Q A_4-25-2016.pdf

Project No.: IA NPS RPRES 15(1) Project: Pavement Preservation Iowa

# General Technical Question Answer Date

1 X Who marks out the repair limits and the work areas?

FHWA will mark out the repair limits for the patching.

4/18/2016

2 X Do we have to supply and pay for a surveyor?

Yes in accordance to the SCR section 152 and should be incidental to other items

4/18/2016

3 X Are there any SWPPP permits that we would have to get or sign onto?

No SWPPP permits necessary to complete this work. 4/18/2016

4 X Should we put erosion control costs into the mobilization item?

Erosion control measures for stockpile sites are incidental to other times and it is up to the contractor to place the costs where approperiate.

4/18/2016

5 X plan page D.1 what is the length and width column?

The Length and Width are for the approximate roadway lengths and widths for the given streets.

4/19/2016

6 X Is there a count of the concrete patches on each street?

There is no exact count of the number of patches for each street. The patches will be marked during construction.

4/19/2016

7 X

In division 700 / in 712.01 to add sealant to match color of concrete. Does that mean that we cannot use hot poured tar for sealing joints in item No 10?

The item of "Sealing Cracks and Joints" will be done with the appropriate sealing material for the roadway type, concrete surfacing will use the color matched sealant.

4/19/2016

8 X Do you have a list of recommended contractors for different type of construction. example micro surfacing.

FHWA does not have a list of recommended contractors for the different types of construction.

4/20/2016

Check General or Technical

9 X

In the areas of concrete repair on this project it appears that all of the existing concrete joints have been sealed with hot poured tar, a black colored material. If we area not resealing all of the joints in an area and we area using a concrete matching color of sealer as stated in section 700, will it mater that there area 2 different colored sealers.

Joints will be sealed according to the specifications.

4/20/2016

10 X

What are the differences between the Cracks, Cleaning and Sealing and the Sealing Joints and Cracks that are paid by the mile and linear foot respectively.

The Cracks, Cleaning and Sealing paid for by the mile are in the asphalt roadways and shall be sealed with the hot pour asphalt joint compound.

The Sealing Joints and Cracks paid for by the linear foot are in the concrete roadways and shall be sealed with the silicon seal of matching color.

4/25/2016

11 X What is the average concrete pavement patch and concrete patch thickness?

As‐builts for the existing concrete pavement thickness for the roads and parking lots are not available.

The majority of the concrete repairs noted were for full panel replacement with a final determination of full versus partial panel replacements made by the PE when they are marked in the field during construction.

4/25/2016