Department of Transportation - South Dakotaapps.sd.gov/HC65C2C/EBS/lettings/Addendums/02T6A… ·  · 2016-12-05Department of Transportation Office of Project Development 700 E Broadway

Department of Transportation Office of Project Development 700 E Broadway Avenue Pierre, South Dakota 57501-2586 605/773-3268 FAX: 605/773-2614

December 5, 2016 ADDENDUM NO. 1

RE: Item #2, December 7, 2016 Letting - BRO 8003(23), PCN 02T6, Beadle County - Structure (2-12'x6' CIP RCBC) & Approach Grading

TO WHOM IT MAY CONCERN: The following addenda to the plans shall be inserted and made a part of your proposal for the referenced project. SPECIAL PROVISIONS: NO CHANGE

BID ITEM FILE: Bidders must log in to retrieve the addendum bid item file that must be loaded into the SDEBS

to incorporate the revisions listed here. Quantities for Bid Items were changed:

Bid Item 120E0010 “Unclassified Excavation from 62 to 89 CuYd Bid Item 120E0600 “Contractor Furnished Borrow Excavation” changed from

355 to 328 CuYd Bid Item 700E0210 “Class B Riprap” changed from 155.0 to 190.0 Ton Bid Item 734E0602 “Low Flow Silt Fence” changed from 498 to 516 Ft Bid Item 734E0610” Mucking Silt Fence” changed from 25 to 26 CuYd Bid Item 734E0620” Repair Silt Fence” changed from 249 to 258 Ft Bid Item 831E0110 “Type B Drainage Fabric” changed from 225 to 270 SqYd

PLANS: Please destroy sheets 2, 10, 11, 12, 18-23, and 25 and replace with the enclosed

sheets, dated 11/22/16 and 11/30/16.

Sheet 2: Quantities for Bid Items were changed: Bid Item 120E0010 “Unclassified Excavation from 62 to 89 CuYd Bid Item 120E0600 “Contractor Furnished Borrow Excavation” changed from

355 to 328 CuYd Bid Item 700E0210 “Class B Riprap” changed from 155.0 to 190.0 Ton Bid Item 734E0602 “Low Flow Silt Fence” changed from 498 to 516 Ft Bid Item 734E0610” Mucking Silt Fence” changed from 25 to 26 CuYd Bid Item 734E0620” Repair Silt Fence” changed from 249 to 258 Ft Bid Item 831E0110 “Type B Drainage Fabric” changed from 225 to 270 SqYd

Sheet 10: Riprap layout was revised in Plan view. Sheet 11: Earthwork balance note was revised.

Connecting South Dakota and the Nation

Sheet 12: Riprap layout and location of silt fence was revised in Plan view. Table of

Low Flow Silt Fence Locations was revised. Sheets 18 & 23: Estimated Quantities table was revised. Riprap layout was revised in

the Plan and Elevation views. Sheets 18-23: Drawings were rotated so stationing increases from the bottom to the

top of the page. Sheet 25: Riprap layout was revised.

Sincerely, Sam Weisgram Engineering Supervisor SW/cj CC: Jeff Senst, Aberdeen Region Engineer Brad Letcher, Huron Area Engineer

PROJECT STATE OF SOUTH

DAKOTA BRO 8003(23)

SHEET

2 26

TOTAL SHEETS

ESTIMATE OF QUANTITIES

Grading

BID ITEM

NUMBER ITEM QUANTITY UNIT

009E0010 Mobilization Lump Sum LS

009E3200 Construction Staking Lump Sum LS

009E3300 Three Man Survey Crew 40 Hour

120E0010 Unclassified Excavation 89 CuYd

120E0600 Contractor Furnished Borrow Excavation 328 CuYd

230E0010 Placing Topsoil 35 CuYd

250E0020 Incidental Work, Grading Lump Sum LS

632E2530 Type 3 Object Marker 4 Each

634E0110 Traffic Control Signs 109.0 SqFt

634E0120 Traffic Control Miscellaneous Lump Sum LS

634E0260 Type 3 Barricade, 6’ Single Sided 6 Each

634E0265 Type 3 Barricade, 6’ Double Sided 2 Each

734E0010 Erosion Control Lump Sum LS

734E0602 Low Flow Silt Fence 516 Ft

734E0610 Mucking Silt Fence 26 CuYd

734E0620 Repair Silt Fence 258 Ft

734E0900 Temporary Diversion Channel and/or Pipe 1 Each

Structure 03-055-280

BID ITEM

NUMBER ITEM QUANTITY UNIT

250E0030 Incidental Work, Structure Lump Sum LS

420E0200 Structure Excavation, Box Culvert 59 CuYd

421E0200 Box Culvert Undercut 185 CuYd

460E0120 Class A45 Concrete, Box Culvert 123.0 CuYd

480E0100 Reinforcing Steel 22,904 Lb

700E0210 Class B Riprap 190.0 Ton

831E0110 Type B Drainage Fabric 270 SqYd

SPECIFICATIONS

Standard Specifications for Roads and Bridges, 2015 Edition and Required Provisions, Supplemental Specifications, and Special Provisions as included in the Proposal.

ENVIRONMENTAL COMMITMENTS

An Environmental Commitment is a measure that SDDOT commits to implement in order to avoid, minimize, and/or mitigate a real or potential environmental impact. Environmental commitments to various agencies and the public have been made to secure approval of this project. An agency mentioned below with permitting authority can influence a project if perceived environmental impacts have not been adequately addressed. Unless otherwise designated, the Contractor’s primary contact regarding matters associated with these commitments will be the Project Engineer.

These environmental commitments are not subject to change without prior written approval from the SDDOT Environmental Office. The environmental commitments associated with this project are as follows:

COMMITMENT B1: CONSTRUCTION PRACTICES FOR STREAMS INHABITED BY THE TOPEKA SHINER

The US Fish and Wildlife Service (USFWS) have designated the following as Topeka Shiner streams associated with this project.

Table of Topeka Shiner Streams

Station Stream Name Ordinary High Water Elevation

5+00 creek - unnamed 1410.2

Action Taken/Required:

The Contractor shall adhere to the “Special Provision for Construction Practices in Streams Inhabited by the Topeka Shiner”.

Stream turbidity will be monitored during all stages of the project. Turbidity measurements should be taken in conjunction with normal storm water inspections.

The Contractor shall produce a comprehensive Construction Plan that includes all products, materials, and methods of construction and removal for temporary water barriers, cofferdams, and diversion channels including de-watering, handling, storage, and disposal of excavated material and pumped effluent throughout all phases of construction, including post-construction stabilization. This plan shall be approved by the SDDOT Environmental office prior to any work occurring in the above streams. Upon plan approval the Construction Plan shall be amended to the SWPPP document located in Section D – Erosion and Sediment Control Plans.

COMMITMENT B2: WHOOPING CRANE

The Whooping Crane is a spring and fall migratory bird in South Dakota that is about 5 feet tall and typically stops on wetlands, rivers, and agricultural lands along their migration route. An adult Whooping Crane is white with a red crown and a long, dark, pointed bill. Immature Whooping Cranes are cinnamon brown. While in flight, their long necks are kept straight and their long dark legs trail behind. Adult Whooping Cranes' black wing tips are visible during flight.

Action Taken/Required:

Harassment or other measures to cause the Whooping Crane to leave the site is a violation of the Endangered Species Act. If a Whooping Crane is sighted roosting in the vicinity of the project, borrow pit, or staging site associated with the project, cease construction activities in the affected area until the Whooping Crane departs and contact the Project Engineer. The Project Engineer will contact the Environmental Office so that the sighting can be reported to USFWS.

COMMITMENT C: WATER SOURCE

The Contractor shall not withdraw water with equipment previously used outside the State of South Dakota without prior approval from the SDDOT Environmental Office. Thoroughly wash all construction equipment before entering South Dakota to reduce the risk of invasive species introduction into the project vicinity.

Action Taken/Required:

The Contractor shall obtain the necessary permits from the regulatory agencies such as the Department of Environment and Natural Resources (DENR) and the United States Army Corps of Engineers (COE) prior to executing water extraction activities.

COMMITMENT D: WATER QUALITY STANDARDS

COMMITMENT D1: SURFACE WATER QUALITY

The creek is classified as warm water, marginal fishery with a total suspended solids standard of 150 milligrams/liter.

Action Taken/Required:

The Contractor is advised the South Dakota Surface Water Quality Standards, administered by the Department of Environment and Natural Resources (DENR), apply to this project. Special construction measures shall be taken to ensure the above standard(s) of the surface waters are maintained and protected.

COMMITMENT E: STORM WATER

Construction activities constitute less than 1 acre of disturbance.

Action Taken/Required:

At a minimum and regardless of project size, appropriate erosion and sediment control measures must be installed to control the discharge of pollutants from the construction site.

Revised 11/30/2016

Revised 11/30/2016

Revised 11/30/2016

Revised 11/30/2016

Revised 11/30/2016

Revised 11/22/2016

Revised 11/22/2016

Revised 11/22/2016

Revised 11/22/2016

Revised 11/30/2016

Revised 11/30/2016