Am0001.pdf

Am #0001 - 2

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 0025 :all amendments may cause rejec- :

:tion of the offer. See FAR : Date of Issue: 13 May 2008 :52.215-1 of Section 00 21 00 : Date of Receiving Proposals:

16 Jun 2008

Amendment No. 0001 23 May 2008

SUBJECT: Amendment No. 0001 to Request for Proposal Solicitation Package for Construction of:

Multiple Award Task Order Contract (MATOC) For Construction Missouri River Recovery Program Task Order No 0001: Langdon Bend Wetland Restoration Project Missouri River, Ne

Solicitation No. W9128F 08 R 0025.

TO: Prospective Proposers 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 22 00 Page 10, paragraph 3.1, line 1, delete

"The Government intends to award up to five contracts" and substitute "The Government intends to award up to four contracts".

(2) Section 00 72 00 Page 20, Clause 22 FAR 52.216-18 add “ See

Section 00 73 00 for contract dates.”

(3) Section 00 72 00 Page 20, Clause 23 FAR 52.216-19 add “See

Section 00 73 00 for limits on task orders.”

(4) Section 00 72 00 Pages 21, 22 and 26, delete the following Clauses: 26. FAR 52.219-8, 27. FAR 52.219-9, 29. FAR 52.219-16.

(5) Section 00 72 00 Page 107, add the following clause:

“1.33 FAR 52.216-27 Single or Multiple Awards (Oct 1995)" as follows:

The Government may elect to award multiple delivery order contracts or task order contracts for the same or similar supplies or services to two to five sources under this solicitation.”

(6) Section 00 73 00 Page 2, paragraph 1.1, lines 1 and 2, delete "Missouri River Mitigation Project" and substitute "Missouri River Recovery Project".

(7) Section 00 73 00 Page 3, paragraph 1.4, insert the following

Am #0001 - 3

Subparagraph (d):

“ (d) Contracting Officers from the U.S. Army Corps of Engineers, Kansas City District and Omaha District are authorized to place task orders under the resulting contract.”

(8) Section 00 73 00 Page 3, paragraph 1.5.3, delete incomplete sentence reading: "The Contractor is not obligated to honor."

(9) Section 00 73 00 Page 3, paragraph 1.5, Insert the following

Subparagraph 1.5.5:

“1.5.5 GEOGRAPHIC LIMITATIONS

Projects could be accomplished in either the Omaha District or Kansas City District boundaries, in the states of Iowa, Kansas, Missouri, Nebraska, or South Dakota. All work will be done within the Missouri River main channel, the Missouri River flood plain, and the lower portions of larger tributaries, between Gavins Point Dam, SD and the mouth of the river near St. Louis, MO.”

(10) Section 00 73 00 Page 5, paragraph 1.10, title, delete

"Notice of Total Small Business Set-Aside" and substitute "Notice of Total HUBZone Set-Aside".

(11) Section 00 73 00 Page 2 (Langdon Bend Project), paragraph

1.1, line 4, delete “270 calendar days” and substitute “450 calendar days”.

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

--- Attachment To Section 00 22 00 Attachment #1: Construction Materials, Products, Equipment, And Systems

--- Soils Boring Information (Langdon Bend Project) (add to the end of the specifications)

c. Drawing (Reissued). The following drawing sheet is revised with latest revision date of 23 May 2008, and reissued with this amendment.

(1) Sheet C-102

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

a. Hand-Carried Proposals shall be delivered to the U.S. Army Corps of Engineers, Omaha District, Contracting Division, 1616 Capitol Ave, Omaha NE 68102-4901, Omaha, Nebraska 68102-1618.

Am #0001 - 4

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

3. Offers will be received until 2:00 p.m., local time at place of receiving proposals, 16 Jun 2008.

Attachments:

Attachment to Section 00 22 00 Soil Boring Information Pre-proposal Attendance (For Information Only) Pre-proposal Questions and Answers (For Information Only) Langdon Bend Site Visit Attendance (For Information Only)

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

23 May 2008

MFS/2184

Attachment #1 Am #0001 Section 00 22 00

Attachment #1

CONSTRUCTION MATERIALS, PRODUCTS, EQUIPMENT, AND SYSTEMS

Equipment Type Manufacturer Make Model

Results of on site soils investigation for the Langdon Bend Mitigation Project.

Submitted by Mark Willoughby Soil Scientist USDA-NRCS

Soil Borings were done generally to a depth of 60 inches and the individual spots were marked using GPS equipment. A map with these points referenced is included with this report. These textures and unified classifications are field estimates. All measurements are in inches.

Waypoint #1: 0-22” silty clay--CH 22-36” silty clay loam—CL 36-60” very fine sandy loam—ML layer is saturated

WP#2 0-12” silty clay—CH 12-60” very fine sandy loam—ML saturated at 60”

WP#3 0-15” silty clay—CH 15-60” very fine sandy loam stratified with layers of silt loam 1 to 3 in. thick—ML, saturated @ 60”

WP#4 Bottom of ditch 0-26” silty clay—CH 26-60” very fine sandy loam – ML saturated @ 30”

WP#5 Bottom of ditch 0-21” silty clay—CH 21-60” very fine sandy loam—ML few strata of silt loam 1-3” thick, saturated @30”

WP#6 Bottom of ditch 0-24” silty clay—CH 24-60” very fine sandy loam –ML Saturated @36”

WP#7 0-7” silty clay—CH 7-38” very fine sandy loam –ML 38-60” silt loam ML-CL

WP#8 0-14” silty clay—CH 14-30” silt loam—ML-CL 30-60” very fine sandy loam—ML, with few strata of silt loam 1-3” thick

WP#9 0-20” silty clay—CH 20-60” very fine sandy loam-ML, with few strata of silt loam 1-3” thick

WP#10 0-48” silty clay—CH 48-60” very fine sandy loam-ML

Subpoint adjacent to #10 in bottom of ditch 0-12” clay- CH 12”+ fine sand SM saturated

WP#11 0-60” silty clay--CH Subpoint 11 adjacent in bottom of ditch, 0-24” silty clay CH saturated

WP#12 0-60” silty clay—CH Subpoint 12 adjacent in bottom of ditch, 0-24” silty clay-CH saturated

WP#13 0-48” silty clay—CH 48-60” very fine sandy loam--ML Subpoint 13 adjacent in bottom of ditch, 0-24” silty clay-CH saturated

WP#14 0-60” silty clay—CH Subpoint 14 adjacent in bottom of ditch, 0-24” silty clay-CH saturated

WP#15 0-48” silty clay-CH 48-60” very fine sandy loam-ML Subpoint 15 adjacent in bottom of ditch, 0-24” silty clay-CH saturated

WP#16 0-33” silty clay—CH 33-60” very fine sandy loam –ML saturated at 40”

Subpoint 16 adjacent in bottom of ditch, 0-18” silty clay-CH saturated 18”+ fine sand SP saturated

WP#17 0-48” silty clay—CH 48-60”very fine sandy loam

Subpoint 17 adjacent in bottom of ditch, 0-18” silty clay-CH saturated 18”+ fine sand SP saturated

WP#18 a shallow natural drain coming from the west into the main ditch

WP#19 0-60” silty clay—CH

Subpoint 19 adjacent in bottom of ditch, 0-14” silty clay-CH saturated 14”+ fine sand SP saturated

WP#20 0-20” silty clay—CH 20-32” silty clay loam—CL 32-60” very fine sandy loam—ML saturated at 50”

Subpoint 20 adjacent in bottom of ditch, 0-14” silty clay-CH saturated 14”+ fine sand SP saturated

WP#21 0-27” silty clay—CH 27-60” very fine sandy loam-ML, saturated @50”

Subpoint 21 adjacent in bottom of ditch, 0-24” silty clay saturated

WP#22 0-14” silty clay—CH 14-20” silty clay loam—CL 20-40” Very fine sandy loam--ML stratified with thin layers of silt loam 40-60” fine sand—SP

Subpoint 22 adjacent in bottom of ditch, 0-14” silty clay-CH saturated 14”+ fine sand SP saturated

WP#23 0-26” silty clay—CH 26-60” silty clay loam—CL

Subpoint 23 adjacent in bottom of ditch, 0-15” silty clay-CH saturated 15”+ fine sand SP saturated

WP#24 0-29” silty clay—CH 29-33” silty clay loam—CL 33-60” stratified very fine sandy loam/ silt loam—ML-CL saturated

Subpoint 24 adjacent in bottom of ditch, 0-24” silty clay-CH saturated 24”+ fine sand SP saturated

WP#25 0-16” silty clay—CH 16-60” very fine sandy loam --ML, stratified with 1-3” layers of silt loam Saturated @55”

WP#26 0-32” silty clay—CH 32-44” silty clay loam-CL 44-60” very fine sandy loam—ML , saturated

WP#27 0-42” silty clay—CH 42-52” silty clay loam—CL 52-60” silt loam—ML-CL saturated

WP#28 0-32” silty clay—CH 42-50” silty clay loam—CL 52-60” fine sand--SP, saturated

WP#29 0-12” silty clay—CH 12-48” silty clay loam—CL 48-60” silt loam—ML-CL saturated

WP#30 0-24” silty clay—CH 24-48” silty clay loam-CL 48-60” very fine sandy loam-ML saturated

WP#31 0-36” silty clay—CH 36-48” silty clay loam—CL 48-60” silt loam stratified with thin layers of very fine sandy loam, ML-CL Saturated @ 48”

WP#32 0-15” silty clay—CH 15-27” silty clay loam—CL 27-60” silt loam stratified with thin layers of very fine sandy loam, ML-CL Saturated @ 48”

WP#33 0-12” silty clay—CH 12-18” silty clay loam—CL 18-60” silt loam stratified with thin layers of very fine sandy loam, ML-CL 55-60 inches very moist

WP#34 0-30” silty clay—CH 30-55” silty clay loam—CL 55-60” fine sand—SP saturated

WP#35 0-20” silty clay—CH 20-48” silty clay loam—CL 48-60” very fine sandy loam—ML saturated

WP#36 0-28” silty clay—CH 28-31” silty clay loam—CL 31-60” very fine sandy loam—ML saturated

WP#37 0-12” silty clay –CH 12-34” silty clay loam—CL 34-54” very fine sandy loam-ML 54-60” fine sand-SP

WP#38 0-34” silty clay—CH 34-60” stratified very fine sandy loam/silt loam—ML-CL saturated@48 inches

WP#39 0-16” silty clay—CH 16-56” stratified very fine sandy loam/ silt loam—ML-CL 56-60” fine sand—SP Saturated @50”

WP#40 0-44” silty clay—CH 44-60” silt loam stratified with 1-3” layers of very fine sandy loam—ML-CL Saturated at 55”

WP#41 0-48” silty clay—CH 48-60” very fine sandy loam—ML saturated @ 48”

WP#42 0-30” silty clay—CH 30-36” silty clay loam—CL 36-60 very fine sandy loam—ML saturated@55”

WP#43 0-36” silty clay—CH 36-60”very fine sandy loam—ML saturated@48”

WP#44 0-36” silty clay—CH 36-60” very fine sandy loam—ML

WP#45 0-48” silty clay—CH 48-60” silty clay loam—CL saturated @48”

WP#46 0-24” silty clay—CH 24-36” silty clay loam—CL 36-60” fine sand—SP

WP#47 0-43” silty clay—CH 43-60”silty clay loam—CL saturated @54”

WP#48 0-40” silty clay—CH 40-60” silty clay loam—CL saturated@ 45”

WP#49 0-60” silty clay loam stratified with thin layers of silt loam—CL-ML Moist through out profile

WP#50 0-60” silty clay stratified with layers of silty clay loam—CH-CL Moist through out profile

WP#51 0-45” silty clay—CH 45-60” very fine sandy loam—ML saturated @45”

Langdon Bend Wetland Restoration 05076301

Page # 1

LB06-01 D-1

Passing Sieve %: #3in = 100 #4 = 100 #200 = 85.5 Atterberg: LL = 44 PL = 21 PI = 23 Very Dark Grayish Brown Lean Clay (CL)

LB06-01 D-2

Passing Sieve %: #3in = 100 #4 = 100 #200 = 93.2 Atterberg: LL = 37 PL = 22 PI = 15 Olive Brown Lean Clay (CL)

LB06-01 D-3

Passing Sieve %: #3in = 100 #4 = 100 #200 = 88.4 Atterberg: LL = 35 PL = 25 PI = 10 Olive Brown Silt (ML)

LB06-02 D-1

Passing Sieve %: #3in = 100 #4 = 100 #200 = 91.9 Atterberg: LL = 46 PL = 23 PI = 23 Very Dark Grayish Brown Lean Clay (CL)

LB06-02 D-2

Passing Sieve %: #3in = 100 #4 = 100 #200 = 91.5 Atterberg: LL = 40 PL = 24 PI = 16 Olive Brown Lean Clay (CL)

LB06-02 D-3

Passing Sieve %: #3in = 100 #4 = 100 #200 = 97.5 Atterberg: LL = 36 PL = 26 PI = 10 Mottled Olive Brown And Rust Silt (ML)

LB06-03 D-1

Passing Sieve %: #3in = 100 #4 = 100 #200 = 97.1 Atterberg: LL = 34 PL = 24 PI = 10 Olive Brown Silt (ML)

LB06-03 D-3

Passing Sieve %: #3in = 100 #4 = 100 #200 = 96.0 Atterberg: LL = 41 PL = 23 PI = 18 Olive Brown Lean Clay (CL)

LB06-03 D-4

Passing Sieve %: #3in = 100 #4 = 100 #200 = 98.6 Atterberg: LL = 41 PL = 24 PI = 17 Olive Brown Lean Clay (CL)

LB06-04 D-1

Passing Sieve %: #3in = 100 #4 = 100 #200 = 97.9 Atterberg: LL = 58 PL = 22 PI = 36 Olive Brown Fat Clay (CH)

Langdon Bend Wetland Restoration

Page # 2

LB06-04 D-2

Passing Sieve %: #3in = 100 #4 = 98.7 #200 = 79.9 Atterberg: LL = 33 PL = 24 PI = 9 Olive Brown Silt With Sand (ML)

LB06-04 D-3

Passing Sieve %: #3in = 100 #4 = 100 #200 = 97.2 Atterberg: LL = NP PL = NP PI = NP Olive Brown Silt (ML)

LB06-05 D-1

Passing Sieve %: #3in = 100 #4 = 100 #200 = 98.2 Atterberg: LL = 53 PL = 22 PI = 31 Dark Grayish Brown And Olive Brown Fat Clay (CH)

LB06-05 D-2

Passing Sieve %: #3in = 100 #4 = 100 #200 = 97.9 Atterberg: LL = 33 PL = 26 PI = 8 Olive Brown Silt (ML)

Visual Classification Terracon U. S. Army Corps of Engineers #05076301 Langdon Bend Wetland Restoration

LB06-01

A D-1 NA Very Dark Grayish Brown Lean Clay (CL) Att / MA/Hyd.

B D-2 NA Olive Brown Lean Clay (CL) Att / MA/Hyd.

C D-3 NA Olive Brown Silt (ML) Att / MA/Hyd.

LB06-02

D D-1 NA Very Dark Grayish Brown Lean Clay (CL) Att / MA/Hyd.

E D-2 NA Olive Brown Lean Clay (CL) Att / MA/Hyd.

F D-3 NA Mottled Olive Brown And Rust Silt (ML) Att / MA/Hyd.

LB06-03

G D-1 NA Olive Brown Silt (ML) Att / MA/Hyd.

H D-3 NA Olive Brown Lean Clay (CL) Att / MA/Hyd.

I D-4 NA Olive Brown Lean Clay (CL) Att / MA/Hyd.

LB06-04

J D-1 NA Olive Brown Fat Clay (CH) Att / MA/Hyd.

K D-2 NA Olive Brown Silt With Sand (ML) Att / MA/Hyd.

L D-3 NA Olive Brown Silt (ML) Att / MA/Hyd.

LB06-05

M D-1 NA Dark grayish Brown And Olive Brown Fat Clay (CH) Att / MA/Hyd.

N D-2 NA Olive Brown Silt (ML) Att / MA/Hyd.

BORING SAMPLE DEPTH, WATER LL PL PI

NO. NO. feet CONTENT, %

LB06-01 D-1 NA 44 21 23

DESCRIPTION: Dark Grayish Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-01-1.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

Langdon Bend Wetland

LB06-01 D-2 NA 37 22 15

DESCRIPTION: Olive Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-01-2.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-02 D-1 NA 46 23 23

DESCRIPTION: Dark Grayish Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-02-1.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-02 D-2 NA 40 24 17

DESCRIPTION: Olive Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-02-2.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-02 D-3 NA 36 26 10

DESCRIPTION: Mottled Olive Brown And Rust Silt (ML)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-02-3.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-03 D-1 NA 34 24 10

DESCRIPTION: Olive Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-03-1.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-03 D-3 NA 41 23 18

DESCRIPTION: Olive Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-03-3.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-03 D-4 NA 41 24 16

DESCRIPTION: Olive Brown Lean Clay (CL)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-03-4.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-04 D-1 NA 58 22 37

DESCRIPTION: Olive Brown Fat Clay (CH)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-04-1.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/15/07

LB06-04 D-2 NA 33 24 9

DESCRIPTION: Olive Brown Silt (ML)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-04-2.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-04 D-3 NA NP NP NP

DESCRIPTION: Olive Brown Silt (ML)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-04-3.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-05 D-1 NA 53 22 31

DESCRIPTION: Dark Grayish Brown And Olive Brown Fat Clay (CH)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-05-1.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

LB06-05 D-2 NA 33 26 8

DESCRIPTION: Olive Brown Silt (ML)

K:\GEOTECH\+Projects-Civil\NE-Langdon Bend\Soils Testing\Results\[AL LB06-05-2.xls]Report Single Point

LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF SOILS

ASTM D4318

METHOD B (ONE POINT); DRY PREPARATION

2/16/07

GRAVEL Sand Silt or Coarse Fine Coarse Medium Fine Clay

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-05 D-2 NA Olive Brown Silt ML 33 26 8

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/16/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

U.S. STANDARD SIEVE OPENINGS IN INCHES & STANDARD SIEVE NUMBERS

Sieve-Hydro LB06-05-2

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-05 D-1 NA Dark Grayish Brown And Olive Brown Fat Clay CH 53 22 31

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/16/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-05-1

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-04 D-3 NA Olive Brown Silt ML NP NP NP

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/16/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-04-3

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-04 D-2 NA Olive Brown Silt With Sand ML 33 24 9

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/16/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-04-2

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-04 D-1 NA Olive Brown Fat Clay CH 58 22 36

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/15/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-04-1

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-03 D-4 NA Olive Brown Lean Clay CL 41 24 17

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/15/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-03-4

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-03 D-3 NA Olive Brown Lean Clay CL 41 23 18

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/15/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-03-3

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-03 D-1 NA Olive Brown Silt ML 34 24 10

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/15/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-03-1

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-02 D-3 NA Mottled Olive Brown And Rust Silt ML 36 26 10

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/15/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-02-3

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-02 D-2 NA Olive Brown Lean Clay CL 40 24 16

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/16/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-02-2

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-02 D-1 NA Very Dark Grayish Brown Lean Clay CL 46 23 23

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/14/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-02-1

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-01 D-3 NA Olive Brown Silt ML 35 25 10

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/15/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-01-3

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-01 D-2 NA Olive Brown Lean Clay CL 37 22 15

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/14/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-01-2

GRAIN SIZE DISTRIBUTION CURVE

BORING SAMPLE DEPTH, ASTM UNIFIED NAT. ATTERBERG LIMITS

NO. NO. feet DESCRIPTION SYMBOL WC, % LL PL PI

LB06-01 D-1 NA Very Dark Grayish Brown Lean Clay CL 44 21 23

PROJECT Langdon Bend Wetland Restoration

Lagdon Bend, Nebraska JOB NO. 05076301 DATE 2/14/2007

0.0010.010.1110100

PARTICLE DIAMETER, mm

P E

R C

E N

T

FI

N E

R

3 30 40 100 20020103/4 43/811 1/2

Sieve-Hydro LB06-01-1

Questions & Answers Multiple Award Task Order Contract (MATOC) for Construction

Missouri River Recovery Program 23 May 2008

SECTION: 002200, Paragraph 1.1 QUESTION: If a prime contractor will be working with subcontractors, where will they name these subcontractors?

ANSWER: Subcontractors will need to be addressed in Tabs 1 & 2 of the proposal and in the subcontracting plan. Note the subcontracting plan is only required by large businesses. Tab 3 of the proposal should address management of subcontractors for Task Order No. 0001.

SECTION: 002200, Paragraph 1.1.1 QUESTION: Should contractors list just the equipment they own or the equipment they are able to lease, team, etc.?

ANSWER: The contractor should list all equipment available for their use on this contract. A contractor who owns all equipment necessary to complete projects may be evaluated more favorably than a contractor who must rely on leasing or subcontractors.

However, enforceable agreements or a demonstrated history of working with subcontractor will be considered.

SECTION: 002200, Paragraph 1.2.1 QUESTION: If a company has several superintendants available to manage the projects, should they submit qualifications for the best or most qualified superintendent that will actually work the project?

ANSWER: Submit qualifications/resumes for any superintendents who may work on the task orders. Designate a superintendent who is anticipated to be the primary.

SECTION: 002200, Paragraph 1.4.2 QUESTION: If a contractor submits an unreasonably low priced proposal, is there a threshold or regulation that helps determine that is “unreasonably” low?

ANSWER: There is no threshold or regulation that governs. It is a discretionary determination. The Contracting Officer will determine the reasonableness of the price by comparing it to other proposals and the Independent Government Estimate.

SECTION: Langdon Bend, Section 31- Berm Embankment and Earthwork, Paragraph

1.5.4 Haul Roads, Page 13.

QUESTION: Will the access road to the project be closed during construction?

ANSWER: The access road landward side of the levee at Langdon Bend will be closed to the public during construction of the wetland project.

SECTION: General QUESTION: What do other task orders under the MRRP awarded prior to 30 September 2008 look like (i.e. size, location, HUBZone/Unrestricted)?

ANSWER: Acquisition strategies have not been approved for upcoming projects, but several additional task orders are anticipated. There are two emergent sandbar habitat projects just downstream from Gavins Point Dam. There are also several chute and backwater projects in the Nebraska/Iowa stretch of the river anticipated.

SECTION: General QUESTION: How will we address escalating fuel costs? Is there an economic price adjustment clause?

ANSWER: Task orders will be firm fixed-price so all costs are the contractor’s responsibility. The prices bid on Task Order No. 0001 are not locked in for any other task order. The duration of the task orders generally will not exceed 365 days. There is no economic price adjustment and no credit will be requested if a proposal projects higher fuel costs than actual prices.

SECTION: General QUESTION: Once a pool has been established under each MATOC, what selection criteria will be used for each task order?

ANSWER: Task orders will be awarded based on either low bid or best value basis.

Each solicitation will state the evaluation criteria. The most likely criteria for best value will be schedule and/or work plan.

SECTION: General QUESTION: Are contractors that have been awarded a contract under a MATOC required to submit a proposal on each task order?

ANSWER: No, contractors are not required to submit a proposal on each task order.

However, if a contractor consistently declines to submit proposals, the option to extend the contract may not be exercised.

SECTION: General QUESTION: Will old proposal submitted under the previous MRRP MATOCs be available as a “samples” for contractors?

ANSWER: No, these proposals are considered proprietary information and will not be made available.

SECTION: General QUESTION: When submitting proposals, should a contractor tailor their information to only Task Order No. 0001 or the overall needs of the Missouri River Recovery Program?

ANSWER: Schedule, management of subcontractors, and pricing should be specific to Task Order No. 0001. The rest of the proposal should reflect the overall capabilities and qualifications for the entire contract scope.

SECTION: General QUESTION: Will pricing of unsuccessful proposals released to the entire pool once the task order has been awarded?

ANSWER: Yes, after a task order has been awarded the identity and total price of each contractor in the pool who submitted a proposal will be released. This is a change from the procedure in the previous contracts.