- A37 between Thone Lane roundabout, Yeovil and A303, Somerset (Grid ref ST528200)
- A37 between East Coker Rd and A30, Somerset (Grid ref ST550148)
- A37 between A359 and Thorne Lane roundabout, Somerset (Grid ref ST550170)
- A37 between A303 and B3153, Somerset (Grid ref ST553290)
- A37 between A30 and A359, Somerset (Grid ref ST554163)
- A37 between Somerset boundary and East Coker Rd, Yeovil, Somerset (Grid ref ST561122)
- A37 between B3153 and Stone Lane, Somerset (Grid ref ST573320)
- A37 between Stone Lane and A361, Somerset (Grid ref ST600362)
- A37 between B3122 and A4, Bristol, City of (Grid ref ST600715)
- A37 between A356 and Dorset boundary, Dorset (Grid ref ST607026)
- A37 between A4174 and B3122, Bristol, City of (Grid ref ST608705)
- A37 between LA boundary and A4174, Bristol, City of (Grid ref ST611690)
- A37 between Staunton Lane and Bath and North East Somerset boundary, Bath and North East Somerset (Grid ref ST612680)
- A37 between B3130 and Staunton Lane, Bath and North East Somerset (Grid ref ST617650)
- A37 between A368 and B3130, Bath and North East Somerset (Grid ref ST617640)
- A37 between A39 and A368, Bath and North East Somerset (Grid ref ST619600)
- A37 between B3135 and B3139, Somerset (Grid ref ST622480)
- A37 between B3139 and A39, Somerset (Grid ref ST623520)
- A37 between A361 and A367, Somerset (Grid ref ST624453)
- A37 between A361 and A371, Somerset (Grid ref ST626413)
- A37 between A367 and B3135, Somerset (Grid ref ST626470)
- A37 between A361 and A361, Somerset (Grid ref ST626427)
- A37 between A371 and A361, Somerset (Grid ref ST627420)
- A37 between A39 and Somerset boundary, Somerset (Grid ref ST628550)
- A37 between LA boundary and A362, Bath and North East Somerset (Grid ref ST628553)
- A37 between A362 and A39, Bath and North East Somerset (Grid ref ST629560)
- A37 between A352 North Street Junction and A356 Junction, Dorset (Grid ref SY649939)
- A37 between A35 Monkey Jump Roundabout and A352 North Street Junction, Dorset (Grid ref SY677918)