US Bridges

SR 120-PA 120 over Tangascootack Creek

Good

Clinton County, Pennsylvania · 4 MI Northwest Lock Haven · Structure no. 000000000012130

Built
1957
68 years old, rebuilt 2014
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
2,180
2024 count
Owner
State
State Highway Agency

About this bridge

SR 120-PA 120 over Tangascootack Creek is a prestressed concrete continuous box beam or girders - multiple carrying SR 120-PA 120 over Tangascootack Creek in Clinton County, Pennsylvania. It was built in 1957 and reconstructed in 2014, so it is 68 years old, older 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 2,180 vehicles a day, roughly 21% of them trucks, projected to reach 2,192 by 2043. The structure is 128 ft (39 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR 120-PA 120
CrossesTangascootack Creek
Location4 MI Northwest Lock Haven
RouteState Highway 120
Coordinates41.17643, -77.5492
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 48 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length128 ft (39 m)
Longest span42 ft (12.8 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,180 (2024)
Projected traffic2,192 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$918,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 120-PA 120 over Tangascootack Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2014.

What condition is SR 120-PA 120 over Tangascootack 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 April 2023.

How much traffic does SR 120-PA 120 over Tangascootack Creek carry?

About 2,180 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is SR 120-PA 120 over Tangascootack Creek?

The structure is 128 ft (39 m) long with a longest span of 42 ft (12.8 m) and a deck 43 ft wide.

Who owns SR 120-PA 120 over Tangascootack Creek?

It is owned by the State Highway Agency.