US Bridges

RTE 470 over West Branch Mohawk River

Fair

Albany County, New York · 0.1 MI E JCT I787 + SH470 · Structure no. 000000002200460

Built
1994
31 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
147 ft
2 main spans
Daily traffic
13,264
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

RTE 470 over West Branch Mohawk River is a steel continuous stringer/multi-beam or girder carrying RTE 470 over West Branch Mohawk River in Albany County, New York. It was built in 1994, so it is 31 years old, younger 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 6 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 13,264 vehicles a day, roughly 2% of them trucks, projected to reach 16,113 by 2041. The structure is 147 ft (44.8 m) long and 56 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesRTE 470
CrossesWest Branch Mohawk River
Location0.1 MI E JCT I787 + SH470
RouteState Highway 470
CountyAlbany County
StateNew York
Coordinates42.77385, -73.69473
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating81 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length147 ft (44.8 m)
Longest span72 ft (21.9 m)
Deck width56 ft (17.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,264 (2018)
Projected traffic16,113 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 470 over West Branch Mohawk River built?

It was built in 1994, making it 31 years old in 2025.

What condition is RTE 470 over West Branch Mohawk 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 September 2024.

How much traffic does RTE 470 over West Branch Mohawk River carry?

About 13,264 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is RTE 470 over West Branch Mohawk River?

The structure is 147 ft (44.8 m) long with a longest span of 72 ft (21.9 m) and a deck 56 ft wide.

Who owns RTE 470 over West Branch Mohawk River?

It is owned by the City or Municipal Highway Agency.