US Bridges

SR 346-PA 346 over T398/WESTERN Ny & Pa RR

Fair

McKean County, Pennsylvania · Eldred Boro · Structure no. 000000000025435

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
431 ft
4 main spans
Daily traffic
2,803
2024 count
Owner
State
State Highway Agency

About this bridge

SR 346-PA 346 over T398/WESTERN Ny & Pa RR is a steel continuous stringer/multi-beam or girder carrying SR 346-PA 346 over T398/WESTERN Ny & Pa RR in McKean County, Pennsylvania. It was built in 1975, so it is 50 years old, younger than the Pennsylvania average of 54.8 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 2,803 vehicles a day, roughly 9% of them trucks, projected to reach 4,737 by 2043. The structure is 431 ft (131.4 m) long and 48 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesSR 346-PA 346
CrossesT398/WESTERN Ny & Pa RR
LocationEldred Boro
RouteState Highway 346
CountyMcKean County
StatePennsylvania
Coordinates41.96514, -78.38549
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length431 ft (131.4 m)
Longest span154 ft (46.9 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,803 (2024)
Projected traffic4,737 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 346-PA 346 over T398/WESTERN Ny & Pa RR built?

It was built in 1975, making it 50 years old in 2025.

What condition is SR 346-PA 346 over T398/WESTERN Ny & Pa RR 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 SR 346-PA 346 over T398/WESTERN Ny & Pa RR carry?

About 2,803 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 346-PA 346 over T398/WESTERN Ny & Pa RR?

The structure is 431 ft (131.4 m) long with a longest span of 154 ft (46.9 m) and a deck 48 ft wide.

Who owns SR 346-PA 346 over T398/WESTERN Ny & Pa RR?

It is owned by the State Highway Agency.