US Bridges

Dyke RD over 90IX RTE I90

Fair

Herkimer County, New York · 2.9 MI E I90 Exit 31 Ramp · Structure no. 000000005516130

Built
1954
71 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
214 ft
4 main spans
Daily traffic
5,940
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

Dyke RD over 90IX RTE I90 is a steel stringer/multi-beam or girder carrying Dyke RD over 90IX RTE I90 in Herkimer County, New York. It was built in 1954, so it is 71 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 5,940 vehicles a day, roughly 7% of them trucks, projected to reach 7,215 by 2041. The structure is 214 ft (65.2 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesDyke RD
Crosses90IX RTE I90
Location2.9 MI E I90 Exit 31 Ramp
RouteCounty Highway 0
CountyHerkimer County
StateNew York
Coordinates43.09711, -75.15207
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length214 ft (65.2 m)
Longest span68 ft (20.7 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,940 (2021)
Projected traffic7,215 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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$2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dyke RD over 90IX RTE I90 built?

It was built in 1954, making it 71 years old in 2025.

What condition is Dyke RD 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 July 2023.

How much traffic does Dyke RD over 90IX RTE I90 carry?

About 5,940 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Dyke RD over 90IX RTE I90?

The structure is 214 ft (65.2 m) long with a longest span of 68 ft (20.7 m) and a deck 33 ft wide.

Who owns Dyke RD over 90IX RTE I90?

It is owned by the State Toll Authority.