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Pentagon Island

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Pentagon Island
Location Map ( geo)
Pentagon Island flyover from Eastgate - Geograph - 1837303.jpg
Pentagon Island flyover from Eastgate
Cameraicon.png View gallery (1)
Highway Authority
Junction Type
Roads Joined
A52, A61

Pentagon Island is a major, partially grade separated junction in Derby where the A52 now meets the revised A61. The main route through the junction, the A52, is only grade separated one way. Traffic on the eastbound carriageway, trying to enter the city, must use the roundabout, which is signal controlled.

The Pentagon Island is also Junction 1 of Derby's inner ring road junction numbering system, for reasons which remain unclear.


The roundabout was originally not grade separated at all, as the stretch of the A52 from the Inner Ring Road to the Pentagon opened in 1972, but the stretch from the Pentagon to the Borrowash Bypass was not built until later. This meant the original course of the A52, Nottingham Road, remained in use. This could, for obvious reasons, not be grade separated immediately.

Only with the construction of the rest of the A52 between the Pentagon and the Borrowash Bypass did the Pentagon become grade separated at all.

Oddly, for reasons which are as yet unknown, the Pentagon Island was only ever planned to be grade separated to the current configuration. Grade separation in both directions was never planned.


Route To Notes


Spondon, Nottingham, Loughborough (A6)


Chesterfield, Heanor (A608), Ilkeston (A609), Mansfield (A38)


City Centre, Station No HGV's


Pentagon Island
Related Pictures
View gallery (1)
Pentagon Island flyover from Eastgate - Geograph - 1837303.jpg
Other nearby junctions
Junctions on the A52
Knutton Lane Roundabout • Nelson Place • Joiners Square • Bucknall Crossroads • Cellarhead • Calton Moor • Waterside Retail Park Roundabout • Markeaton Island • Eastgate Junction • Pentagon Island • Sandiacre Interchange • Bardills Roundabout • Bramcote Island • Priory Roundabout • University Interchange (QMC) • Nottingham Knight • Wheatcroft Island • Gamston Island • Saxondale Roundabout • Barrowby Interchange • Gainsborough Corner • Spittlegate • Somerby Hill Roundabout • Threekingham Roundabout • Donington Fork • Bicker Bar Roundabout • Liquorpond Street Roundabout • Burton Corner Roundabout • Sutton-on-Sea Mini Roundabout • Mablethorpe
Junctions on the A61
Pentagon Island • Mansfield Rd Rdbt • Little Eaton Rdbt • Watchorn Roundabout • Wingfield Rd • Clay Cross • Brimington Rdbt • Meadowhead • Lowfield • Granville Sq
Sheffield IRR: 1 Cutlers Gate • 2 Park Sq • 3 Granville Sq • 4 Bramall Ln • 5 Moore St • 6 University Sq • 7 Shalesmoor • 8 Corporation St • 9 Bridgehouses • 10 Savile St
Shalesmoor • Tankersley • Birdwell • Alhambra Rdbt • Athersley South Fork • Sandal Fork • Stourton • Tunstall • Hunslet Int • Hunslet • Woodpecker • Sheepscar • Moortown Rdbt • Harewood • Otley Rd • Spacey Houses Rdbt • Prince of Wales Rdbt • New Park • Ripon Bypass Rdbt • Baldersby • Busby Stoop Rdbt • South Kilvington

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