US Bridges

RTE I90 over Exit 30 Ramp

Fair

Herkimer County, New York · I-90 at Exit 30 Ramp · Structure no. 000000005516049

Built
1955
70 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
19,533
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over Exit 30 Ramp is a steel stringer/multi-beam or girder carrying RTE I90 over Exit 30 Ramp in Herkimer County, New York. It was built in 1955, so it is 70 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 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 19,533 vehicles a day, roughly 32% of them trucks, projected to reach 22,505 by 2041. The structure is 51 ft (15.4 m) long and 125 ft wide.

Location

Open in Google Maps
CarriesRTE I90
CrossesExit 30 Ramp
LocationI-90 at Exit 30 Ramp
RouteInterstate 90
CountyHerkimer County
StateNew York
Coordinates43.01787, -74.98958
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length51 ft (15.4 m)
Longest span47 ft (14.3 m)
Deck width125 ft (38.1 m)
Roadway width120 ft (36.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,533 (2020)
Projected traffic22,505 by 2041
Trucks32%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn an Interstate toll segment under Secretarial agreement
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I90 over Exit 30 Ramp built?

It was built in 1955, making it 70 years old in 2025.

What condition is RTE I90 over Exit 30 Ramp 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 April 2023.

How much traffic does RTE I90 over Exit 30 Ramp carry?

About 19,533 vehicles per day (2020 count), of which roughly 32% are trucks.

How long is RTE I90 over Exit 30 Ramp?

The structure is 51 ft (15.4 m) long with a longest span of 47 ft (14.3 m) and a deck 125 ft wide.

Who owns RTE I90 over Exit 30 Ramp?

It is owned by the State Toll Authority.