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Highway 539A
Route information
Maintained by the Ministry of Transportation of Ontario
Length	5.8 km (3.6 mi)
Existed	1958–present
Major junctions
Southeast end	Highway 539 in River Valley
Northwest end	Highway 805 at the Sudbury–Nipissing boundary
Location
Country	Canada
Province	Ontario
Counties	Nipissing District
Towns	West Nipissing, River Valley
Highway system
Ontario provincial highways Current Former 400-series
← Highway 539 → Highway 540

Secondary Highway 539A, commonly referred to as Highway 539A, is a provincially maintained secondary highway in the Canadian province of Ontario, located within Nipissing District. Commencing at a junction with Highway 539 in the community of River Valley, the highway formerly extended northwesterly for 13.1 kilometres (8.1 mi) to a point near where the Sturgeon River crosses the boundary between Nipissing and Sudbury District at Glen Afton; at this point, the roadway turned northward and continues as Highway 805. The route was later truncated, and now extends for only 5.8 kilometres, with the remainder of the former route having been renumbered as an extension of Highway 805.

Route description

Highway 539A begins at a junction with its parent route, Highway 539. Drivers on Highway 539 must turn to remain on that route, while southbound Highway 539A becomes eastbound Highway 539 to Field. Northbound, drivers round a long curve and enter the community of River Valley. The highway crosses the railbed of a former rail spur, exits the community and crosses the Temagami River. The highway gradually curves to the northwest and hugs the bank of the Sturgeon River.

History

Although Highway 539 was designated in 1956, and the road that is now Highway 539A existed, the route was not designated at that time. The route first appears on the 1958 Official Road Map of Ontario as a short spur of Highway 539 into River Valley. In 1962, Highway 805 was designated within Sudbury District. In order to connect it with the rest of the provincial highway network, Highway 539A was extended northwest to the Nipissing – Sudbury district boundary. It still follows this same routing today.

Major intersections

The following table lists the major junctions along Highway 539A, as noted by the Ministry of Transportation of Ontario. The entire route is located in Nipissing District. 

Location	km	mi	Destinations	Notes
River Valley	0.0	0.0	Highway 539
West Nipissing	5.8	3.6	Highway 805	Sudbury–Nipissing boundary
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

1. ^ Ministry of Transportation of Ontario (2010). "Annual Average Daily Traffic (AADT) counts". Archived from the original on July 6, 2011. Retrieved January 10, 2014.
2. ^ Ontario Road Map (Map). Cartography by C.P. Robins. Ontario Department of Highways. 1957. § M32.
3. ^ Ontario Back Road Atlas (Map). Cartography by MapArt. Peter Heiler. 2010. p. 105. § K17. ISBN 978-1-55198-226-7.
4. Ontario Road Map (Map). Cartography by C.P. Robins. Ontario Department of Highways. 1956. § M–N32.
5. "Ontario Secondary Roads Now Designated 500, 600". Vol. 112, no. 33, 119. The Globe and Mail. February 4, 1956. p. 4. Two new Ontario road numbers appear on the province's 1956 official road map which will be ready for distribution next week. The new numbers are the 500 and 600 series and designate hundreds of miles of secondary roads which are wholly maintained by the Highways Department. More than 100 secondary roads will have their own numbers and signs this year. All of these secondary roads were taken into the province's main highways system because they form important connecting links with the King's Highways
6. Ontario Road Map (Map). Cartography by C.P. Robins. Ontario Department of Highways. 1958. § M32.
7. Ontario Road Map (Map). Cartography by C.P. Robins. Ontario Department of Highways. 1962. § M32.
8. Ontario Road Map (Map). Cartography by C.P. Robins. Ontario Department of Highways. 1963. § M32.

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Secondary highways Secondary highways 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 518 519 520 522 522B 523 524 525 526 527 528 528A 529 529A 531 532 533 534 535 536 537 538 539 539A 540 540A 540B 541 541A 542 542A 544 545 546 547 548 549 550 550B 551 552 553 554 555 556 557 558 559 560 560A 562 563 564 565 566 567 568 569 570 571 572 573 574 575 577 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 599 600 601 602 603 604 605 606 607 607A 608 609 611 612 613 614 615 616 617 618 619 621 622 623 624 625 626 627 628 630 631 632 633 634 636 637 638 639 640 641 642 643 644 645 646 647 650 651 652 654 655 656 657 658 661 663 664 665 667 668 670 671 672 673 By district Algoma Cochrane Kenora Manitoulin Nipissing Parry Sound Rainy River Sudbury Thunder Bay Timiskaming
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List Category WikiProject

• Ontario secondary highways
• Roads in Nipissing District