US Bridges

RTE 11 over Tioughnioga River

Fair

Broome County, New York · JCT US11 & Tioughnioga Rv · Structure no. 000000001008320

Built
1947
78 years old, rebuilt 1993
Condition
Fair
inspected October 2023
Type
Girder and Floorbeam System
Steel
Length
334 ft
3 main spans
Daily traffic
9,205
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 11 over Tioughnioga River is a steel girder and floorbeam system carrying RTE 11 over Tioughnioga River in Broome County, New York. It was built in 1947 and reconstructed in 1993, so it is 78 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 9,205 vehicles a day, roughly 11% of them trucks, projected to reach 9,292 by 2041. The structure is 334 ft (101.8 m) long and 58 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesRTE 11
CrossesTioughnioga River
LocationJCT US11 & Tioughnioga Rv
RouteU.S. Route 11
Coordinates42.33101, -75.96778
Functional classRural Principal Arterial - Other

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length334 ft (101.8 m)
Longest span110 ft (33.5 m)
Deck width58 ft (17.6 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,205 (2020)
Projected traffic9,292 by 2041
Trucks11%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$9.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 11 over Tioughnioga River built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1993.

What condition is RTE 11 over Tioughnioga River 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 October 2023.

How much traffic does RTE 11 over Tioughnioga River carry?

About 9,205 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is RTE 11 over Tioughnioga River?

The structure is 334 ft (101.8 m) long with a longest span of 110 ft (33.5 m) and a deck 58 ft wide.

Who owns RTE 11 over Tioughnioga River?

It is owned by the State Highway Agency.