ITD Office of Communication
Southwest Idaho highway construction report for Nov. 16-23
BOISE - The following projects in southwest Idaho are now under way.
BOISE - Idaho 16 Extension, Boise River Crossing
Work is under way for the first phase of the extension of Idaho 16, which will be complete in August 2014.
Crews will connect State Street (Idaho 44) to Chinden Boulevard, including a new bridge over the Boise River.
The contractor continues to build the bridge foundations and columns. Pile-driving is complete on the north side of the river. The contractor is finishing the columns with pier caps to prepare for girder installation. On both the north and south approaches to the bridge, the contractor continues to place roadway material for the future highway.
Concrete Placing Co. Inc., of Boise, is the contractor on this $19.4 million project.
BOISE - Idaho 16 Extension, Phyllis Canal Bridge and South Segment
This project extends Idaho 16 from U.S. 20/26 (at McDermott Road) to Joplin Road, where it ties in to the new Idaho 16 Boise River Bridge project.
The contractor placed the concrete floor for the Phyllis Canal structure and continues to place roadway materials for the future highway. In addition, they are also working on irrigation and drainage facilities between U.S. 20/26 and Joplin Road.
Substantial Completion is expected in December 2013, with overall completion in August 2014.
Concrete Placing Co Inc. is the contractor on this $10.8 million project.
MERIDIAN - Eagle Road resurfacing and medians
Work has been under way since early summer on this project, which is resurfacing Idaho 55 from Fairview Avenue in Meridian to State Street in Eagle, and installing raised medians from Franklin to Oakhampton Drive, one-half mile north of Chinden Boulevard.
The main part of the contract work is nearing completion. Crews then will perform work at the Eagle and Chinden intersection, adding a new signal and removing the free-running rights. This work should be completed by mid-December.
Idaho Sand & Gravel Co., of Nampa, is the contractor on this $4.7 million project.
State St./Linder Rd./Ballantyne Lane intersection work
The project will ultimately reconstruct the intersection of Idaho 44 and Linder, including the reconstruction and expansion of Idaho 44 between Linder and Ballantyne and the rebuilding of Linder in the vicinity of Idaho 44.
Project design is halfway complete. Utility relocations are currently taking place, with actual construction anticipated to begin next week.
Crews began utility relocations this week. Construction activities will begin next week, with temporary widening on the south side of Idaho 44. The project is scheduled to be complete in September 2013.
Central Paving, of Boise, is the contractor on this $9.23 million project.
ADA, BOISE COUNTY
Replacement of Dynamic Message Signs
In this project, DMS signs are being replaced in several locations, primarily on Idaho 21. The work involves removing the existing message signs and controller cabinets and replacing them with upgraded signs and cabinets at their current locations. The sign locations are on Idaho 21 at the junction to Warm Springs, Idaho City, Lowman, and Stanley. And on the Banks to Lowman Highway at Banks, and Idaho 55 near the Shadow Valley Golf Course.
Five of the six bases have been completed. By the end of next week all of the concrete will be poured for the foundations.
Quality Electric Inc., of Boise, is the contractor on this $321,000 project. The work, which is not impacting traffic, is expected to finish by January 2013.
Idaho 21 resurfacing to Lowman
A resurfacing project covering 20.4 miles of Idaho 21 in Boise County will finish in Oct. 2013.
The project runs from Mores Creek Summit to Clear Creek Bridge below Lowman, adding a Stress-Absorbing Fiberglass Layer with Emulsified Asphalt (SAFLEA) on two adjoining sections of Idaho 21 (milepost 52.3 to 60 and 60 to 72.7), conducting slope stabilization, and upgrading guardrail at existing locations.
A SAFLEA treatment is a seal coat with a coating of chopped glass fibers between the oil and gravel aggregates to enhance durability and reduce cracking.
After this week, the paving of the trenches should be completed, meaning no more portable signals or flaggers reducing the roadway to one lane. The contractor is cleaning up the storage areas, stockpile sites and preparing the site for winter.
Knife River Corp, of Boise, is the contractor on this $3.9 million project.
CANYON, OWYHEE COUNTY
Idaho 55 resurfacing in Marsing, Caldwell
A resurfacing project is wrapping up at two locations between the Snake River Bridge in Marsing and Pride Lane in Huston, which is just to the west of Caldwell. The project extends 8.5 miles north from the bridge.
Work on this short project, which involves recycled asphalt and an overlay treatment, is expected to finish by the end of November. The two project locations are separated by just a few miles.
One lane of traffic will remain open, and motorists will be guided by flaggers on this two-lane road. The speed limit will be reduced to 35 mph in the work zone, and brief delays are expected. The delays should be 5-15 minutes typically, and up to 30 minutes if crews are working on the lower and upper sections at the same time and drivers get caught at both stops.
Crews are waiting on better weather to finish paving, which will result in delays. Work is entirely dependent on the weather but may be possible through the weekend.
Knife River Corp. Northwest, of Boise, is the contractor on this $933,000 project.
CANYON, PAYETTE COUNTIES
I-84 median leveling, Black Canyon to Sand Hollow
The median of Interstate 84 near Sand Hollow, a few miles east of Black Canyon, is being leveled in a project expected to finish by the end of the month. Crews are removing the berms in the median of the interstate. The leveling is a safety improvement to minimize water runoff that created soft-spot hazards in the median.
The speed limit is reduced to 65 mph weekdays (during the day) between milepost 13 (Black Canyon) and 17 (Sand Hollow), and the inside (left) lanes will be coned off in each direction during the work.
Crews have completed the earthmoving activities. They still need to install catch basins and re-seed the project area.
Irvco Asphalt & Gravel Inc., of Fruitland, is the contractor on this $235,000 work.
CASCADE – Bridge Replacement
A replacement of the North Fork Payette River Bridge in downtown Cascade is now under way. The bridge work will extend into summer 2013.
This project will replace the old, narrow, width-restricted bridge built in 1933 with one more than twice as wide. The existing bridge is 24 feet wide, and will be replaced with a 60-foot wide, 393-foot long, three-span bridge. The new bridge will have two 12-foot lanes, two 11-foot shoulders and a 14-foot median.
In addition, a paved extension will be built to the dirt shared-use path under the bridge on the north side of the river that provides access from both sides of the bridge to the new riverside park.
In the first stage, two-thirds of the new bridge will be built to the west of the existing structure. Traffic will be maintained on the existing bridge through this first stage of bridge work, and then will be routed to the new section of bridge for the remaining work as the old bridge is demolished. There will be traffic interruptions while the new roadway section leading to the new bridge is built.
This week, the contractor poured Abutment 1 and is working on backfilling both abutments and getting ready to set girders. The plan is to set one of the three spans of girders next week. When we set girders, there will be delays of up to 15 minutes, with flaggers controlling traffic.
From Monday through Thursday, work that limits drivers to one lane in each direction is only allowed between 9 a.m. and 4 p.m. Two lanes will be maintained between noon Friday and noon Monday. A river safety and navigation plan will be in place for recreationists that use this section of the river.?
Wadsworth Brothers Construction Co. Inc., of Draper, Utah, is the contractor on this $4.83 million project.
Highway construction is one of the key forces pushing Idaho toward continued economic vitality by creating jobs, improving safety and reducing traffic congestion.