Q&A_11-05-19.pdf

MT NPS GLAC 14(4) & MT Glacier 14(1) Rehabilitate Many Glacier Road & Many Glacier Road

# General Technical Question Answer Date

1 X

Per section 637.02, the government housing trailer pads are located at Glacier National Park Hudson’s Bay District. Could you please provide the exact location of these trailer pads?

Approximate GPS Coordinates for the trailer pads are 48°44’14.50” N, 113°25’39.33” W;

and 48°44’13.85” N, 113°25’37.78” W.

10/31/19

2 X

The required pH for furnished topsoil is between 6.0 and 8.0 per Subsection 713.01.

Since the pH for the existing topsoil on the project is between 5.5 and 5.8; can the specified pH for furnished topsoil be modified to match the existing topsoil pH, and reduce the cost of imported topsoil to be furnished?

This will be addressed under a forthcoming amendment.

11/4/19

3 X

Per Section 108.01 (c), the work at Sta: 716+46 is to be performed from March 1st to June 15th.

Section 108.01(g), indicates the culvert replacement work can not be done after the third Monday in May. Please clarify if this work be completed between the third Monday in May to June 15th?

This will be addressed under a forthcoming amendment.

11/4/19

4 X

Subsection 107.10(d)(5) says that all topsoil loads need to be tarped. If the source of topsoil is determined to be weed free and was not required to be treated, will WFLHD still require the loads to be tarped?

Yes. Comply with the requirements of Subsection 107.10(d)(5)

11/4/19

Check General or Technical

5 X

Per Section 108.01 (c), the work is to be done between March 1st and June 15th of any given year. Is it the intent of the contract to have the Contractor perform the work at this station during the high water period?

Perform work according to the requirements of Subsection 108.01(c).

11/4/19

6 X Can you please tell me the date, time and location for the pre‐bid meeting for this project?

See Pre‐bid Meeting information shown on Page A‐2c of the Notice to Bidders.

11/5/19

7 X

Will a Material Transfer Vehicle (Shuttle Buggy) be required on this project for asphalt? If so will it also be required in the parking lots and turn lanes?

A material transfer vehicle is not required for this project.

11/5/19

8 X

How will asphalt compaction testing be performed for the 1” wedge and leveling section? Testing compaction for a 1” lift is usually impossible to get accurate results.

See Subsection 403.09 and follow ASTM D 2950 as specified.

11/5/19

9 X

Section 104.05 states that loads over 21 feet long will require a pilot car with a permit and advance notice. Would this apply to belly dump loads of material entering the park? We will have hundreds of loads of material with belly dumps over 21’ long. Please clarify.

This will be addressed under a forthcoming amendment.

11/5/19

10 X

The physical data for the Akupini and Windy Creek bridges show a legal load of 36 tons for a Type 3S2 Truck. Is that the payload or the payload and the weight of the truck together?

A typical loaded Type 3S2 truck would be closer to 46 tons gross weight. If the gross weight of 36 tons is the max allowed it would increase the amount of truck loads by as much as 50%.

Please clarify the max load allowed over the bridges.

Yes, regarding the 3S2 truck, the structure load rating details shown in the bridge inspection reports is the truck with total weight and axle loads including truck and payload. This is standard legal load rating vehicle from the AASHTO Manual for Bridge Evaluation for load rating purposes. The bridge is not posted for restricted load, and is open to legal hauling. Any overload or permit vehicles will need to be evaluated for capacity.

11/5/19

11 X

Section 108.01 paragraph f limits the work at Many Glacier Hotel look road, parking lot, and horse pedestrian/bridge: and Entrance Station construction work to September 21st , 2020 to May 28th 2021. Paragraph g limits all culvert replacement work from the third Monday in September to the third Monday in May of any year.

The temperature specification for beginning asphalt paving must be at least 55 degrees F. In looking at historical temperatures it appears that the temperature may not be within asphalt paving ranges during the times specified, and if it is the allowable paving temperature window will be extremely short during the day. Can the paving low temperature specification be reduced for paving within those timeframes?

This has been an issue on other FHWA projects.

We’re not sure where you’re seeing the 55 degree F temperature specification for paving. Weather limitations for paving are shown in Subsection 401.07, and will not be changed.

11/5/19