Friday, July 2, 2021

1939+1990+2023 IL-17 over Illinois River at Lacon, IL

(Bridge Hunter; Historic BridgesSatellite)

Art Kistler, IDOT, 1939 photo via Bridge Hunter

"This is one of those bridges that looks exactly like a cantilever truss, with a variable depth truss forming 'towers' over the piers, however it appears to lack hinges which means that it functions as a continuous truss, not a cantilever truss." [Historic Bridges]
 
IDOT
"The 1,573-foot long [480m], 29-foot [8.8m] wide structure is a steel continuous through-truss bridge." The bridge handles almost 7,000 vehicles/day.

Art Kistler, IDOT, 1937 photo via Sene Smania comment via Bridge Hunter
[This is one of four photos of the pontoon bridge that this truss bridge replaced.]

Street View

Robert Schini posted
Lacon 6-30-21

Street View

18-wheelers fill up most of a lane. This old bridge has a lot more traffic than we have seen on some 4-lane replacement bridges in other states.
Street View

2023 Rahabilitation


While researching the C&A Depot in Lacon, IL, I noticed that Google Maps indicated that this bridge was temporarily closed. So I investigated.
The plan is to be closed from Mar 18, 2023, until Nov 3, 2023. [LaconIllinois]
The almost 8-month outage caused by the $10.1m project is a hassel for the locals during the outage, but it is good to here that IDOT is will to save one of their truss bridges. IDOT is detouring the traffic to the North to use the IL-18 Bridge at Henry. [CentralIllinoisProud]
"The project includes steel repair, bearing rehabilitation, joint replacement, bridge deck overlay, roadway and navigational lighting updates, drainage improvements, painting, and other related work." [IDOT]

No comments:

Post a Comment