DPW_--ADDENDUM-SOUTH_ARROYO_CROSSING_IMPROVEMENTS-AUGUST_2018_ADDENDUM_(1).pdf

GENERAL CONSTRUCTION NOTES:

1. THE CONTRACTOR SHALL CONSTRUCT TEMPORARY BYPASS ROAD IN

CONJUNCTION WITH THE TRAFFIC CONTROL PLAN. THE CONTRACTOR IS

RESPONSIBLE FOR MAINTAINING THE TEMPORARY BYPASS ROAD

THOUGHOUT THE DURATION OF THE PROJECT AS PER NMDOT STANDARD

SPECIFICATIONS FOR HIGHWAY AND BRIDGE CONSTRUCTION (SSHBC)

SECTION 405, DETOUR PAVEMENTS.

2. THE CONTRACTOR SHALL BLADE AND GRADE THE BYPASS ROAD TO A

SMOOTH AND CONTINUOUS ALIGNMENT WITH MINIMUM RADIUS OF

CURVATURE AS SHOWN. ELEVATION TO MATCH EXISTING PAVEMENT

ELEVATION OF HEADQUARTERS AVE.

3. REMOVE AND DISPOSE OF SILT ON THE ARROYO (MIN. 12”) TO THE WSMR

LANDFILL PRIOR TO CONSTRUCTING THE BYPASS ROAD.

4. SCARIFY AND BUILT UP THE BYPASS ROAD AS SHOWN ON THE CROSS

SECTION: 24 FT WIDE ROAD WITH 2% CROWN SLOPE; EMBANKMENT SLOPES

NO STEEPER THAN 3:1. CONTRACTOR MAY USE WSMR BORROW PITS. ALL

FILL MATERIALS SHALL BE COMPACTED IN IN LIFTS NOT TO EXCEED 8”.

PREPARE SUBGRADE AS PER SECTION 207 OF NMDOT SSHBC, 2014 ED.

PROVIDE, INSTALL AND COMPACT TYPE II BASE COURSE MATERIAL AS PER

SECTION 303 OF THE NMDOT SSHBC, 2014 ED. PRIME COAT AND PLACE 1.5”

THICK CLASS B ASPHALT MIX PERFORMANCE GRADE PG 64-22.

5. INSTALL FIVE 42” DIAMETER CORRUGATED METAL PIPE (CMP) AS PER

SECTION 206 OF NMDOT SSHBC, 2014 ED. CMP SHALL BE GALVANIZED GAGE

14 WITH 2-2/3” x ½” CORRUGATIONS AND CAPABLE TO WITHSTAND H20 AND

H25 LIVE LOADS.

6. INCLUDE TEMPORARY LANE MARKINGS ON THE BYPASS ROAD, BOTH

CENTER AND EDGE LINES.

7. UPON COMPLETION AND ACCEPTANCE OF THE WORK, THE CONTRACTOR

SHALL REMOVE THE TEMPORARY BYPASS ROAD; DISPOSE OF MATERIALS

TO THE RECYCLING CENTER AND/OR LANDFILL ACCORDINGLY; AND RE-

ESTABLISH SURROUNDING AREA TO ORIGINAL OR BETTER CONDITIONS

WITH SURFACE RUNOFF FLOW INTO THE ARROYO.