Donghai Bridge

{{More citations needed|date=April 2021}}{{Infobox bridge

| bridge_name = Donghai Bridge

| native_name = 东海大桥

| native_name_lang = zh

| image = Donghai Bridge.jpg

| image_upright = 1.4

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| other_name = East Sea Bridge

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| locale = Shanghai and Yangshan Port

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| design = Beam bridge with cable-stayed section

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| length = {{convert|32.5|km}}

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| mainspan = {{convert|420|m}}

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| open = {{start date|2005|12|10}}

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| coordinates = {{coord|30|45.43|N|121|58.13|E|region:CN_scale:125000_type:landmark|display=title,inline}}

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Donghai Bridge (Chinese: t {{lang|zh|{{linktext|東海|大橋}}}}, s {{lang|zh|{{linktext|东海|大桥}}}}, p Dōnghǎi Dàqiáo, Wu Tonhe Dujiau {{abbr|lit.|Literally}} "East Sea Bridge") is a Chinese bridge counted among the longest cross-sea bridges in the world. It was completed on December 10, 2005. It has a total length of {{convert|32.5|km|mi}} and connects mainland Shanghai's Pudong New Area with the offshore Yangshan Deep-Water Port in Zhejiang's Shengsi County. Most of the bridge is a low-level viaduct. There are also cable-stayed sections to allow for the passage of large ships, the largest with a span of {{convert|420|m}}. Donghai Bridge is part of the S2 Hulu Expressway.

The bridge has a long and narrow speedway and does not allow vehicles that do not meet the weight requirements.