US Bridges

RTE I90 over Exit 29A Ramp to 90IX EB

Fair

Herkimer County, New York · 90IX at Exit 29A · Structure no. 000000005510002

Built
1973
52 years old, rebuilt 2007
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
109 ft
1 main span
Daily traffic
9,879
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over Exit 29A Ramp to 90IX EB is a steel stringer/multi-beam or girder carrying RTE I90 over Exit 29A Ramp to 90IX EB in Herkimer County, New York. It was built in 1973 and reconstructed in 2007, so it is 52 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 9,879 vehicles a day, roughly 32% of them trucks, projected to reach 10,988 by 2041. The structure is 109 ft (33.2 m) long and 70 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

Location

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CarriesRTE I90
CrossesExit 29A Ramp to 90IX EB
Location90IX at Exit 29A
RouteInterstate 90
CountyHerkimer County
StateNew York
Coordinates43.01643, -74.81767
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
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 rating72 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length109 ft (33.2 m)
Longest span105 ft (32 m)
Deck width70 ft (21.2 m)
Roadway width67 ft (20.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,879 (2020)
Projected traffic10,988 by 2041
Trucks32%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed17.4 mi (28 km)
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I90 over Exit 29A Ramp to 90IX EB built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2007.

What condition is RTE I90 over Exit 29A Ramp to 90IX EB 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 2024.

How much traffic does RTE I90 over Exit 29A Ramp to 90IX EB carry?

About 9,879 vehicles per day (2020 count), of which roughly 32% are trucks.

How long is RTE I90 over Exit 29A Ramp to 90IX EB?

The structure is 109 ft (33.2 m) long with a longest span of 105 ft (32 m) and a deck 70 ft wide.

Who owns RTE I90 over Exit 29A Ramp to 90IX EB?

It is owned by the State Toll Authority.