Ramp Q1 over Ramps 04 and P1/08


Dupage County, IL (ISTHA Contract No. I-20-4722) IDOT Structure Number 022-9515. Our lead designer performed the design of the substructure, bearing, splices, and cross frame connection as well as the design plans. The structure is a partially curved two-span bridge consisting of steel plate girder on multi-column piers with spread footing supported by piles and pile bent abutments. Girder depth was 68" and bridge length was 322 feet (159‘-163‘). The image above shows the 3-span bridge carrying US 24 over LaMoine River, Brown & Schuyler Counties, IL (0605).

I-70 bridge over the Mississippi River, Missouri Approach Spans, St. Louis, MO (0802)

3-span bridge carrying I-57 over Lake Creek, Williamson County, IL (0008)

Two span curved girder bridge carrying Ramp Q1 over Ramps 04 and P1/08, DuPage County, IL (1401)

Single span railroad bridge carrying BNSF over IL 336 Ramp, McDonough County, IL (0113)