Rating:
2 votes

Lacon Bridge

Marshall County, Illinois

Photos 

Overview

Photo taken by Bill Burmaster

BH Photo #102362

Map 

Street Views 

Facts 

Overview
Continuous through truss bridge over the Illinois River on IL 17 at Lacon
Location
Lacon, Marshall County, Illinois
Status
Open to two-lane traffic
History
Built 1939; rehabilitated 1990
Design
Continuous Through Truss
Dimensions
Length of largest span: 377.8 ft.
Total length: 1,572.7 ft.
Deck width: 26.2 ft.
Vertical clearance above deck: 16.3 ft.
Approximate latitude, longitude
+41.02639, -89.42056   (decimal degrees)
41°01'35" N, 89°25'14" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/296500/4544509 (zone/easting/northing)
Quadrangle map:
Lacon
Average daily traffic (as of 2017)
7,000
Inventory numbers
IL 062-0003 (Illinois bridge number)
BH 15513 (Bridgehunter.com ID)
Inspection report (as of April 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 51.1 (out of 100)
View more at BridgeReports.com

Categories 

Built 1939 (774)
Built during 1930s (11,773)
Functionally obsolete (6,365)
Have street view (27,072)
Illinois (4,687)
Illinois River (59)
Lacon, Illinois (3)
Marshall County, Illinois (22)
Navigable waterway (2,154)
 Open (39,986)
Owned by state (16,055)
Span length 250-500 feet (1,196)
Through truss (15,198)
Total length 1000-2500 feet (1,889)
Truss (32,984)
Warren through truss (1,617)
Warren through truss with all verticals (400)
Warren truss (6,583)

Update Log 

  • January 13, 2015: New photos from Gene Smania
  • December 5, 2012: New photo from Steve Conro
  • April 12, 2010: New Street View added by Nathan Holth
  • January 15, 2009: Updated by Ian Anderson
  • January 10, 2009: Updated by Ian Anderson: This is actually a Continuous Through Truss, http://en.wikipedia.org/wiki/Lacon,_Illinois
  • January 9, 2006: Posted photos from Bill Burmaster

Sources 

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Comments 

Lacon Bridge
Posted March 17, 2011, by Gene Smania

Bridge plate from Lacon Bridge.

Lacon Bridge
Posted March 12, 2011, by Gene Smania

The 1939 structure replaced a pontoon bridge across the Illinois River at Lacon. All photos are by Art Kistler, IDOT employee.

Lacon Bridge
Posted January 23, 2008, by Anthony (ascriven1 [at] juno [dot] com)

Functionally Obsolete does NOT mean unsafe or dangerous. It only means that the bridge is not built to modern standards. For example, the Murray Baker Bridge (I-74) in Peoria is listed as functionally obsolete because it has no shoulders, which are part of any new multi-lane interstate highway bridge. A bridge being listed as functionally obsolete does not mean that is is decrepit and going to fall down, it just means that it is outdated by today's standards. If maintained, it can last just as long as any other bridge.

Lacon Bridge
Posted October 1, 2007, by Anonymous

if it is functionally obsolete why not fix it so noone has to be hurt or killed before you do smoething??????????????????

Lacon Bridge
Posted January 27, 2007, by Jim Frazier (jim [at] jimfrazier [dot] com)

Here's a photo I took in December 2006