US Bridges

Hassenplug Br. over Buffalo Creek

FairPosted for load

Union County, Pennsylvania · N 4th Street Mifflinburg · Structure no. 000000000033621

Built
1900
125 years old, rebuilt 2022
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
68 ft
2 main spans
Daily traffic
300
2024 count
Owner
County
County Highway Agency

About this bridge

Hassenplug Br. over Buffalo Creek is a steel continuous stringer/multi-beam or girder carrying Hassenplug Br. over Buffalo Creek in Union County, Pennsylvania. It was built in 1900 and reconstructed in 2022, so it is 125 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 1% of them trucks, projected to reach 464 by 2046. The structure is 68 ft (20.7 m) long and 15 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHassenplug Br.
CrossesBuffalo Creek
LocationN 4th Street Mifflinburg
RouteCity Street 0
CountyUnion County
StatePennsylvania
Coordinates40.92362, -77.04974
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18 US tons
Inventory rating13 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadH 10
Structure length68 ft (20.7 m)
Longest span33 ft (10.1 m)
Deck width15 ft (4.7 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck10 ft (3 m)

Traffic and service

Average daily traffic300 (2024)
Projected traffic464 by 2046
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$132,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hassenplug Br. over Buffalo Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2022.

What condition is Hassenplug Br. over Buffalo Creek 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 March 2023.

How much traffic does Hassenplug Br. over Buffalo Creek carry?

About 300 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Hassenplug Br. over Buffalo Creek?

The structure is 68 ft (20.7 m) long with a longest span of 33 ft (10.1 m) and a deck 15 ft wide.

Who owns Hassenplug Br. over Buffalo Creek?

It is owned by the County Highway Agency.