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		  		MARYLAND STATE HIGHWAY ADMINISTRATION           
OFFICE OF HIGHWAY DEVELOPMENT          
DESIGN TECHNICAL SERVICES DIVISION          
707 NORTH CALVERT STREET          
BALTIMORE, MARYLAND 21202          
          
November 10, 2015          
          
Contract No.: MO3515172          
F.A.P. No.: N/A          
Description: I-270 at Watkins Mill Road Interchange          
          
ADDENDUM NO. 2          
          
To All Purchasers of Contract Documents:          
          
Please be advised that the Bid Opening date for this contract is still           
scheduled for November 24, 2015.          
          
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          
          
125-126 DELETED Special Provisions Insert “SECTION – 440 PRESTRESSED           
CONCRETE BEAMS AND SLAB PANELS”.          
          
272A-G ADDED Special Provision “SECTION 876 – WATER AND SANITARY           
SEWER” for the relocation of Washington Suburban Sanitary Commission           
facilities.          
          
SCHEDULE OF PRICES          
          
Note: For your convenience a NEW abbreviated list has been posted on the           
SHA Web site at www.roads.maryland.gov, under the “Business Center” page,           
under “Contracts, Bids & Proposals – Construction Contracts – Project           
Quantities.”           
          
Page No. Description          
          
395 REVISED Category Code, Description, and Unit of Item No. 1030 from           
(121140) 7,500 EACH of “PRECAST TEMPORARY 32 INCH F SHAPE CONCRETE           
TRAFFIC BARRIER TERMINAL END” to (121150) 7,500 LINEAR FEET of “PRECAST           
TEMPORARY 32 INCH F SHAPE CONCRETE TRAFFIC BARRIER”.          
          
398 ADDED Item No. 2012 (201030) 172 CUBIC YARDS of “CLASS 1           
EXCAVATION, PIPE EXTENSION 15294X0 (S10)”.          
          
          
SCHEDULE OF PRICES (continued)          
          
Page No. Description          
          
399 REVISED Description of Item No. 3005 (372124) from “TRIPLE WR INLET           
– MINIMUM DEPTH” to “TRIPLE WR INLET – MINIMUM DEPTH (PRECAST)”.          
          
401 REVISED Description of Item No. 3016 (372125) from “TRIPLE WR INLET           
– VERTICAL DEPTH” to “TRIPLE WR INLET – VERTICAL DEPTH (PRECAST)”.          
          
404 DECREASED Quantity of Item No. 3036 (302430) “30 INCH REINFORCED           
CONCRETE PIPE, CLASS IV” from 953 to 765 LINEAR FEET.          
          
406 DECREASED Quantity of Item 3048 No. (354418) “STANDARD TYPE C           
ENDWALL FOR 18 INCH PIPE” from 2 to 1 EACH.          
          
409 DELETED Item No. 3065 (379120) 15 EACH of “STANDARD TYPE S INLET,           
DOUBLE GRATE TANDEM – MINIMUM DEPTH”.          
          
DELETED Item No. 3066 (379122) 10 LINEAR FEET of “STANDARD TYPE S           
INLET, DOUBLE GRATE TANDEM – VERTICAL DEPTH” .          
          
412 INCREASED Quantity of Item No. 3079 (380645) “96 INCH DIAMETER           
MANHOLE - VERTICAL DEPTH” from 4 to 14 LINEAR FEET.          
          
418 ADDED Item No. 3116 (300000) 1 LUMP SUM of “30 INCH RCP JACK &           
BORE”.          
          
ADDED Item No. 3117 (300000) 1 EACH of “SIDE TAPER PIPE INLET”.          
          
419 DECREASED Quantity of Item No. 4003 (400000) “CONCRETE COPING –           
RETAINING WALL NO 15467R0 (S8)” from 476 to 455 LINEAR FEET.          
          
REVISED Description and Unit and INCREASED Quantity of Item No. 4004 from           
(400000) 1 LUMP SUM of “BOX CULVERT NO. 15465XO – 12’x6’ STA 809+07           
(S6)”to (400000) 290 CUBIC YARDS of “GRADED AGGREEGATE BASE (S6)”.          
          
DELETED Item No. 4006 (410005) 1 LUMP SUM of “MAINTENANCE OF STREAM           
FLOW – PIPE EXTENSION 15294X0 (S10)”.          
          
420 DELETED Item No. 4007 (410005) 1 LUMP SUM of “MAINTENANCE OF STREAM           
FLOW – BOX CULVERT 15465X0 (S6)”.          
          
DELETED Item No. 4008 (410005) 1 LUMP SUM of “MAINTENANCE OF STREAM           
FLOW – BOX CULVERT 15293X0 (S11)”.          
          
SCHEDULE OF PRICES (continued)          
          
Page No. Description          
          
420 DELETED Item No. 4009 (410005) 1 LUMP SUM of “MAINTENANCE OF STREAM           
FLOW BRIDGE NO. 1520100 (S4)”.          
          
421 INCREASED Quantity of Item No. 4013 (417105) “CLASS 3 EXCAVATION –           
BRIDGE NO. 1520100 (S4)” from 286 to 723 CUBIC YARDS.          
          
DECREASED Quantity of Item 4016 (417105) “CLASS 3 EXCAVATION –           
RETAINING WALL NO. 15467R0 (S8)” from 950 to 600 CUBIC YARDS.          
          
422 INCREASED Quantity of Item 4023 (421122) “DYNAMIC PILE MONITORING –           
RETAINING WALL NO. 15466R0 (S7) from 6 to 7 EACH.          
          
423 INCREASED Quantity of Item 4026 (421123) “CAPWAP – RETAINING WALL           
NO. 15466R0 (S7) from 6 to 7 EACH.          
          
424 INCREASED Quantity of Item No. 4031 (421140) “STEEL HP 12 X 53           
BEARING PILE – RETAINING WALL NO. 15463R0 (S3)” from 2,192 to 2,262           
LINEAR FEET.          
          
INCREASED Quantity of Item 4032 (421140) “STEEL HP 12 X 53 BEARING           
PILE – RETAINING WALL NO. 15464R0 (S5)” from 2,822 to 4,916 LINEAR FEET.          
          
INCREASED Quantity of Item 4035 (421150) “STEEL HP 14 X 73 BEARING           
PILE – RETAINING WALL NO. 15466R0 (S7)” from 7,300 to 7,686 LINEAR FEET.          
          
425 DECREASED Quantity of Item No. 4037 (421160) “STEEL HP 14 X 102           
BEARING PILE – RETAINING WALL NO. 15470R0 (S15) from 475 to 149 LINEAR           
FEET.          
          
INCREASED Quantity of Item 4039 (421185) “STEEL HP 12 X 53 BEARING           
TEST PILE – RETAINING WALL NO. 15464R0 (S5)” from 84 to 108 LINEAR FEET.          
          
REVISED Category Code No. and Description of Item No. 4040 from           
(421190) “STEEL HP 12 X 74 BEARING TEST PILE – BRIDGE NO. 1520100 (S4)”           
to (421155) “STEEL HP 14 X 89 BEARING PILE – BRIDGE NO. 1520100 (S4)”.          
          
REVISED Category Code and Description and INCREASED Quantity of Item No.           
4040 from (421190) 826 LINEAR FEET of “STEEL HP 12 X 74 BEARING TEST PILE           
– BRIDGE NO. 1520100 (S4)” to (421155) 1,188 LINEAR FEET of “STEEL HP 14           
X 89 BEARING PILE – BRIDGE NO. 1520100 (S4)”.          
          
SCHEDULE OF PRICES (continued)          
          
Page No. Description          
          
426 INCREASED Quantity of Item 4043 (421195) “STEEL HP 14 X 73 BEARING           
TEST PILE – RETAINING WALL NO. 15466R0 (S7)” from 128 to 208 LINEAR FEET.          
          
INCREASED Quantity of Item No. 4044 (421200) “STEEL HP 14 X 89           
BEARING TEST PILE – BRIDGE NO. 1520100 (S4)” from 25 to 31 LINEAR FEET.          
          
437 DELETED Item No. 4112 (492945) 236 SQUARE YARDS of “RIPRAP SLOPE           
PROTECTION FOR BRIDGE – RETAINING WALL NO. 15470R0 (S 15).          
          
441 INCREASED Quantity of Item 4138 (400000) “GRADED AGGREGATE BASE –           
PIPE EXTENSION 15294X0 (S10)” from 172 to 198 CUBIC YARDS.          
          
441A ADDED Item 4139 (417105) 198 CUBIC YARDS “CLASS 3 EXCAVATION –           
STRUCTURE NO. 15294X0 (S10)”.          
          
ADDED Item No. 4140 (421140) 189 LINEAR FEET of “STEEL HP 12x53           
BEARING PILE, (S6)”.          
          
ADDED Item No. 4141 (421200) 163 LINEAR FEET of “STEEL HP 14 x 89 BEARING           
TEST PILE STRUCTURE NO. 15469R0 (S14)”.          
          
445 ADDED Item No. 5023 (585433) 300 LINEAR FEET of “5 INCH WHITE           
PAVEMENT MARKING PAINT LINES”.          
          
446 REVISED Description of Item No. 6002 (600000) from “MODIFIED TYPE A           
COMBINATION CURB AND GUTTER 12 INCH GUTTER PAN 8 INCH DEPTH” to (600000)           
“MODIFIED TYPE A COMBINATION CURB AND GUTTER 12 INCH GUTTER PAN 12 INCH           
DEPTH”.          
          
447 INCREASED Quantity of Item No. 6007 (620163) “42 INCH F SHAPE           
CONCRETE TRAFFIC BARRIER SINGLE FACE TYPE 3” from 1,094 to 1,969 LINEAR           
FEET.          
          
DELETED Item No. 6011 (660482) 2,937 LINEAR FEET of “TRAFFIC           
BARRIER W BEAM USING 6 FOOT POST”.          
          
INCREASED Quantity of Item No. 6012 (660484) “BROWN POLYESTER           
COATED TRAFFIC BARRIER W BEAM USING 6 FOOT POST” from 630 to 3,567 LINEAR           
FEET.          
          
          
          
SCHEDULE OF PRICES (continued)          
          
Page No. Description          
          
448 REVISED Category Code and Description and INCREASED Quantity of           
Item No. 6013 (661392) from17 EACH of “TRAFFIC BARRIER THRIE BEAM           
ANCHORAGE AT (JERSEY OR F SHAPE) CONCRETE TRAFFIC BARRIER SINGLE FACE           
TERMINAL END” to (661393) 18 EACH of “BROWN POLYESTER COATED TRAFFIC           
BARRIER THRIE BEAM ANCHORAGE AT (JERSEY OR F SHAPE) CONCRETE TRAFFIC           
BARRIER SINGLE FACE TERMINAL END”.          
          
DELETED Item No. 6014 (661510) 8 EACH of “TYPE C TRAFFIC BARRIER           
END TREATMENT”.          
          
INCREASED Quantity of Item No. 6015 (661514) “BROWN POLYESTER           
COATED TYPE C TRAFFIC BARRIER END TREATMENT” from 1 to 10 EACH.          
          
REVISED Category Code and Description of Item No. 6016 from           
(661525) “TYPE F TRAFFIC BARRIER END TREATMENT” to (661529) “BROWN           
POLYESTER COATED TYPE F TRAFFIC BARRIER END TREATMENT”.          
          
INCREASED Quantity of Item No. 6017 (661540) “TYPE K TRAFFIC BARRIER END           
TREATMENT, ANY OPTION” from 6 to 8 EACH.          
          
DELETED Item No. 6018 (661540) 2 EACH of “TYPE K TRAFFIC BARRIER END           
TREATMENT, ANY OPTION”.          
          
451 REVISED Category Code and Unit of Item No. 7010 from (705400)           
227,857 POUNDS of “TEMPORARY SEED” to (705405) 227,857 SQUARE YARDS of           
“TEMPORARY SEED”.          
          
454 REVISED Category Code and Description of Item No. 8001 (800000) “48           
INCH WATER VALVE AND VAULT” to (811448) “48 INCH HORIZONTAL VALVE AND           
VAULT”.          
          
INCREASED Quantity of Item No. 8002 (800000) “8 INCH AIR/VACUUM           
VALVE AND VAULT” from 3 to 4 EACH.          
          
REVISED Category Code and Description and DECREASED Quantity Item           
No. 8004 from (800000) 3 EACH of “WSSC TYPE ‘B’ BLOWOFF FOR WATER MAIN”           
to (812166) 2 EACH of “BLOWOFF TYPE A”.          
          
457 INCREASED Quantity of Item No. 8021 (805118) “4 INCH SCHEDULE 80           
RIGID PVC CONDUIT-BORED” from 1,010 to 1,645 LINEAR FEET.          
          
          
SCHEDULE OF PRICES (continued)          
          
Page No. Description          
          
457 DELETED Item No. 8022 (805118) 1,635 LINEAR FEET of “4 INCH           
SCHEDULE 80 RIGID PVC CONDUIT-BORED”.          
          
INCREASED Quantity of Item No. 8025 (805140) “4 INCH SCHEDULE 80           
RIGID PVC CONDUIT-TRENCHED” from 1,705 to 2,010 LINEAR FEET.          
          
458 DELETED Item No. 8026 (805140) 305 LINEAR FEET of “4 INCH SCHEDULE           
80 RIGID PVC CONDUIT-TRENCHED”.          
          
460 DECREASED Quantity of Item No. 8040 (812333) “10 INCH DUCTILE IRON           
PIPE WATER MAIN CLASS 54” from 100 to 74 LINEAR FEET.          
          
REVISED Category Code and Description and INCREASED Quantity of           
Item 8041 (812413) 5,000 LINEAR FEET of “48 INCH DUCTILE IRON PIPE WATER           
MAIN CLASS 54” to (812415) 5,184 LINEAR FEET of “48 INCH DUCTILE IRON           
PIPE WATER MAIN CLASS 56”.          
          
INCREASED Quantity of Item 8042 (812550) “PRECAST SEWER MANHOLE (48           
INCH) – VERTICAL DEPTH” from 200 to 304 LINEAR FEET.          
          
DECREASED Quantity of Item 8043 (812585) “15 INCH POLYVINYL           
CHLORIDE SEWER LINE” from 5,000 to 3,874 LINEAR FEET.          
          
465 INCREASED Quantity of Item No. 8068 (837001) “GROUND ROD – ¾ INCH           
DIAMETER X 10 FOOT LENGTH” from 87 to 104 EACH.          
          
DELETED Item No. 8069 (837001) 17 EACH of “GROUND ROD – ¾ INCH           
DIAMETER X 10 FOOT LENGTH”.          
          
467C ADDED Item No 8099 (812129) 10 EACH of“TEST STATION”.          
          
ADDED Item No. 8100 (812551) 113 LINEAR FEET of “PRECAST SEWER           
MANHOLE (60 INCH) – VERTICAL DEPTH”.          
          
ADDED Item No. 8101 (812560) 16 LINEAR FEET of “DROP MANHOLE TYPE A           
– VERTICAL DEPTH” .          
          
ADDED Item No. 8102 (812561) 17 LINEAR FEET of “DROP MANHOLE TYPE B           
– VERTICAL DEPTH”.          
          
ADDED Item No. 8103 (812567) 12 EACH of “ABANDON SEWER MANHOLE (48           
INCH)”.          
          
          
SCHEDULE OF PRICES (continued)          
          
Page No. Description          
          
467Ca ADDED Item No. 8104 (812660) 892 LINEAR FEET of “14 INCH DUCTILE           
IRON PIPE CLASS 54 SEWER LINE”.          
          
4674D ADDED Listing for “AGGREGATE AMOUNT AT UNIT PRICES LTERNATE A IS           
USING BID”.          
          
CONTRACT PLANS          
          
Sheet No. Description          
          
1 ADDED Revision note to “TITLE SHEET”.          
          
2 ADDED note for revised sheets.          
          
13A ADDED NEW SHEET, Modified Traffic Barrier Detail.          
          
27 REVISED Notes to change “REMOVAL OF EXISTING MASONRY” to “REMOVAL           
OF CONCRETE BARRIER”.          
          
ADDED Note “ 42” F-SHAPE CONCRETE BARRIER SINGLE FACE TYPE 2 (STD           
MD 348.54) WITH 2 3-INCH CONDUIT PER MD 648.50”.          
          
28 REVISED Notes to change W-beam barrier to Brown Polyester Coated W-          
beam barrier.          
          
REVISED Notes to change “Traffic Barrier Thrie Beam Anchorage at           
(Jersey or F shape) Concrete Traffic Barrier Single Face (ST MD 605.46)”           
to “Brown pol. Coated Traffic Barrier Thrie Beam Anchorage at (Jersey or           
F shape) Concrete Traffic Barrier Single Face (STD. MD 605.46)”.          
          
ADDED Notes “42” F-Shape Concrete Barrier Single Face Type 2 (STD           
MD 348.54) with 2 3-Inch Conduit Per MD 648.50”.          
          
REVISED Notes to change “Type F Traffic Barrier End Treatment (Sha           
Qpl)” To “Brown Pol. Coated Type F Traffic Barrier End Treatment (Sha           
Qpl)”.          
          
28 REVISED Notes to change “Traffic Barrier W Beam Using 6 Foot Post           
(STD. MD 605.25)” To “Brown Poly. Coated Traffic Barrier W Beam Using 6           
Foot Post (STD. MD 605.25)”.          
          
REVISED Notes to change “Traffic Barrier Thrie Beam Anchorage at           
(Jersey Or F Shape) Concrete Traffic Barrier Single Face (STD. MD           
605.46)” To “Brown Pol. Coated Traffic Barrier Thrie Beam Anchorage At           
(Jersey Or F Shape) Concrete Traffic Barrier Single Face (STD. MD           
605.46)”.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
29 ADDED note “TO BE INSTALLED BY JACK AND BORE” for 188 LINEAR FEET           
30” RCP to be installed between MH-5-3 and MH-5-2A.          
          
REVISED “24” RCP” label to “30” RCP” for pipe between I-5-2 to MH-          
5-3.           
          
REVISED note to change “Type C Traffic Barrier End Treatment (STD.           
MD 605.03)” To “Brown Pol. Coated Type C Traffic Barrier End Treatment           
(STD. MD 605.03)”.          
          
30-31 REVISED Notes to change W-beam barrier to Brown Polyester Coated W-          
beam barrier.          
          
33-34 REVISED Notes to change W-beam barrier to Brown Polyester Coated W-          
beam barrier.          
          
35 REVISED Note to change “Traffic Barrier W Beam Using 6 Foot Post           
(Std. Md 605.25)” To “Brown Poly. Coated Traffic Barrier W Beam Using 6           
Foot Post (Std. Md 605.25)”.          
          
REVISED Note to change “Type C Traffic Barrier End Treatment (Std.           
Md 605.03)” To “Brown Pol. Coated Type C Traffic Barrier End Treatment           
(Std. Md 605.03)”.          
          
41 REVISED callout for proposed 14” Sanitary Line on Profile Sheet.          
          
50 REVISED typical section and temporary sign location for I-270           
southbound.          
          
51 REVISED lane shift length, tie-in location of temporary pavement           
markings to existing pavement markings, locations of channelizing drums           
and temporary signs along I-270 southbound.          
          
52 REVISED lane shift length, location of temporary pavement markings,           
locations of temporary concrete barrier along I-270 southbound.          
          
53 REVISED lane shift length, tie-in location of temporary pavement           
markings to existing pavement markings, locations of channelizing drums           
and temporary signs along I-270 southbound.          
          
83 ADDED note to indicate 188 LINEAR FEET 30” RCP to be installed by           
jack and bore to Profile for “I-270 Stormdrain from I-270 NB on ramp STA. 205+78 to I-270 STA 267+08” for proposed 188 LINEAR FEET 30” RCP between           
MH-5-3 and MH-5-2A.          
          
86 REVISED call out from “72”RCP SEE DP-09” to “72”RCP SEE DP-10”.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
88 REVISED riprap and proposed ground line at the outfall in the           
“12’x6’ Box Culvert S6 Profile Section A-A”.          
          
91 REVISED MH-6-5 Total Depth from 12.19 Ft to 24.19 FT.          
          
REVISED MH-6-5 Vertical depth from 3.19 Ft to 13.94 FT.          
          
REVISED remarks for I-3-1 and I-4-3 to include “SEE DD-06A”.          
          
93 ADDED note “* 188 LINEAR FEET 30” RCP FROM MH-5-3 TO MH-5-2A TO BE           
INSTALLED BY JACK AND BORE METHOD” below pipe schedule.          
          
96A ADDED “REVISED PRECAST STANDARD TYPE S COMBINATION INLET DOUBLE           
GRATE TANDEM” with revised note for I-3-1.           
          
ADDED “REVISED STANDARD SINGLE OR DOUBLE OPENING TYPE K INLET OPEN-END           
GRATE” with revised note for I-4-3.          
          
98 REVISED “18” RCP” label to “15” RCP” for pipe between I-10-5 to I-          
10-1.           
          
112 REVISED pipe size callout from 36” to 42” RCP.          
          
121 REVISED stationing associated with Riffle Section with           
Underlayment.          
          
123-125 REVISED Streambed Underlayment labels.          
          
129 REVISED Streambed Underlayment labels.          
          
133-135 ADDED Streambed Underlayment labels.          
          
REVISED Streambed Underlayment Schedule.          
          
138 ADDED Streambed Underlayment label.          
          
ADDED Streambed Underlayment Schedule.          
          
160 ADDED note limiting disturbance area at any given time.          
          
161 ADDED note limiting disturbance area at any given time. Sheet           
revised to clearly define grading units and construction sequence.           
          
165-166 ADDED sheet numbers          
          
179-185 REMOVED note 2 and renumbered the notes.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
186 REMOVED note 2.          
          
233 Structure S1. REVISED the call out for Select Borrow beyond the           
MSE wall strips.          
          
243 Structure S2. ADDED the concrete mix type for the cast-in-place           
concrete panel for pipe pass through.          
          
257 Structure S3. REVISED the bottom of footing elevation for Section           
C-C.          
          
258 Structure S3. REVISED the beginning station of the wall footing.          
          
260 REPLACED sheet. Structure S4.          
          
REVISED the beginning station of the wall footing and Section C-C length.          
          
262 REPLACED sheet. Structure S4.          
          
REVISED the beginning station of the wall footing and Section C-C length.          
          
265 Structure S3. REVISED the wall height due to change in the bottom           
of footing elevation for Section C-C.          
          
266 REPLACED sheet. Structure S3.          
          
ADDED an additional Section D-D to show the expansion joint between           
Structure S3 and Structure S4, Wing Wall III.          
          
268 REPLACED sheet. Structure S3.          
          
REVISED the architectural finish thickness in standard detail SUB-          
EP(42F)-101.          
          
276 REPLACED sheet. Structure S4.          
          
ADDED notes to General Plan and Elevation sheet.          
          
277 Structure S4. REVISED Structural Steel note.          
          
279 REPLACED sheet. Structure S4.          
          
ADDED dimensions and concrete deck superelevation transition table.          
          
280 REPLACED sheet. Structure S4.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
280 MODIFIED Abutment A bottom of footing elevation and added           
dimensions, section call outs and detail between retaining wall and wing           
wall stems.          
          
281 REPLACED sheet. Structure S4.          
          
MODIFIED pile layout for Abutment A.          
          
282 REPLACED sheet. Structure S4.          
          
MODIFIED top and bottom mat reinforcing layouts for Abutment A.          
          
283 REPLACED sheet. Structure S4.          
          
ADDED Note 4 to the Abutment A Corner Details sheet.          
          
284 REPLACED sheet. Structure S4.          
          
MODIFIED Abutment A bottom of footing elevation and added dimensions.          
          
285 REPLACED sheet. Structure S4.          
          
MODIFIED Abutment B bottom of footing elevation and added dimensions and           
section call outs.          
          
286 REPLACED sheet. Structure S4.          
          
MODIFIED pile layout for Abutment B.          
          
287 REPLACED sheet. Structure S4.          
          
MODIFIED top and bottom mat reinforcing layouts for Abutment B.          
          
288 REPLACED sheet. Structure S4.          
          
ADDED dimensions to the expansion beam columns, added Note 4 and modified           
the expansion bearing masonry pads to the Abutment B Corner Details           
sheet.          
          
288A REPLACED sheet. Structure S4.          
          
ADDED the dimension to the expansion beam column and modified the           
expansion beating masonry pads to the Abutment B Corner Details sheet.          
          
289 REPLACED sheet. Structure S4.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
289 MODIFIED Abutment B bottom of footing elevation and added           
dimensions.          
          
290 REPLACED sheet. Structure S4.          
          
290 MODIFIED Abutment A and B and associated wing wall bottom of           
footing elevations and added dimensions, notes and section call outs.          
          
291 REPLACED sheet. Structure S4.          
          
ADDED notes and dimensions. Changed footing reinforcing.           
          
292 REPLACED sheet. Structure S4.          
          
ADDED dimensions to Section D-D and new detail for limits of ashlar stone           
form liner finish.          
          
293 REPLACED sheet. Structure S4.          
          
REVISED length of pier stem and layout of ashlar stone form liner finish           
and added optional construction joint.          
          
294 REPLACED sheet. Structure S4.          
          
REVISED call out of top and bottom mat footing reinforcement.          
          
295 REPLACED sheet. Structure S4.          
          
REVISED the layout of the ashlar stone form liner finish and added           
optional construction joint.          
          
296 REPLACED sheet. Structure S4.          
          
REVISED the layout of the ashlar stone form liner finish and added           
optional construction joint.          
          
297 REPLACED sheet. Structure S4.          
          
ADDED new Note 8 and call out for the east and west parapets and the           
concrete deck superelevation transition table.          
          
298 REPLACED sheet. Structure S4.          
          
MODIFIED working line note, revised Layout Detail ‘A’, and changed the           
bearing type for Abutment B.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
299-300 Structure S4. ADDED shear stud connector note of three studs           
per row.          
          
302 REPLACED Sheet. Structure S4.          
          
ADDED headings to the splice details and revised Note 2.          
          
303 REPLACED sheet. Structure S4.          
          
REPLACED the multi-directional bearing with the bearing ME50-III at           
Abutment B.          
          
304-305 REPLACED sheets. Structure S4.          
          
MODIFIED the welds and length of overlap between the angles and gusset           
plates.          
          
306 REPLACED sheet. Structure S4.          
          
ELIMINATED Deck Pouring Sequence B from the plans.          
          
ADDED detail for additional transverse reinforcing over Girders 2 and 3.          
          
307-308 REPLACED sheets. Structure S4.          
          
REVISED the parapet call outs to east and west parapets and included the           
concrete deck superelevation transition table.          
          
309-311 REPLACED sheets. Structure S4.          
          
REVISED the parapet call outs to east and west parapets and added note           
about safety fence not shown.          
          
311A REPLACED sheet. Structure S4.          
          
ADDED notes concerning parapet and paraffin control joints.          
          
312 REPLACED sheet. Structure S4.          
          
DELETED standard details for special bearing pads and stepped footing.          
          
ADDED standard details for drainage and utilities through backwalls.          
          
313 REPLACED sheet. Structure S4.          
          
REVISED the architectural finish thickness in standard detail SUB-          
EP(42F)-105.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
313A ADDED new sheet. Structure S4.          
          
ADDED standard details for end posts, SUB-EP(42F)-101.          
          
314 REPLACED sheet. Structure S4.          
          
REMOVED stepped expansion joint detail and added cheek wall detail.          
          
317A NEW sheet. Structure S4.          
          
ADDED standard details for concrete diaphragms at abutments with fixed           
bearings, SUP-BD(SG)-301.          
          
318 REPLACED sheet. Structure S4.          
          
ADDED call outs for the bearing types at the abutments and pier.           
          
319 REPLACED sheet. Structure S4.          
          
REMOVED silicone seal joint detail.          
          
ADDED standard detail for parapet reinforcing steel placement, SUP-          
TB(MISC)-201.          
          
321 REPLACED sheet. Structure S4.          
          
REVISED the architectural finish thickness in standard detail SUP-          
TB(42F)-103.          
          
327-328 REPLACED sheet. Structure S4.          
          
REVISED the bottom of footing elevations for Abutments A and B.          
          
331-332 REVISED layout of fence posts to center them to the pilasters           
instead of the wall joints.          
          
333 REVISED dimensions along the footing to clarify layout of retaining           
wall.          
          
334 REVISED size of footing along Section B, removed Section C and           
modified dimensions along the footing due to these changes.          
          
335 ADDED dowels between this structure and the box culvert located           
between sections. Modified the estimated tip elevation for the piles and           
added required hammer energy in Pile data table.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
335 ADDED Note 14 to give contractor option of installing dowels using           
threaded dowels.          
          
336 REVISED pile tip elevation and added required hammer energy in Pile           
data table.          
          
337 REVISED pile and reinforcing steel layout to match the modification           
to this section of wall. Modified the estimated tip elevation for the           
piles and added required hammer energy in Pile data table.          
          
338 REVISED the label on this section of footing to Section B instead           
of Section C. Modified the estimated tip elevation for the piles and           
added required hammer energy in Pile data table.          
          
338A ADDED dowels between this structure and the box culvert located           
between sections.           
          
ADDED Note 11 to give contractor option of installing dowels using           
threaded dowels.          
          
338C- 338D REVISED reinforcing steel layout to match the modification to           
this section of wall.          
          
339 ADDED details to show how the key between this wall and the box           
culvert (S-6) is to be laid out.           
          
340 DELETED this sheet as it is no longer needed.          
          
341 REVISED the main reinforcing vertical steel on this sheet and relabeled as Section B.           
          
350 REVISED the expansion joint at Wingwall III to S5 connection and at           
Wingwall IV to S5 connection.          
          
ADDED the “STRUCTURAL STEEL” note to the General Notes.           
          
ADDED piles to “SECTION A-A”.          
          
352A ADDED a new sheet, “PILE PLAN”.          
          
352 ADDED note 4.          
          
REVISED locations of working points 4.1 and 4.2.          
          
REVISED “TABLE OF WORKING POINTS.”          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
352 REVISED the dimensions of the wingwall footing.          
          
ADDED a callout for the stepped footing at Wingwalls III and IV.           
          
REVISED overexcavation notes.           
          
354 REVISED working points 2.0 and 3.0.          
          
REMOVED working points 3.1 and 3.2.          
          
ADDED working points 4.0, 4.1, and 4.2.          
          
ADDED piles to the plan view.          
          
ADDED a callout for the stepped footing at Wingwalls III and IV.          
          
ADDED note 8.          
          
355 REVISED working points 2.0 and 3.0.          
          
REMOVED working points 3.1 and 3.2.          
          
ADDED working points 4.0, 4.1, and 4.2.          
          
ADDED piles to the plan view.           
          
ADDED a callout for the stepped footing at Wingwalls III and IV.          
          
355 ADDED note 8.          
          
356 REVISED working points 2.0 and 3.0.          
          
REMOVED working points 3.1 and 3.2.          
          
ADDED working points 4.0, 4.1, and 4.2.          
          
REVISED the expansion joint at Wingwall III to S5 connection and at           
Wingwall IV to S5 connection.          
          
357 REVISED working points 2.0 and 3.0.          
          
REMOVED working points 3.1 and 3.2.          
          
ADDED working points 4.0, 4.1, and 4.2.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
357 REVISED the expansion joint at Wingwall III to S5 connection and at           
Wingwall IV to S5 connection.          
          
360 ADDED piles to the elevation view.          
          
REVISED the expansion joint at Wingwall III to S5 connection and at           
Wingwall IV to S5 connection.          
          
ADDED “TYPICAL STEPPED EXPANSION JOINT DETAIL.”          
          
REVISED the elevation view footing geometry and details.          
          
REVISED notes 7 through 12.          
          
361 ADDED note 11.          
          
ADDED piles to the elevation view and typical section of Wingwalls           
III and IV.           
          
REVISED the footing of Wingwall III and IV.           
          
REVISED the expansion joint at Wingwall III to S5 connection and at           
Wingwall IV to S5 connection.           
          
362 REVISED the footing details of SECTION D-D          
          
ADDED piles to SECTION D-D          
          
362A REMOVED Standard No. RW-401.          
          
ADDED Standard No. RW-403.          
          
362E ADDED Standard No. FND-PF-202.          
          
ADDED Standard No. FND-PF-301.           
          
363 REVISED the expansion joint at Wingwall III to S5 connection and at           
Wingwall IV to S5 connection.           
          
ADDED “EST. PILE TIP ELEVATION” to Boring C-07.           
          
364-365 REVISED dimension line at bottom of Plan View to show length           
of Section B and overall wall length.          
          
366 REVISED fence layout to center the posts on the pilasters.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
366 ADDED detail showing reinforcing detail for the concrete post at           
the approach end post.          
          
367 REVISED fence layout to center the posts on the pilasters.          
          
REVISED areas showing architectural treatment of the trail end post           
and height of coping.          
          
370-372 REVISED pile data table to include the required hammer energy           
for these piles.          
          
372A ADDED dowels at the footing steps.          
          
372C ADDED dowels at the footing steps.          
          
376 REVISED detail to show height of second set of Type III fence for           
this structure.          
          
379 REVISED details showing end post to modify the thickness of the           
architectural treatment and the overhang of the parapet to match the           
section views.          
          
380 REVISED direction of dimensions of the End Post Detail so that they           
read from the right.          
          
383 REVISED trail end post of the retaining wall to show the coping           
increasing in width to extend out to jersey shape traffic barrier.          
          
385 REVISED trail end of wall to show the fence continuing to the           
traffic barrier between this wall and Structure S-13.          
          
ADDED location of contraction joints for the coping.          
          
386 ADDED location of coping contraction joints and detail showing           
dimension changes to coping at the approach end.          
          
396 REVISED General Plan to correct reference to Structure S-13.          
          
REMOVED dimensions relating to other structures and the pipe           
installation on the other side of I-270.          
          
ADDED reference to other sheets that show this pipe.          
          
398 REVISED Manhole Elevation to show limits of payment to other bid           
items.          
          
ADDED ladder rungs.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
398 REVISED limit of new pipe in the plan view and modified notes to           
clarify how items are to be paid.          
          
399 REVISED plan view to show limits of payment for Structure S-10.           
Rotated dimensions and notes so that they read from the right.          
          
ADDED label and showed waterproof membrane to the back of the           
construction joint in plan view.          
          
400 REVISED Sections C, D and E to show riprap at this location and in           
Note 7, referenced drawing that details the area of placement and size.          
          
REVISED label at bottom of these sections for type of stone used.          
          
ADDED typical section showing reinforcing pattern (moved from Sheet           
No 400A).          
          
400A REVISED Sections A and B to show all of the reinforcing steel to be           
placed in the front face and rear face of these walls. Included second           
set of sections, labeled front and rear face. Moved the typical section           
from this sheet to Sheet 400.          
          
400B REVISED the concrete collar details to show J-hooks to be attached           
to existing pipe, revised reinforcing steel, and added J-hook detail and           
notes.          
          
402-403 REVISED this sheet to show limits of payment for Structure S-          
11.          
          
409-410 REVISED this sheet with notes 5 and 6 stating payment for           
over excavation and back fill to be paid separately.          
          
412 REVISED the sections and views to show J-hooks.          
          
ADDED detail and notes for the J-hook.          
          
413 REVISED Section H to show waterproof membrane over all joints           
between the riser and the culvert.          
          
414 REVISED sections to show J-hooks.          
          
417 REVISED Section I to correct dimension of the coping width.          
          
536 REVISED fence post spacing to center the posts on the pilasters.          
          
538-540 REVISED reinforcing section showing architectural treatment           
to match Section A. Increased thickness of aggregate under pavement in           
Section A.          
          
CONTRACT PLANS (continued          
          
Sheet No. Description          
          
541 REVISED concrete collar detail to show J-hooks, revised reinforcing           
steel and correctly show over excavation and back fill under the collar.          
          
543 REVISED end post detail by rotating 180 degrees to match the           
orientation with the actual end post.          
          
          
Questions relating to this Addendum No. 2 may be directed in writing to:          
          
Mr. Jason Ridgway          
Director, Office of Highway Development          
707 North Calvert Street           
Baltimore, Maryland 21202          
ATTN: Mr. Armando Henriquez          
          
If time is of the essence, handwritten questions may be transmitted to           
FAX No. 410-209-5001. All questions are to be addressed to Mr. Armando           
Henriquez, and the Contractor must identify the source of the question           
and the contract number.          
          
          
          
          
DOUGLAS H. SIMMONS, CHIEF ENGINEER/DEPUTY ADMINSTRATOR FOR PLANNING AND           
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.