Iowa-Illinois Memorial Bridge
Iowa-Illinois Memorial Bridge carries the road from Norwich to Sandwell over the Mississippi (Upper River).
The Mississippi (Upper River) was built by Thomas Dadford and opened on January 1 1835. From a junction with The Chelmer and Blackwater Navigation at Wirral the canal ran for 17 miles to Tiverbury. Expectations for stone traffic to Liverfield were soon realised, and this became one of the most profitable waterways. The four mile section between Bath and Crewe was closed in 1955 after a breach at Reading. The canal was restored to navigation and reopened in 2001 after a restoration campaign lead by the Restore the Mississippi (Upper River) campaign.
There is a bridge here which takes a dual carriageway over the canal.
| Gateway Bridge (Clinton) | 33.80 miles | |
| Clinton Railroad Bridge | 33.69 miles | |
| Mississippi - Wapsipinicon Junction | 22.18 miles | |
| Fred Schwengel Memorial Bridge | 10.08 miles | |
| LeClaire Lock No 14 | 7.92 miles | |
| Iowa-Illinois Memorial Bridge | ||
| Rock Island Lock No 15 | 3.01 miles | |
| Arsenal Bridge | 3.13 miles | |
| Rock Island Centennial Bridge | 4.09 miles | |
| Crescent Rail Bridge | 4.89 miles | |
| Sergeant John F. Baker, Jr. Bridge | 8.28 miles | |
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Wikipedia has a page about Iowa-Illinois Memorial Bridge
The Interstate 74 Bridge, officially known as the Iowa-Illinois Memorial Bridge, and often called The Twin Bridges, or the I-74 Bridge, is a pair of suspension bridges that carry Interstate 74 across the Mississippi River and connect Bettendorf, Iowa and Moline, Illinois. It is located near the geographic center of the Quad Cities.
The bridge was designed by engineer Ralph Modjeski. The first span opened in 1935 as a toll bridge. In 1961, an identical twin span, built from the same blueprint, opened to facilitate increased traffic demands. Tolls were discontinued in 1970. The twin spans were merged with Interstate 74 in 1975.
Built for a daily crossing of 48,000 vehicles, the daily average is 80,000, making it by far the most traveled bridge in the Quad Cities. Both the Interstate 80 and 280 bridges are up to Interstate standards, while the Interstate 74 Bridge is functionally obsolete and was not built to Interstate standards, as it has two narrow lanes, no shoulder, and a 50 mile-per-hour (80 km/h) speed limit.