US Bridges

SR 546-PA 546 over Knapp Creek

Fair

McKean County, Pennsylvania · Duke Center · Structure no. 000000000025453

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
472
2024 count
Owner
State
State Highway Agency

About this bridge

SR 546-PA 546 over Knapp Creek is a concrete slab carrying SR 546-PA 546 over Knapp Creek in McKean County, Pennsylvania. It was built in 1970, so it is 55 years old, older 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 472 vehicles a day, roughly 5% of them trucks, projected to reach 571 by 2043. The structure is 28 ft (8.5 m) long and 41 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesSR 546-PA 546
CrossesKnapp Creek
LocationDuke Center
RouteState Highway 546
CountyMcKean County
StatePennsylvania
Coordinates41.95992, -78.48336
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width41 ft (12.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic472 (2024)
Projected traffic571 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$408,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 546-PA 546 over Knapp Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 546-PA 546 over Knapp 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 August 2023.

How much traffic does SR 546-PA 546 over Knapp Creek carry?

About 472 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 546-PA 546 over Knapp Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 41 ft wide.

Who owns SR 546-PA 546 over Knapp Creek?

It is owned by the State Highway Agency.