Historic Bridges
of the United States

Main Street Bridge

Duval County, Florida

Overview
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Photos 

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View from southwest

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View from southeast

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South approach

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South portal

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Lift tower

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Close-up of truss

Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Vertical lift bridge over St. Johns River on US 1 (Main Street) in Jacksonville
Location
Jacksonville, Duval County, Florida
Status
Open to four-lane traffic
History
Built 1941
Design
Vertical lift Warren through truss
Dimensions
Length of largest span: 365.0 ft.
Total length: 1,680.2 ft.
Vertical clearance above deck: 16.0 ft.
Also called
John T. Alsop, Jr. Bridge (official name)
Approximate latitude, longitude
+30.32203, -81.65851   (decimal degrees)
30°19'19" N, 81°39'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/436693/3354653 (zone/easting/northing)
USGS topographic map
Jacksonville
Inventory number
BH 12363 (Bridgehunter.com ID)
Inspection (as of 09/2006)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 43.5 (out of 100)
Average daily traffic (as of 2006)
32,500

Categories 

Built 1941 (216)
Built during 1940s (1,917)
Duval County, Florida (9)
Flared (421)
Florida (197)
Functionally obsolete (5,793)
Jacksonville, Florida (9)
Movable (858)
Navigable waterway (1,260)
Open (22,291)
 Owned by state (6,768)
Span length 250-500 feet (597)
St. Johns River (6)
Through truss (5,551)
Total length 1000-2500 feet (730)
Truss (16,266)
US 1 (52)
Vertical lift (187)
Warren through truss (145)
Warren truss (914)

Update Log 

Sources 

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Comments 

Main Street Bridge
Posted December 27, 2006, by Jim Miles (JammingATsprintmail [dot] com)

Be careful in driving this bridge as it has been upgraded several times for traction problems when wet. The latest upgrade is ongoing and may have cured the problem, but take it safe driving on your mind.

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