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| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date and Builder/Engineer | |
|---|---|---|---|---|---|
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Renwick Road Bridge
Spring Banks Road Bridge | Renwick Road Over Du Page River | Plainfield: Will County, Illinois | Metal 9 Panel Pin-Connected Pratt Through Truss, Fixed | By Builder/Contractor: Wrought Iron Bridge Company of Canton, Ohio |
| Technical Facts |
| Main Span Length | Structure Length | Roadway Width | Main Spans | NBI Number |
| 151 Feet (46 Meters) | 155.8 Feet (47.5 Meters) | 12 Feet (3.7 Meters) | 1 | 99312021994 |
This classic bridge seems out of place in Will County, which along with Cook County is an area known for truss bridges with massive-members and mostly built in the 20th Century, and mostly movable bridges. Finding a classic pin connected Pratt through truss constructed by the Wrought Iron Bridge Company of Canton, Ohio is the last thing you might expect. Yet here it sits, open to traffic in an area that is really not that far from a commercialized suburban area. As such, it is particularly rare and significant in a local context.
This bridge has an original builder plaque on it, and while it looks nice and allows visitors to identify who built the bridge, like a number of the Wrought Iron Bridge Company plaques, it falls short of providing one of the most valuable pieces of information - a construction date! The Historic American Engineering Record (HAER) simply remarks that the accepted date is 1912, but that statement only calls the competency of the historian who compiled the HAER report into question. It is common knowledge among bridge historians that Wrought Iron Bridge Company was absorbed into the American Bridge Company in 1900 bringing an end to the company name.
The bridge is traditionally designed, and features v-lacing on the verticals and under the top chord / end posts. The portal bracing is a lattice design. The bridge is seated on stone abutments. There are nine panels composing the structure.
This bridge is to be replaced with a new bridge on different alignment, but reportedly will be preserved in place for pedestrian use, which is a good outcome that will save this historic bridge and keep it around for many decades to come.
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