US Bridges

SR 120-PA 120 over Driftwood Branch

Fair

Cameron County, Pennsylvania · Emporium Boro · Structure no. 000000000008843

Built
1930
95 years old, rebuilt 2011
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
138 ft
1 main span
Daily traffic
3,036
2023 count
Owner
State
State Highway Agency

About this bridge

SR 120-PA 120 over Driftwood Branch is a steel truss - thru carrying SR 120-PA 120 over Driftwood Branch in Cameron County, Pennsylvania. It was built in 1930 and reconstructed in 2011, so it is 95 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 3,036 vehicles a day, roughly 12% of them trucks, projected to reach 4,971 by 2044. The structure is 138 ft (42.1 m) long and 31 ft wide. If it were closed, the detour would be 67.7 mi (109 km).

Location

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CarriesSR 120-PA 120
CrossesDriftwood Branch
LocationEmporium Boro
RouteState Highway 120
CountyCameron County
StatePennsylvania
Coordinates41.5106, -78.24704
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionJune 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating29 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length138 ft (42.1 m)
Longest span136 ft (41.5 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic3,036 (2023)
Projected traffic4,971 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$629,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 120-PA 120 over Driftwood Branch built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2011.

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

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

About 3,036 vehicles per day (2023 count), of which roughly 12% are trucks.

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

The structure is 138 ft (42.1 m) long with a longest span of 136 ft (41.5 m) and a deck 31 ft wide.

Who owns SR 120-PA 120 over Driftwood Branch?

It is owned by the State Highway Agency.