US Bridges

SR 346-PA 346 over Kansas Br Knapp Creek

Good

McKean County, Pennsylvania · Duke Center · Structure no. 000000000025429

Built
1996
29 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
1,147
2024 count
Owner
State
State Highway Agency

About this bridge

SR 346-PA 346 over Kansas Br Knapp Creek is a concrete culvert carrying SR 346-PA 346 over Kansas Br Knapp Creek in McKean County, Pennsylvania. It was built in 1996, so it is 29 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,147 vehicles a day, roughly 5% of them trucks, projected to reach 1,386 by 2043. The structure is 30 ft (9.1 m) long and 37 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 346-PA 346
CrossesKansas Br Knapp Creek
LocationDuke Center
RouteState Highway 346
CountyMcKean County
StatePennsylvania
Coordinates41.94744, -78.47366
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating59 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length30 ft (9.1 m)
Longest span13 ft (4 m)
Deck width37 ft (11.3 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,147 (2024)
Projected traffic1,386 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 346-PA 346 over Kansas Br Knapp Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR 346-PA 346 over Kansas Br Knapp Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does SR 346-PA 346 over Kansas Br Knapp Creek carry?

About 1,147 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 346-PA 346 over Kansas Br Knapp Creek?

The structure is 30 ft (9.1 m) long with a longest span of 13 ft (4 m) and a deck 37 ft wide.

Who owns SR 346-PA 346 over Kansas Br Knapp Creek?

It is owned by the State Highway Agency.