US Bridges

Pa 550 over Logan Spring Run

Fair

Huntingdon County, Pennsylvania · 0.6 Mile North of SR 4025 · Structure no. 000000000018678

Built
1930
95 years old, rebuilt 2012
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
32 ft
1 main span
Daily traffic
1,947
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 550 over Logan Spring Run is a concrete tee beam carrying Pa 550 over Logan Spring Run in Huntingdon County, Pennsylvania. It was built in 1930 and reconstructed in 2012, 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 1,947 vehicles a day, roughly 5% of them trucks, projected to reach 2,286 by 2032. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesPa 550
CrossesLogan Spring Run
Location0.6 Mile North of SR 4025
RouteState Highway 550
CountyHuntingdon County
StatePennsylvania
Coordinates40.68134, -78.19218
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,947 (2024)
Projected traffic2,286 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$638,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 550 over Logan Spring Run built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2012.

What condition is Pa 550 over Logan Spring Run 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 September 2023.

How much traffic does Pa 550 over Logan Spring Run carry?

About 1,947 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Pa 550 over Logan Spring Run?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Pa 550 over Logan Spring Run?

It is owned by the State Highway Agency.