| Owner: |
Maryland Transportation Authority |
| Location: |
Baltimore County, MD |
| Expertise Provided: |
Structural Design, Construction Consultation |
MdTA’s I-95 Section 100, Segment 1 project is a reconfiguration of the I-95 and I-895 interchange which includes the addition of express toll lanes. The Century Transportation Structure Group was responsible for the design of the flyover bridge linking the I-895 Northbound with the I-95 Northbound Roadway. The 1,424-foot long bridge is a six-span continuous curved steel plate girder bridge.
- The bridge follows a horizontal reversing curved alignment, dictated by existing and proposed roadway geometry and right-of-way constraints.
- The constructability of the bridge was a major consideration given the limited site access due to the existing roadways and Moores Run. Girder splice points were set to the maximum allowed shipping lengths, thus minimizing the number of girder segments required.
- Designed various different types of foundations for the piers because of varying geologic conditions. Piers were founded on steel H-Piles, drilled shafts, and spread foundations.
- Economical girder fabrication techniques were incorporated using the AASHTO/NSBA collaboration guidelines.
- The continuous steel girder bridge requires expansion joints only at the abutments, minimizing both construction costs and future maintenance costs.
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