ADOT Environmental Planning 10/24/2022 Environmental Commitments 7/30/2025 Project #SF025 Page 1 of 3

0000 PM TUC SF025 01C

TUC-0(252)A

UA 2nd Street Bike and Pedestrian Improvements

ENVIRONMENTAL COMMITMENTS

The following shall be included in the project special provisions:

I. “The project mitigation measures are not subject to change without written approval from ADOT Environmental Planning. The Contractor shall follow all the requirements of the permits specified herein and comply with the project special provisions as well as the PAG Standard Specifications for Public Improvements, as well as all applicable local environmental requirements.”

The following contractor’s mitigation measures, permits and guidelines (as applicable) shall be included in the project special provisions:

II. Project Mitigation Measures:

City of Tucson Responsibilities:

• If any active bird nests cannot be avoided by vegetation clearing or construction activities, the Engineer will contact the City of Tucson Project Manager (520-484-5569) to evaluate the situation.

• The following restricted work areas have been identified and require protection in place:

o Area 1: James E Rodgers Way to 2nd Street (East side) and N Park Ave to Harshbarger Mixed

Use Path (South side)

Avoidance Area No. Type Treatment Location

Area 1 Historic Laval Rock Wall Avoidance with Protection in Place (hand excavations for work within five feet of the wall and protection of wall and existing vegetation within wall)

James E Rodgers Way to 2nd Street (East side) and N Park Ave to Harshbarger Mixed Use Path (South side)

Contractor Responsibilities:

• If vegetation clearing will occur during the migratory bird breeding season (March 1- August 31), the contractor shall avoid any active bird nests. If the active nests cannot be avoided, the contractor shall notify the Engineer to evaluate the situation. During the non-breeding season (September 1-February

28) vegetation removal is not subject to this restriction.

Docusign Envelope ID: 139F0576-4992-44DA-AF28-40C8DBB537CD

Project #SF025 Page 2 of 3

Contractor Responsibilities (cont):

• The following restricted work areas have been identified and require protection in place:

o Area 1: James E Rodgers Way to 2nd Street (East side) and N Park Ave to Harshbarger Mixed

Use Path (South side)

• The contractor shall employ hand excavation for replacing curbs and pavement within five feet of the wall and will protect the wall and existing vegetation inside the wall.

Avoidance Area No. Type Treatment Location

Area 1 Historic Laval Rock Wall Avoidance with Protection in Place (hand excavations for work within five feet of the wall and protection of wall and existing vegetation within wall)

James E Rodgers Way to 2nd Street (East side) and N Park Ave to Harshbarger Mixed Use Path (South side)

• The project improvements will be near historic features that run parallel to the pavement within the project area. These features include the historic lava rock wall and historic buildings, which are also along the University of Arizona maintenance road. The contractor shall be experienced working with historic features when working near these features and avoid disturbance to the maximum extent possible.

• The contractor shall take caution when working near the historic lava rock wall within the project area. No mechanical equipment shall be allowed to be used within 5 feet of the lava rock wall. The contractor shall employ hand tools within these limits to avoid damage to this historic feature.

• The contractor shall not place construction tools, equipment, or other materials on the top of the historic lava wall during construction activities.

• The contractor shall establish a 5 foot buffer around the historic lava wall and that area shall be delineated with methods approved by the University of Arizona Project Manager. If work needs to be completed within the 5 foot buffer area, the contractor shall contact the University of Arizona Project Manager prior to commencing work to ensure that University of Arizona staff is on site during these activities.

• Any damage to the historic lava rock wall shall be the responsibility of the Contractor to repair this feature according to University of Arizona and State Historic Preservation Office specifications at no additional cost to the University of Arizona or the City of Tucson. If damage occurs to the wall during construction, the Contractor shall cease work within 20 feet of the area of damage and contact the University of Arizona Project Manager immediately.

• For milling activities, the roadway surface preceding the milling machine shall be kept sufficiently wet so as to prevent the generation of any visible fugitive dust particles, but not so wet as to cause excess runoff from the roadway surface onto the roadway shoulder.

Project #SF025 Page 3 of 3