Question: the A595 road was a single carriageway which went through what English county?

Context paragraphs:
A1094 road: The A1094 is an A road in the English county of Suffolk.  It is around 7 mi in length.  The road runs from a junction off the A12 trunk road at Friday Street in Benhall to Aldeburgh on the North Sea coast.  The road is single carriageway throughout.

Holmrook: Holmrook is a linear village in the English county of Cumbria.  It lies along the A595 road on the west banks of the River Irt.  The B5344 road connects it to Drigg, with its railway station less than two miles to the west.

Carlisle Castle: Carlisle Castle is situated in Carlisle, in the English county of Cumbria, near the ruins of Hadrian's Wall.  The castle is over 900 years old and has been the scene of many historical episodes in British history.  Given the proximity of Carlisle to the border between England and Scotland, it has been the centre of many wars and invasions.  Today the castle is managed by English Heritage and is open to the public.  The castle until recently was the administrative headquarters of the former King's Own Royal Border Regiment now county headquarters to the Duke of Lancaster's Regiment and a museum to the regiment is within the castle walls.

A595 road: The A595 is a primary route in Cumbria, in Northern England that starts in Carlisle, passes through Whitehaven and goes close to Workington, Cockermouth and Wigton.  It passes Sellafield and Ravenglass before ending at the Dalton-in-Furness by-pass, in southern Cumbria, where it joins the A590 trunk road.  The road is mostly single carriageway, apart from in central Carlisle, where it passes the castle as a busy dual carriageway road named Castle Way, and prior to that as Bridge Street and Church Street, where it passes close to the McVitie's or Carr's biscuit factory.  The Lillyhall bypass is also dual carriageway.

A601(M) motorway: The A601(M) is a motorway in Lancashire, England.  It is 1.3 mi long, and meets the M6 at Junction 35.  It is a unique motorway within the United Kingdom as it has a dual carriageway section leading north from Junction 35 of the M6, with a single carriageway section (the only single carriageway section with motorway status in the United Kingdom) leading south, where it terminates at a T junction on a B road.  The A601(M) is not the A601 under motorway restrictions, as is the usual explanation for such a classification in the UK.  The A601 itself is the Derby inner ring road, over 100 mi away.

A6 road (Northern Ireland): The A6 road in Northern Ireland runs from the Belfast to Derry, via Antrim.  Mostly single carriageway, there is a short dual carriageway section forming the Toome bypass.  Towards Derry, there is also a short section of dual carriageway at Altnagelvin.  This is one of Northern Ireland's most important arterial routes, as the road runs between its two largest cities and urban areas.  Between Randalstown and Derry the road forms part of European route E16.

Ginninderra Drive: Ginninderra Drive is a major arterial road in the northern suburbs of Canberra, the capital city of Australia.  The road provides an important access corridor to facilities including the Australian Institute of Sport, Canberra Stadium, the University of Canberra and Belconnen Town Centre.  It is built to a dual carriageway standard carrying two or three traffic lanes in each direction for most of its length, with a speed limit of 80 km/h .  A short section from Charnwood to Dunlop is single carriageway with a speed limit of 60 km/h .  The road follows a generally westward alignment from an intersection with Mouat Street in the suburb of Lyneham.  A grade separated interchange is provided at Gungahlin Drive.  The road passes over Lake Ginninderra north of Belconnen Town Centre and continues towards Kingsford Smith Drive in the West Belconnen area.  Beyond Tillyard Drive in the suburb of Charnwood, the road becomes single carriageway until its terminus in Dunlop, a developing suburb generating comparatively light traffic.  Original plans for the road included a direct connection from Mouat Street to Northbourne Avenue via a corridor between Southwell Park and the Yowani Golf Course however there are no plans to construct this section, evidenced by the removal of the corridor from the planning scheme in 1998.

Beckermet: Beckermet is a village, civil parish and post town in the English county of Cumbria, located near the coast between Egremont and Seascale.  Historically within Cumberland, it is served by Braystones railway station and is less than a mile west of the A595 road.  It is around 2 miles (3 km) from the Sellafield nuclear plant which may be seen from the higher parts of the village.

Single carriageway: A single carriageway (British English) or undivided highway (American English) is a road with one, two or more lanes arranged within a single carriageway with no central reservation to separate opposing flows of traffic.

Expressway S69 (Poland): Expressway S69 or express road S69 (in Polish "droga ekspresowa S69") was a major road in Poland, which was supposed to run from Bielsko-Biała to the border with Slovakia at Zwardoń/Skalité, where it would connect with Slovak motorway D3.  In the original plans, from Bielsko-Biała to Żywiec the road was to be a dual carriageway, and the remaining part to the border with Slovakia a single carriageway only (with terrain reserves for construction of second carriageway in future).  Since August 2016, the S69 is part of expressway S1.

Supporting paragraphs: A595 road Carlisle Castle
Answer: Cumbria