Marquette-Joliet Bridge
Marquette-Joliet Bridge carries the M5 motorway over the Mississippi (Upper River) near to Newfield.
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 major road over the canal.
| Mississippi - Black Junction | 63.44 miles | |
| La Crosse Dual Bridge | 62.84 miles | |
| Genoa Lock No 8 | 43.88 miles | |
| Black Hawk Bridge | 27.72 miles | |
| Harpers Ferry Lock No 9 | 13.89 miles | |
| Marquette-Joliet Bridge | ||
| Mississippi - Wisconsin Junction | 4.21 miles | |
| Guttenberg Lock No 10 | 20.95 miles | |
| Mississippi - Turkey Junction | 27.76 miles | |
| Mississippi - Platte Junction | 49.31 miles | |
| Dubuque Lock No 11 | 55.07 miles | |
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Wikipedia has a page about Marquette-Joliet Bridge
The Marquette–Joliet Bridge is a bridge crossing the Mississippi River, connecting Marquette, Iowa and Prairie du Chien, Wisconsin. Local residents refer to the bridge as the Prairie Bridge or the Marquette Bridge; both terms are used equally.
The structure is an automobile bridge about three lanes wide, and is designed to accept Jersey barriers for deck service. It is located between the Black Hawk Bridge, about 40 miles (64 km) to the north upstream, and the Dubuque-Wisconsin Bridge some 60 miles (97 km) south. The bridge carries U.S. Route 18 from Iowa to Wisconsin.
The design of the bridge is a cable-supported tied arch bridge, with the two ends of the arch terminating at abutments located in the middle of the river.
In the winter after its opening, the bridge developed several cracks and had to be closed for repair. In more recent years, the approach on the Iowa side of the bridge was rebuilt as part of the U.S. 18 bypass that was built around Marquette and McGregor, Iowa.
