Claudelands Bridge

Claudelands Bridge

Claudelands rail and road bridges.
Coordinates 37°47′04″S 175°17′00″E / 37.784418°S 175.283432°E / -37.784418; 175.283432Coordinates: 37°47′04″S 175°17′00″E / 37.784418°S 175.283432°E / -37.784418; 175.283432
Carries 2 lanes of Claudelands Rd
Crosses Waikato River
Locale Hamilton, New Zealand
Maintained by Hamilton City Council
Preceded by Victoria Bridge, Hamilton
Followed by Whitiora Bridge
Characteristics
Design Warren truss
Material Steel
Total length 436 feet (133 m)
Height 103 feet (31 m) river bed to road
Longest span 132 feet (40 m)
Number of spans 5
Piers in water 2 x 3 (until 1906 2 x 2)
Clearance below 82 feet (25 m)
History
Designer Office of John Blackett
Construction begin 1880
Opened 1883 rail bridge, converted to road 1968
Statistics
Daily traffic 11,000
Designated 5 September 1985
Reference no. 4201

Claudelands Bridge is a dual-lane truss road bridge over the Waikato River, joining Claudelands with Hamilton Central. In 1968 it was converted from the old railway bridge,[1] which had been completed about the end of July 1883.[2] The road bridge was given a Category 2 listing in 1985.[3]

Around 11,000 vehicles a day use the bridge.[4] The bridge is the second busiest CBD route for cyclists, with 135 in peak hours in 2009 and a rising trend.[5] Bus routes 14 and 15 cross the bridge.[6]

A new railway bridge, opened on 19 September 1964,[7] a few metres downstream, replaced the old with a 7-span, 143 m (469 ft) pre-stressed concrete box girder bridge. The spans are supported by reinforced concrete piers, resting on in-situ cast piles. The bridge, built by Wilkinson and Davies Construction Co Ltd[8] (involved in a 1959 contract law case and deregistered in 1967),[9] is about 20 ft (6.1 m) lower than the road bridge,[7] being 18 m (59 ft) above the normal river level. It was the first bridge in the country to be stressed with a 100-ton Freyssinet cable.[8]

Old railway bridge history

The bridge was designed in 1880 and the £5,519 contract let on 3 November 1881 to W. Sims.[10] Although Sir George Grey turned the first sod of the railway extension at Claudelands in 1879,[11] there seems to have been little publicity for that or the bridge, with only minimal mention in 1883.[12] Ironwork for the bridge was reported as shipped in 1881.[13] However, it is not clear whether the end of Sir George's premiership, the new Prime Minister, John Hall, or possibly some other cause, resulted in progress being very slow,[2] but the contract was re-let to J. R. Stone on 18 September 1882 for £4,312 13s 6d, plus the £1,376 cost (the £5,688 total would now be equivalent to just under $1m)[14] of the four cast cylinders from A & G Price. The bridge was completed about the end of July 1883, but not used until the Hamilton-Morrinsville railway opened on 1 October 1884.[10]

It was originally tested with a 117-ton load. To cope with greater loads, an extra cylinder was added to the original two on each side of the main channel, the 2 new cylinders being ordered from S Luke & Co for £2,354 in 1906, and the new deck from A & T Burt Ltd for £5,872 in 1907. Further strengthening was designed in 1934 to cope with the 135-ton K-Class locomotives.[10]

There was pressure for a footbridge from before the railway was opened,[15] A commission was appointed to investigate in 1906.[16] With the widening and strengthening of the bridge, it was possible to build a footbridge in 1908,[17] though there were complaints about the lack of lighting[18] and cycling was banned.[19] The footbridge was renewed in 1936.[20]

There was soon also pressure to remove the railway from the centre of the CBD. In 1912 the Borough Council suggested the line could be lowered. A 1938 plan was stopped by war in 1939. The National Roads Board then promoted it and, in September 1959, the Ministry of Works started the scheme to put the railway in a tunnel and replace the old bridge with one at the tunnel level.[7]

Utilities

From 1970 to 1974 33kV cables were laid across the bridge. Further wiring was done in 1988.[21]

References

  1. ↑ "Bridges - Hamilton City Council". www.hamilton.govt.nz. Retrieved 2016-08-18.
  2. 1 2 Zealand, National Library of New. "PUBLIC WORKS STATEMENT, BY THE MINISTER FOR PUBLIC WORKS, THE HON. WALTER WOODS JOHNSTON, 3rd JULY, 1883. (Appendix to the Journals of the House of Representatives, 1883-01-01)". paperspast.natlib.govt.nz. p. 35. Retrieved 2016-08-18.
  3. ↑ "Railway Bridge (Former): Heritage New Zealand". www.heritage.org.nz. Retrieved 2016-08-18.
  4. ↑ "Hamilton City Council Traffic Counting Data 2011-2015" (PDF). www.hamilton.govt.nz. Retrieved 2016-08-18.
  5. ↑ "INFORMATION REQUEST REPORTS - CYCLE COUNT NUMBERS HAMILTON CITY COUNCIL" (PDF). www.hamilton.govt.nz. 2015. Retrieved 2016-08-18.
  6. ↑ "Hamilton routes map". Busit!. 2014.
  7. 1 2 3 "Hamilton's Underground Railway". Kete Hamilton.
  8. 1 2 "IPENZ Engineering Heritage: Hamilton Rail Bridge". www.ipenz.org.nz. Retrieved 2016-08-18.
  9. ↑ "All companies in WILKINS AND DAVIES CONSTRUCTION LTD FISHER INTERNATIONAL BUILDING 18 WATERLOO QUADRANT%2C AUCKLAND | COYS". coys.co.nz. Retrieved 2016-08-18.
  10. 1 2 3 "Historical notes on Hamilton Railway Bridge". nzetc.victoria.ac.nz. Retrieved 2016-08-18.
  11. ↑ Zealand, National Library of New. "NORTH ISLAND TRUNK RAILWAY. (New Zealand Herald, 1885-04-16)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  12. ↑ Zealand, National Library of New. "The Waikato Times AND THAMES VALLEY GAZETTE. (Waikato Times, 1883-06-02)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  13. ↑ Zealand, National Library of New. "THE PUBLIC WORKS STATEMENT. (New Zealand Herald, 1881-08-10)". paperspast.natlib.govt.nz. Retrieved 2016-08-20.
  14. ↑ "Inflation calculator - Reserve Bank of New Zealand". www.rbnz.govt.nz. Retrieved 2016-08-18.
  15. ↑ Zealand, National Library of New. "WAIKATO WHISPERINGS (Observer, 1883-05-05)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  16. ↑ Zealand, National Library of New. "CLAUDELANDS FOOT BRIDGE COMMISSION. (Waikato Times, 1906-03-23)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  17. ↑ Zealand, National Library of New. "Claudelands Footbridge. (Waikato Argus, 1908-12-07)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  18. ↑ Zealand, National Library of New. "CLAUDELANDS' AFFAIRS. (Waikato Argus, 1909-04-26)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  19. ↑ Zealand, National Library of New. "CLAUDELANDS BRIDGE. (New Zealand Herald, 1928-08-07)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  20. ↑ Zealand, National Library of New. "FOOT-WAY ON HAMILTON RAILWAY BRIDGE BEING REPLACED Welded steel sections being placed in position beside the railway track on the bridge over the Waikato River at Hamilton. The work is being carried out on Sunday when the foot-bridge is closed. (New Zealand Herald, 1936-04-02)". paperspast.natlib.govt.nz. Retrieved 2016-08-18.
  21. ↑ Gilson, Chris (2005). Wiring up the Waikato. WEL Networks.
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