US Bridges

SR 59- Pa 59 over Blacksmith Run

Good

McKean County, Pennsylvania · Smethport · Structure no. 000000000054676

Built
2017
8 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
2,021
2024 count
Owner
State
State Highway Agency

About this bridge

SR 59- Pa 59 over Blacksmith Run is a prestressed concrete box beam or girders - multiple carrying SR 59- Pa 59 over Blacksmith Run in McKean County, Pennsylvania. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,021 vehicles a day, roughly 12% of them trucks, projected to reach 3,579 by 2044. The structure is 69 ft (21 m) long and 39 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesSR 59- Pa 59
CrossesBlacksmith Run
LocationSmethport
RouteState Highway 59
Coordinates41.81164, -78.46738
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating55.3 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length69 ft (21 m)
Longest span65 ft (19.8 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,021 (2024)
Projected traffic3,579 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 59- Pa 59 over Blacksmith Run built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR 59- Pa 59 over Blacksmith Run 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 July 2024.

How much traffic does SR 59- Pa 59 over Blacksmith Run carry?

About 2,021 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR 59- Pa 59 over Blacksmith Run?

The structure is 69 ft (21 m) long with a longest span of 65 ft (19.8 m) and a deck 39 ft wide.

Who owns SR 59- Pa 59 over Blacksmith Run?

It is owned by the State Highway Agency.