Phase 4US275/IA92 & I29 (Phase 1),
US275/IA92 & I29 (Phase 1),
Mosquito Creek Bridges
Construction started in April 2014 with a triple joint venture between Hawkins Construction, Cramer and Associates, and United Contractors
- Major work included the installation of two temporary traffic signals with removals of the existing signal infrastructure, (1) 80′ overhead sign structure on 36″x90’+ and 48″x90’+ drilled shafts bedded in rock sockets, (1) 130′ overhead sign structure, (735 sq ft) of Type B extruded back sign panels and misc breakaway sign post.
- Existing overhead sign structures in the way of the new construction were removed during nighttime lane closures and rolling roadblocks. The new sign structures were installed in this same manner. Due to the requirement to keep lanes open, a 120ton crane was used to set the 34,000lbs, 130′ sign structure at nighttime under a 15 minute closure of I29 northbound. The setting of the horizontal section, complete with new signage, was set in under 8 minutes with traffic moving again. High praises were given by the IADOT Commercial vehicle enforcement, IADOT, and the Joint Venture on another smooth, thoroughly coordinated and executed installation.
