MORU_Stone_Hoop_Q_A_7_31_2023_0001.pdf

MORU Stone Hoop Questions:

1) For the concrete curb, the spec states that ‘The curb shall contain (2) #8 rebar continuous placed at 3 inches below top and 3” above bottom of form’. This is not industry standard and is a 1” dia rebar. To get that bent in a 20’ dia radius to install in the circular curb is not standard. #4 or #5 would be more suitable.

Can this be changed?

Government Response: Please change Section 1.2 A(d) to #4 rebar.

2) Will the Park locate the utilities?

Government Response: Yes, the successful offeror will be thoroughly briefed on utility locations.

3) Can the project be extended to 90 days instead of the 65 days as stated in the requirement?

Government Response: yes, the construction period will be changed to 90 days.

4) Will there be only 1 drain tie in at the center of the hoop that will be daylighted out to a rock erosion basin?

Government Response: Sheet 2 of 4, and Sheet 3 of 4 depict 3 drain inlets that are tied together and exit into an outfall area. The outfall area is shown to be approx. 5ft x 8ft and protected by 6” minus river stone erosion control area. See Plans, and Section 1.2 A (c) for complete description and drain inlet type.

5) Will there be parking spots and staging areas that will be blocked off for us throughout the duration of this project? Where will these areas be?

Government Response: Space is limited for this project; however, a portion of the closest bus parking area is being considered as a possible laydown area. The park facility manager will coordinate appropriate space for contractor use.

6) How will trucks delivering materials gain access to the construction area?

Government Response: All materials (compactable fill, concrete, boulders, etc.) will be delivered through the main entrance of the park, deliveries will follow the upper ring road to the work site. The space immediately around the work site is limited, careful planning and clear communication with the park facility manager will be required prior to mobilizing. The park will accommodate and assist the contractor by providing as much space as possible. There is also larger laydown space if needed to park equipment, trailers, or materials within 500 yds of the site.

7) Will there be special contractor access through the front gate for our employees, instead of being required to purchase parking passes to complete the work?

Government Response: yes, contractor will be issued parking passes for Logo Labeled Company

Vehicles. Employees driving personal vehicles and working on the project, or their employer should plan to purchase a $10 parking pass which is good for 1 year from the date of purchase.

8) What will the final design for the aluminum railing look like? Will this railing match one of the railing types already in this area? We notice that there were 3 different railing designs already in use near the new construction area.

Government Response: The railing is depicted in a photograph at the end of the Specifications, also See

Section 1.2 A (h) for requirements. The park facility manager will approve the final railing design and attachment method during the materials submittal process. See Specifications Part 2, 2.1 A

Manufacturers. Hansen Architectural Systems or Equal is listed as a reference of acceptable quality and style for contractors to provide an offer.

9) Is there a weight rating for where this project will be taking place? This project is being done on top of the parking garage and we will be bringing in heavy material that will be dead weight that will need to be staged on top as well as the rock and materials to be installed in the Stone Hoops area.

Any information on this will be helpful for any safety concerns with the structure.

Government Response: For information only, The NPS is providing the original design drawings and details for this area highlighting the pedestrian bridge. As part of the required construction scheduling plan, contractors are advised to develop a logical equipment use plan and construction sequence plan for review and approval by the park facility manager prior to Notice to Proceed.

10) To move rock materials into the Stone Hoop area, we would more than likely need to drive small construction vehicles over the curbed area at top of construction area. What information can you share about the construction of and strength of nearby curbing between the roadway and construction area?

Government Response: From reviewing the original construction drawing package details, the curbing is reenforced with #4 bars in a typical way. The concrete appears to have been specified at a strength of

4500psi. The curbing should be protected. Damage to any existing surfaces will be the responsibility of the contractor. Only a 10,000 lb. mini excavator, and skid steer loader are approved for use currently. If the contractor wishes to use other equipment, a proposal of use shall be provided to the park facility manager in advance for approval.

11) As the area is busy with park visitors to include those walking and driving near the construction area, what kind of barriers are required to ensure the public would have access to the nearby park entrance?

Government Response: It is anticipated that the visitation will be greatly reduced starting in September, however during construction activities if partial closure or full closure of the upper loop road or nearby lane is required, the contractor will be responsible for adequate safety devices and manpower to ensure public safety. The contractor may provide temporary fencing or flagging with free-standing weighted traffic cones/barriers. These cannot be staked or drilled/secured to asphalt or nearby pavement. The park will coordinate with the contractor for access needs and storage of materials prior to mobilization.