Addendum 1 document.pdf

Addendum #1 National Guard Readiness Center – Sioux Falls (MVSC Paving) – CFMO# 460158

Sioux Falls Readiness Center

Sioux Falls, SD

SEI No: 24215

ADDENDUM 1-1

1.1 PROJECT INFORMATION

1.1.1 Project Name: National Guard Readiness Center – Sioux Falls (MVSC Paving)

1.1.2 Owner: Department of the Military

1.1.3 Engineer: Stockwell Engineers

1.1.4 Engineer Project Number: 24215

1.1.5 Date of Addendum: October 07, 2024

1.2 NOTICE TO BIDDERS

1.2.1 This Addendum is issued to all registered plan holders pursuant to the Instructions to Bidders. This Addendum serves to clarify, revise, and supersede information in the Project Manual, Drawings, and previously issued Addenda. Portions of the Addendum affecting the Contract Documents will be incorporated into the Contract by enumeration of the Addendum in the Owner/Contractor Agreement.

1.2.2 The Bidder shall acknowledge receipt of this Addendum in the appropriate space on the Bid Form.

1.2.3 The date for receipt of bids is unchanged by this Addendum. The time and locations are unchanged.

1.3 ATTACHMENTS

1.3.1 This Addendum includes the following attached Sheets:

1. Civil Sheet 2 – Pavement Plan - ADD #1 (Reissued).

2. Civil Sheet 3 – Grading Plan - ADD #1 (Reissued).

3. Civil Sheet 5 – UTES Site Plan - ADD #1 (Issued).

1.4 REVISIONS TO DRAWING SHEETS

1.4.1 Sheet 2 – Pavement Plan (Reissued).

1. Removed approximately 300 SY of 9” concrete pavement along the SW fence line where indicated. This area currently has rock mulch installed. Contractor to install new pavement up against existing rock mulch that currently extends out approximately 20’ from the existing fence line. Edge of concrete pavement shall match existing top of rock elevations.

2. Saw cut in 15’ drop curb and 5’ curb tapers and install 9” non-reinforced concrete apron along the back side as shown at the very south end of the access road to the back-of-house (11 SY).

3. Saw cut in 15’ drop curb and 5’ curb tapers and install 9” non-reinforced concrete apron approach pavement out to the edge of the rock mulch along the east side of the MVSC where shown (42 SY). This drop and approach can move slightly north/south as needed to utilize existing fence posts as needed. Remove rock mulch where new pavement is to be installed.

4. Install 15’ wide cantilever gate to fully access the 15’ wide concrete apron. Provide locking mechanism so gate can be locked in closed position. Gate to match existing perimeter fencing. American Fence was the contractor that installed the site perimeter fencing of the Readiness Center.

1.4.2 Sheet 3 – Grading Plan (Reissued).

1. Revised the crown elevation up to help minimize the amount of additional aggregate base course to be removed.

1.4.3 Sheet 5 – UTES Site Plan (Issued).

1. Plan of the existing UTES site located at the NE corner of Bahnson Avenue and Benson Street.

2. Add additional 6” of salvaged crushed concrete surfacing to the north access road off of Bahnson Avenue where indicated.

This will require approximately 4500 cubic feet of compacted salvaged material.

GAARD A.

ROPS

Addendum #1 National Guard Readiness Center – Sioux Falls (MVSC Paving) – CFMO# 460158

Sioux Falls Readiness Center

Sioux Falls, SD

SEI No: 24215

ADDENDUM 1-2

3. From the north fence line of the existing UTES motor pool area, strip an approximate 12” of existing topsoil and subgrade and place stripped material across the existing concrete north/south access road where indicated.

4. Once stripping of soil is completed, contractor shall sheepsfoot compact existing subgrade. Once compacted, proof roll area for approval prior to the installation of a geotextile fabric (Mirafi HP 370 or approved equal) and install 12” of compacted salvaged crushed concrete surfacing. This will require approximately 34,100 cubic feet of compacted material.

5. Place stripped material just north of the area that houses the bridge units where indicated. Contractor to fill in area to provide a level pad to match existing pad to the south and slope off to the east at no more than a 4:1 slope. Extend level area at the top to the north as far as possible until the stripped material is fully used.

1.4.4 General Note. Contractor will have full access of the site. Close and lock gates at the end of each day.

End of Addendum

TV

H

P

TV

P

H

B

V

V

V

V

B

S

S

T

B

T H

T

T

V

D

B

S

D

D

D

B

B

B

R

V

TV

H

P

TV

P

H

V

V

V

V

S

S

H

V

D

S

D

D

D

V

SE

I P

RO

JE

C T

Revisions:

Drafted By:

Review ed By:

STOCKWELL ENGINEERS, INC.

801 N. PHILLIPS AVE., SUITE 100

SIOUX FALLS, SD 57104

PH: 605.338.6668

FAX: 605.338.8750

File Location: S:\Projects\2024\P24215 - SF Readiness Center M VSC Paving\Construction Docum ents\W orking Files\Draw ings\24215 - C2 - Pavem ent Plan.dw g

WWW.STOCKWELLENGINEERS.COM

REG

IS T

ERE

D PROFESS I ONAL ENGI NEER

REG . NO .

S O U T H D A K O T A

ROPS

GAARD A.

Time Stamp: 10/7/2024 5:22 PM

PAVEMENT PLAN

SI

OU

X

FA

LL

S, S

OU

TH

D

AK

OT

A

M

VS

C

PA

VI

N

G

NA

TI

ON

AL

G

UA

RD

R

EA

DI

NE

SS

C

EN

TE

R

GAR

BAS

1 ADD #1 10/07/2024

3015 600

READINESS CENTER

FUTURE COLD

STORAGE

TRAINING BAY

ALT #1

FUTURE FUEL

CONTAINMENT

BAHNSON AVENUE LEGEND

KEYNOTES

1. REMOVE EXISTING CRUSHED CONCRETE

AGGREGATE BASE COURSE AS NEEDED TO

CONSTRUCT 9” NON-REINFORCED CONCRETE

PAVEMENT.

2. REMOVE EXISTING CRUSHED CONCRETE

AGGREGATE BASE COURES AS NEEDED TO

INSTALL SF69 CONCRETE CURB AND GUTTER

(TIP-OUT).

3. PROVIDE 3' CURB TAPER.

4. SAW CUT AND REMOVE A FEW FEET OF CURB

AND GUTTER AS NEEDED TO CONNECT WITH

NEW CURB AND GUTTER TO PROVIDE FULL CURB

AT THE CORNER AND POSITIVE DRAINAGE.

5. CORE DRILL 24" NO. 5 DEFORMED TIE BARS INTO

EXISTING GUTTER PAN SPACED AT 30" ON

CENTER.

26.5'

470.0'

78.6' 59.4'

194.3'

184.5'

159.0'

151.3'

128.7'

FUTURE MEP

PARKING

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

STLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

KTLJ

STLJ

STLJ

STLJ

KTLJ

STLJ

KTLJ

ST

LJ

KT

LJ

ST

LJ

KT

LJ

STLJ

STLJ

3 GENERAL NOTES

A. CONTRACTOR SHALL REMOVE APPROXIMATELY

9” OF EXISTING CRUSHED CONCRETE

AGGREGATE BASE COURSE TO INSTALL NEW

PAVEMENT.

B. ALL MATERIAL SHALL BE SALVAGED,

TRANSPORTED AND STOCKPILED AT THE UTES

FACILITY AT THE NE CORNER OF BAHNSON

AVENUE AND BENSON ROAD. COORDINATE WITH

OWNER ON EXACT LOCATION OF STOCKPILE

AREA.

C. FOLLOWING FINAL PAVING OPERATIONS,

CONTRACTOR SHALL PLACE BACK TOPSOIL

ALONG THE BACK OF CURB, FINE GRADE, SEED

AND FERTILIZE.

- PROPOSED CURB & GUTTER

- PROPOSED CONCRETE

- TRANSVERSE JOINT

- SAWED TIED LONGITUDINAL JOINT

- KEYED & TIED LONGITUDINAL JOINT

- KEYED CONSTRUCTION JOINT

- INLET PROTECTION

STLJ

KTLJ

KCJ

5 5

EXISTING ROCK MULCH

TV

H

P

TV

P

H

V

V

V

V

S

S

H

D

S

D

D

D

V

P P

P

P

P

P

P

XXXXXXXXXXXXX

Field

Field

1462.00 TC1462.70 TC

1462.83 TC

1460.50 TC1461.86 TC

1463.31 TC

1465.48 TC

1.00%

1467.80 TC BT

1468.29 TC TT

1468.00 TC

1467.39 TC

1467.42 TC

1465.60 TC

0.33%

1.01%

0.

2.

1462.42 TOP ME

1460.09 TOP ME

1465.10 TOP ME

1461.27 TOP ME

1462.60 TOP ME 1461.51 TOP ME

3.01%

0.50%

1467.10 TOP

1465.18 TOP

SE

I P

RO

JE

C T

Revisions:

Drafted By:

Review ed By:

STOCKWELL ENGINEERS, INC.

801 N. PHILLIPS AVE., SUITE 100

SIOUX FALLS, SD 57104

PH: 605.338.6668

FAX: 605.338.8750

File Location: S:\Projects\2024\P24215 - SF Readiness Center M VSC Paving\Construction Docum ents\W orking Files\Draw ings\24215 - C3 - Grading Plan.dw g

WWW.STOCKWELLENGINEERS.COM

REG

IS T

ERE

D PROFESS I ONAL ENGI NEER

REG . NO .

S O U T H D A K O T A

ROPS

GAARD A.

Time Stamp: 10/7/2024 5:22 PM

GRADING PLAN

SI

OU

X

FA

LL

S, S

OU

TH

D

AK

OT

A

M

VS

C

PA

VI

N

G

NA

TI

ON

AL

G

UA

RD

R

EA

DI

NE

SS

C

EN

TE

R

GAR

BAS

1 ADD #1 10/07/2024

3015 600

BAHNSON AVENUE

LEGEND

- EXISTING CONTOUR

- PROPOSED MAJOR CONTOUR

- SPOT ELEVATIONS

ABBREVIATIONS

TC - TOP OF CURB

TT - TOP OF TAPER

BT - BOTTOM OF TAPER

TOP - TOP OF PAVEMENT

ME - MATCH EXISTING

X

SE

I P

RO

JE

C T

Revisions:

Drafted By:

Review ed By:

STOCKWELL ENGINEERS, INC.

801 N. PHILLIPS AVE., SUITE 100

SIOUX FALLS, SD 57104

PH: 605.338.6668

FAX: 605.338.8750

File Location: S:\Projects\2024\P24215 - SF Readiness Center M VSC Paving\Construction Docum ents\W orking Files\Draw ings\24215 - C5 - UTES Site.dw g

WWW.STOCKWELLENGINEERS.COM

REG

IS T

ERE

D PROFESS I ONAL ENGI NEER

REG . NO .

S O U T H D A K O T A

ROPS

GAARD A.

Time Stamp: 10/7/2024 5:18 PM

UTES SITE PLAN

SI

OU

X

FA

LL

S, S

OU

TH

D

AK

OT

A

M

VS

C

PA

VI

N

G

NA

TI

ON

AL

G

UA

RD

R

EA

DI

NE

SS

C

EN

TE

R

GAR

BAS

1 ADD #1 10/07/2024

4020 800

BAHNSON AVENUE

GENERAL NOTES

1. ALL DISTURBED AREAS DUE TO TRAFFIC ALONG ANY ACCESS ROUTE INTO THE SITE SHALL BE

FINE GRADED, SEEDED, FERTILIZED AND INSTALL EROSION CONTROL BLANKET.

2. SEEDING SHALL BE TYPE C SDDOT MIX AND INSTALLED AT A RATE OF 18 POUNDS/ACRE.

3. FERTILIZER SHALL BE A MINIMUM GUARANTEED ANALYSIS OF 13-13-13 AND INSTALLED AT A

RATE OF 100 LBDS PER ACRE

4. EROSION CONTROL BLANKET FROM BE FROM THE APPROVED PRODUCT LIST FOR EROSION

CONTROL BLANKET AT THE SDDOT WEBSITE. INSTALL PER MANUFACTURES

RECOMMENDATIONS.

5. WATER FOR VEGETATION CONSISTS OF APPLYING WATER TO SEEDED AREAS TO ENHANCE

GERMINATION AND/OR ROOT GROWTH. WHEN WATERING, USE THE FOLLOWING GUIDELINES:

IMMEDIATELY AFTER SEEDING:

· KEEP THE TOPSOIL MOIST BUT NOT EXCESSIVELY WET UNTIL THE SEED HAS GERMINATED.

· WATER A MINIMUM OF 3 DAYS A WEEK FOR 2 WEEKS PREFERABLY WATERING 2 OR 3 TIMES

A DAY IN SMALL QUANTITIES.

· USE FINE SPRAY AND LOW PRESSURE TO AVOID TOPSOIL WASH AND TO PREVENT

UNCOVERING BURIED SEEDS.

AFTER EMERGENCE:

· TOPSOIL WILL BE KEPT THOROUGHLY MOISTENED BY SPRINKLING, AS NECESSARY, FOR 6

WEEKS. AFTER THE 6-WEEK PERIOD, AN INSPECTION WILL BE MADE TO DETERMINE IF

GRASS IS ESTABLISHED ENOUGH TO SUSPEND WATERING. CONTINUE WATERING UNTIL

GRASS HAS BEEN THOROUGHLY ESTABLISHED.

· NEVER APPLY WATER AT A RATE FASTER THAN THE TOPSOIL CAN ABSORB.

· WATER DURING EARLY MORNING HOURS OR EARLY EVENING HOURS.

· DO NOT WATER WHEN RAIN IS FORECASTED FOR THE AREA.

· IF RAINFALL OCCURS, SUSPEND WATERING ACCORDING TO RAINFALL AMOUNT.

CONTRACTOR TO PLACE 6” OF COMPACTED CRUSHED CONCRETE AGGREGATE

BASE COURSE ALONG ACCESS ROAD FROM BAHNSON AVENUE UP TO EXISTING

PAVED ACCESS ROAD NORTH OF THE EXISTING CHIPS BUILDING. WIDTH TO

BE 15' WIDE CENTERED ON THE EXISITNG ROADWAY. SHALL REQUIRE

APPROXIMATELY 4500 CF OF COMPACTED CRUSHED CONCRETE MATERIAL.

CONTRACTOR TO STRIP APPROXIMATELY 12” OF EXISTING TOPSOIL AND SUBSOIL AND

REPLACE WITH A MINIMUM OF 12” OF CRUSHED CONCRETE AGGREGATE BASE COURSE

(COMPACTED). FOLLOWING STRIPING, SHEEPSFOOT COMPACT EXISTING SUBGRADE,

INSTALL GEOTEXTILE FABRIC (MIRAFI HP 370 OR APPROVED EQUAL), AND INSTALL CRUSHED

CONCRETE SURFACING. CONTRACTOR TO PLACE FINISH GRADE OF CRUSHED CONCRETE TO

MATCH TOP OF EXISTING GRADE. SHALL REQUIRE APPROXIMATELY 34,100 CF OF

COMPACTED CRUSHED CONCRETE MATERIAL.

ONCE SURFACE MATERIAL IS FULLY PLACED. FILL IN PERIMETER EDGING WITH TOPSOIL,

SEED, FERTILIZE AND INSTALL EROSION CONTROL BLANKET OVER ALL DISTURBED AREAS.

100.0'

342.2'

PLACE STRIPPED UNCLASSIFIED MATERIAL AND TOPSOIL FROM THE MOTOR POOL

EXPANSION AREA IN THIS LOCATION. FILL IN DROP-OFF AREA FROM BEHIND

EXISTING PAVEMENT TO PROVIDE A LEVEL PAD THAT EXTENDS OUT EAST TO

MATCH EXISTING PAD ELEVATIONS TO THE SOUTH. EXTEND NORTH AS NEEDED

UNTIL ALL STRIPPED MATERIAL US USED. PROVIDE A MINIMUMOF 4:1 SLOPE ON

EAST END. PLACE A MINIMUM OF 6” OF TOPSOIL OVER THE ENTIRE AREA, SEED,

FERTILIZE AND INSTALL EROSION CONTROL BLANKET.