US Bridges

Somerset ST over U.S. Route 30

Good

Somerset County, Pennsylvania · Near Stoystown · Structure no. 000000000053991

Built
2019
6 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
146
2024 count
Owner
State
State Highway Agency

About this bridge

Somerset ST over U.S. Route 30 is a prestressed concrete box beam or girders - multiple carrying Somerset ST over U.S. Route 30 in Somerset County, Pennsylvania. It was built in 2019, so it is 6 years old, younger 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 146 vehicles a day, roughly 10% of them trucks, projected to reach 226 by 2032. The structure is 71 ft (21.6 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSomerset ST
CrossesU.S. Route 30
LocationNear Stoystown
RouteState Highway 0
Coordinates40.10083, -78.95625
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span69 ft (21 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic146 (2024)
Projected traffic226 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Somerset ST over U.S. Route 30 built?

It was built in 2019, making it 6 years old in 2025.

What condition is Somerset ST over U.S. Route 30 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 July 2024.

How much traffic does Somerset ST over U.S. Route 30 carry?

About 146 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Somerset ST over U.S. Route 30?

The structure is 71 ft (21.6 m) long with a longest span of 69 ft (21 m) and a deck 35 ft wide.

Who owns Somerset ST over U.S. Route 30?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).