The RM of Corman Park council voted unanimously to approve a proposal that would permit night hauling of gravel in the vicinity of the Warman and Martensville overpasses, currently under construction. Continue reading “Corman Park council okays gravel night haul”
Construction work on the $60.6 million Warman Martensville Interchanges Project is underway.
Excavation and earth-moving operations began on the Highway 11 overpass near Warman and the Highway 12 overpass at Martensville on Friday, March 21. Both interchanges are being constructed concurrently as a single “design-build” project under the management of Peter Kiewit Infrastructure Co in partnership with the provincial Ministry of Highways and Infrastructure. Other project partners include ISL Engineering and Land Services, Collings Johnston Inc, McElhanney Engineer Services and Clifton Associates Ltd.
According to the project website (www.wminterchanges.ca), Kiewit’s focus for April operations include:
* topsoil stripping and stockpiling;
* structural excavation for the centre bridge pier foundation;
* piling at bridge structure;
* SaskPower utility relocations;
* installation of Martensville Stage 1 Detour signage.
The company says temporary traffic management measures will be implemented at the Martensville portion of the project beginning on Wednesday, April 5. At that time, a portion of Range Road 384 between Highway 12 and the western limit of the project will be closed to traffic and a detour put in place.
The Kiewet website notes the company’s aim is to “minimize the construction impacts on daily activities in the community. However, as with most infrastructure projects, there will be temporary detours, lane restrictions or other traffic changes.
“Any changes to traffic patterns will be clearly indicated with on-site signage.”
Information will also be posted regularly on the wminterchanges.ca website.
The Highway 11 interchange portion of the project includes: construction of approximately five kilometers of new four-lane divided roadway for Highway 11; construction of a new two-lane overpass for Highway 305 and associated on and off ramps; construction of approximately two kilometers of a new two-lane roadway to connect Highway 305, Range Road 3044, and Ferry Road; safety upgrades to the rail crossing on Highway 305; and safety upgrades to the intersection of Highway 11 and Ferry Road/Central Street.
The Highway 12 portion of the project includes: construction of about four kilometers of new four-lane divided roadway for Highway 12; construction of a new two-lane overpass for Township Road 384 and associated on and off ramps; reconfiguration of the Centennial Drive and Main Street intersection; and construction of a new Highway 12 exit ramp and signalized intersection at Centennial Drive and 4th Street.
The interchange project is jointly funded by the provincial and federal governments under the Provincial Territorial Infrastructure Component – National and Regional Projects.
Construction work is slated to begin next spring on both the Warman and Martensville overpasses, with the projects completed by the end of 2019.
Traffic disruption during the construction period should be “kept to a minimum” because the bulk of the work will be taking place away from the existing Highway 12 and Highway 11, according to Doug Wakabayashi, Executive-Director of Communications for the Ministry of Highways and Infrastructure (MHI).
In an interview during an information open house in Warman on Thursday, November 17, Wakabayashi said both interchanges are being built simultaneously. The $60.6 million design-build project is being built by a consortium led by Peter Kiewit Infrastructure Co (PKIC) and is jointly funded by the provincial and federal governments.
“Accommodating traffic during the construction of these two projects is less of a challenge than on something like the Regina Bypass,” said Wakabayashi. “A lot of the work is ‘green field,’ that is, not in the existing stream of traffic.”
Portions of both Highway 12 and Highway 11 will be realigned to accommodate the interchanges, noted Wakabayashi. Highway 12 north-bound and south-bound lanes will move further west, while Highway 11 north-bound and south-bound lanes will be realigned further east.
The Highway 11 realignment will be in the vicinity of the current Central Street entrance to Warman. While north-bound traffic on Highway 11 will still be able to turn west into Warman, the intersection itself will see the addition of a median and yield sign for traffic turning left into town.
Highway 11 north-bound traffic will also be able to turn east onto Ferry Road. However, west-bound traffic on Ferry Road will no longer be able to cross Highway 11 to go straight into Warman. Instead, west-bound traffic on Ferry Road must turn north on Highway 11. Alternatively, west-bound Ferry Road traffic will also be diverted north to the Highway 305 interchange.
“Intersections are inherently dangerous sections of a roadway because they’re the only point where streams of traffic are allowed to cross each other,” said Wakabayashi. “And by building an overpass bridge you eliminate the need for have traffic to do that.”
The Highway 12 overpass at Martensville’s Main Street entrance will allow the city to grow on the west side of the highway, noted Wakabayashi.
“When we do designs for these projects we look at not only traffic volumes and safety concerns, but we’re also building something that will serve the needs of the population well into the future. We consult closely with municipal governments, area residents, businesses, developers and other stakeholders so we can see what kind of growth is going to occur over the next 20 to 40 years.”
He noted the decision to locate the Warman overpass at the intersection of Highway 11 and 305 was made for a number of reasons, with safety being the primary goal.
“If you look at the footprint of the interchange itself, it would have been quite tight to the existing development of the city,” he said. “There would have been some impact on the school in terms of land requirements for the interchange, so during the stakeholder consultations and the engineering studies, the decision was made to move the interchange north to Highway 305.
“That gives a highway-to-highway connection and eliminates the need to come right into the city itself to make that connection.”
The realignment of the highway also involves restricting the number of access points for traffic entering and exiting the highway, and pulls the highway further away from the railway tracks, he noted.
Wakabayashi said the open houses provide stakeholders, including landowners and business owners, an opportunity to talk directly to the engineers about the design and also the impact on traffic during the construction phase.