Tabulation of Bids - MD SP NASA 2(1).pdf

Tabulation of Bids Report Date: 11/16/23

1 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Contractor Responsive?

Engineer's Estimate

Central Southern Construction Corp.

RBA Engineering International, PLLC

Base Schedule A

$1,367,000.00

$3,640,750.00

$1,221,040.91

Option: B

$5,093,000.00

$3,574,381.00

$2,991,217.41

Contractor Responsive?

Engineer's Estimate

Central Southern Construction Corp.

RBA Engineering International, PLLC

Total Base Schedule A and Option(s): B

$6,460,000.00

$7,215,131.00

$4,212,258.32

2 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Solcitation No: 693C73- 24-B-000003

Division: Eastern Federal Lands

State: MD County: Prince Georges

Federal Land: Goddard Space Flight Center Opened at: Ashburn, Virginia

Opened by: Emily McCleary

Date: 11/16/23

I certify that this Bid Tabulation accurately reflects the offers received for this solicitation.

Signed: _______________________________

Title: _______________________________

Date: _______________________________

Contract Awarded to: ____________________ Award Date: ____________________

Contractor Comment Bid Amount Responsive

RBA Engineering International, PLLC Low bidder $1,221,040.91 7830 Backlick Road, Suite B3 Springfield Virginia 22150

Central Southern Construction Corp. $3,640,750.00 119 Sewald Street Jacksonville Florida 32204

Engineer's Estimate $1,367,000.00

Emily McCleary

Contract Specialist

16 November 2023

RBA Engineering International, PLLC 18 December 2023

3 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

A0050 15101-0000 MOBILIZATION

RBA Engineering International, PLLC Lump Sum $170,665.06 Central Southern Construction Corp. Lump Sum $1,370,000.00 Engineer's Estimate ALL LPSM Lump Sum $113,155.00

A0100 15401-0000 CONTRACTOR TESTING

RBA Engineering International, PLLC Lump Sum $31,091.10 Central Southern Construction Corp. Lump Sum $318,000.00 Engineer's Estimate ALL LPSM Lump Sum $25,500.00

A0150 20120-1000 REMOVAL, INDIVIDUAL TREE

RBA Engineering International, PLLC $4,565.11 $13,695.33 Central Southern Construction Corp. $1,000.00 $3,000.00 Engineer's Estimate 3 EACH $960.00 $2,880.00

A0200 20304-3000 REMOVAL OF BRIDGE DECK (SPAN 2 CONCRETE DECK, CURB, AND PARAPET REMOVAL)

RBA Engineering International, PLLC Lump Sum $140,400.00 Central Southern Construction Corp. Lump Sum $420,000.00 Engineer's Estimate ALL LPSM Lump Sum $170,000.00

A0250 20304-4000 REMOVAL OF BRIDGE SUPERSTRUCTURE (EXTERIOR BEAMS, DIAPHRAGMS, AND X-BRACINGS)

RBA Engineering International, PLLC Lump Sum $21,600.00 Central Southern Construction Corp. Lump Sum $265,000.00 Engineer's Estimate ALL LPSM Lump Sum $64,000.00

A0300 55201-0800 STRUCTURAL CONCRETE, CLASS D (AE) (LWT CONCRETE, SPAN 2 BRIDGE DECK)

RBA Engineering International, PLLC $1,706.40 $136,512.00 Central Southern Construction Corp. $2,000.00 $160,000.00 Engineer's Estimate 80 CUYD $3,450.00 $276,000.00

A0350 55220-0000 REPAIR CONCRETE (HES CONCRETE FOR SPAN 2 EXTERIOR BEARING PEDESTALS)

RBA Engineering International, PLLC $3,888.00 $19,440.00 Central Southern Construction Corp. $2,000.00 $10,000.00 Engineer's Estimate 5 SQYD $4,245.00 $21,225.00

4 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

A0400 55224-0000 SEAL CONCRETE SURFACE (SILICONE-BASED ACRYLIC AND ANTI-GRAFFITI SEALANT FOR SPAN 2

PARAPETS)

RBA Engineering International, PLLC $108.00 $3,240.00 Central Southern Construction Corp. $60.00 $1,800.00 Engineer's Estimate 30 SQYD $133.00 $3,990.00

A0450 55401-2000 REINFORCING STEEL, EPOXY COATED (SPAN 2)

RBA Engineering International, PLLC $2.46 $54,120.00 Central Southern Construction Corp. $2.50 $55,000.00 Engineer's Estimate 22,000 LB $3.50 $77,000.00

A0500 55502-0000 STRUCTURAL STEEL, FURNISHED, FABRICATED, AND ERECTED (SPAN 2 EXTERIOR BEAMS, DIAPHRAGMS, AND X-BRACINGS)

RBA Engineering International, PLLC $12.83 $237,355.00 Central Southern Construction Corp. $15.00 $277,500.00 Engineer's Estimate 18,500 LB $9.00 $166,500.00

A0550 55601-0500 BRIDGE RAILING, CONCRETE (SPAN 2 CLASS D(AE) LWT CONCRETE CURB AND PARAPET)

RBA Engineering International, PLLC $405.00 $48,600.00 Central Southern Construction Corp. $400.00 $48,000.00 Engineer's Estimate 120 LNFT $583.00 $69,960.00

A0600 55602-1000 REMOVE AND RESET BRIDGE RAILING (SPAN 2 ALUMINUM TOP RAIL)

RBA Engineering International, PLLC $54.87 $6,584.40 Central Southern Construction Corp. $110.00 $13,200.00 Engineer's Estimate 120 LNFT $265.00 $31,800.00

A0650 56401-1000 BEARING DEVICE, ELASTOMERIC (SPAN 2 EXTERIOR GIRDERS STEEL REINFORCED ELASTOMERIC BEARING, 60 DUROMETER)

RBA Engineering International, PLLC $3,240.00 $12,960.00 Central Southern Construction Corp. $3,000.00 $12,000.00 Engineer's Estimate 4 EACH $2,650.00 $10,600.00

5 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

A0660 62303-1000 SPECIAL LABOR, HIRED TECHNICAL SERVICES (BAT EXCLUSION SYSTEM)

RBA Engineering International, PLLC Lump Sum $43,200.00 Central Southern Construction Corp. Lump Sum $30,000.00 Engineer's Estimate ALL LPSM Lump Sum $60,000.00

A0700 63501-0000 TEMPORARY TRAFFIC CONTROL (FOR CONTAINMENT SYSTEM INSTALLATION)

RBA Engineering International, PLLC Lump Sum $97,200.00 Central Southern Construction Corp. Lump Sum $350,000.00 Engineer's Estimate ALL LPSM Lump Sum $40,000.00

A0750 63502-0300 TEMPORARY TRAFFIC CONTROL, ARROW BOARD, TYPE C

RBA Engineering International, PLLC $1,080.00 $2,160.00 Central Southern Construction Corp. $5,000.00 $10,000.00 Engineer's Estimate 2 EACH $5,570.00 $11,140.00

A0800 63502-1300 TEMPORARY TRAFFIC CONTROL, DRUM

RBA Engineering International, PLLC $102.60 $34,884.00 Central Southern Construction Corp. $100.00 $34,000.00 Engineer's Estimate 340 EACH $87.00 $29,580.00

A0850 63502-1500 TEMPORARY TRAFFIC CONTROL, WARNING LIGHT TYPE A

RBA Engineering International, PLLC $135.00 $22,950.00 Central Southern Construction Corp. $50.00 $8,500.00 Engineer's Estimate 170 EACH $111.00 $18,870.00

A0900 63502-2000 TEMPORARY TRAFFIC CONTROL, PORTABLE CHANGEABLE MESSAGE SIGN

RBA Engineering International, PLLC $5,400.00 $32,400.00 Central Southern Construction Corp. $15,000.00 $90,000.00 Engineer's Estimate 6 EACH $4,000.00 $24,000.00

A0950 63503-0300 TEMPORARY TRAFFIC CONTROL, BARRICADE TYPE 3

RBA Engineering International, PLLC $74.25 $14,850.00 Central Southern Construction Corp. $35.00 $7,000.00 Engineer's Estimate 200 LNFT $101.00 $20,200.00

6 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

A1000 63504-1000 TEMPORARY TRAFFIC CONTROL, CONSTRUCTION SIGN

RBA Engineering International, PLLC $23.76 $35,877.60 Central Southern Construction Corp. $25.00 $37,750.00 Engineer's Estimate 1,510 SQFT $60.00 $90,600.00

A1050 63701-0000 FIELD OFFICE

RBA Engineering International, PLLC $41,256.42 $41,256.42 Central Southern Construction Corp. $120,000.00 $120,000.00 Engineer's Estimate 1 EACH $40,000.00 $40,000.00

Total Schedule - All Items

RBA Engineering International, PLLC $1,221,040.91 Central Southern Construction Corp. $3,640,750.00 Engineer's Estimate $1,367,000.00

7 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Solcitation No: 693C73- 24-B-000003

Division: Eastern Federal Lands

State: MD County: Prince Georges

Federal Land: Goddard Space Flight Center Opened at: Ashburn, Virginia

Opened by: Emily McCleary

Date: 11/16/23

I certify that this Bid Tabulation accurately reflects the offers received for this solicitation.

Signed: _______________________________

Title: _______________________________

Date: _______________________________

Contract Awarded to: ____________________ Award Date: ____________________

Contractor Comment Bid Amount Responsive

RBA Engineering International, PLLC Low bidder $2,991,217.41 7830 Backlick Road, Suite B3 Springfield Virginia 22150

Central Southern Construction Corp. $3,574,381.00 119 Sewald Street Jacksonville Florida 32204

Engineer's Estimate $5,093,000.00

Emily McCleary

Contract Specialist

16 November 2023

RBA Engineering International, PLLC 18 December 2023

8 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

B0050 15101-0000 MOBILIZATION

RBA Engineering International, PLLC Lump Sum $111,405.02 Central Southern Construction Corp. Lump Sum $200,000.00 Engineer's Estimate ALL LPSM Lump Sum $381,634.00

B0100 15201-0000 CONSTRUCTION SURVEY AND STAKING

RBA Engineering International, PLLC Lump Sum $10,800.00 Central Southern Construction Corp. Lump Sum $115,000.00 Engineer's Estimate ALL LPSM Lump Sum $68,000.00

B0150 15401-0000 CONTRACTOR TESTING

RBA Engineering International, PLLC Lump Sum $31,091.10 Central Southern Construction Corp. Lump Sum $50,000.00 Engineer's Estimate ALL LPSM Lump Sum $50,000.00

B0200 20302-1400 REMOVAL OF GUARDRAIL, TIMBER

RBA Engineering International, PLLC $41.72 $10,012.80 Central Southern Construction Corp. $40.00 $9,600.00 Engineer's Estimate 240 LNFT $21.00 $5,040.00

B0250 30302-2000 SHOULDER RECONDITIONING

RBA Engineering International, PLLC $71.53 $17,167.20 Central Southern Construction Corp. $146.90 $35,256.00 Engineer's Estimate 240 LNFT $7.00 $1,680.00

B0300 40101-0600 ASPHALT CONCRETE PAVEMENT, GYRATORY MIX, 1/2-INCH NOMINAL MAXIMUM SIZE AGGREGATE, 0.3 TO <3

MILLION ESAL (PG64-22)

RBA Engineering International, PLLC $175.23 $166,468.50 Central Southern Construction Corp. $275.00 $261,250.00 Engineer's Estimate 950 TON $191.00 $181,450.00

9 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

B0350 40102-0100 ASPHALT CONCRETE PAVEMENT, GYRATORY MIX, 3/8-INCH NOMINAL MAXIMUM SIZE AGGREGATE, WEDGE

AND LEVELING COURSE (PG64-22)

RBA Engineering International, PLLC $241.38 $37,413.90 Central Southern Construction Corp. $350.00 $54,250.00 Engineer's Estimate 155 TON $220.00 $34,100.00

B0400 41201-0000 TACK COAT

RBA Engineering International, PLLC $1,762.56 $14,981.76 Central Southern Construction Corp. $850.00 $7,225.00 Engineer's Estimate 8.5 TON $1,180.00 $10,030.00

B0450 41301-0600 ASPHALT PAVEMENT MILLING, 2-INCH DEPTH

RBA Engineering International, PLLC $9.58 $79,035.00 Central Southern Construction Corp. $10.00 $82,500.00 Engineer's Estimate 8,250 SQYD $7.00 $57,750.00

B0500 50202-0000 SEALING JOINTS AND CRACKS

RBA Engineering International, PLLC $136.08 $13,608.00 Central Southern Construction Corp. $7.00 $700.00 Engineer's Estimate 100 LNFT $6.00 $600.00

B0550 55220-0000 REPAIR CONCRETE (HES CONCRETE FOR PEDESTAL AND DECK REPAIRS)

RBA Engineering International, PLLC $3,240.00 $32,400.00 Central Southern Construction Corp. $2,500.00 $25,000.00 Engineer's Estimate 10 SQYD $3,705.00 $37,050.00

B0600 55220-0000 REPAIR CONCRETE (CLASS A(AE) CONCRETE FOR PIER AND ABUTMENT REPAIRS)

RBA Engineering International, PLLC $1,944.00 $660,960.00 Central Southern Construction Corp. $2,500.00 $850,000.00 Engineer's Estimate 340 SQYD $3,705.00 $1,259,700.00

B0650 55224-0000 SEAL CONCRETE SURFACE (SILICONE-BASED ACRYLIC AND ANTI-GRAFFITI SEALANT FOR PIERS)

RBA Engineering International, PLLC $67.39 $70,759.50 Central Southern Construction Corp. $60.00 $63,000.00 Engineer's Estimate 1,050 SQYD $133.00 $139,650.00

10 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

B0700 55225-0000 CLEAN AND RESEAL JOINTS (ABUTMENT BACKER ROD AND SEALANT)

RBA Engineering International, PLLC $90.72 $30,844.80 Central Southern Construction Corp. $65.00 $22,100.00 Engineer's Estimate 340 LNFT $106.00 $36,040.00

B0750 55235-0000 EXPANSION JOINTS (STRIP SEAL AND LOCKING RAIL)

RBA Engineering International, PLLC $583.20 $180,792.00 Central Southern Construction Corp. $600.00 $186,000.00 Engineer's Estimate 310 LNFT $1,376.00 $426,560.00

B0800 56202-0000 TEMPORARY SUPPORT STRUCTURE (BRIDGE LIFTING SYSTEM)

RBA Engineering International, PLLC Lump Sum $226,800.00 Central Southern Construction Corp. Lump Sum $300,000.00 Engineer's Estimate ALL LPSM Lump Sum $794,000.00

B0850 56301-2000 PAINTING, STEEL STRUCTURE (GIRDERS, DIAPHRAGMS, AND X-BRACING)

RBA Engineering International, PLLC Lump Sum $409,320.00 Central Southern Construction Corp. Lump Sum $500,000.00 Engineer's Estimate ALL LPSM Lump Sum $794,000.00

B0900 56320-0000 CONTAINMENT SYSTEM AND WORKER PROTECTION PLAN

RBA Engineering International, PLLC Lump Sum $409,320.00 Central Southern Construction Corp. Lump Sum $400,000.00 Engineer's Estimate ALL LPSM Lump Sum $530,000.00

B0950 56401-1000 BEARING DEVICE, ELASTOMERIC (STEEL REINFORCED ELASTOMERIC BEARING, 60 DUROMETER)

RBA Engineering International, PLLC $4,523.04 $307,566.72 Central Southern Construction Corp. $4,000.00 $272,000.00 Engineer's Estimate 68 EACH $2,117.00 $143,956.00

B1000 61701-4000 GUARDRAIL SYSTEM SBTB

RBA Engineering International, PLLC $229.93 $47,135.65 Central Southern Construction Corp. $300.00 $61,500.00 Engineer's Estimate 205 LNFT $212.00 $43,460.00

11 out of 11

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Line Item Pay Item No. Description Quantity Unit Unit Price Amount

Number

B1050 61707-2000 STRUCTURE TRANSITION RAILING, SBT SYSTEM

RBA Engineering International, PLLC $229.93 $27,591.60 Central Southern Construction Corp. $300.00 $36,000.00 Engineer's Estimate 120 LNFT $440.00 $52,800.00

B1100 62402-0300 FURNISHING AND PLACING TOPSOIL, 4-INCH DEPTH

RBA Engineering International, PLLC $89,581.94 $44,790.97 Central Southern Construction Corp. $30,000.00 $15,000.00 Engineer's Estimate 0.5 ACRE $39,000.00 $19,500.00

B1150 62501-0000 TURF ESTABLISHMENT

RBA Engineering International, PLLC $8,155.78 $4,077.89 Central Southern Construction Corp. $30,000.00 $15,000.00 Engineer's Estimate 0.5 ACRE $12,000.00 $6,000.00

B1200 63401-0700 PAVEMENT MARKINGS, TYPE D, SOLID

RBA Engineering International, PLLC $3.75 $46,875.00 Central Southern Construction Corp. $1.04 $13,000.00 Engineer's Estimate 12,500 LNFT $1.60 $20,000.00

Total Schedule - All Items

RBA Engineering International, PLLC $2,991,217.41 Central Southern Construction Corp. $3,574,381.00 Engineer's Estimate $5,093,000.00

Bid Error Report

1 out of 4

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Bid Item Check Pass

Bidder Line Item Number Bidder's Extension Computed Extension

No Line Item Errors Found

2 out of 4

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: A

Schedule Type: Base

Bid Total Check Pass

Bidder Bidder's Bid Amount Computed Bid Amount Error

Central Southern Construction Corp. $3,640,750.00 $3,640,750.00

RBA Engineering International, PLLC $1,221,040.91 $1,221,040.91

The apparent low bidder is 10.68% below the engineer's estimate.

3 out of 4

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Bid Item Check Pass

Bidder Line Item Number Bidder's Extension Computed Extension

No Line Item Errors Found

4 out of 4

Project No: MD SP NASA 2(1)

Project Name: Immediate Repair/Rehabilitation of NASA Access Bridge

Schedule: B

Schedule Type: Options

Bid Total Check Pass

Bidder Bidder's Bid Amount Computed Bid Amount Error

Central Southern Construction Corp. $3,574,381.00 $3,574,381.00

RBA Engineering International, PLLC $2,991,217.41 $2,991,217.41

The apparent low bidder is 41.27% below the engineer's estimate.