ROUTE 85 (WASHINGTON STREET) OVER ASSABET RIVER

Transcription

1 PROJECT: BRIDGE REPLACEMENT ROUTE 85 (WASHINGTON STREET) OVER ASSABET RIVER

2 INTRODUCTION TWO (2) CONSTRUCTION STAGING ALTERNATIVES ADVANTAGES/DISADVANTAGES CONSTRUCTION SEQUENCING DURATION AND TRAFFIC MANAGEMENT TEMPORARY PEDESTRIAN BRIDGE DETOUR ROUTES TRAFFIC AND IMPACTS 2

3 3 Route 85 Bridge Replacement

4 F.W. Beers, Hudson Town,

5 Looking Southwest Route 85 Bridge Replacement 5

6 N George H. Walker & Co

7 Looking southwest, Bridge H at left, circa 1950s 7

8 8 Route 85 Bridge Replacement

9 BRIDGE CONSTRUCTION STAGING ALTERNATIVES ALTERNATIVE A : SINGLE LANE OPTION MAINTAINS SB TRAFFIC DETOURS NB TRAFFIC TEMPORARY PEDESTRIAN BRIDGE ADVANTAGES SAFER WORK ZONE SHORTER CONSTRUCTION DURATION BETTER FOR UTILITY RELOCATIONS LOWER CONSTRUCTION COST DISADVANTAGES NB TRAFFIC DETOURED FOR 9 MONTHS 9

10 BRIDGE CONSTRUCTION STAGING ALTERNATIVES ALTERNATIVE B : TEMPORARY BRIDGE OPTION MAINTAINS NB & SB TRAFFIC SINGLE LANE TEMPORARY BRIDGE TEMPORARY PEDESTRIAN BRIDGE ADVANTAGES MAINTAINS NB & SB TRAFFIC AT BRIDGE DISADVANTAGES HAZARDOUS WORK ZONE SHORT TERM NB detours LONGER CONSTRUCTION DURATION ADDITIONAL EARTH SUPPORTS DIFFICULT UTILITY RELOCATIONS HIGHER CONSTRUCTION COST 10

11 ALTERNATIVE A : SINGLE LANE OPTION 11

12 ALTERNATIVE A : SINGLE LANE OPTION 12

13 ALTERNATIVE A : SINGLE LANE OPTION 13

14 ALTERNATIVE A : SINGLE LANE OPTION 14

15 ALTERNATIVE B : TEMP. BRIDGE OPTION 15

16 ALTERNATIVE B : TEMP. BRIDGE OPTION 16

17 ALTERNATIVE B : TEMP. BRIDGE OPTION 17

18 ALTERNATIVE B : TEMP. BRIDGE OPTION 18

19 ALTERNATIVE B : TEMP. BRIDGE OPTION 19

20 ALTERNATIVE B : TEMP. BRIDGE OPTION 20

21 Construction Durations and Traffic Management Alternative A Single Lane First Season Stage 1 West side widening; Traffic maintained on existing bridge Second Season Stages 2 and 3 Northbound traffic detoured for approximately 9 months Alternative B Temporary Bridge First Season Stage 1 West side widening; Traffic maintained on existing bridge Second Season Stages 2 and 3 Northbound traffic detoured for 3 weeks during installation of temporary bridge Third Season Stages 4 and 5 Temporary bridge removed, all traffic maintained on new construction 21

22 ALTERNATIVES A & B : Route 85 Bridge Replacement PROPERTY OWNERSHIP AT OPTIONAL REMOTE LOCATION OF TEMP. PED. BRIDGE

23 ROUTE 85 NORTHBOUND DETOUR ROUTES 23

24 24 Route 85 Bridge Replacement

25 TRAFFIC AND IMPACTS 25 IMPACTS AT BRIDGE SITE McDONALD S HARDWARE STORE GAS STATIONS / AUTO REPAIR SHOPS DETOUR ROUTES TRAFFIC STUDY / VOLUME PROJECTIONS SCHOOL STREET HOUGHTON STREET BROAD STREET INCREASED VOLUMES SIGNAL TIMING ADJUSTMENTS TEMPORARY SIGNING EMERGENCY PRE-EMPTION AT SIGNALS AT SHOPPING PLAZA ACCESS / EGRESS FIRE / POLICE / AMBULANCE EMERGENCY ROUTES SCHOOLS / SCHOOL BUS ROUTES EFFECTS OF CONSTRUCTION AND THE DETOUR ROUTES

26 HUDSON CONSTRUCTION STAGING ALTERNATIVES ALTERNATIVE A - SINGLE LANE OPTION ADVANTAGES SAFER WORK ZONE REDUCED NUMBER OF CONSTRUCTION STAGES LESS TIME FOR DEMOLITION LESS TIME TO BUILD SHORTER CONSTRUCTION DURATION [2 YEARS] BETTER SUITS UTILITY RELOCATIONS COSTS LESS [$2.5M~$1M LESS] STAGE 1 CONSTRUCTION / HOUGHTON ST. COMPLETION DISADVANTAGES ROUTE 85 NB TRAFFIC IS DETOURED DETOUR DURATION [9 MONTHS] Route 85 Bridge Replacement 26

27 HUDSON CONSTRUCTION STAGING ALTERNATIVES ALTERNATIVE B TEMPORARY BRIDGE OPTION ADVANTAGES PROVIDES FOR NB & SB TRAFFIC AT BRIDGE STAGE 1 CONSTRUCTION / HOUGHTON ST. COMPLETION Route 85 Bridge Replacement DISADVANTAGES HAZARDOUS WORK ZONE BETWEEN 2 LANES OF TRAFFIC WILL REQUIRE SHORT TERM NB DETOURS [3 WEEKS FOR TEMPORARY BRIDGE] INCREASED NUMBER OF CONSTRUCTION STAGES ADDITIONAL INSTALLATION & REMOVAL OF EARTH SUPPORTS MORE TIME FOR DEMOLITION WITH INCREASED LEVEL OF DIFFICULTY MORE TIME TO BUILD LONGER CONSTRUCTION DURATION [3 YEARS] MORE DIFFICULT TO RELOCATE UTILITIES COSTS MORE [$3.5M] 27

28 RECOMMENDATIONS/CONCLUSIONS MASSDOT PREFERS CONSTRUCTION STAGING ALTERNATIVE A QUESTIONS (???) CONTACT INFO: GREG STEFANO JACOBS GREG.STEFANO@JACOBS.COM MAURY TAYARANTI MASSDOT MORTEZA.TAYARANTI@DOT.STATE.MA.US 28