J6 Design Clarifications.pdf

Glen Ellis Day Use Area Reconstruction Project Androscoggin Ranger District White Mountain National Forest Pinkham’s Grant, New Hampshire

Clarifications

Sheet No. CN-001

1. The Contractor will be required to post a bond with the New Hampshire Department of Transportation.

2. If suitable, on-site topsoil should be stripped and conserved for reuse. Additional material will be needed.

Sheet No. CN-002

1. The Schedule of Values is provided for informational purposes only. Note that some of the quantities are inaccurate (e.g., more than 5 boulders will need to be relocated, sign and pavement marking plan change, etc.). Contractor shall verify quantities and use the Bid Schedule provided in Part I of the contract documents.

Sheet No. CD-502

1. Add the following sign to the Sign Installation Detail: USFS FRD. Sign is custom. See Additional Installation Details sheet for verbiage. Submit shop drawing to USFS prior to order. Example layout:

2. Delete the following signs from the Sign Installation Detail: R3-2, R5-1, R6-2R.

3. Parking signs are to be installed behind the sidewalk. Per MUTCD Ch 2A.18 paragraphs

07 and 08, sign height to bottom of secondary signs (R7-8B) shall be no less than 6’-8”, not 4’ as shown in the detail.

Sheet No. CD-504

1. Place 6 inches of ¾” processed aggregate base stone under trench in the Precast Concrete Trench Detail. Outlet trench drain into an appropriately sized pipe extended to daylight and capped with a rodent guard. This work is incidental to the pay item.

Sheet No. CD-509

1. Construct a swale, a minimum of 4” deep, behind each Tunnel Wall with positive drainage to either the trench drain or existing culvert as appropriate. Topsoil and seed.

Incidental to wall.

Sheet No. CD-510

1. Add the following to Note 1: If it isn’t possible to blend new stone with the old in a way that looks natural, then all new stone shall be used for the walls.

2. Add the following to Note 3: NHDOT to approve shoring plans prior to installation.

3. Any new stone, and all reconstruction, shall meet these requirements from the 1938 original construction documents. “All rubble mortared masonry shall possess deeply raked joints. The mortar used shall be [dark] gray in color, lampblack added if necessary.

The stone used will be either a weathered gray or possess a color and tone [and texture] common to the rock or ledge formations in this immediate area. The masonry constructed should be in all cases be of as large stone as may be handled practically [by hand], and as may fit properly into the scheme of construction. No attempt will be made to lay stone in regular courses. To the extent that cut stone must be used, the fresh cut surfaces shall not be exposed unless their texture and color is in harmony with the general masonry unit concerned.”

4. Remove top row of (pink) stone from arch and replace with salvaged stone that resembles arch stone.

Sheet No. SRV-101

1. Remove and properly dispose of existing road signage, fee tube, grills, and bulletin boards.

2. Boulders needing to be moved may be left on-site if all fractured faces can be buried such that exposed rock is weathered. Work with Forest Service for scatter placement. Any fully fractured rock shall be removed from site.

Sheet No. CS-101

1. Note that the proposed silt fence location will need to encompass the existing asphalt roadway. These areas will also need to be topsoil, seeded, and mulched upon completion of the road obliteration and construction of the new trail.

Sheet No. CS-102

2. Relocate the Steel Pipe Double Leaf Swing Gate to Station 0+95. Relocate lock posts at proper location to secure the gate in the open position.

3. Traffic signage plan had been edited by the USFS. See installation details package for a new signage layout on CS-102.

Sheet No. CS-103

1. Proposed typical “picnic area” to include a leveled, loamed area approximately 10’ x 10’ located at the end of a gravel pathway as shown. Install a Pedestal Grill as provided by the Government at each location. Coordinate the location of the Pedestal Grill with the COR. Refer to the Pedestal Grill Detail attached for installation specifications. The picnic tables are on-site and will be reused. Contractor to move/store existing tables outside work zone and replace into a picnic area upon completion.

2. The proposed precast vault toilet shall be a CXT Double Cascadian, Boom Clovermist Double Vault, or approved equal.

3. Eliminate the Proposed Concrete Pad for Trash Cans. This is not required.

4. Note that there are no edits to the traffic signage shown on this sheet.

5. New fee tube will be provided by the USFS and installed by the Contractor at the locations designated. We anticipate providing solar-powered, credit card fee stations with pedestal. If not available, the government will provide cash-only tubes. Contractor is responsible for installation (concrete work and attachment). Refer to the Details attached for respective installation specifications.

6. New informational bulletin board will be provided and installed by the Contractor (not government-provided) at the locations designated. Refer to the Bulletin Board Details attached for installation specifications.

Sheet No. CS-104

1. Note that silt fence placement will need to leave existing Picnic Area #2 accessible to be demolished and seeded.

2. New fee tube will be provided by the USFS and installed by the Contractor at the locations designated. We anticipate providing solar-powered, credit card fee stations with pedestal. If not available, the government will provide cash-only tubes. Contractor is responsible for installation (concrete work and attachment). Refer to the Details attached for respective installation specifications.

3. New informational bulletin board will be provided and installed by the Contractor (not government-provided) at the locations designated. Refer to the Bulletin Board Details attached for installation specifications.

Sheet No. CS-202

1. This sheet has been revised and attached. Correct version has a revision date of 3/31/23 in upper right.

Sheet No. CG-105

1. Ramp leading to tunnel, approx. stations 0+75 to 1+81, shall be concrete sidewalk instead of gravel.

2. The correct scale of the sheet is 1” = 20’.

Additional Requirements:

1. The Contractor must notify the Department of Environmental Services in writing prior to the start of construction and upon completion of construction. Forms may be submitted electronically.

2. All stormwater practices shall be inspected and maintained in accordance with Env-Wq

1507.7 and the project’s Erosion and Sediment Control Plan (Plan). All record keeping required by the Plan shall be maintained by the Contractor, and be made available to the Department of Environmental Services upon request.

3. Although the Forest is paying for installation of temporary erosion control measures on two separate line items, only one Plan is required.

4. Note that White Mountain Road (NH Route 16) has a 66-foot right of way.

5. An excavation permit will not be issued until the Contractor is secured with a bond provided to the NHDOT.

6. When the project is completed, a copy of the as-built plans must be received at NHDOT

District One office, 641 Main Street, Lancaster, NH 03584 before the bond can be released.

7. All pipes are to be bedded and compacted per manufacturer’s requirements.

8. Site Demolition is to include the removal and proper disposal of the two picnic areas indicated to be removed, existing bulletin boards and fee tubes, old asphalt, and other existing improvements designated for removal.

9. The demolition of the toilet is to include the removal of the wooden building, pumping the sewage from the vault, removing the concrete vault top, filling the vault with flowable fill, and topsoil and seeding the area. Note: Existing toilet location can be found on Sheet No. SRV-101, west and slightly south of nail 8. There is a dark line with small SST label.

10. The New Entrance sign including the site identification sign, USDA credit line, and the Forest Service Shield will be provided by the Government. The Contractor shall install the sign according to the Entrance Sign Details attached.

Additional Installation Details attached:

1. Fee Tube—USFS design, cash-only 2-5. Fee Station—VenTek machine, credit card 6-8. Bulletin Board—USFS

9. Pedestal Grill

10. Sign Base – Wood Post Base

11. SST Building Floor Plan

12. SST Building Elevation

13. USFS Signage Plan CS-102

14. Fuss & O’Neill Revised CS-202