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The Alameda County Transportation Commission in cooperation with the City of Oakland has been implemented operational and safety improvements on Interstate 880 (I-880) at 23rd and 29th Avenues.
The project included the replacement of the freeway overcrossing structures, safety improvements to the northbound on- and off-ramps plus the freeway mainline and installation of sound walls in the northbound direction between 29th and 23rd Avenues.
In addition, local streets were also modified and landscape enhancement works were implemented. The total cost of the project was around $113,652,000.
mageba provided two TENSA®MODULAR LR3 expansion joints in which each joint was about 90 ft long (27 m). In addition, two TENSA®GRIP RS single gap joints (total length 116 ft (35 m)) were in the delivered scope of products.
Along with the joints, mageba also supplied two sliding concrete barrier plates for each of the modular and strip seal joints. All joints were fabricated and delivered in full length, meaning without the need of field splicing the beams on site.
All items were designed and fabricated in accordance with the AASHTO LRFD Bridge Construction Specifications.
The installed modular expansion joints were fatigue tested according to AASHTO’s Appendix A19 at Lehigh University.
TENSA®MODULAR LR3 modular joints, TENSA®GRIP RS-R3 single gap joints
RGW Construction Inc.
State of California DOT