US Bridges

RTE 30 over 90IX RTE I90

Fair

Montgomery County, New York · In South Amsterdam · Structure no. 000000001021050

Built
1953
72 years old, rebuilt 1992
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
237 ft
4 main spans
Daily traffic
4,496
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE 30 over 90IX RTE I90 is a steel stringer/multi-beam or girder carrying RTE 30 over 90IX RTE I90 in Montgomery County, New York. It was built in 1953 and reconstructed in 1992, so it is 72 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 4,496 vehicles a day, roughly 8% of them trucks, projected to reach 5,461 by 2041. The structure is 237 ft (72.2 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 30
Crosses90IX RTE I90
LocationIn South Amsterdam
RouteState Highway 30
CountyMontgomery County
StateNew York
Coordinates42.92399, -74.2018
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span67 ft (20.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,496 (2021)
Projected traffic5,461 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$2.9 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 30 over 90IX RTE I90 built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1992.

What condition is RTE 30 over 90IX RTE I90 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 June 2023.

How much traffic does RTE 30 over 90IX RTE I90 carry?

About 4,496 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RTE 30 over 90IX RTE I90?

The structure is 237 ft (72.2 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.

Who owns RTE 30 over 90IX RTE I90?

It is owned by the State Toll Authority.