|Location Map ( geo)|
|Via:||Welwyn Garden City|
|Distance:||3.5 miles (5.6 km)|
|Met:||B653, A1, B195, A1|
|Now part of:||A6129, A1000, B195|
|Route outline (key)|
The road started at the A1/B653 junction at Stanborough, just north of Hatfield. The road headed northeast across the River Lea to reach Welwyn Garden City itself. It skirted the southern edge of the town to cross the East Coast Main Line and then headed north, parallel to the line, through the eastern suburbs.
Presently the road turned sharply left to cross the railway again before skirting the northern edge of the town centre. It headed southwestwards to return to the A1, which it met barely a mile north of its southern end.
Growth of the New Town of Welwyn Garden City put paid to the B190. The eastern side of the road became part of the new A1000 in the 1960s and it wasn't long before the remainder of the road lost the B190 number as well. The southern section of the road is now the A6129 whilst the northern is the B195. Indeed, following construction of the A1(M), what was the A1 here is now the B197.