US Bridges

Pa 164 over Sonman Run

Good

Cambria County, Pennsylvania · 0.1 MI East Pa 53 Portage · Structure no. 000000000046035

Built
2010
15 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
7,887
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 164 over Sonman Run is a concrete culvert carrying Pa 164 over Sonman Run in Cambria County, Pennsylvania. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,887 vehicles a day, roughly 12% of them trucks, projected to reach 10,996 by 2032. The structure is 23 ft (7 m) long and 50 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

CarriesPa 164
CrossesSonman Run
Location0.1 MI East Pa 53 Portage
RouteState Highway 164
Coordinates40.39261, -78.67202
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,887 (2024)
Projected traffic10,996 by 2032
Trucks12%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 164 over Sonman Run built?

It was built in 2010, making it 15 years old in 2025.

What condition is Pa 164 over Sonman Run 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 Pa 164 over Sonman Run carry?

About 7,887 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Pa 164 over Sonman Run?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 50 ft wide.

Who owns Pa 164 over Sonman Run?

It is owned by the State Highway Agency.