US Bridges

SR 346-PA 346 over Tunungwant Creek

Fair

McKean County, Pennsylvania · Bradford · Structure no. 000000000039572

Built
1997
28 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
179 ft
2 main spans
Daily traffic
8,402
2024 count
Owner
State
State Highway Agency

About this bridge

SR 346-PA 346 over Tunungwant Creek is a prestressed concrete continuous box beam or girders - multiple carrying SR 346-PA 346 over Tunungwant Creek in McKean County, Pennsylvania. It was built in 1997, so it is 28 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 8,402 vehicles a day, roughly 5% of them trucks, projected to reach 10,148 by 2044. The structure is 179 ft (54.6 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR 346-PA 346
CrossesTunungwant Creek
LocationBradford
RouteState Highway 346
CountyMcKean County
StatePennsylvania
Coordinates41.97696, -78.62444
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating59 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length179 ft (54.6 m)
Longest span88 ft (26.8 m)
Deck width50 ft (15.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,402 (2024)
Projected traffic10,148 by 2044
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 346-PA 346 over Tunungwant Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is SR 346-PA 346 over Tunungwant Creek 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 2024.

How much traffic does SR 346-PA 346 over Tunungwant Creek carry?

About 8,402 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 346-PA 346 over Tunungwant Creek?

The structure is 179 ft (54.6 m) long with a longest span of 88 ft (26.8 m) and a deck 50 ft wide.

Who owns SR 346-PA 346 over Tunungwant Creek?

It is owned by the State Highway Agency.