of 3 x , a and a span. Two piers were in the river on concrete cylinders sunk below normal water-level. The others were reinforced concrete on concrete piling and the deck and trusses of Australian hardwood. Complaints had been made about a single-lane bridge since before it was built, so, when the new NIMT bridge was built, the Main Highways Board leased the old one and added decking. The conversion was completed in early November 1931, allowing 2-way traffic. Single lane traffic was reinstated for a few months in 1936 to allow a truss on the 1921 bridge to be replaced. Traffic was still increasing. In 1935 traffic between Ohinewai and Ngāruawāhia averaged 660 vehicles a day. By 1938 it had risen to 1,329. 1956 bridge On 13 March 1953 a contract was let for a new steel truss bridge. An April 1955 photo shows two piers in the river. On 20 August 1955 the centre span was placed and a 1955 photo shows the bridge almost finished. The first car drove over the bridge on 19 October 1956. By 2008 17,392 vehicles a day were crossing the bridge. No more recent counts have been published, but, after the opening of the Taupiri link in 2013, traffic on the Great South Rd in Ngāruawāhia, was 12,467 in 2015, suggesting that traffic on the bridge has been reduced by about 5,000 vehicles a day. Listed buildings Ngāruawāhia's history is reflected in the number of its Listed Buildings – Category 1 Turangawaewae House built in 1912–1919 as Te Kauhanganui building in a fusion of Arts and Crafts and traditional Māori styles; Category 2 – Band Rotunda, Delta Tavern, Doctor's House, former bakery, former Flourmill Store, former Māori pā – Puke i Ahua, Grant's Chambers, 13 Lower Waikato Esplanade, 2 Old Taupiri Rd, Pioneer Gun Turret, Riverdale, St Paul's Church, War Memorial. Community Māori King Movement Ngāruawāhia is home to the Kīngitanga. The first Māori King, Pōtatau Te Wherowhero, was crowned at Ngāruawāhia in 1858 and was living there when he died two years later. The current Māori King is Tūheitia Paki; he obtained the throne at Tūrangawaewae Marae immediately following his mother's passing in 2006. Marae Ngāruawāhia has two marae affiliated with the Waikato Tainui hapū of Ngāti Mahuta and Ngāti Te Weehi: Tūrangawaewae and its Mahinaarangi or Turongo meeting house, and Waikeri-Tangirau Marae. Tribal Huk A local gang is Tribal