across the other end of I-95. Its highway signs was an interstate sign with grayscale colors. |
State Highways 1-99 State Highways 216-403