Overload_permit_letter_1_Pg.doc

Coconino & Kaibab National Forest 1824 S. Thompson

Flagstaff, AZ 86001

Subject: Overload Requirements The Coconino & Kaibab National Forest would like to make contractors aware of the overload permit requirements for crossing any of our forest bridges. You will be required to complete the attached overload permit(s). It will need to be completed by a registered Arizona Professional Engineer, including a load rating for the proposed vehicle(s) and equipment. Existing information on forest bridges can be supplied to the contractor’s registered Arizona Professional Engineer as needed. The contractor’s engineer should perform their own bridge rating to base the load rating on. The overload permit and load rating then needs to be submitted to the Forest Service for review and acceptance. The contractor may need to address comments related to the load rating and inspections performed. Once all if any comments have been addressed the contractor’s engineer will need to stamp, sign and date the load rating calculations.

The contractor should provide the Forest Service with a copy of any permit’s required by the state highway department as well. The number of trips over the structure(s) should be clearly stated in any request. The contractor’s engineer should state any assumptions made, i.e., lower speed to reduce impact. It will be the contractor’s responsibility to ensure that the COR can check compliance with the overload permit, i.e., scales, speed monitoring and trip counting.

It is highly recommended that the contractor proposing an overload should have pre and post construction inspection(s) to determine if there has been any damage from the overloads. A Forest Service Representative with the COR should be present at the inspection(s) in case damage is found.

The contractor should let the forest service and COR know their proposed travel route ahead of time.

If you have any questions, please contact me at (928) 527-3524.

Sincerely, Ray Holt, P.E.

Civil Engineer and Contracting Officer’s Representative