am0003.pdf

Am #0003 - 1

DEPARTMENT OF THE ARMY

Omaha District, Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

:NOTICE: Failure to acknowledge : Solicitation No. W9128F 08 R 0024 :all amendments may cause rejec- :

:tion of the bid. See FAR : Date of Issue: 13 May 2008 :52.214-3 of Section 00100 : Date of Opening: 16 Jun 2008

Amendment No. 0003 06 June 2008

SUBJECT: Amendment No. 0003 to Specifications and Drawings for Construction of:

Multiple Award Task Order Contract (MATOC) for Construction Missouri River Recovery Program:

Task Order No 0001: Fish And Wildlife Mitigation, Tyson Bend Project, Missouri River, Iowa & Nebraska

Solicitation No. W9128F 08 R 0024.

TO: Prospective Bidders and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Section 00 21 00 Page 16, add the following new paragraphs:

“22 (FAR 52.217-5) EVALUATION OF OPTIONS (JUL 1990).

Except when it is determined in accordance with FAR 17.206(b) not to be in the Government's best interests, the Government will evaluate offers for award purposes by adding the total price for all options to the total price for the basic requirement. Evaluation of options will not obligate the Government to exercise the option(s).

23 OPTIONS.

The Government may reject an offer as nonresponsive if it is materially unbalanced as to prices for the basic requirement and the option quantities.

An offer is unbalanced when it is based on prices significantly less than cost for some work and prices which are significantly overstated for other work. “

The Changes Listed Below Apply To Task Order 0001: Tyson Bend

(2) Section 00 73 00 Page 2, paragraph 1.1, line 4, delete “360 calendar days” and substitute “450 calendar days”.

(3) Section 02300A Page 3, paragraph 3.2, General Excavation, add the following to the end of the paragraph:

Am #0003 - 2

"If the Contractor elects to excavate materials mechanically, the Contractor will have to dispose of material to approved private sources. Unless otherwise provided in the contract, the Contractor shall obtain from the owners the right to dispose of material, pay royalties and other charges involved, and bear the expense of developing the disposal site, including rights-of-way for hauling. A plan for procedure and location for the disposal site shall be submitted to the Contracting Officers Representative for approval. This plan should indicate that the site meets all local, state, and federal restrictions for a soil disposal area."

(4) Section 02482 Page 4, delete paragraph 3.2.5.2 Disposal in Approved Fill Areas"

(5) Section 02482 Page 5, paragraph 3.4.1.1. Period, delete the first two sentences "The discharge of hydraulic . . . . approximately 19.2 feet." and substitute: “The discharge of hydraulic material into the Missouri River may be limited if low river flows occur during the navigation season based on river shoaling conditions.”

(6) Section 02482 Page 6, paragraph 3.4.1.3 Shoaling, delete the fourth sentence "If shoaling begins to . . . . Shown in the table below." and substitute “If shoaling begins to encroach upon the navigation channel or begins to create a hazard for recreation, the contractor at the direction of the COE, may be required to limit total dredge output volume (water and sediment) in accordance with the ratios shown in the table below. If limiting dredge output is not effective at improving conditions, the COE may require additional dredge limits to the point of stopping the dredge operation.”

b. Specifications (New and/or Revised and Reissued). Delete and substitute or add specification pages as noted below. The substituted pages are revised and reissued with this amendment.

Pages Deleted Pages Substituted or Added

General Wage Decision No IA080031 General Wage Decision No IA080031 Dated 06-06-2008

c. Drawings (Not Reissued). The following drawing sheets are revised as indicated below with latest revision date of 06 June 2008. These drawings are not reissued with this amendment.

(1) Sheet H1.01,

a) Section 2, delete "450 feet." and substitute with "285

Feet".

b) Note 3,

i) Delete the first two sentences "The Discharge of Hydraulic . . . . approximately 19.0 feet."

ii) Delete the last sentence "Note that the 8,000 gallons per minute." and substitute "Note that the allowable dredge discharge for Decatur river flows are also restricted for shoaling, see paragraph 3.4.1.3. in spec 02482 for details."

(2) Sheet H1.02, Note 3,

a) Delete the first two sentences reading "The Discharge of

Hydraulic . . . . approximately 19.0 feet."

b) Delete the last sentence "Note that the . . . . 8,000 gallons per minute." and substitute "Note that the allowable dredge discharge

Am #0003 - 3 for Decatur river flows are also restricted for shoaling, see paragraph

3.4.1.3. in spec 02482 for details."

(3) Sheet H3.01, Note 2, delete the first two sentences "The Discharge of Hydraulic . . . . approximately 19.2 feet."

2. This amendment is a part of the bidding papers and its receipt shall be acknowledged on the Standard Form 1442. All other conditions and requirements of the specifications remain unchanged. If the bids have been mailed prior to receiving this amendment, you will notify the office where bids are opened, in the specified manner, immediately of its receipt and of any changes in your bid occasioned thereby.

a. Hand-Carried Bids shall be delivered to the U.S. Army Corps of Engineers, Omaha District, Contracting Division, 1616 Capitol Avenue, Omaha, Nebraska 68102-4901.

b. Mailed Bids shall be addressed as noted in Item 8 on Page 00010-1 of Standard Form 1442.

3. Bids will be received until 2:00 p.m., local time at place of bid opening, 16 Jun 2008.

Attachments:

General Wage Decision listed in 1.b above Request For Information - MATOC (For Information Only)

U.S. Army Engineer District, Omaha Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

05 June 2008

MFS/2184

Please note our new address:

U.S. Army Engineer District, Omaha Corps of Engineers, 1616 Capitol Avenue Omaha, NE 68102-4901.

All proposals will be received at this new address.

IA20080031 Page 1 Am #0003

GENERAL DECISION: IA20080031 06/06/2008 IA31

Date: June 6, 2008 General Decision Number: IA20080031 06/06/2008

Superseded General Decision Number: IA20070031

State: Iowa

Construction Type: Heavy River Work

Counties: Iowa Statewide.

HEAVY CONSTRUCTION PROJECTS FOR WORK ON OR PERTAINING TO THE

MISSISSIPPI AND MISSOURI RIVERS.

Modification Number Publication Date 0 02/08/2008 1 02/15/2008 2 05/23/2008 3 06/06/2008

CARP0004-007 01/01/2008

SCOTT COUNTY

Rates Fringes

CARPENTER........................$ 26.40 11.62

* ENGI0150-008 06/01/2008

CEDAR, CLINTON, DES MOINES, LEE, LOUISA, MUSCATINE AND SCOTT

COUNTIES

Rates Fringes

Power equipment operators:

GROUP 1.....................$ 26.30 19.10

GROUP 2.....................$ 23.65 19.10

GROUP 3.....................$ 22.60 19.10

POWER EQUIPMENT OPERATOR CLASSIFICATIONS

GROUP 1:Cranes; Shovel; Clamshell; Dragline; Backhoe;

Derrick; Tower Crane; Cable Way; Concrete Spreaders (servicing 2 pavers); Asphalt Spreaders; Asphalt Mixer;

Plant Engineers; Dipper Dredge Operator; Dipper Dredge Cranemen; Dual Purpose Trucks (Boom or Winch); Leverman or Engineman (Hydraulic Dredge); Mechanics; Paving Mixer with tower attached (two operators required); Piledriver; Boom Tractor, Stationary, Portable or Floating Mixing Plant;

Trenching Machine (over 40 HP), Building Hoist (2 drums), Hot Paint Wrapping Machine; Cleaning & Priming Machine, Backfiller (throw bucket), Locomotive Engineer; qualified Welder; Tow or Push Boat; Concrete Paver; Seaman trav-L-plant or similar Machine; CMI Autograder or similar

IA20080031 Page 2 Am #0003 machine; Slip Form Paver; Caisson Augering Machine, Mucking Machine, Asphalt Heat Planer Unit; Hydraulic Cranes; Mine Hoists; Athey; Barber-Green; Euclid or Haiss loader;

Asphalt Pug Mill; Fireman & Drier; Concrete Pump; Concrete Spreader(servicing 1 paver); Bulldozer; Endloader; Log Chippers or similar machines; Elevating Grader;Group Equipment Greaser, LeTourneaupul & similar machines; DW-10;

Hyster Winch & similar machines; Motor Patrol; Power Blade;

Push Cat; Tractor pulling elevating grader or power blade;

Tractor operating scoop or scraper, Tractor with power Attachments; Roller on Asphalt or Blacktop; single drum hoist; Jaeger mix & Plant Machine; Pipe bending Machine;

Flexaplane or similar Machine, Automatic Curbing Machine;

Automatic Cement & Gravel batch plants (1 stop set-up);

Seaman pulvi-mixer or similar Machine, Blastholer;

Self-propelled Rotary Drill or similar Machines; Work Boat;

Combination concrete finishing & float; Self-propelled sheep foot roller or compactor (used in conjunction with a grading spread); Asphalt Spreader Screed Operator; Slusher;

Apsco Spreader or similar Machine; Forklift (over 6000 lbs.

capacity or working at heights above 28 ft.); Concrete Conveyors, Chip Spreader; Underground Boring Machine;

Straddle Carrier; Hydro-Hammer; Hydraulic Pumps or power Units driven by any power source (except manually); used to hoist or lift machinery or material; Off Road Haul Units.

GROUP 2: Asphalt Boosters; Firemen and Pump Operators at Asphalt Plants; Mud Jack; Concrete Finishing Machine, Form Grader with Roller on Earth; Mixers (3 Bag to 16-E); Power Operated Bull Float; Tractors without Power Attachments;

Dope Pots (Agitating Motor); Dope Chop Machines;

Distributors (back end); Portable Machine Fireman; Power winch on paving work; self- propelled roller or compactor (other than provided for above); Pump Operator (more than one well-point pump); Portable Crusher Operator, Trench Machine (under 40 hp); Power Subgrader (on forms) or similar machines, Forklift (6000 lb. or less cap.); Gypsum Pump; Conveyor over 20 hp.; Fuller Kenyon Cement Pump or similar machines; Light Plant; Mixers (1 or 2 bag); Power Batching Machine (Cement Auger or Conveyor); Boiler (Engineer or Fireman); Mechanical Broom; Automatic Cement and Gravel Batch Plants (two or three stop set-up); Small rubber-tired Tractors (nor including backhoe or endloaders); Self-propelled Curing Machine; Driver on Truck crane or similar machines.

GROUP 3: Oilers; Mechanical Heater (other than Steam Boiler), Belt Machine, Small Outboard Motor Boats Safety Boat & Lift Boat), Engine Driven Welding Machine & Small tractors (used to unroll wire mesh), Water Pumps, Air Compressors, Permanent Automatic Elevators.

ENGI0234-002 12/01/2007

REMAINING COUNTIES

Rates Fringes

IA20080031 Page 3 Am #0003

Power equipment operators:

GROUP 1.....................$ 26.20 12.10

GROUP 2.....................$ 25.60 12.10

GROUP 3.....................$ 23.30 12.10

POWER EQUIPMENT OPERATOR CLASSIFICATIONS

GROUP 1: Power shovel, crane, backhoe (1.5 yd and over), dragline, hoisting engineer (steel erection), motor patrol (finish), piledriver, master mechanic, sideboom tractor, horizontal boring machine, finish dozer, central mix plant, paver or self propelled spreader, tow, safety, or push boat, CMI paver, subgrader or equivalent, asphalt plant, pushcat, mechanics - welders, churn or rotary drill, trenching machine (Cleveland 80 or similar capacity), asphalt laydown, asphalt screed, asphalt heater planer, concrete pump, self-propelled curb machine (with seat), loader operator (2 cu yd and over), scraper, dozer (rough), group greaser, asphalt roller, backhoes of any size when digging building footings.

GROUP 2: Motor patrol (rough), concrete curb breaking machine, loader (under 2 yd), backhoe under 1/2 yd, concrete widening machine, paver breaker, Barber Green, Haiss loader or similar machines, crawler tractor (pulling disc, sheepsfoot, ripper, or flat roller), self-propelled sheepsfoot roller, self-propelled roller, dristributor, screening and washing plant, self-propelled vibrating compactor, trenching machine, steel placing machine, conveyor, finishing machine (on concrete), flex plane, bullfloat, form grader, self-propelled elevator grader, water wagon on compaction

GROUP 3: Boiler, mechanical boom, oiler, welding machine, Pump (other than dredge), boom and winch trucks, compressor, tank car heater (combination boiler and booster), pumps on well points and deep wells for dewatering, truck crane combination driver-oiler, concrete curbing machine, batch plant (dry), spreader attachments, utility tractor with attachments, light plant mechanical heater, pumps over 3", farm type tractor (pulling disc, harrow or roller).

IRON0111-005 05/01/2008

(EXCLUDING DES MOINES, LEE, DUBUQUE, CLAYTON, ALLAMAKEE,

HARRISON, POTTAWATTAMIE, MILLS, FREMONT, JACKSON, CLINTON,

LOUISA, MUSCATINE, WOODBURY AND MONONA COUNTIES)

Rates Fringes

Ironworker.......................$ 26.16 17.22

LABO0309-005 01/01/2008

SCOTT COUNTY

IA20080031 Page 4 Am #0003

Laborers

GROUP 1.....................$ 23.41 11.20

GROUP 2.....................$ 23.91 11.20

GROUP 3.....................$ 24.54 11.20

LABORER CLASSIFICATIONS

GROUP 1 - Flagman; Dumpman; Spotter; Broom Man; Landscaper;

Planting & Removal of Trees; Fencing Laborers; Cleaning of Forms or Lumber (in Bone Yard); Laying of Sod; Moving and/or Maintenance of Flares & Barricades; Operation of all Hand, Electric, Air, Hydraulic or Mechanically Powered Tools under the the Laborers' including Jackhammer, Tamper, Air Spade, Auger, Concrete Saw, Chain Saw, Utility Saw, Rock Drill, Vibrator; Mortar Mixer; Power & Hand Saw (When Clearing Timber); General Laborer; Material Handler; Form Handler; Concrete Dumper; Puddler; Explosives Handler;

Center Strip Handler & Installer; Prime Mover or any Mechanical Device Taking the Place of Concrete Buggy or Wheelbarrow; Sandpoint Setter; Asphalt Kettleman; Sheeting Hammer Driver; Laying & Jointing of Telephone Conduit; Gas Distribution Man; Pipe Setter On Lateral, Drain Tile, Culvert Pipe & Storm Sewer; Catch Basin Lead; Catch Basin;

Manholes; Batch Dumper; Tank Cleaner; Cofferdam Worker;

Bankman on Floating Plant; Jointman With Pipelayer; Back-up Man (Corker, Joint Maker) With Pipe Setter On Sewer & Water Main; Batterboard Man or Laser Operator on Sewer & Water Main; Laborer in Ditch or Tunnel, on Sewer or Water Main & Telephone Conduit, Cutters; Burners; Torchman; Gravel Box Man; Asphalt Plant; Concrete Plant; Deck Hand; Unloading of Steel & Rebar; & Wrecking Laborers

GROUP 2 - Asphalt Raker or Luteman; Pipe Setter on Sewer or Water Main; Gunnite Nozzle Man; Asphalt or Concrete Curb Machine Operator; Concrete Burning Machine Operator; & Coring Machine Operator; Hazardous Waste Worker; Asbestos Abatement Worker

GROUP 3 - Concrete Specialist (All work relating to but not limited to pouring, striking of & finishing all concrete surfaces)

PLAS0544-001 10/01/2004

SCOTT COUNTY

Rates Fringes

CEMENT MASON/CONCRETE FINISHER...$ 22.13 9.86

SUIA2002-002 12/01/2007

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CARPENTER

Mississippi River...........$ 24.29 7.83 Missouri River..............$ 24.29 7.83

CEMENT MASON/CONCRETE FINISHER...$ 24.67 8.90

Ironworkers: (setting of all structural steel and reinforcing steel installation:)

Des Moines and Lee Counties....................$ 23.50 13.81 Dubuque, Clayton & Allamakee Counties..........$ 24.34 12.88 Harrison, Pottawattamie, Mills & Fremont Counties....$ 25.92 9.45 Jackson, Clinton, Louisa & Muscatine Counties........$ 26.30 17.08 Woodbury & Monona Counties..$ 20.95 8.79

Laborers:

Class A Mississippi River..........$ 25.08 7.60 Missouri River.............$ 23.08 7.60 Class AA Mississippi River..........$ 25.93 7.60 Missouri River.............$ 23.93 7.60 Class B Mississippi River..........$ 23.43 7.60 Missouri River.............$ 21.43 7.60 Class C Mississippi River..........$ 20.35 7.60 Missouri River.............$ 18.35 7.60

TRUCK DRIVER.....................$ 20.95 8.90

LABORERS CLASSIFICATIONS

GROUP A: Sandblaster, gunite nozzleman, diamond and core drills powered by air, sewer utility man and laser operator, all work performed by laborers working from a bos'n chair, swinging stage, tagline or block and tackle, drill operators of air tracks, wagon drills and similar drills, steel highway formsetter, stingman, powerman blaster, asphalt luteman and rakers, asphalt distributor operators, concrete saw operators, and skilled concrete laborers, deckhands.

GROUP AA: Pipelayer, concrete specialist; tunnelman

GROUP B: Tree climber, form setter, potmen (not mechanical), depth grade checker, and cutting torches on demolition work, trencher operator (walk behind), safety boat operators, power buggyman, concrete and paving sawmen, form line and expansion joint assembler, bottomman, caulker-jointer and painter (striper), timber and chair-sawman, mechanical stresser or strechman on

IA20080031 Page 6 Am #0003 post-tension or pre-stressed concrete on or off job, form tamper, air-gas and electric tool opertors-vibrators- Barcohammer-Pavec-tampers-electric drills-hammers and jackhammers, tree groundman, chair tenders-tool room men and checkers, concrete processing material and monitors, stringman on paving work, broom operator (not self propelled), fence erectors, handling and placing of metal mesh, dowel bars, reinforcing baars and chairs, dumpmen and spotters, carring reinforcing rods, corrugated culvert pipe, stake chaser, seeding or mulching and planting of trees shrubs and flowers, water pumps (under 3"), compressors (under 400 CFM), general laborer, rodman, hot asphalt labor, carpenter tender, concrete finisher tender.

GROUP C: Waterboy, flagman, flagger/traffic control, watchman.

TEAM0371-001 05/01/2006

SCOTT COUNTY

Rates Fringes

Truck drivers:

GROUP 1.....................$ 25.93 7.50+a GROUP 2.....................$ 26.33 7.50+a GROUP 3.....................$ 26.53 7.50+a GROUP 4.....................$ 26.78 7.50+a GROUP 5.....................$ 27.58 7.50+a

Footnote:

a. PENSION: $27.40 per day.

TRUCK DRIVERS CLASSIFICATIONS

GROUP 1: Drivers on 2 axle trucks hauling less than 9 tons , air compressor and welding machines and brooms, including those pulled by separate units, warehousemen, greasers and tiremen, pick- up-trucks when hauling material, tools or men to and from and on the job site, and forklifts up to 6,000 lb capacity

GROUP 2: 2 or 3 axle trucks hauling more than 9 tons but hauling less than 16 tons. A-frame winch trucks, or similar equipment when used for transportation purposes. Forklifts over 6,000 lb capacity, winch trucks, four axle combination units, hydrolift Trucks, vactor trucks or simiolar equipment when used for transportation purposes..

GROUP 3: 2, 3, and 4 axles hauling 16 tons or more, water pulls, 5 axles or more combination units, water pulls, articulated dump trucks

GROUP 4: Oil distributors, lowboys

GROUP 5: Drivers who require special protective clothing while employed on hazardous waste work.

IA20080031 Page 7 Am #0003

WELDERS - Receive rate prescribed for craft performing operation to which welding is incidental.

Unlisted classifications needed for work not included within the scope of the classifications listed may be added after award only as provided in the labor standards contract clauses (29CFR 5.5 (a) (1) (ii)).

In the listing above, the "SU" designation means that rates listed under the identifier do not reflect collectively bargained wage and fringe benefit rates. Other designations indicate unions whose rates have been determined to be prevailing.

WAGE DETERMINATION APPEALS PROCESS

1.) Has there been an initial decision in the matter? This can be:

* an existing published wage determination

* a survey underlying a wage determination

* a Wage and Hour Division letter setting forth a position on a wage determination matter

* a conformance (additional classification and rate) ruling

On survey related matters, initial contact, including requests for summaries of surveys, should be with the Wage and Hour Regional Office for the area in which the survey was conducted because those Regional Offices have responsibility for the Davis-Bacon survey program. If the response from this initial contact is not satisfactory, then the process described in 2.)

and 3.) should be followed.

With regard to any other matter not yet ripe for the formal process described here, initial contact should be with the Branch of Construction Wage Determinations. Write to:

Branch of Construction Wage Determinations Wage and Hour Division U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

2.) If the answer to the question in 1.) is yes, then an interested party (those affected by the action) can request review and reconsideration from the Wage and Hour Administrator (See 29 CFR Part 1.8 and 29 CFR Part 7). Write to:

Wage and Hour Administrator U.S. Department of Labor

IA20080031 Page 8 Am #0003

200 Constitution Avenue, N.W.

Washington, DC 20210

The request should be accompanied by a full statement of the interested party's position and by any information (wage payment data, project description, area practice material, etc.) that the requestor considers relevant to the issue.

3.) If the decision of the Administrator is not favorable, an interested party may appeal directly to the Administrative Review Board (formerly the Wage Appeals Board). Write to:

Administrative Review Board U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

4.) All decisions by the Administrative Review Board are final.

END OF GENERAL DECISION

Request For Information - MATOC

C1.01, Mechanical Excavation Option Question: On page C1.01 of the plan it refers to a ‘Mechanical excavation’ option. What is intended as a possible on-land disposal area as you describe it as a ‘Government approved landfill’? Is it not a necessity to look for a more environmentally friendly way to put the soil on land rather than dump it into the River? There is abundant farm land close by to utilize and return to farm land at completion.

Answer: The Corps has obtained all of the permits and environmental compliance documentation necessary to allow disposal of the dredged material into the Missouri River. If the contractor chooses to dispose of the material on land, the disposal site must be located outside of the designated floodway as designated on the effective Flood Insurance Rate Map (FIRM) for Harrison County (Panel #190143 0175A). If the contractor chooses to dispose of the material in the flood plain, the material shall not be piled any higher than 0.5 feet, and no material shall be placed in wetlands. In addition, the contractor must submit the location of the disposal area to the Contracting Officer's Representative (COR) per paragraph 1.3 of specification 02300A.

Section 02482, para. 3.2.5.3, Approval in approved fill areas.

Question: If a contractor has acquired permission to dispose of excavated material off-site adjacent to the project, but this area is in a flood plain. Since we are removing 1,000,000 cyd. of area from this flood plain, it would seem possible that we return a portion of it to the flood plain.

The adjacent property would be raised 1 to 2 feet to level the area and make it productive farm ground. Would a situation such as this be approved for a disposal?

Answer: The Corps' Floodplain Development Permit for this project states "Excess spoil material resulting from the excavation shall be removed from the flood plain or may be spread thinly (less than 0.5 feet thick) outside the floodway as designated on the Harrison County FIS. The spoil material shall not be placed in an area that is, or could be classified as a regulated wetland."

Based on this statement, it would be acceptable for a contractor to dispose of the spoil on the farmland he has obtained permission to spoil on as long as it is outside the designated floodway and he does not pile the dirt any higher than 0.5 feet. Anything different would require a new floodplain development permit from the IDNR, and that process could take 3 to 5 months with no guarantee of obtaining the permit. We would also need to verify that no wetlands would be filled.

In addition, the contractor must submit the location of the disposal area to the Contracting Officer's Representative (COR) per paragraph 1.3 of specification 02300A.

Section: 007200, Clause 52.244-2 "Subcontracts" Question: Are there any restrictions on subcontracting with other firms or teams which are part of the short list of approved bidders?

Answer: Presently there is no short list or pool for this solicitation so there are no restrictions for the overall contract or Task Order No. 0001. The pools from previous MRRP contracts do not apply to this solicitation. Please refer to Section 002200 on how proposals with subcontracts should be structured. Once the contracts are awarded to the pool of prime contractors, each task order will contain FAR Clause 52.244-2 "Subcontracts". Paragraph (d) of the clause will contain the names of the prime contractors and primary subcontractors, if applicable. Prior to entering into subcontracts with the contractors listed in the clause, consent of the contracting officer is required. This is to ensure fair competition. If a prime contractor includes a subcontractor with some enforceable agreement in the original proposal and a contract is awarded, that shall be considered consent of the contracting officer for that prime contractor to enter into subcontracts with that particular subcontractor. No further consent will be required.

Question: On previous backwater excavations, large amount of buried trees were encountered.

Is there any additional information available regarding the subsurface conditions within the backwater area?

Answer: The Corps has no specific information regarding the existence or location of buried trees, however the project area was once part of the Active Missouri River channel, so buried trees may be encountered during construction.

Question: Dredging in the chute on the optional bid items requires a minimum bottom width at grade level. Would the USACE accept an equal cross-sectional area for channel flow, rather than the design trapezoid, i.e. higher on the edges and lower in the middle?

Answer: Any proposed section change would need to be submitted to be verified with hydraulic modeling. However, it is not likely that the COE would accept any proposed chute profile that does not maintain the proposed channel invert or results in a higher energy loss section. A deeper invert is not acceptable as it does not meet the environmental objectives of the project.