NM FLAP 15-2(1), Gila River Highway
Location: New Mexico State Highway 15 crossing the north fork of the Gila River and providing the only vehicular access to the Gila Cliff Dwellings National Monument. The 200-foot bridge site is located approximately 45 miles north of Silver City, NM and highway access to the location is over twisty, windy, mountainous terrain featuring a combination of steep vertical grades & sharp horizontal curves. The bridge project is 0.25 miles in length at an elevation of 5,700 feet. The river is subject to adverse New Mexico weather conditions with late spring snowfall and drenching summer monsoon rains resulting in quick rising streams. The bridge site contains multiple Threatened & Endangered (T&E) Species with close coordination between FHWA and other governmental regulatory agencies required. Fish, Snake, etc. will need to be relocated outside of proposed construction limits. Existing 100-ft bridge will be dismantled and hauled off-site.
Significant items and quantities: NM FLAP 15-2(1) will include structural concrete, reinforcing steel, drilled shafts, precast AASHTO girders, minor utility work, surveying, soil erosion control devices, roadway excavation, aggregate base, placing riprap and other hydraulic features, aggregate base, new asphalt pavement, removal of existing bridge, signing & pavement markings and temporary traffic control devices. NM SH 15 traffic will be maintained at all times during construction.
Major Work quantites:
Drilled shaft: 600 linear feet
AASHTO girder: 784 linear feet
Reinforcing steel: 72,000 pounds
Structural concrete: 305 cubic yards
Embankment construction: 8,200 cubic yards
Revetment mattress: 3,100 square yards
Aggregate base: 920 tons
It is anticipated that this project will be advertised in June 2014. NTP is anticipated in late August 2014 and project completion in early summer 2015.
The contracting range for this project is between $2 million and $4 million.
Joe Wilson, Contract Specialist, Phone 7209633090, Email [email protected] - Aaron Sanford, Phone 7209633090, Email [email protected]
