Historic Bridges
of the United States
Mississippi River I-74 Bridge
Scott County
,
Iowa
and
Rock Island County
,
Illinois
Overview
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TopoZone
Terraserver USA
Facts
Overview
Pair of suspension bridges over the Mississippi River on I-74 between Bettendorf and Moline
Status
Open to traffic
History
Northbound bridge built 1935; southbound built 1960; both rehabilitated 1975
Design
Wire suspension
Dimensions
Length of largest span: 739.9 ft.
Total length: 5,016.4 ft.
Deck width: 23.3 ft.
Vertical clearance above deck: 18.0 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+41.52200, -90.51330
(decimal degrees)
41°31'19" N, 90°30'48" W
(degrees°minutes'seconds")
Inventory numbers
IA 47280
(Iowa bridge number)
IL 081-9901
(Illinois bridge number)
IL 081-9902
(Illinois bridge number)
BH 14376
(Bridgehunter.com ID)
Inspection
Average daily traffic
(as of 2005)
20,300
Categories
Built 1935
(1,165)
Built during 1930s
(5,130)
Functionally obsolete
(5,063)
Illinois
(820)
Iowa
(2,130)
Mississippi River
(87)
NR-eligible
(2,567)
Open
(21,590)
Owned by state
(6,524)
Rock Island County, Illinois
(7)
Scott County, Iowa
(12)
Span length 500-1000 feet
(234)
State line crossing
(145)
Suspension
(151)
Total length over 2500 feet
(337)
Comments
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