US Bridges

US 322; SR 0322 over Swatara Creek

Good

Dauphin County, Pennsylvania · Hummelstown · Structure no. 000000000014371

Built
1953
72 years old, rebuilt 1993
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
585 ft
6 main spans
Daily traffic
41,964
2024 count
Owner
State
State Highway Agency

About this bridge

US 322; SR 0322 over Swatara Creek is a steel continuous stringer/multi-beam or girder carrying US 322; SR 0322 over Swatara Creek in Dauphin County, Pennsylvania. It was built in 1953 and reconstructed in 1993, so it is 72 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 41,964 vehicles a day, roughly 5% of them trucks, projected to reach 50,357 by 2045. The structure is 585 ft (178.3 m) long and 66 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 322; SR 0322
CrossesSwatara Creek
LocationHummelstown
RouteU.S. Route 322
Coordinates40.26093, -76.7265
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.9 US tons
Inventory rating61.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length585 ft (178.3 m)
Longest span104 ft (31.7 m)
Deck width66 ft (20 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,964 (2024)
Projected traffic50,357 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 US 322; SR 0322 over Swatara Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1993.

What condition is US 322; SR 0322 over Swatara 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 October 2024.

How much traffic does US 322; SR 0322 over Swatara Creek carry?

About 41,964 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is US 322; SR 0322 over Swatara Creek?

The structure is 585 ft (178.3 m) long with a longest span of 104 ft (31.7 m) and a deck 66 ft wide.

Who owns US 322; SR 0322 over Swatara Creek?

It is owned by the State Highway Agency.