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1 ALIGNMENT OPTIONS FOR SIGNATURE BRIDGE.
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2 Summary • Main alignment is proposed almost parallel to Prakasham barrage. • Vijayawada Side is planned to take up in two phases • Phase 1: Merging with At-Grade Bund road • Phase 2 : Connecting NH65 using Elevated Roundabout • Two options are shortlisted for merging towards Amaravati side • Option 1: Keeping round about partially in river and connecting sitanagaram directly • Option 2: Moving round about towards ghatside.
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3 Vijayawada Side Phase 1 • Vijayawada side out of total 6 lanes, 2 lanes (1 LHS + 1 RHS) arms are separated and merged along at grade Bund roads. • Remaining 4 lanes are merged with service road at mouth of existing VUP (2 cell) on NH 65. • As the level of existing service road at VUP is RL +22.2 and proposed bridge FRL is above +26m, very steep gradient is required (approximately 3.75% which is closer to exceptional gradient of 4%). • Further vertical clearance above HFL could not be satisfied in starting 40 to 60m of bridge (needs special approval from irrigation department). • Requires signalized junction development at grade.
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4 Vijayawada Side Phase 1 RAMP TOWARDS KANAKADURGA TEMLE RAMP FROM PNBS AMARAVATHI MERGING AT GRADE AMARAVATHI.
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5 Vijayawada Side Phase 1 ELEVATION TOWARDS VIJAYAWADA SIDE VUP SERVICE ROAD MERGING LOCATION.
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6 Vijayawada Side Phase 1 (Cont.) • Pros: • Quick to construct • Relatively cheaper • Requires minimal coordination with other agencies • Cons: • Acts as quick-fix solution like replacement to prakasam barrage road • Do not solve the traffic congestion issues completely • The arrived gradient on viajaywada side is relatively steeper for daily maneouvering along this gradient, • The Q at the junction get accumulate on to the bridge due to proximately of the junction to the bridge proper during the peak hours(will be assessed through traffic studies and simulation) • They could be possibiltes of vehicles collusion at the junction..
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7 Vijayawada Side Phase 2 • To make the solution complete, phase 2 is proposed in which a elevated roundabout is developed connecting existing NH65. • Part of bridge that was constructed (first 180m towards Vijayawada side shall be partially demolished for connection to NH 65 as part of the rotary. • Additional ramp for connection towards Kaleshwara rao market can be taken up..
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8 Vijayawada Side Phase 2 (Cont.) ADDIRIONAL BRIDGE CROSSING CANAL RAMP FROM PNBS AMARAVATHI MERGING AT ELEVATED ROUNDABOUT RAMP TOWARDS KANAKADURGA TEMLE.
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9 Vijayawada Side Phase 2 (Cont.) • Reduces the conflict points by providing comprehensive solution to address all the traffic movements • Avoids signalized junction • No issues with vertical clearance of structure above HFL • Gradient issues are solved • Scope for landscaping of Roundabout • Need coordination with NHAI/R&B & VMC • Need temporary blockage of certain traffic which takes time during construction. • Requires demolition of part of bride (NH-65 & 180m the proposed bridge) if planned to take up in phased manner.
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10 Amaravati Side Option 1 • Round about partially in river • Direct connection to Sitanagaram • Arm connecting round about towards Amaravati side is taken adjacent to Sitanagaram road • As the FRL at round about is RL+26 and same at Mangalagiri road is RL+25, elevated corridor with moderate slope is proposed • Existing road is retained providing access to residents of sitanagaram • Length of Stay cable bridge is 800m • In future, possibility of connecting up to amravathi Trunk roads.
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11 Amaravati Side Option 1 • Pros : • Will not obstruct ghats • Provides all-whether connectivity towards sityanagaram side • Cons : • As the roundabout falls partially in river obstruction of waterway is relatively higher.
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12 Amaravati Side Option 2 • Round about is shifted towards ghat side • Sitanagaram connection is proposed along ghat • Arm connecting round about towards Amaravati side is taken adjacent to Sitanagaram road • As the FRL at round about is RL+26 and same at Mangalagiri road is RL+25, elevated corridor with moderate slope is proposed • Existing road is retained providing access to residents of sitanagaram • Length of Stay cable bridge is 900m • Service road between elevated road and hill must be planned to cater traffic movement towards Sitanagaram side from Mangalagiri.
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13 Amaravati Side Option 2 • Pros: • Kept far away from river causing less obstruction to water flow • There is provision for landscaping and beautification with public access • Cons: • Slightly costlier compared to option 1 as length of structure increased by about 120m • As round about falls on bank, it will obstruct the existing ghat to a substantial extent.
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14 TYPOLOGY AND AESTHETICS PROPOSALS (CONCEPTUAL).
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15 Design Evolution: Twin Cable stay.
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16 Design Evolution: Twin Cable stay.
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17 Design Evolution: Twin Cable stay.
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18 Design Evolution: Twin Cable stay.
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19 Design Evolution: Twin Cable stay.
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20 Design Evolution: Twin Cable stay.
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21 Design Evolution: Sculpture – Farmer Contribution A large stylized hand emerging from the ground, gently holding or supporting wheat/rice/paddy stalks. Concept: “The hands that feed the nation.” • 1 large central hand, approximately 6–8 m high • 3–5 stylized crop stalks emerging from the palm • Stalks progressively increasing in height • Stainless steel / bronze / weathered metal finish • Circular low plinth integrated into the landscape • Low grasses and seasonal flowering planting around the base The hand should be sculptural and simplified, rather than anatomically realistic..
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22 Design Evolution: Sculpture Options Ref Image 01 Ref Image 02 Ref Image 03.
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23 Design Evolution: Sculpture Lighting Options Ref Image 01 Ref Image 02 Ref Image 03 Ref Image 04.
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24 Design Evolution: Twin Cable stay.
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25 Design Evolution: Side Median + Footpath.
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26 Design Evolution: Twin Cable stay Ixora varieties @ 0.60 m c/c Raphis palm@ 0.60 m c/c.
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27 Design Evolution: Median Options.
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28 Design Evolution: Central Deck Area.
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29 Design Evolution: Twin Cable stay.
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30 Design Evolution: Twin Cable stay.
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31 Design Evolution: Twin Cable stay.
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32 ADDRESS CONTACT THANK YOU. Rupa Renaissance, Unit No. 2702, 27th Floor, Plot No - D33 & D207, Juinagar, MIDC Road, TTC Indstrial Area, Navi Mumbai - 400 705 (022) 68067777 [email protected] www.assystem-india.com.