US Bridges

SR 120-PA 120 over Driftwood Branch Snnmhnn

Good

Cameron County, Pennsylvania · Cameron · Structure no. 000000000008850

Built
1996
29 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
431 ft
4 main spans
Daily traffic
489
2023 count
Owner
State
State Highway Agency

About this bridge

SR 120-PA 120 over Driftwood Branch Snnmhnn is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 120-PA 120 over Driftwood Branch Snnmhnn in Cameron 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 489 vehicles a day, roughly 10% of them trucks, projected to reach 691 by 2042. The structure is 431 ft (131.4 m) long and 40 ft wide. If it were closed, the detour would be 67.7 mi (109 km).

CarriesSR 120-PA 120
CrossesDriftwood Branch Snnmhnn
LocationCameron
RouteState Highway 120
Coordinates41.44401, -78.18542
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating108 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length431 ft (131.4 m)
Longest span116 ft (35.4 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic489 (2023)
Projected traffic691 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.7 mi (109 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 120-PA 120 over Driftwood Branch Snnmhnn built?

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

What condition is SR 120-PA 120 over Driftwood Branch Snnmhnn 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 May 2024.

How much traffic does SR 120-PA 120 over Driftwood Branch Snnmhnn carry?

About 489 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 120-PA 120 over Driftwood Branch Snnmhnn?

The structure is 431 ft (131.4 m) long with a longest span of 116 ft (35.4 m) and a deck 40 ft wide.

Who owns SR 120-PA 120 over Driftwood Branch Snnmhnn?

It is owned by the State Highway Agency.