US Bridges

RTE I81 over RTE 11

Fair

Cortland County, New York · JCT of Rts 11 + I-81 NB · Structure no. 000000001008432

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
245 ft
3 main spans
Daily traffic
12,643
2019 count
Owner
State
State Highway Agency

About this bridge

RTE I81 over RTE 11 is a steel stringer/multi-beam or girder carrying RTE I81 over RTE 11 in Cortland County, New York. It was built in 1966, so it is 59 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 12,643 vehicles a day, roughly 17% of them trucks, projected to reach 14,173 by 2041. The structure is 245 ft (74.7 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I81
CrossesRTE 11
LocationJCT of Rts 11 + I-81 NB
RouteInterstate 81
CountyCortland County
StateNew York
Coordinates42.65661, -76.17231
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span109 ft (33.2 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,643 (2019)
Projected traffic14,173 by 2041
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$3.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I81 over RTE 11 built?

It was built in 1966, making it 59 years old in 2025.

What condition is RTE I81 over RTE 11 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 I81 over RTE 11 carry?

About 12,643 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is RTE I81 over RTE 11?

The structure is 245 ft (74.7 m) long with a longest span of 109 ft (33.2 m) and a deck 35 ft wide.

Who owns RTE I81 over RTE 11?

It is owned by the State Highway Agency.