US Bridges

RTE 434 over RTE 363 Susquehanna Riv

Fair

Broome County, New York · JCT RTE 434 & Susquehanna · Structure no. 000000001013021

Built
1956
69 years old, rebuilt 1993
Condition
Fair
inspected December 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
648 ft
3 main spans
Daily traffic
11,462
2009 count
Owner
State
State Highway Agency

About this bridge

RTE 434 over RTE 363 Susquehanna Riv is a steel continuous girder and floorbeam system carrying RTE 434 over RTE 363 Susquehanna Riv in Broome County, New York. It was built in 1956 and reconstructed in 1993, so it is 69 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 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 11,462 vehicles a day, roughly 4% of them trucks, projected to reach 13,281 by 2041. The structure is 648 ft (197.5 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRTE 434
CrossesRTE 363 Susquehanna Riv
LocationJCT RTE 434 & Susquehanna
RouteState Highway 434
CountyBroome County
StateNew York
Coordinates42.09227, -75.91134
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length648 ft (197.5 m)
Longest span204 ft (62.1 m)
Deck width45 ft (13.7 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,462 (2009)
Projected traffic13,281 by 2041
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.9 mi (3 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$11.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 434 over RTE 363 Susquehanna Riv built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1993.

What condition is RTE 434 over RTE 363 Susquehanna Riv 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 December 2023.

How much traffic does RTE 434 over RTE 363 Susquehanna Riv carry?

About 11,462 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is RTE 434 over RTE 363 Susquehanna Riv?

The structure is 648 ft (197.5 m) long with a longest span of 204 ft (62.1 m) and a deck 45 ft wide.

Who owns RTE 434 over RTE 363 Susquehanna Riv?

It is owned by the State Highway Agency.