US Bridges

Ramp 99I NB to Ny over Canada Sullivan Science

Fair

Steuben County, New York · JCT SR 15 & I86 · Structure no. 000000001078320

Built
2005
20 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,050 ft
5 main spans
Daily traffic
9,148
2017 count
Owner
State
State Highway Agency

About this bridge

Ramp 99I NB to Ny over Canada Sullivan Science is a steel continuous stringer/multi-beam or girder carrying Ramp 99I NB to Ny over Canada Sullivan Science in Steuben County, New York. It was built in 2005, so it is 20 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 9,148 vehicles a day, roughly 13% of them trucks, projected to reach 14,043 by 2041. The structure is 1,050 ft (320 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRamp 99I NB to Ny
CrossesCanada Sullivan Science
LocationJCT SR 15 & I86
RouteInterstate 0
CountySteuben County
StateNew York
Coordinates42.15433, -77.09598
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating58.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length1,050 ft (320 m)
Longest span250 ft (76.1 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,148 (2017)
Projected traffic14,043 by 2041
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed0.6 mi (1 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$17.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ramp 99I NB to Ny over Canada Sullivan Science built?

It was built in 2005, making it 20 years old in 2025.

What condition is Ramp 99I NB to Ny over Canada Sullivan Science 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 August 2023.

How much traffic does Ramp 99I NB to Ny over Canada Sullivan Science carry?

About 9,148 vehicles per day (2017 count), of which roughly 13% are trucks.

How long is Ramp 99I NB to Ny over Canada Sullivan Science?

The structure is 1,050 ft (320 m) long with a longest span of 250 ft (76.1 m) and a deck 38 ft wide.

Who owns Ramp 99I NB to Ny over Canada Sullivan Science?

It is owned by the State Highway Agency.