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A low-water crossing (also known as an Irish bridge or Irish Crossing, causeway in Australia, low-level crossing or low-water bridge) is a low-elevation roadway traversing over a waterbody that stays dry above the water when the flow is low, but is designed to get submerged under high-flow conditions such as floods.
Fords may be impassable during high water. A low-water crossing is a low bridge that allows crossing over a river or stream when water is low but may be treated as a ford when the river is high and water covers the crossing. The word ford is both a noun (describing the water crossing itself) and a verb (describing the act of crossing a ford).
[10] [11] The highway then crosses over Hoffstadt Creek on a 2,340-foot (710 m) steel truss bridge that sits 370 feet (110 m) above the valley floor; it is the longest of 13 bridges on SR 504. [ 12 ] [ 13 ] The bridge also marks the western extent of the "blast zone," where trees were felled during the 1980 eruption of Mount St. Helens ...
The slide and the water dammed up behind a bridge, then broke through, making the creek about 50 yards (46 m) or meters wide instead of the normal two or three. The mass of trees , boulders , and mud forced at least fifteen houses off their foundations , one man riding his home about 500 feet (150 m) downstream.
It provides access from the coastal plain, just 5 kilometres (3.1 mi) wide in this area, to the Paluma Range, which rises some 1,000 metres (3,300 ft) above the Big Crystal Creek floodplain. The concrete arch bridge over Little Crystal Creek is a prominent feature of the landscape in this area, and is located about halfway along the Mount Spec ...
Road construction necessitated construction of 29 bridges, the most difficult of which was the bridge over Bixby Creek, about 13 miles (21 km) south of Carmel. Upon completion, the Bixby Creek Bridge was 714 feet (218 m) long, 24 feet (7.3 m) wide, 260 feet (79 m) above the creek bed below, and had a main span of 360 feet (110 m). [ 41 ]
TDOT plans to remove the designation of US 64 from the Ocoee Scenic Byway, and build a new four lane route, due to the high volumes of commercial traffic passing through the area. Multiple methods have been proposed, including a route on the south side over the river and existing route, a route over nearby Little Frog Mountain, and a tunnel. [3]
Royal Engineers construct a Bailey bridge in Italy, September 1943. Wood planks are being laid over the stringers to construct the roadbed. The success of the Bailey bridge was due to the simplicity of the fabrication and assembly of its modular components, combined with the ability to erect and deploy sections with a minimum of assistance from heavy equipment.