US Bridges

RTE 470 over Hudson River

Fair

Albany County, New York · .2 MI W JCT US 4 & SH 470 · Structure no. 000000004093220

Built
1924
101 years old, rebuilt 1997
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
809 ft
5 main spans
Daily traffic
12,850
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 470 over Hudson River is a steel continuous stringer/multi-beam or girder carrying RTE 470 over Hudson River in Albany County, New York. It was built in 1924 and reconstructed in 1997, so it is 101 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 12,850 vehicles a day, roughly 2% of them trucks, projected to reach 15,610 by 2041. The structure is 809 ft (246.6 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 470
CrossesHudson River
Location.2 MI W JCT US 4 & SH 470
RouteCity Street 470
CountyAlbany County
StateNew York
Coordinates42.77138, -73.68038
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length809 ft (246.6 m)
Longest span224 ft (68.2 m)
Deck width40 ft (12.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,850 (2016)
Projected traffic15,610 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$13 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 470 over Hudson River built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1997.

What condition is RTE 470 over Hudson River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does RTE 470 over Hudson River carry?

About 12,850 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is RTE 470 over Hudson River?

The structure is 809 ft (246.6 m) long with a longest span of 224 ft (68.2 m) and a deck 40 ft wide.

Who owns RTE 470 over Hudson River?

It is owned by the State Highway Agency.