20210809_SabinoPavement_ENVIRONMENTAL_CONSTRAINTS_V2.pdf

SABINO PAVEMENT REPLACEMENT AND PRESERVATION

ENVIRONMENTAL CONSTRAINTS, COORDINATION

March 22, 2021

1. All costs for work described below shall be included in the Pay Item(s) most directly applicable to that work.

2. Contractor is responsible for securing and adhering to a SWPPP.

3. No contract work shall occur between June 15-September 30 due to western yellow billed cuckoo breeding concerns. Contractor shall therefore schedule project completion to occur two weeks before this mandatory shutdown period.

4. All contractor and subcontractor vehicles, tools, and components which enter Sabino Canyon Recreation Area for project work shall be visually clean of loose and/or adhered dirt, seeds and plant parts, inside and out.

5. For protection of aquatic species no work involving liquid asphalt emulsion shall occur when the chance of rain is greater than zero percent as reported by the National Weather Service Tucson office for the affected area.

6. All contractors and subcontractors shall place drip pans under any equipment remaining within the immediate watershed of Sabino Creek during non-working hours. The immediate watershed of Sabino Creek exists above Milepost 0.74 on Road 100 and above Milepost 0.54 on Road 100A, and all of Road 100D.

7. At the time of application of asphalt emulsion and when within 50 feet of the existing wetted streambank of Sabino Creek, one contractor individual with a steel bucket and a shovel shall be tasked only with ensuring no runoff asphalt emulsion enters the wetted streambank.

8. Prohibit operation of equipment with visible unintended leakage.

9. Store equipment with visible unintended leakage out of the immediate watershed when not performing work until such leakage is resolved. Use appropriately sized drip pans to contain such leakage until leakage is repaired.

10. Thoroughly flush any new fog sealed or scrub sealed surface with potable water to rinse easily released surfactant residue from emulsion into the roadside material, but not so much flushing that it flows to the wetted creek.

11. To the degree feasible stage, service and fuel equipment at designated staging areas away from the immediate watershed.

12. Coordinate with Pima County DOT for a right-of-way permit for placement of contractor’s two variable message signboards south and west of the intersection of Sunrise and Sabino Canyon Roads beginning 14 days prior to work beginning in Sabino Canyon. Coordinate with COR on sign messages to properly alert Sabino visitors of current and upcoming access status in the Recreation Area.

13. Closely coordinate with COR to keep Ranger District and public notices up to date regarding various delays and closures that affect the public concerning Sabino Canyon pedestrian, bicycle, shuttle and cooperator group access into and through the entirety of Sabino Canyon Recreation Area. Be aware that Sabino Canyon Recreation Area has multiple trails on the city side, Wilderness side, and miscellaneous pedestrian access from nearby neighborhoods.