US Bridges

SR 321-PA 321 over West Branch Clarion R

Fair

Elk County, Pennsylvania · Wilcox · Structure no. 000000000015590

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
86 ft
2 main spans
Daily traffic
2,168
2023 count
Owner
State
State Highway Agency

About this bridge

SR 321-PA 321 over West Branch Clarion R is a prestressed concrete box beam or girders - multiple carrying SR 321-PA 321 over West Branch Clarion R in Elk 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 2,168 vehicles a day, roughly 10% of them trucks, projected to reach 2,462 by 2044. The structure is 86 ft (26.2 m) long and 48 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

Location

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CarriesSR 321-PA 321
CrossesWest Branch Clarion R
LocationWilcox
RouteState Highway 321
CountyElk County
StatePennsylvania
Coordinates41.57584, -78.69181
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span42 ft (12.8 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,168 (2023)
Projected traffic2,462 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 321-PA 321 over West Branch Clarion R built?

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

What condition is SR 321-PA 321 over West Branch Clarion R 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 April 2024.

How much traffic does SR 321-PA 321 over West Branch Clarion R carry?

About 2,168 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 321-PA 321 over West Branch Clarion R?

The structure is 86 ft (26.2 m) long with a longest span of 42 ft (12.8 m) and a deck 48 ft wide.

Who owns SR 321-PA 321 over West Branch Clarion R?

It is owned by the State Highway Agency.