This was a multi-faceted project that included 5.4 miles of mainline roadway improvements such as asphalt pulverizing, geotextile/geogrid placement, and asphalt paving.
The existing asphalt roadway was heavily damaged due to the poor subgrade materials. Over 27,000 cubic yards of subexcavation was performed, and import compacted fill was used to replace the unsuitable native materials. Culverts, Guardrails, Gabion Baskets, Pull-out/Parking Areas and many other items were included as part of this project, as well as, the addition of both Optional Bid Schedules. These options consisted of completely reconstructing the employee housing, yard/road maintenance and chip sealing 8.8 miles of additional roadway within the Theodore Roosevelt National Park. Subsequently, DLM was asked by the Park Service and FHWA to perform modification work including a timber wall, gravel roadway construction and a 12 foot wide culvert repair. This work was performed in the spring of 2010.Read Testimonial