The recommended alignment for the Central Mindanao High Standard Highway (Cagayan de Oro–Malaybalay Section) has been finalized, with a total length of 64.7 kilometers. This was detailed in the DPWH Preparatory Survey Final Report for the project, which aims to improve transportation access between North-Central and Southern Mindanao. This section forms part of the 300-kilometer high-standard road connecting Cagayan de Oro City to Davao City. The new highway will feature four lanes, multiple bridges, underpasses, overpasses and five major interchanges.
Here’s the map showing the recommended final alignment (shown in red) compared to the original alignment from the pre-feasibility study. It is divided into five sections.
Below is the typical road dimensions.
The final alignment was chosen to minimize impacts on people, properties, traffic, and the environment, among others.
The project is just the first section connecting the cities of Cagayan de Oro and Davao.
SPECIFIC ALIGNMENTS
SECTION 1 (Sta.-0+229.207km – Sta. 11+147.23km)
At the start of the project, an at-grade intersection is planned along the CDO-Butuan National Road connecting to the toll plaza. Actual number of lanes is six (6) lanes transitioning to the existing bridge also at six-lanes, typical number of lanes is 4-lanes before this proposed intersection. In order to manage this intersection with possible heavy traffic scenarios, a channelized intersection must be designed by providing exclusive left turn bay and right turn bay before and after joining the existing national road. A traffic signal system is required. The existing road is shown in the photo (2) of looking towards Butuan. The shoulders are sufficient enough for right turn bay.
The next location is where Bridge No. 1 is proposed. It will be a long viaduct ascending towards the mountain. The location is more of a coconut tree plantation area as shown below.
At Sta. 2+ 736 where the Central Mindanao Highway (CMH) will be crossing existing Alae Bypass Road. An underpass will be provided. Since the location of the underpass is on a curve, traffic signs and markings will be provided increasing the sight distance towards the underpass crossing needs to be done.
At Sta. 3+500 to Sta. 5+500, the preliminary designed bridge approach for a special bridge type is observed to have asymmetrical location of its abutment due to the edge of the mountain’s ridge. A possible realignment (green line) is shown below.
As shown below, the location of the special bridge is near to the ridge on both sides of the proposed alignment. Approach of the proposed bridge is on cut.
Figure below shows the proposed alignment and photos just before another special bridge that will cross Alae Bypass Road at a very high elevation.
Here’s the location after the special bridge.
Shown below is the underpass location that is near to the affected BUSECO power lines.
Shown below is the trumpet type interchange and the realignment of existing gravel road to access the community.
This is Interchange No.1 (Mambatangan Interchange) junction at Sayre Highway and is a four (4)-lane carriageway with a wide shoulder.
SECTION 2 (Sta.11+147.23km – Sta. 26+750km)
At Sta.14+500, Photo No. 1 below shows the incomplete section of the bypass road. There is a barangay road with still gravel/dirt road and concrete road in other section that will be crossed by the CMH. It is provided with a bridge structure because of its existing terrain, thereby the existing access barangay road will be under the bridge. A retaining wall between the barangay road and the CMH is provided.
The CMH will be crossing the existing Sayre Highway at Sta. 12+ 801, with 4-lanes and wide shoulders or in the future will be used operationally as 6-lanes. Therefore, the original plan which was for a box culvert was changed to underpass bridge type to avoid median piers/column along the national highway.
The CMH at Sta. 18+732 crosses the existing 2-lane PCCP road which will be converted to an overpass crossing as shown below. Existing gravel road towards farm and ranch will be affected, thus, an underpass is provided to connect with the existing barangay road.
At Sta. 20+980, a trail/gravel road is accessible CMH. An underpass crossing is to be provided for farm crossing and access to communities.
This is a continuation of a paved concrete road within the plantation area. At Sta. 22+546, an underpass will be provided as the CMH will be above this road. This road accesses the existing ranch nearby.
At Sta. 23+ 999, an existing paved concrete 2-lane road (San Miguel-Camp Philips Rd.) is to be maintained but provided with underpass crossing as the CMH will be above this existing road.
Sta. 26+750 is the location of Interchange 2 (Manolo Fortich). This location sits on an abandoned airstrip for small planes used for farming aerial pesticide spraying.
SECTION 3 (Sta.26+750km – Sta. 41+657.270km)
At Sta. 27 + 902, an underpass road crossing is provided. This is an access gravel road (Lindaban-Dahilayan Rd.). Connected with this road is the proposed intersection of Interchange 2 (Manolo Fortich) which will be paved towards the existing concrete road.
A Special Bridge is to be constructed at this river valley
A bridge is needed at Sta 36+500. A gravel/dirt road under the bridge will be maintained.
The existing grave road near Sta. 40+ 800 will be cut by the CMH but it will be interconnected by a provided adjacent overpass crossing at Sta. 41 + 364. This is also located near a proposed special bridge abutment location.
At Sta. 41+ 364, a proposed overpass is located to access barangays. Several houses are affected in this area as the CMH is at cut-section.
Below shows the location of Interchange 3 (Impasug-ong) to Sayre Highway, which is a 4-lane highway with sufficient shoulder. Improvement of intersection will be designed in this section to provide channelization and to maintain existing number of lanes along Sayre Highway.
The arch bridge shown below is located at a bypass link to Manolo Fortich. The two (2) lane Mangima-Agusan Canyon Bypass Road with high cut at one approach of the bridge is to bypass the Mangima Zigzag Road.
The existing Atugan Bridge is located along Sayre Highway. and is a 2-lane bridge. This is also a reference bridge as the proposed CMH is at the upstream side of the same river.
SECTION 4 (Sta.41+657.270km – Sta. 52+500km)
At Sta. 45 + 228, a concreted two-lane roadway exists. The proposed structure is an underpass to cover the carriageway and with sufficient shoulder.
At Sta. 52 + 064 is a proposed overpass bridge structure. This is a dirt road access for pineapple farming and nearby poultry houses.
At Sta. 52+500, Interchange No. 4 (Dalwangan) is located. Since there is a NGCP tower near the loop ramp, nearest interconnection of farm roads within the vicinity and the terrain is at hilly area, the interchange loop ramp is proposed as cut section.
Intersected is an existing 4-lane road with ample shoulders on both sides. This intersection will be improved to provide a right turn bay and a left turn bay. The existing number of lanes will be maintained, thus, widening will be necessary along Sayre Highway.
SECTION 5 (Sta.52+500km – Sta. 64+500km)
At Sta 54+ 500, an overpass crossing was planned, however the study modified to underpass due to difficulty of constructing overpass at a heavy traffic major highway.
At Sta. 55+ 940 is a proposed underpass. The intersecting road is a dirt farm road and accesses to communities.
At Sta. 57 + 507, the intersecting road is designed as an underpass at the Sayre Highway.
At Sta 60 + 160, a 2-lane new concreted road is to be constructed overpassing the highway. This road is still carrying still a light traffic; thus, reconstruction is possible without adverse effect to motorists.
At Sta. 61 +165 is a continuation of newly concreted 2-lane road, a proposed underpass is possible in this location as it is coinciding with the terrain.
An overpass is proposed at Sta 64+ 040. This is a dirt farm road crossing and also accessing to a poultry houses.
Sta. 64+650 is the end of the proposed CMH. It is linked to Interchange 5 (Malaybalay) towards the Sayre Highway.
Below are renderings of the typical sections, particularly road crossings.
The total project cost is estimated at P144.85 billion, with Section 1 proposed to be funded by the Japan International Cooperation Agency (JICA) and Sections 2 to 5 proposed to be financed by the Asian Development Bank (ADB).
maps, data from DPWH Preparatory Survey for Central Mindanao High Standard Highway Project (Cagayan de Oro-Malaybalay section) Final Report (Advanced Version)
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