Location
5855 South 77th Street
Omaha, NE 68127
http://councilbluffsinterstate.iowadot.gov/
The Council Bluffs Interstate System Improvement Program is an ongoing comprehensive interstate redesign project which will modernize the highway system and improve mobility and safety of approximately 18 miles of interstate running through the Council Buffs area in Iowa. It is the single largest project currently in the Iowa DOT's five-year Transportation Improvement Program. The program has and will be implemented in smaller, manageable projects ranging from $10M to $150M over time. These projects are prioritized by available funding and most significant impacts to traffic management, safety and vehicle capacity. The IADOT has partnered with the FHWA and HDR as the design consultant to expand the system to handle the 30 year traffic volumes estimated to run through I80 and I29. Improvements include updates to the lighting, traffic signal, ITS, guide signing, and related infrastructure.
Construction started in February of 2011 with Hawkins Construction as the Prime Contractor
Major work included (32) bridge mounted lighting poles, (2) 89' overhead sign structures, (1) 110' sign structure, (1) 95' overhead DMS sign structure with Daktronics DMS sign installation, (7900') electrical circuits, (1088 sq ft) of Type B extruded back sign panels, (12000') 2" galvanized rigid steel conduit system installed in the concrete barrier bridge rail, and bridge navigation lighting system
Construction stated in June of 2013 with Peterson Contractors Inc. as the Prime Contractor.
Major Work included (21) 50' double arm lighting poles with 21' drilled shaft foundations in sandy soils with a high water table, (10) triangular slip base,50' lighting poles on highway ramps, (12000') of electrical circuits, (14) steel breakaway sign post, and (2900 sq ft) of Type B extruded back sign panels. Sadler Electric partnered with PCI Structures to install a total of (6) box truss and cantilever sign structures ranging from 33' to 110' long throughout this project.
Construction started in September 2013 with Hawkins Construction as the Prime Contractor.
Major work included a new traffic signal intersection consisting of radar detection, mast arm ranging in size from 40' to 65', overhead signals and signage, Opticom pre-emption GPS equipment, NEMA 2 signal controller cabinet with battery backup system, fiber optic cabling and infrastructure modifications, and a rework of the existing 29th Ave and South Expressway intersection. Signal foundations were again constructed via drilled shafts meeting the IADOT standards for Wet Shaft construction with polymer and mineral slurries ranging in size from 36" in diameter by 10' deep up to 42" in diameter by 21' deep.
We also installed the first adaptive traffic signal system in the City of Council Bluffs going from 32nd Ave to 23rd Ave and consisting of 5 signal intersections. Existing intersections were modified with Wavetronix Presence and Advanced detection equipment and new underground cabling. All programming for the detection equipment was completed by Sadler Electric's in-house employees and consisted of multiple detection zones and output channels per driving lane and separate BIU Channels in order to properly communicate the vehicle density volumes with the SynchroGreen Adaptive Signal software by Trafficware.
A signing package was completed in conjunction with this project. It consisted of (1) Overhead DMS Sign structure with IADOT's standard spread footing and stem wall construction for the foundations, (21) steel breakaway sign post, (787 sq ft) of Type B extruded back sign panels, a 70' signing mast arm, delineators, mile markers, and chevron guidance markers.
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.
Construction stated in June of 2014 with Peterson Contractors Inc. as the Prime Contractor
Major work included the relocation of lighting control centers so that existing lighting systems could be maintained, removal of wood electrical and communication poles, and Verizon cell tower power/COMM/grounding services relocation.
Construction started in March of 2015 with Ames Construction Inc. as the Prime Contractor.
Major work included the installation of (2) temporary traffic signals, (3) new permanent signal intersections, (8) 120' and 140' high mast tower lighting poles with 48" diameter drilled shafts ranging from 30' to 36' deep, (6) bridge mounted Lighting poles, (42) steel breakaway sign post and associated footings, (3162 sq ft) of Type B extruded back sign panels, (1) 80’ overhead sign structure, (1) 100’ overhead sign structure, (1) 120’ overhead sign structure, (71) Lighting pole and footing removals, (48) temporary wood lighting poles and overhead circuits, and (9000’) of electrical circuits.
The traffic signal installation included mast arm and lighting poles ranging from 50’ to 85’ long with foundations up to 42” diameter by 28’ deep, (37) signal heads, Wavetronix Presence and Advanced detection equipment at three intersections, GPS Opticom preemption systems, NEMA Signal controllers with Battery Backup Systems (BBS’s), (2600’) of 2” and 3” trenched/bored conduits with related IMSA signal circuit wiring, and Tesco meter pedestals. Signal foundations were again constructed via drilled shafts meeting the IADOT standards for Wet Shaft construction with polymer and mineral slurries ranging in size from 36" in diameter by 10' deep up to 42" in diameter by 28' deep. The intersections involved where US275 and I29 Southbound Ramp, US275 and I29 Northbound Ramp, and US275 and Harry Langdon Blvd.
This project also included an ITS infrastructure package of (6200’) of 2”/3” HDPE conduits with fiber optic vaults, ITS equipment cabinets, poles, devices, and power cabling.
Construction stated in May of 2015 with Peterson Contractors Inc. as the Prime Contractor
Major work included the installation of (4) 120' high mast tower lighting poles with 48" diameter drilled shafts at 25’ deep, (1260 sq ft) of Type B extruded back sign panels, (1) 33’ Cantilever sign structure, (4) 66’ custom overhead sign structures, (1) 95’ overhead sign structure, (1) 115’ overhead sign structure, (1) 120’ overhead sign structure, (64) Lighting pole and footing removals, and (6000’) of electrical circuits.
The large signing component of this project required (1550 CY) of excavations, (450 CY) of structural concrete, and (57500lbs) of epoxy reinforcing steel in order to construct the 10’x25’ with vertical stem wall formed sign foundations
This project also included an ITS infrastructure package of (12800’) of 2”/3” HDPE conduits with fiber optic vaults, ITS equipment cabinets, poles, devices, and power cabling.
Construction started in September of 2015 with Ames Construction Inc. as the Prime Contractor.
Major work included the installation of three electrical services with pre-ducted cabling for BNSF’s railroad equipment and track crossings, along with sign post with Type A signs for roadways.
Conduit and wiring installation was completed in the Levy Critical areas next to Mosquito Creek. Excavations required a 2:1 “V” ditch cut for trenches, with special compaction and testing requirements in order to meet the USACE levy requirements.
Construction started in February of 2016 with a triple joint venture between Hawkins Construction, Cramer and Associates, and United Contractors
Major work included the installation of (8) 120' and 140’ high mast tower lighting poles with 48" diameter drilled shafts ranging in size from 30’ to 48’ deep, (3711 sq ft) of Type B extruded back sign panels, (1) 50’ overhead sign structures, (1) 90’ overhead sign structure, (2) 100’ overhead sign structure, (1) 115’ overhead sign structure, and (1) 130’ overhead sign structure, and (6000’) of electrical circuits.
The IADOT also required the removal and relocation of an existing 70’ box truss DMS Structure and Daktronics DMS Sign. The relocation of the entire structure and digital sign was required to be completed within a 2 week window. Due to the requirement to keep lanes open on I80, a 120ton crane was used to remove the entire structure and sign in one lift. The structure and DMS where loaded onto trailers and relocated to the new site. From start to finish, the entire operation for relocating the structure/DMS board was completed in three back to back nights. High praises were again given by the IADOT Commercial vehicle enforcement, IADOT/HDR, and the Joint Venture on another smooth, thoroughly coordinated and executed installation.
Construction started in May of 2016 with Hawkins Construction as the Prime Contractor
Major work included the installation of (1) temporary traffic signals, (1) new permanent signal intersections, (1) railroad grade crossing wayside signal, (1) 140' high mast tower lighting pole with 48" diameter drilled shafts at 40’ deep, (25) Lighting poles with 21' drilled shaft foundations in sandy soils with a high water table, (3162 sq ft) of Type B extruded back sign panels, (1) 100' overhead sign structure on 36"x90'+ and 48"x90'+ drilled shafts bedded in rock sockets, (22) Lighting pole and footing removals, and (5900’) of electrical circuits.
The traffic signal installation included mast arm and lighting poles ranging from 25’ to 70’ long with foundations up to 42” diameter by 21’ deep, (15) signal heads, Wavetronix Presence and Advanced detection equipment at both the temporary and permanent signal intersection, GPS Opticom preemption systems, NEMA Signal controller with Battery Backup Systems (BBS), (1400’) of 2” and 3” trenched/bored conduits with related IMSA signal circuit wiring, and a Tesco meter pedestal. Signal foundations were again constructed via drilled shafts meeting the IADOT standards for Wet Shaft construction with polymer and mineral slurries ranging in size from 36" in diameter by 10' deep up to 42" in diameter by 21' deep
The Railroad grade crossing signal included (2) gate arm assemblies with precast concrete foundations, a gate house bungalow with equipment by Alstom and GE Transportation, rail track circuits, shunts, and associated relays. All conduits and UG track circuits were required to sit on a bed of 4” sand. Extensive testing per the FRA requirements were completed on everything from the grounding system to the track circuits to the gate house bungalow. Sadler Electric partnered with an outside IRSE Signal Engineer to deliver this signal to BNSF.
