MARYLAND STATE HIGHWAY ADMINISTRATION           
OFFICE OF HIGHWAY DEVELOPMENT           
DESIGN TECHNICAL SERVICES DIVISION           
707 NORTH CALVERT STREET           
BALTIMORE, MARYLAND 21202           
           
December 30, 2015           
           
Contract No.:  PG1755170           
F.A.P.  No.:  AC-HP-NHIPP-G-121-1(35)N           
Description:  MD 5 at Brandywine Road and            
		MD 373 (Accokeek Road) Interchange Phase 2           
           
ADDENDUM NO. 3           
           
To All Purchasers of Contract Documents:           
           
Please be advised that the Bid Opening Date for this contract is still scheduled for February 2,            
2016.           
           
The attention of prospective bidders is directed to the following revisions, additions and/or            
deletions to the Invitation for Bids booklet and Contract Plans.           
           
INVITATION FOR BIDS BOOKLET           
           
Page No.	Description           
           
180A		ADDED Special Provision “SECTION 308 – SANDBAGS”.           
           
181-186	REVISED Special Provision “SECTION 308 – EROSION AND SEDIMENT            
	CONTROL SPECIAL PROVISIONS”.           
           
SCHEDULE OF PRICES           
           
Note: For your convenience all revised Schedule of Prices pages have been posted on the            
eMaryland Marketplace Website at https://emaryland.buyspeed.com/bso/, under “Open            
Bids”, under “Public Works, Park Equipment, and Construction Services”, and under the            
associated “Bid Number” and “Alternate ID”.           
           
Page No.	Description           
           
527	INCREASED Quantity of Item No. 1035 (120784) “TEMPORARY ORANGE            
	CONSTRUCTION FENCE” from 11,878 to 12,214 LINEAR FEET.           
           
530	INCREASED Quantity of Item No. 2003 (201030) “CLASS 1 EXCAVATION”            
	from 92,423 to 94,837 CUBIC YARDS.           
           
531	INCREASED Quantity of Item No. 2008 (202065) “COMMON BORROW”            
	from 363,911 to 364,880 CUBIC YARDS.           
           
           
           
SCHEDULE OF PRICES (continued)           
           
Page No.	Description           
           
532	REVISED Category Code and Unit and DECREASED Quantity of Item No.            
	3003 from (301006) 130 TONS of “STABILIZED CONSTRUCTION            
	ENTRANCE” to (301008) 11 EACH of “STABILIZED CONSTRUCTION ENTRANCE”.           
           
533	INCREASED Quantity of Item No. 3009 (302442) “42 INCH REINFORCED            
	CONCRETE PIPE, CLASS IV” from 255 to 256 LINEAR FEET.           
           
534	DECREASED Quantity of Item No. 3016 (312429) “29 INCH X 45 INCH            
	HORIZONTAL ELLIPTICAL REINFORED CONCRETE PIPE, CLASS HE            
	IV” from 150 to 149 LINEAR FEET.           
           
	DECREASED Quantity of Item No. 3017 (312434) “34 INCH X 53 INCH            
	HORIZONTAL ELLIPTICAL REINFORED CONCRETE PIPE, CLASS HE            
	IV” from 219 to 218 LINEAR FEET.           
           
541	DECREASED Quantity of Item No. 3058 (388058) “EROSION AND            
	SEDIMENT CONTROL ORIGINAL EXCAVATION” from 7,022 to 6,907            
	CUBIC YARDS.           
           
	INCREASED Quantity of Item No. 3059 (388059) “EROSION AND            
	SEDIMENT CONTROL CLEANOUT EXCAVATION” from 8,341 to 10,338            
	CUBIC YARDS.           
           
	INCREASED Quantity of Item No. 3060 (388062) “EARTH DIKE” from 3,299            
	to 4,224 LINEAR FEET.           
           
542	INCREASED Quantity of Item No. 3061 (388066) “INLET PROTECTION”            
	from 40 to 42 EACH.           
           
	INCREASED Quantity of Item No. 3062 (388080) “REMOVABLE PUMPING            
	STATION” from 2 to 4 EACH.           
           
	INCREASED Quantity of Item No. 3065 (388155) “TEMPORARY GABION            
	OUTLET STRUCTURES” from 9 to 11 EACH.           
           
	INCREASED Quantity of Item No. 3066 (390245) “GABION INFLOW            
	PROTECTION” from 98 to 105 CUBIC YARDS.           
           
543	DECREASED Quantity of Item No. 3067 (390321) “CLASS I RIPRAP FOR            
	SLOPE AND CHANNEL PROTECTION” from 9,458 to 2,114 SQUARE YARDS.           
           
	INCREASED Quantity of Item No. 3068 (390330) “RIPRAP FOR SEDIMENT            
	CONTROL” from 607 to 870 TONS.           
           
SCHEDULE OF PRICES (continued)           
           
Page No.	Description           
           
543	INCREASED Quantity of Item No. 3071 (390525) “SILT FENCE” from 1,459            
	to 5,272 LINEAR FEET.           
           
	INCREASED Quantity of Item No. 3072 (390535) “SUPER SILT FENCE”            
	from 11,122 to 13,759 LINEAR FEET.           
           
544	INCREASED Quantity of Item No. 3075 (390630) “NO 57 AGGREGATE FOR            
	STORMWATER MANAGEMENT FACILITIES” from 12,404 to 12,405 CUBIC YARDS.           
           
	INCREASED Quantity of Item No. 3077 (390650) “COARSE SAND FOR            
	STORMWATER MANAGEMENT FACILITIES” from 2,184 to 2,185 CUBIC YARDS.           
           
	INCREASED Quantity of Item No. 3078 (390660) “BIORETENTION SOIL            
	MIX” from 9,880 to 9,883 CUBIC YARDS.           
           
545A	DECREASED Quantity of Item No. 3085 (388068) “TEMPORARY SWALE”            
	from 195 to 110 LINEAR FEET.           
           
	INCREASED Quantity of Item No. 3086 (388085) “SUMP PIT” from 7 to 15 EACH.           
           
	INCREASED Quantity of Item No. 3087 (388140) “DIVERSION FENCE”            
	from 47 to 274 LINEAR FEET.           
           
	INCREASED Quantity of Item No. 3088 (390345) “3/4” -1 ½” STONE FOR            
	SEDIMENT CONROL” from 219 to 359 TONS.           
           
545B	ADDED Item No. 3092 (300000) 1 EACH of “MODIFIED 72” MANHOLE INLET”.           
           
	ADDED Item No. 3093 (388043) 36 LINEAR FEET of “18 INCH PIPE SLOPE DRAIN”.           
           
	ADDED Item No. 3094 (390125) 185 EACH of “SANDBAGS”.           
           
	ADDED Item No. 3095 (390670) 1,865 SQUARE YARDS of “ACCESS            
	ROAD WITH CELLULAR CONFINEMENT LOAD SUPPORT SYSTEM”.           
           
	ADDED Item No. 3096 (300000) 4 EACH of “MODIFIED 60” MANHOLE INLET”.           
           
           
SCHEDULE OF PRICES (continued)           
           
Page No.	Description           
           
559	DECREASED Quantity of Item No. 7006 (705405) “TEMPORARY SEED”            
	from 634,202 to 634,061 SQUARE YARDS.           
           
560	INCREASED Quantity of Item No. 7007 (705412) “TEMPORARY MULCH”            
	from 383,819 to 394,249 SQUARE YARDS.           
           
561	INCREASED Quantity of Item No. 7013 (709100) “TYPE A SOIL            
	STABILIZATION” from 5,487 to 33,942 SQUARE YARDS.           
           
581	REVISED Listing for “AGGREGATE AMOUNT AT UNIT PRICES            
	ALTERNATE A IS USING BID”.           
           
CONTRACT PLANS           
           
Sheet No.	Description           
           
1	REVISED the Standard Stabilization note on the Title Sheet to reduce the time            
	frames from 7 and 14 days to 3 and 7 days.            
           
2	REVISED “INDEX” to denote sheets changed in Addendum No. 3.           
           
16	REVISED the depth of Type ‘A’ Curb and Gutter on Pavement Detail ‘L’ from            
	10” to 9”.           
           
17	REVISED the title of the Modified 8 Inch Type ‘A’ Curb and Gutter to            
	Modified 12 Inch Type ‘A’ Curb and Gutter.           
           
	REVISED the title of the Modified 3 Inch Type ‘C’ Curb and Gutter to Modified            
	12 Inch Type ‘C’ Curb and Gutter.           
           
42	REVISED the check dam symbol on BS-1.5 from STA 821+50 to STA 824+50            
	RT to match the Stormwater Management Plan symbol.           
           
	ADDED SWM Media shading where applicable.           
           
43	REVISED the cut and fill lines from STA. 106+50 to STA 109+00 RT.           
           
	ADDED a drainage channel from approximately STA 827+00 to STA 828+00 RT.           
           
	ADDED the proposed forebay foot print near ES 2-4.           
           
	ADDED SWM Media shading where applicable.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
44	ADDED SWM Media shading where applicable.           
           
45	REVISED the location of the limit of work box so that the entire SGW 5.1            
	facility is visible.           
           
	REVISED the shapes of facilities SGW 13.1 and SGW 5.1 and the cut and fill            
	lines around them.           
           
	ADDED SWM Media shading where applicable.           
           
47	ADDED SWM Media shading where applicable.           
           
48	REVISED Drawing No from PS-06 of 10 to PS-06 of 09.           
           
49	ADDED SWM Media shading where applicable.           
           
50	ADDED the BMP number 161255 to MBR 14.13.           
           
50	REVISED the fill line between ES-14-1 and ES 14-2.           
           
	ADDED SWM Media shading where applicable.           
           
51	ADDED SWM Media shading where applicable.           
           
70	REVISED the SWM facility.           
           
107	ADDED Grass Swale Detail.           
                 
      	ADDED Rain Garden and Rain Garden Observation Well Details.           
                 
      	ADDED Observation Well Detail (HSG Type ‘A’).           
                 
      	REVISED Observation Well Detail.           
                 
      	REVISED Standard Observation Well Detail Title and 3 Inch Mulch Layer                  
	Presentation from a Dark Solid to Hatched.           
                 
     	REVISED Detail #2 and Detail #3 to Lower the Concrete Pad into the Uncompacted           
      	Rototilled Soil.           
           
108	REVISED Submerged gravel Wetland 5.1 and 13.1  Profile View, Typical.           
           
      	REVISED Drawdown, Clean out and Observation well details.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
109	REVISED Forebay Weir Overflow and Overflow and Outfall details.           
           
      	REVISED Weir location table.           
           
	REVISED Clay Core Weir detail for bottom of clay core elevation, forebay spill            
	way elevation and depth of weir.           
           
110	REVISED Bioswale 1.5 Plan Presentation to Show Eight (8) Check Dams.           
           
      	ADDED Cleanout and Observation Well Callouts in SWM Facilities.           
           
      	ADDED Filter Bed Area Pattern, Cleanout, and Observation Well to Legend.           
                 
      	REVISED Overflow Weirs to Extend to Filter Bed Elevation.           
           
112	ADDED Cleanout and Observation Well Callouts in SWM Facilities.           
                 
      	ADDED Filter Bed Area Pattern, Cleanout, and Observation Well to Legend.           
           
112	REVISED Grading of Berm between BR 2.6 and BR 2.7 to Maintain 4 Foot Top Width.           
           
	REVISED Filter Bed and Recharge Volume in ESDv Facility Dimensions Table.           
           
	REVISED Overflow Weirs to Extend to Filter Bed Elevation.           
           
113	ADDED Road Names on Plan Views.           
           
	REVISED Geometric Layout for BR 2.6 and BR 2.7 Berm Grading for Points 14-17.           
           
115	ADDED Road Names on Plan Views.           
           
117	REMOVED a note from the plan to mention “THIS SHEET INTENTIONALLY LEFT BLANK”.           
           
	ADDED Stormwater Management Access Road Detail.           
           
118	REMOVED Micro-Bioretention Section Detail.           
           
	ADDED Cleanout and Observation Well Callouts in SWM Facilities.           
           
	ADDED Filter Bed Area Pattern, Cleanout, and Observation Well to Legend.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
118	ADDED Subdrain to MBR 14.4.           
           
119	REMOVED Micro-Bioretention Section Detail.           
           
	ADDED Cleanout and Observation Well Callouts in SWM Facilities.           
           
	ADDED Filter Bed Area Pattern, Cleanout, and Observation Well to Legend.           
           
120	REVISED POI 5 ESDv Facility Dimension table.           
           
	REVISED Plan view of SGW 5.1, specifically the riprap on the facility overflow.           
           
120	REVISED Legend to Add Underdrain and Cleanout.           
           
121	REVISED Plan view of SGW 5.1.           
           
	REVISED Legend to Add Underdrain and Cleanout.           
           
122	REVISED SGW 5.1 profile.           
           
	ADDED Legend.           
           
124	REVISED POI 6 & 10 ESDv Facility Dimension table.           
           
	REVISED Plan view.           
           
	REVISED Legend to add Cleanouts and Observation Well.           
           
125	REVISED POI 9 & 16 ESDv Facility Dimension Table for 161204 Length and            
	All Weir Depths.           
           
	REVISED Legend to Add Observation Well.           
           
	REVISED Plan View to Show Observation Wells.           
           
126	ADDED “SWM Surface” pattern to the top of each raingarden.           
           
	REVISED Legend to Show Observation Well.           
           
	REVISED Plan View to Show Observation Well.           
           
	REVISED Raingarden ESDv and Bottom Elevation for RG 9.1 and 9.2.           
           
127	REVISED Plan Presentation to Show SWM Surface Pattern and Observation Wells.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
127	ADDED Legend.           
           
128	REVISED Grass Swale 9.1, 6.1 and 6.2 profiles for Bottom Elevation and 100            
	year Elevation.           
           
129	REVISED POI 13 ESDv Facility Dimension table.           
           
	REVISED Plan view of SGW 13.1 to Show Observation Well.            
           
	REVISED Legend to Add Observation Well, Underdrain, and Cleanout.           
           
130	REVISED Plan view of SGW 13.1.           
           
	REVISED Legend to Add Observation Well, Underdrain, and Cleanout.           
           
131	REVISED SGW 13.1 Profile for Bottom Elevation and Weir Layout and Stone.           
           
	REVISED Bottom elevation of SGW 13.1 in Section A-A.           
           
135	REVISED BR 2.6 Filter Bed Area from 3711 SF to 3737 SF.           
           
139	DELETED Stormwater Management As-Built Certification Table.           
           
140	REVISED all four As-Built tables.           
           
141	REVISED SGW 5-1 As-Built Table for Gravel Depth.           
           
	REVISED MBR 6-1 As-built Table for Underdrain Pipe Elevation.           
           
	REVISED Grass Swale 6.1 As-Built Table for Slope and 10-Year Freeboard.           
           
	REVISED Grass Swale 6.2 As-Built Slope and 10-Year Freeboard .           
           
142	REVISED All Six As-Built Tables for “designed” Values and Revised the As-Built           
	Certification.           
           
143	REMOVED a note from the plan to mention “THIS SHEET INTENTIONALLY LEFT BLANK”.           
           
	ADDED Drainage Details.           
           
145	REVISED I 2-1 Diameter to 72”.           
           
	REVISED Pipe Lengths.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
146	REVISED I 2-1 Diameter to 72”.           
           
	REVISED I 2-4 to I 2-1 Profile Inverts.           
           
148	REVISED MH 15-2 Diameter to 72”.           
           
	REVISED MH 15-3 to MH 15-2 Pipe Length and Slope.           
           
153	REVISED 6” PVC Subdrain Invert at I 10-1, I 10-3, and I 10-4.           
           
154	REVISED Plan Title to Match Index of Sheets.           
           
	REVISED Pipe Schedule to Update Revised Pipe Lengths and Inverts.           
           
155	REVISED Plan Title to Match Index of Sheets.           
           
	REVISED 6” PVC Subdrain Inverts for Several Inlets.           
                 
155	REVISED Inlet Types, Pipe Sizes, and Inverts.           
           
156	REVISED Plan Title to Match Index of Sheets.           
           
	REVISED Ditch  Lining Schedule Table for Ditch #11 Values.           
           
157	REVISED Section 12 Site Information, Total Area of Site, Area Disturbed, and              
	Date for Design Certification.           
           
	ADDED Orange Construction Fence to Legend .           
           
	REVISED Areas for Stages 1 Through 6.           
           
158-166	REPLACED “EROSION AND SEDIMENT CONTROL GENERAL NOTES,”            
	sheets EN-02 through EN-09 and “EROSION AND SEDIMENT CONTROL            
	DETAIL” sheet ED-01.           
           
166A	ADDED new sheet “KEY MAP – GRADING UNIT – STAGE 1”.           
           
166B	ADDED new sheet “KEY MAP – GRADING UNIT – STAGE 1”.           
           
167-170	REPLACED “EROSION AND SEDIMENT CONTROL PLAN,” sheets ES-101            
	through ES-104.           
           
           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
171	ADDED note for utility work “EROSION AND SEDIMENT CONTROL,”            
	sheet ES-105.           
           
172	ADDED note for utility work, REMOVED existing wetland, wetland buffer            
	“EROSION AND SEDIMENT CONTROL,” sheet ES-106.           
           
173-175	REPLACED “EROSION AND SEDIMENT CONTROL PLAN,” sheets ES-107            
	through ES-109.           
           
175A	ADDED new sheet “KEY MAP – GRADING UNIT – STAGE 2”.           
           
175B	ADDED new sheet “KEY MAP – GRADING UNIT – STAGE 2”.           
           
176-179	REPLACED “EROSION AND SEDIMENT CONTROL PLAN,” sheets ES-201            
	through ES-204.           
           
180	ADDED note for utility work “EROSION AND SEDIMENT CONTROL,”            
	sheet ES- 205.           
           
181	ADDED note for utility work, REMOVED existing wetland, wetland buffer            
	“EROSION AND SEDIMENT CONTROL,” sheet ES-206.           
           
182-220	REPLACED “EROSION AND SEDIMENT CONTROL PLAN,” sheets ES-207            
	through ES-209,  ES-301 through ES-309, ES-401 through ES-409, ES-501            
	through ES-509 and ES-601 through ES-609.           
           
221	REVISED Turfgrass SOD and Upland Meadow Establishment for SWM Facilities.           
           
	REVISED Landscape Plant Schedule for Turfgrass SOD, Upland Meadow            
	Establishment, and Topsoil Quantities.            
           
222	REVISED Turfgrass SOD and Upland Meadow Establishment for SWM Facilities.           
           
	REVISED Turfgrass Establishment in SWM Access Road.           
           
	REVISED Landscape Plant Schedule for Turfgrass SOD, Turfgrass, Upland            
	Meadow Establishment, and Topsoil Quantities.           
           
224	REVISED Turfgrass SOD and Wet Meadow Establishment for SWM Facilities.           
           
	REVISED Turfgrass Establishment in SWM Access Road.           
           
	REVISED Type “A” Soil Matting in between SGW 5-1 and Roadway.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
224	REVISED Planting for Carex Lacustris, Panicum Virgatum, and Sagittaria Latifolia.            
           
	REVISED Landscape Plant Schedule for Turfgrass SOD, Turfgrass, Wet            
	Meadow Establishment, Type “A” Soil Matting, Carex Lacustris, Panicum            
	Virgatum, and Sagittaria Latifolia Quantities.           
           
226	REVISED to Show GS-6.2 BMP ID.           
           
227	REVISED Lowland Meadow Establishment for SWM Facilities (Rain Gardens).           
           
	REVISED Landscape Plant Schedule for Lowland Meadow Establishment Quantity.           
           
230	REVISED Landscape Plant Schedule for Turfgrass SOD, Turfgrass, Wet            
	Meadow Establishment, Lowland Meadow Establishment, Type “A” Soil            
	Matting, Carex Lacustris, Panicum Virgatum, and Sagittaria Latifolia Quantities.           
           
354	ADDED the omitted Class 1 Excavation Quantities for the NB Entrance Ramp            
	(STA. 100+50 to 107+00) and Brandywine Rd (STA. 3597+00 to 3602+50) in            
	the Summary of Earthwork.           
           
355	REVISED the Summary of Earthwork for Brandywine Rd (STA. 3609+00 to            
	3623+84) to correct errors.           
           
357	REVISED the total Class 1 Excavation and Common Borrow quantities under the            
	Proposal Quantities (All Sheets).           
           
364	ADDED Blow count information to the boring logs.           
           
365	DELETED sheet in its entirety.           
           
366	ADDED Blow count information to the boring logs.           
           
367	DELETED sheet in its entirety.           
            
368	ADDED Blow count information to the boring logs.           
           
369	DELETED sheet in its entirety.           
           
370	ADDED Blow count information to the boring logs.           
           
371	DELETED sheet in its entirety.           
           
372	ADDED Blow count information to the boring logs.           
           
CONTRACT PLANS (continued)           
           
Sheet No.	Description           
           
373	DELETED sheet in its entirety.           
           
374	ADDED Blow count information to the boring logs.           
           
375	DELETED sheet in its entirety.           
           
376	ADDED Blow count information to the boring logs.           
           
377	DELETED sheet in its entirety.           
           
378	ADDED Blow count information to the boring logs.           
           
378	DELETED the table for Soil Laboratory Test Results.           
           
           
Questions relating to this Addendum No. 3 may be directed in writing to:           
           
Mr. Jason A. Ridgway           
Director, Office of Highway Development           
707 North Calvert Street            
Baltimore, Maryland 21202           
ATTN: Ms. MarieFrance Guiteau           
           
If time is of the essence, handwritten questions may be transmitted to FAX No. 410-209-5001.            
All questions are to be addressed to Ms. MarieFrance Guiteau, and the Contractor must identify            
the source of the question and the contract number.           
           
           
           
GREGORY I. SLATER, ACTING CHIEF ENGINEER/DEPUTY ADMINSTRATOR FOR            
PLANNING, ENGINEERING, REAL ESTATE, AND ENVIRONMENT.             
            
THIS ADDENDUM IS ISSUED TO CLARIFY, ADD TO, DELETE FROM, CORRECT            
AND/OR CHANGE THE BID DOCUMENTS TO THE EXTENT INDICATED AND IS            
HEREBY MADE PART OF THE SAID BID DOCUMENTS ON WHICH THE            
CONTRACT WILL BE BASED.  COMAR 21.05.02.08 REQUIRES THAT ALL            
ADDENDA ISSUED BE ACKNOWLEDGED; THEREFORE, PRIOR TO            
SUBMITTING YOUR BID, ATTACH THE ADDENDUM RECEIPT VERIFICATION            
FORM TO THE FRONT OF THE PROPOSAL FORM PACKET.  FAILURE TO DO SO            
MAY RESULT IN THE BID BEING DECLARED NON-RESPONSIVE.