US Bridges

RTE 50 over Alplaus Kill

Fair

Schenectady County, New York · 2.4 MI SW JCT 50 & 146A · Structure no. 000000001026320

Built
1994
31 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
124 ft
1 main span
Daily traffic
18,555
2010 count
Owner
State
State Highway Agency

About this bridge

RTE 50 over Alplaus Kill is a steel stringer/multi-beam or girder carrying RTE 50 over Alplaus Kill in Schenectady 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 18,555 vehicles a day, roughly 5% of them trucks, projected to reach 18,642 by 2041. The structure is 124 ft (37.8 m) long and 58 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesRTE 50
CrossesAlplaus Kill
Location2.4 MI SW JCT 50 & 146A
RouteState Highway 50
CountySchenectady County
StateNew York
Coordinates42.89882, -73.90879
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length124 ft (37.8 m)
Longest span120 ft (36.5 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,555 (2010)
Projected traffic18,642 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 50 over Alplaus Kill built?

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

What condition is RTE 50 over Alplaus Kill 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 March 2024.

How much traffic does RTE 50 over Alplaus Kill carry?

About 18,555 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is RTE 50 over Alplaus Kill?

The structure is 124 ft (37.8 m) long with a longest span of 120 ft (36.5 m) and a deck 58 ft wide.

Who owns RTE 50 over Alplaus Kill?

It is owned by the State Highway Agency.